Today's Message Index:
----------------------
1. 05:05 AM - Re: Snot valve and sheer coupling needed (A. Dennis Savarese)
2. 05:08 AM - Re: cooling louver door (A. Dennis Savarese)
3. 05:43 AM - Interference of GPS on Becker VHF (Hans Oortman)
4. 06:10 AM - Re: Interference of GPS on Becker VHF (A. Dennis Savarese)
5. 06:23 AM - Re: Interference of GPS on Becker VHF (Hans Oortman)
6. 06:37 AM - Re: Interference of GPS on Becker VHF (A. Dennis Savarese)
7. 06:47 AM - Re: Interference of GPS on Becker VHF (Hans Oortman)
8. 07:47 AM - Re: Interference of GPS on Becker VHF (A. Dennis Savarese)
9. 08:23 AM - Re: Interference of GPS on Becker VHF (Roger Kemp M.D.)
10. 09:27 AM - Re: Interference of GPS on Becker VHF (Hans Oortman)
11. 10:32 AM - Re: Air-start Pressure Gauge advice for Yak 55M (Scott Poehlmann)
12. 11:05 AM - Re: Interference of GPS on Becker VHF (Frank Stelwagon)
13. 02:27 PM - Install a GARMIN GPS 296 in a YAK 52 cockpit ? (vincent)
14. 04:09 PM - Re: Install a GARMIN GPS 296 in a YAK 52 cockpit ? (Roger Kemp M.D.)
15. 09:43 PM - FW: Garmin 295 Mounting (pilko2)
16. 09:51 PM - Re: Interference of GPS on Becker VHF (Yak Pilot)
17. 10:23 PM - Re: Interference of GPS on Becker VHF (Yak Pilot)
18. 10:53 PM - Re: Interference of GPS on Becker VHF (Yak Pilot)
Message 1
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| Subject: | Re: Snot valve and sheer coupling needed |
Here's the shear coupling.
http://i15.ebayimg.com/07/i/000/9a/e2/1d22_2.JPG
Steve Culp has them on his eBay store, Culps Specialties. Here's the
link to the shear coupling on eBay.
http://cgi.ebay.com/ebaymotors/Russian-Aircraft-Radial-Air-Compressor-She
ar-Coupling_W0QQcmdZViewItemQQ_trkparmsZQ7c301Q3a1Q7c293Q3a1Q7c294Q3a30QQ
_trksidZp4634Q2ec0Q2em14Q2el1262QQhashZitem2c4cedef5aQQitemZ190269222746Q
QptZMotorsQ5fAviationQ5fPartsQ5fGear
Dennis
----- Original Message -----
From: Yak 55M
To: yak-list@matronics.com
Sent: Saturday, May 16, 2009 4:55 PM
Subject: Yak-List: Snot valve and sheer coupling needed
Hi,
I am seeking both a snot valve (remove condensation from air start
system) and a sheer coupling (to attach AK50 air compressor to M-14P)
for a Yak 55M. Any advice welcome - photos of these items would also
help.
Regards,
Anthony.
Message 2
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| Subject: | Re: cooling louver door |
Not too bad on the Yak 52 if the louver has the long screw that unscrews
from the ring rather than disassembling the ring to remove the 2 nuts on
the inside end. As Doc says though, if it's the type with the nuts on
the end of the shaft, now THAT'S a real pain.
Dennis
----- Original Message -----
From: Roger Kemp M.D.
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 10:09 PM
Subject: RE: Yak-List: cooling louver door
Roge=85getting them is not a problem. Replacing them is the pain in
the ars!
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Dave "Goatboy"
Jester
Sent: Saturday, May 16, 2009 9:34 PM
To: yak-list@matronics.com
Subject: Re: Yak-List: cooling louver door
thanks doc...
----- Original Message -----
From: Roger Kemp M.D.
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 9:30 PM
Subject: RE: Yak-List: cooling louver door
Contact Doug Sapp. I bought 3 from him. They are for the CJ but they
work fine on a YAK.
doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Dave "Goatboy"
Jester
Sent: Saturday, May 16, 2009 7:35 PM
To: yak-list@matronics.com
Subject: Yak-List: cooling louver door
All:
While doing routine maintenance on my Yak 52, I found a crack in the
notched cooling louver door just below the air box on the top left side.
It is almost completely through the metal covering the wood and the
wood below feels cracked. Does anyone know of a source for the doors?
Dave Jester
http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhtt
p://www.matronics.com/contribution
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-Listhref="http://forums.matronics.com">http://forums
.matronics.comhref="http://www.matronics.com/contribution">http://www.m
atronics.com/c
http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhtt
p://www.matronics.com/contribution
Message 3
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| Subject: | Interference of GPS on Becker VHF |
Guys,
May be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.
