Today's Message Index:
----------------------
1. 04:21 AM - Re: KX125 Wiring / Nav Com Question (David & Elaine Lamphere)
2. 06:26 AM - Re: Shakeup at EAA Sport Aviation ()
3. 07:10 AM - Re: KX125 Wiring / Nav Com Question (Deene Ogden)
4. 07:36 AM - Re: Re: Shakeup at EAA Sport Aviation (Walter Fellows)
5. 09:06 AM - Re: KX125 Wiring / Nav Com Question (David & Elaine Lamphere)
6. 09:06 AM - Re: KX125 Wiring / Nav Com Question (David & Elaine Lamphere)
7. 01:13 PM - Blind Encoder Power Connection to Garmin GTX-327 Transponder (David & Elaine Lamphere)
8. 01:41 PM - Re: Blind Encoder Power Connection to Garmin GTX-327 Transponder (Mike)
9. 02:41 PM - Re: Radio problem! (Travis)
10. 03:55 PM - Re: Blind Encoder Power Connection (David & Elaine Lamphere)
11. 05:22 PM - Re: Blind Encoder Power Connection to Garmin GTX-327 Transponder (Ron Quillin)
Message 1
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Subject: | Re: KX125 Wiring / Nav Com Question |
Thanks to all that responded. Due to another persons kindness, I obtained an
installation manual for the KX125. You guys are correct in that the vor/loc
composite signal pins are used for driving an indicator. What isn't clear or
mentioned in the manual, is whether these two pins need to be jumpered (even
if you are not using an external indicator).. if there is an output AND
input involved, then does the unit need this jumper for it to function
properly?
I would guess that it won't hurt to put this jumper in anyway.. :-)
Dave
----- Original Message -----
From: "Mike" <mlas@cox.net>
Sent: Friday, August 24, 2007 10:51 PM
Subject: RE: AeroElectric-List: KX125 Wiring / Nav Com Question
>
> Those pins are used to drive certin CDIs, RMIs or HSIs that accept a
> single composite line. Older unites require the older style of direct
> analog signaling. With the composite signal you can send the
> information over one wire instead of the 6-10 from the analog style.
> Both sides have to be able to interpret a composite signal. Hope this
> helps!
>
> Mike
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of David
> & Elaine Lamphere
> Sent: Friday, August 24, 2007 2:55 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: KX125 Wiring / Nav Com Question
>
> <lamphere@vabb.com>
>
> I'm in the process of rewiring the connectors on a used King KX125
> nav/com
> and am puzzled by a couple of pins that were previously wired.
>
> Connector P501 pins H and J are labeled (according to pinout I got from
> the
> aeroelectric website):
>
> (H) VOR/LOC COMPOSITE IN and (J) VOR/LOC COMPOSITE OUT
>
> These were previously jumpered together with a wire leading off from the
>
> pair..
>
> Would someone who is familiar with NAV/COMS please explain what these
> pins
> are used for and a guess as to where they could have been connected to
> (in
> it's previous life)??
>
> Thanks,
>
> Dave
Message 2
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Subject: | Re: Shakeup at EAA Sport Aviation |
>From: "Mike" <mlas@cox.net>
>Subject: Re: Shakeup at EAA Sport Aviation
>
>But today's EAA is just a wanabe competitor to AOPA.
>
>Mike
Not sure where you are going, but I did a
little study of AOPA and EAA and what they
actually do for experimental amateur built
and flown planes.
Just for clarity AOPA is a lobby group and
represents manufactures and small non-
scheduled commercial operators, as well as
individual private operators (allegedly).
EAA is non profit and therefore can't lobby
but they do a lot of legal work clarifying
the FAR's. If you ever had a DAR tell you
that your RV-7 needs an A&P sign off because
the engine is from a certified aircraft, you
will appreciate what they do.
Since the AOPA is aligned heavily with
manufactures of certified aircraft and the
aviation business, the needs of experimental
aircraft is not a priority for them. The EAA
is all we have and they are best suited to
protect our niche of the aviation world.
There are common goals and interest between
AOPA and EAA, who do work together some
times, but not always.
In California, LA area an airport banned
experimental aircraft (tried to) and the Las
Vegas FSDO tried to restrict experimental's
from a huge block of air space. Behind the
scene the EAA solved the issue. Unlike the
AOPA the EAA did not blow their own horn.
They like to take a quite approach and not
embarrass the FAA. They where successful
in both cases.
EAA is not immune of criticism. This topic
went around the RV-list. The main complaint
I had in the past was the magazine was
dummied down and they dropped the Caf
Foundation org reports. I was told they
where too technical for most. They have done
better in the last year or so, but if you
want technical info, go to the internet,
which has replaced most topical print media.
"Contact" magazine is more technical for the
real experimenter and tinkerer.
