Today's Message Index:
----------------------
1. 03:57 AM - Re: Low transmit volume on Valcom 760 (Robert Feldtman)
2. 05:52 AM - Switches, Warning Light, Avionics Ground (Edward Christian)
3. 06:48 AM - Re: Switches, Warning Light, Avionics Ground (Alan Adamson)
4. 07:53 AM - Re: Garmin 430 transmitter problem (David Abrahamson)
5. 08:02 AM - Re: Z-19 (mikef)
6. 08:36 AM - Re: Garmin 430 transmitter problem (Gary Casey)
7. 10:36 AM - Z-19 - Low Voltage Monitor Module - Purpose? (mikef)
8. 10:47 AM - Re: Z-19 ()
9. 11:46 AM - Re: Plane-Power (David E. Nelson)
10. 01:00 PM - Re: Re: Garmin 430 transmitter problem (Michael W Stewart)
11. 02:07 PM - Antenna (Dennis Jones)
12. 02:36 PM - Re: Z-19 ()
13. 02:52 PM - Re: Z-19 (Hinde, Frank George (Corvallis))
14. 04:41 PM - Re: Re: Low transmit volume on Valcom 760 (Chad)
15. 06:12 PM - Re: Z-19 (LarryMcFarland)
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Subject: | Re: Low transmit volume on Valcom 760 |
Might be okay - Automatic gain control (AGC) on handheld may have cut down
the volume - try to talk to somebody a further distance away. check your
SWR. probably okay
bobf
On 7/11/07, Chad <avidflyerss@ameritech.net> wrote:
>
>
>
> Hello all, new subscriber here looking for some helpful advice.
>
> I'm finishing up my instrument panel and did some radio testing
> tonight. I have a Valcom 760 radio hooked up to a fiberglass rod type
> antenna. I can receive great, in fact I was picking up traffic in the
> pattern at an airport about 40 miles north of here with the airplane in
> my garage. That said, I switched to a known unused channel and tried
> some transmitting (listening on my handheld about 15 feet away) but the
> volume was almost inaudible. I had to practically shout into my headset
> mic in order to really hear and understand anything. I've checked some
> of the basics with the wiring and don't see anything obvious.
>
> Anyone have any tips on what to check or what the problem might be? I'm
> afraid that everyone will be able to hear me key the mic, but will
> struggle understanding me with this low output volume.
>
> Regards,
>
> Chad
>
>
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Subject: | Switches, Warning Light, Avionics Ground |
I have three questions.
1. Would you please elaborate on the current philosophy concerning
the Left/Right mag switches. In the "book" you suggest 2-3 switches
(pg. 11-18) but in the Z-11 diagram and note 2 you use the 2-5 switches.
2. I am rewiring my plane per the Z-11 diagram. I am installing a
Grand Rapids EIS which has a warning light for all types of limits
including low/high voltage and high amp draw - is there any reason to
install the low/over voltage module?
3. I am planning on building an Avionics ground block. Is there a
more detailed explanation? Do you use a connector with solder cups on
back or just install all the female D-sub pins and solder to them? Do
you have any part numbers and where to order materials? (Say to build
fig. 18-14)
Thanks,
Ed
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Subject: | Switches, Warning Light, Avionics Ground |
I continue to see this post about ground blocks for avionics, so I figured
I'd chime in. I'll take some pictures of the ones that I've built, but for
now, I hope this description will work.
A) use a DB connector with solder cups
B) get a piece of double sided copper clad curcuit board material in 1/16"
thickness
C) cut the curcuit board material such that with a DB connector pressed onto
the edge of it that the outline of the remaining board will fit inside the
DB shell that you'll use.
D) now, just solder each solder cup onto the copper clad curcuit board
E) drill and mount the terminal with the larger grounding wire to anywhere
on the remaining area of the curcuit board making sure you use a conductive
type mounting arrangement so you capture conductivity from both sides of the
board
F) you'll need to size the wire between the circuit board and the ground
post to handle the amount of load of all the ground pins
There you have it, use the gender of your choice and the size of DB
connector based upon how many items you need to ground.