The following happens: when on the ground GPS switched on, VHF on, engine
NOT running, no interference on VHF at all!
when on the ground GPS switched on, VHF
on, engine running (or in the air for that matter), huge interference on
VHF, S5 to 6 noise level, i.e. very difficult comms. When switching over on
battery (i.e. pulling the plug out...) the problem is as good as gone.
Has any body had this experience also and what have you done about it? I am
thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I assume
that the 28v generator is not producing a nice DC which causes something to
start generating a noise, in my case the GPS but I do not have an
explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
Message 4
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| Subject: | Re: Interference of GPS on Becker VHF |
We recently had a problem with Doc's Yak 50 with noise on the Becker
VHF. First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20
Eliminator. It removed much of the noise, but not all. Then we
installed the magneto filters directly on the P leads going into the
magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magnet
o%20Filter. Bingo.....noise eliminated. I mounted the ground strap to
the studs on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the
following problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the
52.
The following happens: when on the ground GPS switched on, VHF on,
engine NOT running, no interference on VHF at all!
when on the ground GPS switched on,
VHF on, engine running (or in the air for that matter), huge
interference on VHF, S5 to 6 noise level, i.e. very difficult comms.
When switching over on battery (i.e. pulling the plug out...) the
problem is as good as gone.
Has any body had this experience also and what have you done about it?
I am thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I
assume that the 28v generator is not producing a nice DC which causes
something to start generating a noise, in my case the GPS but I do not
have an explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
Message 5
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| Subject: | Interference of GPS on Becker VHF |
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker VHF.
First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20Elimi
nator. It removed much of the noise, but not all. Then we installed the
magneto filters directly on the P leads going into the magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magneto%20F
ilter. Bingo.....noise eliminated. I mounted the ground strap to the studs
on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.
The following happens: when on the ground GPS switched on, VHF on, engine
NOT running, no interference on VHF at all!
when on the ground GPS switched on, VHF
on, engine running (or in the air for that matter), huge interference on
VHF, S5 to 6 noise level, i.e. very difficult comms. When switching over on
battery (i.e. pulling the plug out...) the problem is as good as gone.
Has any body had this experience also and what have you done about it? I am
thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I assume
that the 28v generator is not producing a nice DC which causes something to
start generating a noise, in my case the GPS but I do not have an
explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/
Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 6
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| Subject: | Re: Interference of GPS on Becker VHF |
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
-------------------------------------------------------------------------
-----
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker
VHF. First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20
Eliminator. It removed much of the noise, but not all. Then we
installed the magneto filters directly on the P leads going into the
magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magnet
o%20Filter. Bingo.....noise eliminated. I mounted the ground strap to
the studs on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the
following problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the
52.
The following happens: when on the ground GPS switched on, VHF on,
engine NOT running, no interference on VHF at all!
when on the ground GPS switched
on, VHF on, engine running (or in the air for that matter), huge
interference on VHF, S5 to 6 noise level, i.e. very difficult comms.
When switching over on battery (i.e. pulling the plug out...) the
problem is as good as gone.
Has any body had this experience also and what have you done about
it? I am thinking on a LPF or a separate DC-DC convertor for the AvMap
GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I
assume that the 28v generator is not producing a nice DC which causes
something to start generating a noise, in my case the GPS but I do not
have an explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 7
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| Subject: | Interference of GPS on Becker VHF |
Dennis,
Thanks a lot. I'll order the lot from LoneStar. Hope this solves the
problem.
Do you happen to have some pictures of the installation, i.e. is it
difficult to install the filter on the magneto?
Since I'm doing this now I'll also install the alternator filter.
Again: thanks a lot!
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:26
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker VHF.
First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20Elimi
nator. It removed much of the noise, but not all. Then we installed the
magneto filters directly on the P leads going into the magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magneto%20F
ilter. Bingo.....noise eliminated. I mounted the ground strap to the studs
on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.
The following happens: when on the ground GPS switched on, VHF on, engine
NOT running, no interference on VHF at all!
when on the ground GPS switched on, VHF
on, engine running (or in the air for that matter), huge interference on
VHF, S5 to 6 noise level, i.e. very difficult comms. When switching over on
battery (i.e. pulling the plug out...) the problem is as good as gone.
