Today's Message Index:
----------------------
1. 12:09 AM - Re: RFI (James E. Clark)
2. 07:54 AM - ground plane (Troy Scott)
3. 08:31 AM - Re: ground plane (Neville Kilford)
4. 08:34 AM - Re: ground plane (Cy Galley)
5. 08:50 AM - What is that noise anyway? (William Yamokoski)
6. 10:17 AM - ANL's, Z14 flexibility, and cigarette lighter receptacles... (I-Blackler, Wayne R)
7. 06:39 PM - Contactors (Eric M. Jones)
8. 07:26 PM - Re: Contactors (Chris Good)
9. 07:56 PM - Re: King GNS-80 (James Freeman)
10. 07:58 PM - Re: KNS 80 (CardinalNSB@aol.com)
Message 1
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--> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
Well, give it a try on the ground with another pilot rev'ing the plane up.
Read up and make some minor adjustments BEFORE you start the engine so you
have a feel for the process and how to get to the various settings.
There are a lot of things you can adjust.
Good luck.
James
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Kevin
> and Marlys Cocozzoli
> Sent: Friday, May 30, 2003 2:22 AM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: RFI
>
>
> --> AeroElectric-List message posted by: "Kevin and Marlys
> Cocozzoli" <mcocozzoli@satx.rr.com>
>
> Thanks James, I'll look into the manual. However, since this
> static starts
> at 2000 RPM, I obviously can't fly the plane until I get this
> worked out on
> the ground. I can't hear anything but static! But I'll check the
> manual...I should've thought of that.
>
> Thanks,
>
> Kevin
>
> ----- Original Message -----
> From: "James E. Clark" <james@nextupventures.com>
> To: <aeroelectric-list@matronics.com>
> Subject: RE: AeroElectric-List: RFI
>
>
> --> AeroElectric-List message posted by: "James E. Clark"
> <james@nextupventures.com>
>
> Are you very familiar with the **digital** setting of the squelch
> and other
> items on radio (I and friends have the SL-40). There are certain
> incantations spelled out in the manual that once done make a lot of sense
> but when you read the first time may seem a little strange.
>
> Suggestion:
>
> Take a pilot friend up for a flight and while one of you is flying the
> plane, the other take the manual and make adjustments with the
> headsets that
> you are normally going to use.
>
> Of course you could do this on the ground but the noise will be slightly
> differnt and you will be running your engine for some time at 2000 RPM+
> without the benefit of cooling and scenery.
>
> Just a thought.
>
> James
>
>
> > -----Original Message-----
> > From: owner-aeroelectric-list-server@matronics.com
> > [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Kevin
> > and Marlys Cocozzoli
> > Sent: Friday, May 30, 2003 12:12 AM
> > To: aeroelectric-list@matronics.com
> > Subject: AeroElectric-List: RFI
> >
> >
> > --> AeroElectric-List message posted by: "Kevin and Marlys
> > Cocozzoli" <mcocozzoli@satx.rr.com>
> >
> > Good Evening,
> >
> > I'm having trouble with radio interference in a Glasair III
> > homebuilt I just
> > finished and need some advice on what to look for. I'm not versed in
> > avionics and there's no avionics shop at my airport.
> >
> > I have a UPSAT SL-30 Nav/Comm and SL-15 Audio Panel. The comm
> radio works
> > fine in ground tests and with the engine running at low RPM I am both
> > transmitting and receiving loud and clear. The problem surfaces when I
> > increase the throttle to take off power. At approximately 2000 RPM my
> > headset fills with static and I hear nothing but this static
> > until I reduce
> > RPM. Then everything's normal again.
> >
> > I was told by the kit maker that it may be the alternator. I pulled the
> > alternator field circuit breaker but this had no effect. I
> would like to
> > know what else I should look for as I have no idea why the radio
> > would work
> > fine until I advance the throttle. Tower states their not hearing the
> > static so it's purely internal.
> >
> > Thank you very much for any help you can provide.
> >
> > Sincerely,
> >
> > Kevin Cocozzoli
> > 210-666-6713
> >
> >
>
>
Message 2
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--> AeroElectric-List message posted by: "Troy Scott" <tscott@c-gate.net>
Bob,
I've been following the thread about the optimum ground plane for the transponder.