Hope this helps,
Frys (online) has most of the parts, or so should any major electronics
distributor (digikey, or Mouser). In my case, I just walked into a frys and
bought it all off the shelf.
Alan
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Edward
Christian
Sent: Thursday, July 12, 2007 8:51 AM
Subject: AeroElectric-List: Switches, Warning Light, Avionics Ground
--> <edchristian@knology.net>
I have three questions.
1. Would you please elaborate on the current philosophy concerning the
Left/Right mag switches. In the "book" you suggest 2-3 switches (pg. 11-18)
but in the Z-11 diagram and note 2 you use the 2-5 switches.
2. I am rewiring my plane per the Z-11 diagram. I am installing a Grand
Rapids EIS which has a warning light for all types of limits including
low/high voltage and high amp draw - is there any reason to install the
low/over voltage module?
3. I am planning on building an Avionics ground block. Is there a more
detailed explanation? Do you use a connector with solder cups on back or
just install all the female D-sub pins and solder to them? Do you have any
part numbers and where to order materials? (Say to build fig. 18-14)
Thanks,
Ed
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Subject: | Re: Garmin 430 transmitter problem |
If it was the fuse, I don't understand why you were transmitting at
all. I will call Stark soon if I can't figure it out myself with the
list's help, but I was hoping the weak sidetone would be a helpful
clue. Thanks for your help. David
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I have a Z-19 switches usage clarification question. I am planning for this design
in a GEO/Suzuki powered aircraft.
I read the Z-19 diagram last night, I think I understand most of it.
The switches I've tried to
match them with their location on the diagram, and I think I've done
that. What I am not sure of is: which switches are used at aircraft
startup and/or flying? And is there more done with switches once the
engine is running?
I labeled the switches from left to right, A - H
A - #2 Fuel Pump
B - Secondary Power
C - Primary Power
D - Start
E - E-Bus Alt Feed
F - DC Pwr Master/Bat/Off - this is one I don't understand the purpose
of the three way position. When would you use what?
G - Alt Field - is this a circuit breaker? I did not find it on the
diagram. To be honest I'm not sure what 'Alternator Field' really means. Yes, I
am an noob.
H - Eng Bat Auto/On/Off - Again, not understanding the purpose of the
3 position switch.
My best guess for starting the aircraft would be the sequence: F to
Bat, C on, B on, Start
Clarification on these and their use is appreciated. Thanks,
Mike
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=123402#123402
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Subject: | Re: Garmin 430 transmitter problem |
Is that a fuse internal to the radio? I seem to have the same
problem. My 430 receives just fine, but transmissions are virtually
non-existent.
Gary Casey
> Time: 04:23:58 AM PST US
> Subject: Re: AeroElectric-List: Garmin 430 transmitter problem
> From: Michael W Stewart <mike.stewart@us.ibm.com>
>
>
> I had a similar problem and spent 2 weeks on it. If there is
> seperate p
> ower
> to the VOR input, then the radio looks like it works, shows tx when
> transmitting, but the transmissions are junk. In my case I could
> barely
> be
> heard by a plane next to me. Since your being heard, this may not
> be th
> e
> problem, but Id check it.
> I finally broke down and took it to Stark avionics shop. They spent
> 4 h
> ours
> on it.
> IT WAS THE COM FUSE!!!!
> Geez:
> Mike
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Subject: | Z-19 - Low Voltage Monitor Module - Purpose? |
Hi,
Can some explain the exact function of the relay output from the AEC9005 Low Voltage
Monitor Module in the Z-19 diagram?
Thanks,
Mike
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=123431#123431
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Thanks Mike,
Agreed, I asked myself the same question when reading the diagram. I
would also like to see at least a dashed line showing the leads for the
two batteries. In a dual battery installation, the setup is not always
obvious. Thanks to others for their opinions and suggestions.