Has any body had this experience also and what have you done about it? I am
thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I assume
that the 28v generator is not producing a nice DC which causes something to
start generating a noise, in my case the GPS but I do not have an
explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhref="ht
tp://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhref="ht
tp://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/
Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 8
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| Subject: | Re: Interference of GPS on Becker VHF |
No pictures available. It's VERY easy to install the filter on the
magneto. First, ream out the mounting hole on the tab of the magneto
filter. It must fit over the stud on the back side of the engine
accessory case round rear cover. De-solder the wire from inside the
P-lead probe (the part that screws into the magneto). Crimp a
solderless lug on the desoldered wire. Attach the crimp lug to the
screw end of the magneto filter. Solder the open end wire back into the
P-lead probe. Remove one nut and lock washer from the round accessory
case rear cover. Mount the magneto filter to this stud and secure with
the nut and lock washer just removed. Do the same for both magnetos.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 8:45 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Thanks a lot. I'll order the lot from LoneStar. Hope this solves the
problem.
Do you happen to have some pictures of the installation, i.e. is it
difficult to install the filter on the magneto?
Since I'm doing this now I'll also install the alternator filter.
Again: thanks a lot!
Hans
-------------------------------------------------------------------------
-----
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:26
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
-------------------------------------------------------------------------
---
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker
VHF. First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20
Eliminator. It removed much of the noise, but not all. Then we
installed the magneto filters directly on the P leads going into the
magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magnet
o%20Filter. Bingo.....noise eliminated. I mounted the ground strap to
the studs on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the
following problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in
the 52.
The following happens: when on the ground GPS switched on, VHF on,
engine NOT running, no interference on VHF at all!
when on the ground GPS switched
on, VHF on, engine running (or in the air for that matter), huge
interference on VHF, S5 to 6 noise level, i.e. very difficult comms.
When switching over on battery (i.e. pulling the plug out...) the
problem is as good as gone.
Has any body had this experience also and what have you done about
it? I am thinking on a LPF or a separate DC-DC convertor for the AvMap
GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I
assume that the 28v generator is not producing a nice DC which causes
something to start generating a noise, in my case the GPS but I do not
have an explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 9
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| Subject: | Interference of GPS on Becker VHF |
Two magneto filters are required.
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: Sunday, May 17, 2009 8:26 AM
Subject: Re: Yak-List: Interference of GPS on Becker VHF
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker VHF.
First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20Elimi
nator. It removed much of the noise, but not all. Then we installed the
magneto filters directly on the P leads going into the magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magneto%20F
ilter. Bingo.....noise eliminated. I mounted the ground strap to the studs
on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.
The following happens: when on the ground GPS switched on, VHF on, engine
NOT running, no interference on VHF at all!
when on the ground GPS switched on, VHF
on, engine running (or in the air for that matter), huge interference on
VHF, S5 to 6 noise level, i.e. very difficult comms. When switching over on
battery (i.e. pulling the plug out...) the problem is as good as gone.
Has any body had this experience also and what have you done about it? I am
thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I assume
that the 28v generator is not producing a nice DC which causes something to
start generating a noise, in my case the GPS but I do not have an
explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhref="ht
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Message 10
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| Subject: | Interference of GPS on Becker VHF |
Thanks Dennis...thanks Doc! I'll give it a go.
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 16:43
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
No pictures available. It's VERY easy to install the filter on the magneto.
First, ream out the mounting hole on the tab of the magneto filter. It must
fit over the stud on the back side of the engine accessory case round rear
cover. De-solder the wire from inside the P-lead probe (the part that
screws into the magneto). Crimp a solderless lug on the desoldered wire.
Attach the crimp lug to the screw end of the magneto filter. Solder the
open end wire back into the P-lead probe. Remove one nut and lock washer
from the round accessory case rear cover. Mount the magneto filter to this
stud and secure with the nut and lock washer just removed. Do the same for
both magnetos.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 8:45 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Thanks a lot. I'll order the lot from LoneStar. Hope this solves the
problem.
Do you happen to have some pictures of the installation, i.e. is it
difficult to install the filter on the magneto?
Since I'm doing this now I'll also install the alternator filter.
Again: thanks a lot!
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:26
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman <mailto:pa3arw@euronet.nl>
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
_____
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker VHF.
First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20Elimi
nator. It removed much of the noise, but not all. Then we installed the
magneto filters directly on the P leads going into the magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magneto%20F
ilter. Bingo.....noise eliminated. I mounted the ground strap to the studs
on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans <mailto:pa3arw@euronet.nl> Oortman
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.
The following happens: when on the ground GPS switched on, VHF on, engine
NOT running, no interference on VHF at all!
when on the ground GPS switched on, VHF
on, engine running (or in the air for that matter), huge interference on
VHF, S5 to 6 noise level, i.e. very difficult comms. When switching over on
battery (i.e. pulling the plug out...) the problem is as good as gone.