What is the optimum diameter for a circular ground plane? I'd like to mount
the antenna on a 7" diameter aileron bellcrank access plate on the bottom
of the wing of my Glasair. Others have done this, but I'll figure out something
else if you think I should.
Regards,
Troy Scott
Message 3
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| Subject: | Re: ground plane |
--> AeroElectric-List message posted by: "Neville Kilford" <nkilford@etravel.org>
Troy,
Here's what Bob said when I asked about this a while ago:
If the ground plane is "small" . . . like less than a wavelength
at frequency of interest, then it works best if "tuned" . . . i.e.
exactly same radius as height of antenna or 5.3" diameter.
Hope this helps.
Nev
----- Original Message -----
From: "Troy Scott" <tscott@c-gate.net>
Subject: AeroElectric-List: ground plane
> --> AeroElectric-List message posted by: "Troy Scott" <tscott@c-gate.net>
>
> Bob,
>
> I've been following the thread about the optimum ground plane for the
transponder. What is the optimum diameter for a circular ground plane? I'd
like to mount the antenna on a 7" diameter aileron bellcrank access plate on
the bottom of the wing of my Glasair. Others have done this, but I'll figure
out something else if you think I should.
>
> Regards,
> Troy Scott
>
>
Message 4
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| Subject: | Re: ground plane |
--> AeroElectric-List message posted by: "Cy Galley" <cgalley@qcbc.org>
Radius of ground plane disk should be at least the height of the transponder
antenna.
----- Original Message -----
From: "Troy Scott" <tscott@c-gate.net>
Subject: AeroElectric-List: ground plane
> --> AeroElectric-List message posted by: "Troy Scott" <tscott@c-gate.net>
>
> Bob,
>
> I've been following the thread about the optimum ground plane for the
transponder. What is the optimum diameter for a circular ground plane? I'd
like to mount the antenna on a 7" diameter aileron bellcrank access plate on
the bottom of the wing of my Glasair. Others have done this, but I'll
figure out something else if you think I should.
>
> Regards,
> Troy Scott
>
>
Message 5
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| Subject: | What is that noise anyway? |
--> AeroElectric-List message posted by: "William Yamokoski" <yamokosk@lmc.cc.mi.us>
Hi Folks,
Just chiming in on the radio headset static that people are commenting on.
I also have a situation where, on idle, there is no noise to speak of. Get
up to cruise rpm and the noise/static is very pronounced. Doesn't matter if
the intercom is on or off...speak into the microphone and loud static accompanies.
I was thinking maybe it was associated with the MicroAir 760, but now we have
other radio owners heard from as well. So just what is the source of that
static? Is there any reference anyone has so I can read about it? Thanks very
much...inquiring minds want to know.
Bill Yamokoski
Message 6
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| Subject: | ANL's, Z14 flexibility, and cigarette lighter receptacles... |
--> AeroElectric-List message posted by: "I-Blackler, Wayne R" <wayne.blackler@boeing.com>
G'Day Bob,
I have a few questions regarding my 'Z-14' system and general installation:
a) I have ANL 40 current limiters installed for both the B&C SD-20 and 40A alternators
I have installed. Aeroelectric.com states that "the 40 Amp device is suited
for all alternators 40A and below". Your Z-14 diagrams show ANL30's, and
a Matronics Search revealed that "B&C had 30's to go with the SD-20 alternator".."with
the STC'd kits". I'm confused, is my current setup of 2 x ANL40's acceptable?
b) I have the main bus (40A) supplied by 4AWG and the aux bus (20A) supplied by
10AWG. Is this acceptable in a crossfeed condition, or would 4AWG give me greater
flexibility in a SD-20 failure condition? My understanding is that functionally,
the 10AWG is 100% acceptable, but...
c) I have 20AWG supplying a cigarette lighter receptacle straight off a hot battery
bus. In your experience, is 20AWG (with 7.5A) fuse enough for general use
(GPS, small light, small vacuum), or should I increase to 10A? or more perhaps?
I have the IA-C23 handheld nav/comm drawing 1.8A during a transmit, and a
handheld GPS I'm expecting way less.. What are some of these vacuum accessories
drawing?
Thanks in advance.
Cheers
Wayne Blackler
Message 7
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--> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net>
How are contactors energized? I had always assumed that almost all of them must
have a switch to Batt+, but I could be wrong, at least one pilot says that most
of them use a switch to ground. What's going on?