Glenn
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of mikef
Sent: Thursday, July 12, 2007 11:02 AM
Subject: [Probable SPAM] AeroElectric-List: Re: Z-19
I have a Z-19 switches usage clarification question. I am planning for
this design in a GEO/Suzuki powered aircraft.
I read the Z-19 diagram last night, I think I understand most of it. The
switches I've tried to match them with their location on the diagram,
and I think I've done that. What I am not sure of is: which switches are
used at aircraft startup and/or flying? And is there more done with
switches once the engine is running?
I labeled the switches from left to right, A - H
A - #2 Fuel Pump
B - Secondary Power
C - Primary Power
D - Start
E - E-Bus Alt Feed
F - DC Pwr Master/Bat/Off - this is one I don't understand the purpose
of the three way position. When would you use what?
G - Alt Field - is this a circuit breaker? I did not find it on the
diagram. To be honest I'm not sure what 'Alternator Field' really means.
Yes, I am an noob.
H - Eng Bat Auto/On/Off - Again, not understanding the purpose of the 3
position switch.
My best guess for starting the aircraft would be the sequence: F to Bat,
C on, B on, Start
Clarification on these and their use is appreciated. Thanks,
Mike
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=123402#123402
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Hi Bob,
I was just curious if you had had any time to explore any of Plane-Power's
internally regulated alternators on that fancy alternator stand?
Thanks,
/\/elson
Austin, TX
On Mon, 29 Jan 2007, Robert L. Nuckolls, III wrote:
> <nuckollsr@cox.net>
>
> I'm pleased to inform the List that I've already received
> a response to an inquiry I mailed to Steve Klodd at Plane Power
> this morning.
>
> A copy of the exchange has been posted at:
>
> http://www.aeroelectric.com/Mfgr_Data/Alternators/Plane_Power/70129A_Plane-Power_SKlodd.pdf
>
> In a nutshell, Steve tells us that the 5A breaker illustrated in
> their wiring diagram at . . .
>
> http://plane-power.com/images/AL12_EI70%20Wiring.pdf
>
> . . . does carry field excitation current. Further, the
> OV protection module does pull down on this breaker to
> "crowbar" it open and bring a misbehaving alternator
> to heel.
>
> Further, this information confirms that operating the
> "Alternator Field" switch provides any-time, any
> conditions, any-reason, zero-risk ON/OFF control of
> the alternator which is consistent with conventions
> adopted for engine driven power sources on aircraft
> since day one.
>
> I'm pleased to make Steve's acquaintance and will
> endeavor to expand on this initiative. I'm equally
> pleased to know that my this particular product would
> live and operate happily in any system I would craft.
> I confidently endorse Plane-Power's operating philosophy
> for this product.
>
>
> Bob . . .
>
> ----------------------------------------
> ( IF one aspires to be "world class", )
> ( what ever you do must be exercised )
> ( EVERY day . . . )
> ( R. L. Nuckolls III )
> ----------------------------------------
>
>
--
~~ ** ~~ Research has shown that Mondays account for 1/7th of your time ~~ ** ~~
Message 10
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Subject: | Re: Garmin 430 transmitter problem |
No in my case it was a fuse to the com input.
No fuses nside.
Mike
Gary Casey
<glcasey@adelphia
.net>
To
Sent by: aeroelectric-list@matronics.com
owner-aeroelectri
cc
c-list-server@mat
ronics.com Subj
ect
AeroElectric-List: Re: Garmin 4
30
transmitter problem
07/12/2007 11:27
AM
Please respond to
aeroelectric-list
@matronics.com
et>
Is that a fuse internal to the radio? I seem to have the same
problem. My 430 receives just fine, but transmissions are virtually
non-existent.
Gary Casey
> Time: 04:23:58 AM PST US
> Subject: Re: AeroElectric-List: Garmin 430 transmitter problem
> From: Michael W Stewart <mike.stewart@us.ibm.com>
>
>
> I had a similar problem and spent 2 weeks on it. If there is
> seperate p
> ower
> to the VOR input, then the radio looks like it works, shows tx when
> transmitting, but the transmissions are junk. In my case I could
> barely
> be
> heard by a plane next to me. Since your being heard, this may not
> be th
> e
> problem, but Id check it.