Has any body had this experience also and what have you done about it? I am
thinking on a LPF or a separate DC-DC convertor for the AvMap GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I assume
that the 28v generator is not producing a nice DC which causes something to
start generating a noise, in my case the GPS but I do not have an
explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhref="ht
tp://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
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Message 11
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| Subject: | Re: Air-start Pressure Gauge advice for Yak 55M |
Hi Anthony,
I fitted a US gauge into my cockpit. The guage was from McMaster-Carr,
P/N 384K107 (2% mid-scale accuracy 2" dial, 1/4" NPT Panel mount back
0-1000 PSI). It will require a line from a T into the air system (mine
is on the outlet side of the bottle), and a fabricated mounting flange
(mine is mounted to the floor on the left of the cockpit just forward of
the seat pan edge. Contact me off-list if you would like to see photos.
I think the gauge cost about $15.00 with shipping and all.
Scott
Yak 55M wrote:
> Hi,
>
> I would like to know if anyone has a recommendation for a cockpit
> mounted gauge to show pressure in air-start system (besides the common
> gauges used in Yak 50s and 52s). I am in the process of installing a
> compressor and don't want to spend the money on the standard gauge
> since I don't have a reserve tank and am just interested in the main
> tank pressure.
>
> Thanks,
>
> Anthony.
> *
>
>
> *
Message 12
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| Subject: | Re: Interference of GPS on Becker VHF |
Make sure that you have a GOOD ground wire from the engine to the
structure.
Frank
N23021
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 6:45 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Thanks a lot. I'll order the lot from LoneStar. Hope this solves the
problem.
Do you happen to have some pictures of the installation, i.e. is it
difficult to install the filter on the magneto?
Since I'm doing this now I'll also install the alternator filter.
Again: thanks a lot!
Hans
-------------------------------------------------------------------------
-----
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:26
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
Yes, we installed both filters.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 8:22 AM
Subject: RE: Yak-List: Interference of GPS on Becker VHF
Dennis,
Did you install the in-line filter as well as the magneto filter??
Hans
-------------------------------------------------------------------------
---
Van: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Savarese
Verzonden: zondag 17 mei 2009 15:03
Aan: yak-list@matronics.com
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF
We recently had a problem with Doc's Yak 50 with noise on the Becker
VHF. First we installed a nice inline filter on the DC buss;
http://www.lonestaraviation.com/product_details.asp?Product_Name=The%20
Eliminator. It removed much of the noise, but not all. Then we
installed the magneto filters directly on the P leads going into the
magnetos.
http://www.lonestaraviation.com/product_details.asp?Product_Name=Magnet
o%20Filter. Bingo.....noise eliminated. I mounted the ground strap to
the studs on the accessory case back plate.
Dennis
----- Original Message -----
From: Hans Oortman
To: yak-list@matronics.com
Sent: Sunday, May 17, 2009 7:42 AM
Subject: Yak-List: Interference of GPS on Becker VHF
Guys,
May be some of you on the yak net has some idea how to resolve the
following problem. Mark any suggestions??
I own a Avmap IV GPS, great tool but it is getting a nuisance in
the 52.
The following happens: when on the ground GPS switched on, VHF on,
engine NOT running, no interference on VHF at all!
when on the ground GPS switched
on, VHF on, engine running (or in the air for that matter), huge
interference on VHF, S5 to 6 noise level, i.e. very difficult comms.
When switching over on battery (i.e. pulling the plug out...) the
problem is as good as gone.
Has any body had this experience also and what have you done about
it? I am thinking on a LPF or a separate DC-DC convertor for the AvMap
GPS.
In principle the AvMap swallows any voltage between 10 and 36v. I
assume that the 28v generator is not producing a nice DC which causes
something to start generating a noise, in my case the GPS but I do not
have an explanation for that at all....
Any help is appreciated!
Hans
RA3326K / EHSE
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronhre
f="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
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Message 13
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| Subject: | Install a GARMIN GPS 296 in a YAK 52 cockpit ? |
Someone had an idea where to install a garmin GPS 296 in a yak 52 cockpit ?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=244419#244419
Message 14
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| Subject: | Install a GARMIN GPS 296 in a YAK 52 cockpit ? |
I mounted my 295 initially (now changed to 396) to the ventilation tube
between my legs. I used a RAM-B-108 base with strap clamp (P/N 11-02003) to
attach the ball base to the side of the tube. I then used the RAM-B-138-GAZ
(P/N 11-01766) to mount the ball clamp parallel to the tube with Garmin
sitting in front of the flat plate on the vent tube. I bought the mounts
from Aircraft Spruce.