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge MA 01550-2705
Phone (508) 764-2072
Email: emjones@charter.net
Message 8
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--> AeroElectric-List message posted by: "Chris Good" <chrisjgood@lycos.com>
Eric,
I believe that typically, the master contactor is energized with a switch to ground,
while the starter contactor is switched with + voltage, from the switched
output of the master contactor. This avoids an always hot wire going to the
master switch on the panel.
Regards,
Chris Good
West Bend, WI
RV-6A
--
--------- Original Message ---------
DATE: Fri, 30 May 2003 21:38:41
From: "Eric M. Jones" <emjones@charter.net>
>--> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net>
>
>How are contactors energized? I had always assumed that almost all of them must
have a switch to Batt+, but I could be wrong, at least one pilot says that most
of them use a switch to ground. What's going on?
>
>Eric M. Jones
>www.PerihelionDesign.com
>113 Brentwood Drive
>Southbridge MA 01550-2705
>Phone (508) 764-2072
>Email: emjones@charter.net
>
>
Get advanced SPAM filtering on Webmail or POP Mail ... Get Lycos Mail!
Message 9
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--> AeroElectric-List message posted by: James Freeman <flyeyes@bellsouth.net>
On Thursday, May 29, 2003, at 09:49 AM, Chris Stone wrote:
> s anyone have experience with the King KNS-80? This is an all in one
> unit that incorporates VOR/LOC/GS/DME in one box. From a panel space
> and installation standpoint it has advantages. From a reliability
> standpoint it would seem to be a single point failure item.
> Narco has a similar unit (122 D) with VOR/LOC/GS.
I've got over 700 hours behind one. Easy to use, dead reliable.
Absolute state of the art...when Jimmy Carter was president. I
recently talked to the new owner of my old Navion, and the unit still
works flawlessly, but he'sthinking about upgrading.
It is, however, an RNAV. Even a cheap GPS sort of makes the RNAV/DME
redundant and has more utility.
If it's the cheapest way you can get VOR/GS to shoot ILS approaches,
and it's a smoking deal, I'd go for it.
If you are VFR and just want to navigate, I think the biggest bang for
the buck is a Northstar M-1 Loran. About a hundred bucks on e-bay and
works great.
JFF
P.S.
It occurs to me that my old Navion is near you, in Washington State.
You might look up the registration for 2512T and see if he is ready to
make the change.
JFF
Message 10
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--> AeroElectric-List message posted by: CardinalNSB@aol.com
To Chris Stone,
I bought a KNS80 for my project Cardinal and am about to put it in, I got a
nice yellow tagged unit in great shape for well less that a grand, I've seen
them on ebay go from a few hundred dollars (ratty looking) to about $900 real
nice looking. Most but NOT ALL HAVE GLIDESLOPE so be sure to check part number
and be sure to get the tray, backplate and connectors they can be pricey to
find separately.
The kns80 I am told uses an "arinc" standard cdi, but it isn't the same as my
Narco "arinc". The cdi's are mostly not interchangeable, the King KI206 and
KI520 I believe work and the Garmin/Midcontinent I believe work but those
usually are pricey on ebay. A collins 350 or 351 work I forget which is the
glideslope model. Whan I was looking I was warned to get the "A" model of the
Collins as they corrected some problems then. I went with a KI206 indicator with
glideslope, it will also work with the garmin gps so when the garmin 430 gets
affordable I can use my cdi. That cdi will also work with the Garmin 155xl
and 300xl gps. I have been told there are some Cessna/ARC indicators that will
also work with the KNS80 and the Garmins but it was difficult getting
confirmation. I almost bought an ARC that my avionics guy said would probably
work
for $90. So if you can get that confirmed you can probably put together a unit
real reasonable. The Garmin tech told me that if it works on the King KX 165
or KNS 80 it will work on the Garmin 155/300/430/530 so that might help
determine compatability. Something about the resolver being the key factor, I
forget. Be sure the cdi has glideslope.
I knew nothing about avionics and used the internet, some club sites (this
site is new to me) Southeast Aerospace has a nice site that gives specifications
but getting confirmation of compatability across manufacturers was difficult
since nobody wants to take responsibility. As an avionics newbie that was a
problem for me and I just paid for the KING cdi, partly because it can be used
on the Garmin later.
It's big and heavy and cheap and a cooling fan is I believe recommended.
Good luck, Skip Simpson
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