EAA's SA magazine does need contributors. If
you have an idea for an article write it, they need
content. Many past articles where "fluff" and seemed
more like advertisement propaganda than fact.
EAA does many things to protect experimental
plane rights, building and use of airspace, fighting
made up interpretations of the FAR's by DAR's and
FAA inspectors.
If you have a question about AD compliance,
required equip or TSO'ed requirements for
experimental aircraft, they have brief on it
for members.
The EAA tax records are public record. Not
surprising on about $30 mil revenue,
expenses where almost exactly $30 mil, thus
non-profit. Not a surprise.
Tom Poberezny makes $418,000, about
1/2 million in total compensation a year as
CEO of the EAA. That seems in-line with CEO
salaries I suppose, for a $30 organization..
Airventure does bring in lots of money but
also cost a lot of money to put on.
The magazine is a huge expense on the budget.
I guess all the color pictures?
Dues are the big revenue stream.
The P-51 thing is very old news. It was about his
dad, Paul, EAA founder and former CEO. There
was some blow-up I recall about his P-51
time being paid for by the EAA. That was
resolved and I recall Paul retired soon
thereafter. Paul's still on the payroll and
makes about $80k or $160k a year?
EAA's tax return looks normal to me; the board
of directors are all volunteers. They spend a
lot on office space and professional services.
My EAA membership is based on more than the
magazine and Airventure. They do have good
programs like young eagles, and the local
chapters are also a nice thing. If you are active
in building and flying experimental aircraft the
EAA is valuable. I have talked to EAA legal
a few times and they know their stuff, surprisingly
better than the FAA. There are some old bones
in the FAA closet that they try to pass as facts.
Of all organizations, EAA does the most to protect
our incredible freedom to build and fly planes we
make with our own hands. Forces constantly are
trying to re-write and restrict those freedoms. EAA
is doing the most of us specifically, IMHO.
To be fair AOPA is the only real lobby group on
capital hill that is representing our "special interest".
Of course we can always write our DC politicians
directly. May be we should start a quasi political
group of all experimental aircraft builders/ owners.
That would be a good sized voter block. The
economy of the kit plane business and all the support
and part companies is substantial.
Cheers George EAA member since 1985
---------------------------------
Message 3
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Subject: | Re: KX125 Wiring / Nav Com Question |
The jumper is required (and I know as I just spend several weeks debugging a
KX125 installation in which the internal VOR indicator would not work). I
had to talk to the factory tech guy to get this info as the installation
schematic shows the jumper as part of a connection to an external indicator
but DOES NOT have a note indicating that the jumper is required for the
operation of the internal VOR indicator.
Deene Ogden
EAA Tech Counselor/Flight Advisor
Message 4
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Subject: | Re: Shakeup at EAA Sport Aviation |
Thanks very much for the clarification.
On 8/25/07, gmcjetpilot@yahoo.com <gmcjetpilot@yahoo.com> wrote:
>
> >From: "Mike" <mlas@cox.net>
> >Subject: Re: Shakeup at EAA Sport Aviation
> >
> >But today's EAA is just a wanabe competitor to AOPA.
> >
> >Mike
>
> Not sure where you are going, but I did a
> little study of AOPA and EAA and what they
> actually do for experimental amateur built
> and flown planes.
>
> Just for clarity AOPA is a lobby group and
> represents manufactures and small non-
> scheduled commercial operators, as well as
> individual private operators (allegedly).
>
> EAA is non profit and therefore can't lobby
> but they do a lot of legal work clarifying
> the FAR's. If you ever had a DAR tell you
> that your RV-7 needs an A&P sign off because
> the engine is from a certified aircraft, you
> will appreciate what they do.
>
> Since the AOPA is aligned heavily with
> manufactures of certified aircraft and the
> aviation business, the needs of experimental
> aircraft is not a priority for them. The EAA
> is all we have and they are best suited to
> protect our niche of the aviation world.
>
> There are common goals and interest between
> AOPA and EAA, who do work together some
> times, but not always.
> In California, LA area an airport banned
> experimental aircraft (tried to) and the Las
> Vegas FSDO tried to restrict experimental's
> from a huge block of air space. Behind the
> scene the EAA solved the issue. Unlike the
> AOPA the EAA did not blow their own horn.
> They like to take a quite approach and not
> embarrass the FAA. They where successful
> in both cases.
>
> EAA is not immune of criticism. This topic
> went around the RV-list. The main complaint
> I had in the past was the magazine was
> dummied down and they dropped the Caf=E9
> Foundation org reports. I was told they
> where too technical for most. They have done
> better in the last year or so, but if you
> want technical info, go to the internet,
> which has replaced most topical print media.
> "Contact" magazine is more technical for the
> real experimenter and tinkerer.