Hope this helps.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of vincent
Sent: Sunday, May 17, 2009 4:27 PM
Subject: Yak-List: Install a GARMIN GPS 296 in a YAK 52 cockpit ?
<vincent.kollmannsberger@wanadoo.fr>
Someone had an idea where to install a garmin GPS 296 in a yak 52 cockpit ?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=244419#244419
Message 15
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| Subject: | FW: Garmin 295 Mounting |
Subject: Garmin 295 Mounting
This worked for me- fabricated a simple stainless steel bracket and fixed it
as in the image attached.
For the eagle eyed amongst you listers - Yes that is Russian airspace just
visible on the GPS.
kp
Message 16
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| Subject: | Re: Interference of GPS on Becker VHF |
One of the most common sources of interference to radios is from the P lead
s.- One of the most common causes for that is the loss of a ground for th
e shield.- The way this happens is when you unscrew the P lead connector
on the mag itself, you do not also hold the shield cup on the back of the P
lead connector still as you unscrew the P lead connector itself.- The re
sult of this is that you end up twisting the shield right off the connector
. =0A=0AWhen you do this, the shield is no longer grounded.- If the shiel
d is not grounded, it will radiate noise just like there was no shield ther
e to begin with and your radios will be filled with static and noise.-
=0A=0ASo, before you go out and install any kind of filters, ALWAYS make su
re that your P LEAD shields are indeed correctly soldered and attached to t
he P lead connector itself.- =0A=0AIf everything is ok in that department
and you still have noise and decide to try a P lead filter, install it any
way you choose, but make certain that when you are done, the P lead shield
itself still has a proper ground on it, if not at the P lead connector its
elf, then in some other manner as you see fit.- Do not allow the P lead w
ire shield "float", and keep the amount of unshielded P lead wire as short
as possible when installing a filter and keep the length of the wire from t
he P lead shield to ground as short as possible as well.- =0A=0AAnother t
errific source of noise is the Tach Gen, and if the shield on that wire bun
dle breaks, the noise can be so strong it will burn out the receiver on a B
alkan 5.- =0A=0AMark Bitterlich=0A=0A-=0A=0A=0A=0A_____________________
___________=0AFrom: Roger Kemp M.D. <viperdoc@mindspring.com>=0ATo: yak-lis
t@matronics.com=0ASent: Monday, May 18, 2009 11:10:52 AM=0ASubject: RE: Yak
-List: Interference of GPS on Becker VHF=0A=0A=0ATwo magneto filters are re
quired.=0ADoc=0A-=0AFrom:owner-yak-list-server@matronics.com [mailto:owne
r-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese=0ASent: Su
nday, May 17, 2009 8:26 AM=0ATo: yak-list@matronics.com=0ASubject: Re: Yak-
List: Interference of GPS on Becker VHF=0A-=0AYes, we installed both filt
ers.=0ADennis=0A----- Original Message ----- =0AFrom:Hans Oortman =0ATo:yak
-list@matronics.com =0ASent:Sunday, May 17, 2009 8:22 AM=0ASubject:RE: Yak-
List: Interference of GPS on Becker VHF=0A-=0ADennis,=0A-=0ADid you ins
tall the in-line filter as well as the magneto filter??=0A-=0AHans=0A-
=0A=0A________________________________=0A=0AVan:owner-yak-list-server@matro
nics.com [mailto:owner-yak-list-server@matronics.com] Namens A. Dennis Sava
rese=0AVerzonden: zondag 17 mei 2009 15:03=0AAan: yak-list@matronics.com=0A
Onderwerp: Re: Yak-List: Interference of GPS on Becker VHF=0AWe recently ha
d a problem with Doc's Yak 50 with noise on the Becker VHF.- First we ins
talled a nice inline filter on the DC buss; http://www.lonestaraviation.com
/product_details.asp?Product_Name=The%20Eliminator.- It removed much of
the noise, but not all.- Then we installed the magneto filters directly
on the P leads going into the magnetos.- http://www.lonestaraviation.com/
product_details.asp?Product_Name=Magneto%20Filter.- Bingo.....noise eli
minated.- I mounted the ground strap to the studs on the accessory case b
ack plate.=0ADennis=0A-=0A----- Original Message ----- =0AFrom:Hans Oortm
an =0ATo:yak-list@matronics.com =0ASent:Sunday, May 17, 2009 7:42 AM=0ASubj
ect:Yak-List: Interference of GPS on Becker VHF=0A-=0AGuys,=0A-=0AMay b
e some of you on the yak net has some idea how to resolve the following pro
blem. Mark any suggestions??=0A-=0AI own a Avmap IV GPS, great tool but i
t is getting a nuisance in the 52.=0A-=0AThe following happens: when on t
he ground GPS switched on,-VHF on, engine NOT running, no-interference
on VHF at all!=0A-------------------
-------------- when on the ground-GPS switche
d on, VHF on, engine running (or in the air for that matter), huge interfer
ence on VHF, S5 to 6 noise level, i.e. very difficult comms. When switching
over on battery (i.e. pulling the plug out...) the problem is as good as g
one.=0A-=0AHas any body had this experience also and what have you done a
bout it? -I am thinking on a LPF or a separate DC-DC convertor for the Av
Map GPS.=0AIn principle the AvMap swallows any voltage between 10 and 36v.