> I finally broke down and took it to Stark avionics shop. They spent
> 4 h
> ours
> on it.
> IT WAS THE COM FUSE!!!!
> Geez:
> Mike
========================
============
========================
============
========================
============
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Bob
Would the steel tubes in the back of a tube and fabric airplane preclude an individule
from mounting a rod type (or any other type) com antenna inside the tail
of the aircraft? Would it help or hender the ground plane requirements?
Thanks again
Dennis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=123483#123483
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Larry,
Great job on the Zodiac - what a huge amount of work! You've got some
heavy duty pitot plumbing there! As you said, I see a few variations on
Bob's theme, but a job well done. I cannot see the add'l fuel pumps on
this schematic? I would be interested to see how you laid the wiring out
for them. I'm assuming you are only running 1 at a time?
Thanks
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
LarryMcFarland
Sent: Tuesday, July 10, 2007 8:50 PM
Subject: Re: AeroElectric-List: Z-19
--> <larry@macsmachine.com>
Hi Glenn,
I don't know about the diagram number, but your items match mine and I
did wire things
very closely to the AeroElectric diagrams. Absolutely no problems so
far, but for
one early on, not having a contactor replacing my internal starter relay
power.
The link below perhaps offers a different schematic view.
http://www.macsmachine.com/images/electrical/full/primary-wiring.gif
Lots of images on the engine page and electrical page
Good luck,
Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps
at www.macsmachine.com
longg@pjm.com wrote:
>
>
> I would like to hear from anyone who has implemented this diag
> successfully. I am working on a Subaru with two batteries, one
> alternator and two fuel pumps. I would like to hear about your could
> of done, should of done, could do better next time etc. How many
> gotchas are in the design and so on. Pictures would be great if you
> have them.
>
> Some of us pilots are pessimists even before we wake up!
>
> Thanks,
> Glenn
>
>
>
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|
I hope not....At least 2 for Take off and landing.
Frank
Soobed Zodiac 400 hours sold
Lyc'd RV7a 170 hours
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
longg@pjm.com
Sent: Thursday, July 12, 2007 2:35 PM
Subject: RE: AeroElectric-List: Z-19
Larry,
Great job on the Zodiac - what a huge amount of work! You've got some
heavy duty pitot plumbing there! As you said, I see a few variations on
Bob's theme, but a job well done. I cannot see the add'l fuel pumps on
this schematic? I would be interested to see how you laid the wiring out
for them. I'm assuming you are only running 1 at a time?
Thanks
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
LarryMcFarland
Sent: Tuesday, July 10, 2007 8:50 PM
Subject: Re: AeroElectric-List: Z-19
--> <larry@macsmachine.com>
Hi Glenn,
I don't know about the diagram number, but your items match mine and I
did wire things very closely to the AeroElectric diagrams. Absolutely
no problems so far, but for one early on, not having a contactor
replacing my internal starter relay
power.
The link below perhaps offers a different schematic view.
http://www.macsmachine.com/images/electrical/full/primary-wiring.gif
Lots of images on the engine page and electrical page Good luck,
Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps
at www.macsmachine.com
longg@pjm.com wrote:
>
>
> I would like to hear from anyone who has implemented this diag
> successfully. I am working on a Subaru with two batteries, one
> alternator and two fuel pumps. I would like to hear about your could
> of done, should of done, could do better next time etc. How many
> gotchas are in the design and so on. Pictures would be great if you
> have them.
>
> Some of us pilots are pessimists even before we wake up!
>
> Thanks,
> Glenn
>
>
>
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|
Subject: | Re: Low transmit volume on Valcom 760 |
I don't have access to SWR but I went further away with the handheld
(couple hundred feet I guess) and it's the same thing. You can hear and
it's relatively clear, just really quiet.
chad
Subject: Re: Low transmit volume on Valcom 760
From: Robert Feldtman (bobf@feldtman.com)
Date: Thu Jul 12 - 3:57 AM
Might be okay - Automatic gain control (AGC) on handheld may have
cut down
the volume - try to talk to somebody a further distance away. check
your
SWR. probably okay
bobf
On 7/11/07, Chad <avidflyerss@ameritech.net> wrote:
>
>
>
> Hello all, new subscriber here looking for some helpful advice.