>
> EAA's SA magazine does need contributors. If
> you have an idea for an article write it, they need
> content. Many past articles where "fluff" and seemed
> more like advertisement propaganda than fact.
>
>
> EAA does many things to protect experimental
> plane rights, building and use of airspace, fighting
> made up interpretations of the FAR's by DAR's and
> FAA inspectors.
>
> If you have a question about AD compliance,
> required equip or TSO'ed requirements for
> experimental aircraft, they have brief on it
> for members.
> The EAA tax records are public record. Not
> surprising on about $30 mil revenue,
> expenses where almost exactly $30 mil, thus
> non-profit. Not a surprise.
>
> Tom Poberezny makes $418,000, about
> 1/2 million in total compensation a year as
> CEO of the EAA. That seems in-line with CEO
> salaries I suppose, for a $30 organization..
>
> Airventure does bring in lots of money but
> also cost a lot of money to put on.
> The magazine is a huge expense on the budget.
> I guess all the color pictures?
> Dues are the big revenue stream.
> The P-51 thing is very old news. It was about his
> dad, Paul, EAA founder and former CEO. There
> was some blow-up I recall about his P-51
> time being paid for by the EAA. That was
> resolved and I recall Paul retired soon
> thereafter. Paul's still on the payroll and
> makes about $80k or $160k a year?
>
> EAA's tax return looks normal to me; the board
> of directors are all volunteers. They spend a
> lot on office space and professional services.
>
> My EAA membership is based on more than the
> magazine and Airventure. They do have good
> programs like young eagles, and the local
> chapters are also a nice thing. If you are active
> in building and flying experimental aircraft the
> EAA is valuable. I have talked to EAA legal
> a few times and they know their stuff, surprisingly
> better than the FAA. There are some old bones
> in the FAA closet that they try to pass as facts.
>
>
> Of all organizations, EAA does the most to protect
> our incredible freedom to build and fly planes we
> make with our own hands. Forces constantly are
> trying to re-write and restrict those freedoms. EAA
> is doing the most of us specifically, IMHO.
>
>
> To be fair AOPA is the only real lobby group on
> capital hill that is representing our "special interest".
> Of course we can always write our DC politicians
> directly. May be we should start a quasi political
> group of all experimental aircraft builders/ owners.
> That would be a good sized voter block. The
> economy of the kit plane business and all the support
> and part companies is substantial.
>
>
> Cheers George EAA member since 1985
>
> *
>
===========
===========
===========
>
> *
>
>
Message 5
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Subject: | Re: KX125 Wiring / Nav Com Question |
Whoops! Make that thank you Deene
... eyes must be going!
Dave
Message 6
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Subject: | Re: KX125 Wiring / Nav Com Question |
AHAH!!! Thanks Duane!
without an external indicator, there aren't too many connections
required.
Dave
----- Original Message -----
From: Deene Ogden
To: aeroelectric-list@matronics.com
Sent: Saturday, August 25, 2007 10:07 AM
Subject: Re: AeroElectric-List: KX125 Wiring / Nav Com Question
The jumper is required (and I know as I just spend several weeks
debugging a KX125 installation in which the internal VOR indicator would
not work). I had to talk to the factory tech guy to get this info as
the installation schematic shows the jumper as part of a connection to
an external indicator but DOES NOT have a note indicating that the
jumper is required for the operation of the internal VOR indicator.
Deene Ogden
EAA Tech Counselor/Flight Advisor
Message 7
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Subject: | Blind Encoder Power Connection to Garmin GTX-327 Transponder |
Anyone have a blind altitude encoder (like an AK-350) that is getting it's
power from pin 14 (switched power output) on a Garmin GTX327 transponder?
I notice that the schematic for the Garmin says that pin is good for 1.5A
max. The encoder document says it draws .60 amp for 1 min during warm-up.
This seems to me to be OK, but what puzzles me is that the page in the
encoder that lists connections for the 320/327 has pin 15 (main power for
the 327) listed for power.
What have you guys used for powering up the blind encoder??
Thanks,
Dave
Message 8
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Subject: | Blind Encoder Power Connection to Garmin GTX-327 |
Transponder
Dave,
You can do it either way! Pin 14 is switched out limited to 1.5 amps
which is well below the use of the encoder. If you use an avionics
master you can go to pin 15 which is power into the transponder or you
could go directly to a circuit breaker.
Mike
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of David
& Elaine Lamphere
Sent: Saturday, August 25, 2007 1:12 PM
Subject: AeroElectric-List: Blind Encoder Power Connection to Garmin
GTX-327 Transponder
<lamphere@vabb.com>
Anyone have a blind altitude encoder (like an AK-350) that is getting
it's
power from pin 14 (switched power output) on a Garmin GTX327
transponder?