I assume that the 28v generator is not producing a nice DC which causes som
ething to start generating a noise, in my case the GPS but I do not have an
explanation for that at all....=0A-=0AAny help is appreciated!=0A-=0AH
ans =0ARA3326K / EHSE=0A -=0A -=0Ahref="http://www.matronics.com/Navi
gator?Yak-List">http://www.matronhref="http://forums.matronics.com">http:
//forums.matronics.com=0Ahref="http://www.matronics.com/contribution">htt
p://www.matronics.com/c=0A -=0A -=0Ahref="http://www.matronics.com/Na
vigator?Yak-List">http://www.matronhref="http://forums.matronics.com">htt
p://forums.matronics.com=0Ahref="http://www.matronics.com/contribution">h
ttp://www.matronics.com/c=0A -=0A -=0Ahref="http://www.matronics.com/
Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List=0Ahref="h
ttp://forums.matronics.com">http://forums.matronics.com=0Ahref="http://ww
w.matronics.com/contribution">http://www.matronics.com/c=0A -=0A -=0Aht
tp://www.matronics.com/Navigator?Yak-List=0Ahttp://forums.matronics.com=0Ah
=======================
Message 17
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| Subject: | Re: Interference of GPS on Becker VHF |
I am not at all sure-what the actual details are here.- =0A=0AThe fact
that you are talking about a GPS and a RADIO- makes me think that somehow
the problem involves both instruments.- =0A=0AI understand that there is
no problem when the engine is not running. =0A=0AI understand that there i
s a problem when the engine IS running, =0A=0ABut are you-saying that whe
n you unplug the GPS from the aircraft power source and run it on batteries
that the noise on the radio goes away?- =0A=0AYou mention "pulling the p
lug out" and then the noise goes away.- WHAT PLUG?-- GPS power plug?
- Radio power plug?-- Aircraft external power plug?- What? =0A=0ATh
ere are two ways that noise can get into a radio.- One is from noise that
comes into the antenna itself.- This can easily be noise from a MAG P Le
ad caused by a broken shield, or just a real noisy mag for that matter.-
Fixing the shield on the P lead, and in some cases adding a MAG P LEAD FILT
ER, will help radio noise that is caused by this kind of energy getting int
o the antenna.- =0A=0AThe other way noise can get in is via the power wir
ing to the radio itself.- Sometimes the noise from mag P leads can actual
ly put noise into the power wiring as well and again, checking the shieldin
g and maybe installing a filter can help.- =0A=0ABUT!!!!!!!=0A=0AIf you a
re saying that you have noise on the radio, but when you unplug the power t
o the GPS, the noise to the radio goes away, then it can be an entirely dif
ferent problem and have little to do with P leads, or broken shielding, etc
.- =0A=0AIn many cases, processor noise can ride out a power line on a de
vice, couple to the power- buss and be felt on other devices.- This can
often be cured by using an RF Choke on the power wire itself... such as th
e GPS power wire, and the power wiring going to the radio.- This is norma
lly done by adding a toroidal choke.- You can see these installed on most
old computer monitor power cables as the large "bulge" in the cable.- Ra
dio Shack used to sell them, but I am not sure if they do anymore.- Any t
ype 43 ferrite core will work, and you just wrap the power wires through th
e thing much like you would wrap wires through a donut.-=0A=0AReading you
r problem through for the third time, it does sound like to me you really a
re saying that the problem goes away completely when you unplug the GPS fro
m the aircraft power source with the engine running.--- If that is in
deed the case, it is doubtful that P lead filters or DC bus filters will he
lp.- In your case, it is likely that what is causing the problem is the i
nternal battery charger in the GPS unit itself putting a noise back onto th