>
> I'm finishing up my instrument panel and did some radio testing
> tonight. I have a Valcom 760 radio hooked up to a fiberglass rod
type
> antenna. I can receive great, in fact I was picking up traffic
in the
> pattern at an airport about 40 miles north of here with the
airplane in
> my garage. That said, I switched to a known unused channel and tried
> some transmitting (listening on my handheld about 15 feet away)
but the
> volume was almost inaudible. I had to practically shout into my
headset
> mic in order to really hear and understand anything. I've
checked some
> of the basics with the wiring and don't see anything obvious.
>
> Anyone have any tips on what to check or what the problem might
be? I'm
> afraid that everyone will be able to hear me key the mic, but will
> struggle understanding me with this low output volume.
>
> Regards,
>
> Chad
>
Message 15
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|
Hi Glenn,
The pumps are labeled Aux L & Aux R on the switch diagrams right above
the buses.
The master (main bus) and boost (essential bus) are both run on takeoff
and plumbed in parallel. The Aux L and Aux R
pumps (essential bus) are individually switched to pump from the wing
tanks to the header as needed thru a fuel selector valve.
The labeled connections feeding back thru the console give away where
they are going and they are all Facet 105
pumps at 5 or 7 amps. The Aux pumps on the wing tanks are wired to a
single 5 amp fuse in the main bus. I've labeled the
pumps, but find that colored shrink wrap on the switch handles, yellow
for main and boost and blue for aux pumps
helps find the right switches faster than trying to read small lettering
with my progressive-lens glasses. Anything outside the
fuselage has a ground wire back to the forest-of-tabs ground on the
firewall. I never run more than one wing pump at a time.
Note: Header tank overflow was plumbed to drain at the right wing joint
as I don't like fuel or fumes anywhere near the engine exhaust. It's not
something perhaps you were concerned with just now, but I thought it
worth noting.
You should be able to make out the pictorial arrangement for all that's
there, sometimes not so obvious.
Thanks for the compliments. It was a lot of work, but I miss it now and
must progress to a next project.
Larry
longg@pjm.com wrote:
>
> Larry,
> Great job on the Zodiac - what a huge amount of work! You've got some
> heavy duty pitot plumbing there! As you said, I see a few variations on
> Bob's theme, but a job well done. I cannot see the add'l fuel pumps on
> this schematic? I would be interested to see how you laid the wiring out
> for them. I'm assuming you are only running 1 at a time?
>
> Thanks
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
> LarryMcFarland
> Sent: Tuesday, July 10, 2007 8:50 PM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Z-19
>
>
> --> <larry@macsmachine.com>
>
> Hi Glenn,
> I don't know about the diagram number, but your items match mine and I
> did wire things
> very closely to the AeroElectric diagrams. Absolutely no problems so
> far, but for
> one early on, not having a contactor replacing my internal starter relay
>
> power.
> The link below perhaps offers a different schematic view.
> http://www.macsmachine.com/images/electrical/full/primary-wiring.gif
> Lots of images on the engine page and electrical page
> Good luck,
>
> Larry McFarland 601HDS - Subaru power, one alternator and 4 fuel pumps
> at www.macsmachine.com
>
>
> longg@pjm.com wrote:
>
>>
>>
>> I would like to hear from anyone who has implemented this diag
>> successfully. I am working on a Subaru with two batteries, one
>> alternator and two fuel pumps. I would like to hear about your could
>> of done, should of done, could do better next time etc. How many
>> gotchas are in the design and so on. Pictures would be great if you
>> have them.
>>
>> Some of us pilots are pessimists even before we wake up!
>>
>> Thanks,
>> Glenn
>>
>>
>>
>>
>
>
>
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