I notice that the schematic for the Garmin says that pin is good for
1.5A
max. The encoder document says it draws .60 amp for 1 min during
warm-up.
This seems to me to be OK, but what puzzles me is that the page in the
encoder that lists connections for the 320/327 has pin 15 (main power
for
the 327) listed for power.
What have you guys used for powering up the blind encoder??
Thanks,
Dave
7/29/2007 11:14 PM
7/29/2007 11:14 PM
Message 9
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Subject: | Re: Radio problem! |
PROBLEM SOLVED!!! The BNC connector at the antenna was gounding out. I made a
whole new cable for good measure, and all the problems are long gone!!! Thanks
for all the advice....
Travis
mprather(at)spro.net wrote:
> If you speak into the mic while transmitting, do you hear your voice (from
> the sidetone) through the headphones? Are other stations able to hear
> your transmission? With good quality? In addition to adjusting the gain,
> you might be able to adjust the sidetone volume if everything else appears
> to be working properly.
>
>
> Regards,
>
> Matt-
>
>
> >
> >
> >
> > I have an XCom radio in my RV-7A and I am having some problems
> > transmitting. I seem to receive just fine. When I push the PTT button on
> > the pilot control stick I get a static in my headset. If I push the PTT
> > button on the passenger control stick I get the same static (in the pilot
> > headset) with the same intensity. When I switch headsets to my backup
> > headset I don't hear the static when I push the PTT. HOWEVER, the problem
> > is much worse in flight (possibly due to a louder environment); on the
> > ground with the engine shut down the static is minimal. I have not tried
> > the backup headset in flight. I will fly tonight with the other headset
> > to see if this eliminates the problem, but I don't think it will. Since
> > it only happens when transmitting I am starting to think there is a
> > problem with the PTT wiring?? Any ideas to start me out? I will report
> > back with the results of using a different headset. Could this be a gain
> > adjustment needed (I can adjust the gain)?
> >
> > Travis
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=130771#130771
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=131000#131000
Message 10
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Subject: | Re: Blind Encoder Power Connection |
Thanks Mike.
I'll go with pin 14 as it will be easier just to put that wire (from
encoder-xpndr cable) on a pin and insert it into the transponder socket.
Otherwize, it would be harder to do (either putting more than one wire in a
transponder pin or running a wire back from the connector bundle).
Just wanted to be sure I was interpreting the information correctly..
Dave
----- Original Message -----
From: "Mike" <mlas@cox.net>
Sent: Saturday, August 25, 2007 4:41 PM
Subject: RE: AeroElectric-List: Blind Encoder Power Connection to Garmin
GTX-327 Transponder
>
> Dave,
>
> You can do it either way! Pin 14 is switched out limited to 1.5 amps
> which is well below the use of the encoder. If you use an avionics
> master you can go to pin 15 which is power into the transponder or you
> could go directly to a circuit breaker.
>
> Mike
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of David
> & Elaine Lamphere
> Sent: Saturday, August 25, 2007 1:12 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Blind Encoder Power Connection to Garmin
> GTX-327 Transponder
>
> <lamphere@vabb.com>
>
> Anyone have a blind altitude encoder (like an AK-350) that is getting
> it's
> power from pin 14 (switched power output) on a Garmin GTX327
> transponder?
>
> I notice that the schematic for the Garmin says that pin is good for
> 1.5A
> max. The encoder document says it draws .60 amp for 1 min during
> warm-up.
>
> This seems to me to be OK, but what puzzles me is that the page in the
> encoder that lists connections for the 320/327 has pin 15 (main power
> for
> the 327) listed for power.
>
> What have you guys used for powering up the blind encoder??
>
> Thanks,
>
> Dave
>
>
> 7/29/2007 11:14 PM
>
>
> 7/29/2007 11:14 PM
>
>
>
Message 11
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Subject: | Re: Blind Encoder Power Connection to Garmin GTX-327 |
Transponder
At 13:12 8/25/2007, you wrote:
>Anyone have a blind altitude encoder (like an AK-350) that is
>getting it's power from pin 14 (switched power output) on a Garmin
>GTX327 transponder?
Yes
>I notice that the schematic for the Garmin says that pin is good for
>1.5A max. The encoder document says it draws .60 amp for 1 min during warm-up.
OK, no problem there. 0.6A is far less than 1.5A
>This seems to me to be OK, but what puzzles me is that the page in
>the encoder that lists connections for the 320/327 has pin 15 (main
>power for the 327) listed for power.
Yes, that is the supply to the 327, and anything else powered from
pin 14 as well.
Your encoder document shows connections to/from the 327?
Either pin could be used, but should you need/want encoder output
(perhaps for a GPS/LORAN) while the transponder was off, pin 14 would
not be a good choice for encoder power.
>What have you guys used for powering up the blind encoder??
>
>Thanks,
>
>Dave
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