e aircraft power bus which is getting into the radios wiring... or worse ye
t, that the GPS battery charger is RADIATING a noise that is getting into t
he radios antenna.- Easy to tell... unplug the antenna to the radio and s
ee if the noise goes away or gets much less.- Also, take a handheld radio
and hold it near the GPS with it plugged into the aircraft and the aircraf
t running.- If you hear it loudly in the handheld, remove the handheld an
tenna and see if it goes away.- If it does, it is radiated
noise getting into the antenna.- If you do not hear the noise in the han
dheld at all, and you hear it in your aircraft radio with the aircraft ante
nna unhooked as well, then it is getting into the power wiring and coming i
n that way.- In that case, you need to install a good toroidal choke on t
he GPS power wiring as close to the GPS unit itself as possible.- If THAT
does not work, then-well... take 2 aspirin get plenty of rest and send m
e a personal email.-----=0A=0AMark Bitterlich=0A=0A=0A=0A=0A=0A
=0A________________________________=0AFrom: Hans Oortman <pa3arw@euronet.nl
>=0ATo: yak-list@matronics.com=0ASent: Sunday, May 17, 2009 8:42:40 AM=0ASu
bject: Yak-List: Interference of GPS on Becker VHF=0A=0A=0AGuys,=0A-=0AMa
y be some of you on the yak net has some idea how to resolve the following
problem. Mark any suggestions??=0A-=0AI own a Avmap IV GPS, great tool bu
t it is getting a nuisance in the 52.=0A-=0AThe following happens: when o
n the ground GPS switched on,-VHF on, engine NOT running, no-interferen
ce on VHF at all!=0A------------------
--------------- when on the ground-GPS swit
ched on, VHF on, engine running (or in the air for that matter), huge inter
ference on VHF, S5 to 6 noise level, i.e. very difficult comms. When switch
ing over on battery (i.e. pulling the plug out...) the problem is as good a
s gone.=0A=0AHas any body had this experience also and what have you done a
bout it? -I am thinking on a LPF or a separate DC-DC convertor for the Av
Map GPS.=0AIn principle the AvMap swallows any voltage between 10 and 36v.
I assume that the 28v generator is not producing a nice DC which causes som
ething to start generating a noise, in my case the GPS but I do not have an
explanation for that at all....=0A-=0AAny help is appreciated!=0A=0AHans
==============
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| Subject: | Re: Interference of GPS on Becker VHF |
Let me clarify a little here.- There is a shielded P lead wire.- The ce
nter conductor is soldered to a little device that fits into the mag itself
and makes an internal connection to the mag coil.- You push this into th
e mag P lead hole and THEN screw on the outer shell per se.- =0A=0AThe sh
ield for this wire is soldered to a wire CUP that fits into the screw on po
rtion of the mag P lead connector AKA "The Shell".- When you screw in the
P lead connector onto the mag, or OFF of the mag, it is very easy to turn
the threaded portion and ALSO turn the little piece that is soldered to the
shield.- If you DO turn this little piece as you screw off the threaded
portion of the P lead connector, you will also twist the shield, and in so-
doing will cause the shield to rip off from the connector.- Thus the shie
ld is no longer connected and there is no ground for it.- =0A=0AIt is lik
e MASSIVELY EASY to do this!-- EVERY SINGLE AIRCRAFT USING AN M-14 ENGI
NE I HAVE EVER SEEN HAS AT LEAST SOME DAMAGE IN THIS AREA!- Every single
one.- This WILL cause radio noise.-- Every time.-- (Hans, your pr
oblem is likely something else) =0A=0AThe only way to avoid doing it is to
"somehow" carefully hold that cup piece that sticks out the back of the thr
eaded portion of the connector (the NUT per se) still as you turn the piece
that screws off with your hand.- I have a special tool made to do this.
- You can use needle nose pliers if you are careful.-- But if you ign
ore this advice and take off a P lead connector... you have VERY HIGH ODDS
of damaging the shield.- =0A=0ARest assured, if you didn't know this, it
is even money that your P lead shields are at the very minimum "damaged" if
not completely broken. =0A=0AMark=0A=0A-=0A=0A=0A=0A____________________
____________=0AFrom: Yak Pilot <yakplt@yahoo.com>=0ATo: yak-list@matronics.
com=0ASent: Monday, May 18, 2009 12:47:56 AM=0ASubject: Re: Yak-List: Inter
ference of GPS on Becker VHF=0A=0A=0AOne of the most common sources of inte
rference to radios is from the P leads.- One of the most common causes fo
r that is the loss of a ground for the shield.- The way this happens is w
hen you unscrew the P lead connector on the mag itself, you do not also hol
d the shield cup on the back of the P lead connector still as you unscrew t
he P lead connector itself.- The result of this is that you end up twisti
ng the shield right off the connector. =0A=0AWhen you do this, the shield i
s no longer grounded.- If the shield is not grounded, it will radiate noi
se just like there was no shield there to begin with and your radios will b
e filled with static and noise.- =0A=0ASo, before you go out and install
any kind of filters, ALWAYS make sure that your P LEAD shields are indeed c
orrectly soldered and attached to the P lead connector itself.- =0A=0AIf
everything is ok in that department and you still have noise and decide to
try a P lead filter, install it any way you choose, but make certain that w
hen you are done, the P lead shield itself still has a proper ground on it,
if not at the P lead connector itself, then in some other manner as you se
e fit.- Do not allow the P lead wire shield "float", and keep the amount
of unshielded P lead wire as short as possible when installing a filter and
keep the length of the wire from the P lead shield to ground as short as p
ossible as well.- =0A=0AAnother terrific source of noise is the Tach Gen,
and if the shield on that wire bundle breaks, the noise can be so strong i
t will burn out the receiver on a Balkan 5.- =0A=0AMark Bitterlich=0A=0A
-=0A=0A=0A=0A________________________________=0AFrom: Roger Kemp M.D. <vi
perdoc@mindspring.com>=0ATo: yak-list@matronics.com=0ASent: Monday, May 18,
2009 11:10:52 AM=0ASubject: RE: Yak-List: Interference of GPS on Becker VH
F=0A=0A=0ATwo magneto filters are required.=0ADoc=0A-=0AFrom:owner-yak-li
st-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Beh
alf Of A. Dennis Savarese=0ASent: Sunday, May 17, 2009 8:26 AM=0ATo: yak-li
st@matronics.com=0ASubject: Re: Yak-List: Interference of GPS on Becker VHF
=0A-=0AYes, we installed both filters.=0ADennis=0A----- Original Message
----- =0AFrom:Hans Oortman =0ATo:yak-list@matronics.com =0ASent:Sunday, May
17, 2009 8:22 AM=0ASubject:RE: Yak-List: Interference of GPS on Becker VHF
=0A-=0ADennis,=0A-=0ADid you install the in-line filter as well as the
magneto filter??=0A-=0AHans=0A-=0A=0A________________________________
=0A=0AVan:owner-yak-list-server@matronics.com [mailto:owner-yak-list-server
@matronics.com] Namens A. Dennis Savarese=0AVerzonden: zondag 17 mei 2009 1
5:03=0AAan: yak-list@matronics.com=0AOnderwerp: Re: Yak-List: Interference
of GPS on Becker VHF=0AWe recently had a problem with Doc's Yak 50 with noi
se on the Becker VHF.- First we installed a nice inline filter on the DC
buss; http://www.lonestaraviation.com/product_details.asp?Product_Name=Th
e%20Eliminator.- It removed much of the noise, but not all.- Then we in
stalled the magneto filters directly on the P leads going into the magnetos
.- http://www.lonestaraviation.com/product_details.asp?Product_Name=Mag
neto%20Filter.- Bingo.....noise eliminated.- I mounted the ground strap
to the studs on the accessory case back plate.=0ADennis=0A-=0A----- Orig
inal Message ----- =0AFrom:Hans Oortman =0ATo:yak-list@matronics.com =0ASen
t:Sunday, May 17, 2009 7:42 AM=0ASubject:Yak-List: Interference of GPS on B
ecker VHF=0A-=0AGuys,=0A-=0AMay be some of you on the yak net has some
idea how to resolve the following problem. Mark any suggestions??=0A-=0AI
own a Avmap IV GPS, great tool but it is getting a nuisance in the 52.=0A
-=0AThe following happens: when on the ground GPS switched on,-VHF on,
engine NOT running, no-interference on VHF at all!=0A------
-------------------------
-- when on the ground-GPS switched on, VHF on, engine running (or in
the air for that matter), huge interference on VHF, S5 to 6 noise level, i.
e. very difficult comms. When switching over on battery (i.e. pulling the p
lug out...) the problem is as good as gone.=0A-=0AHas any body had this e
xperience also and what have you done about it? -I am thinking on a LPF o
r a separate DC-DC convertor for the AvMap GPS.=0AIn principle the AvMap sw
allows any voltage between 10 and 36v. I assume that the 28v generator is n
ot producing a nice DC which causes something to start generating a noise,
in my case the GPS but I do not have an explanation for that at all....=0A
-=0AAny help is appreciated!=0A-=0AHans =0ARA3326K / EHSE=0A -=0A -
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