KR> Transceiver Electrical

[Randy Smith]

How close is the antenna for the radio to the
transponder. I would also move the ground wire to a
separate log

--- Mark Jones  wrote:

> My panel mount transceiver and transponder with
> encoder all work great with very strong signals
> reception etc.. However, when I key my mike via a
> control stick mounted PTT button, I notice that the
> ident light on my transponder will glow brightly
> while transmitting. ATC has never said anything
> about me identing on the scope when I transmit so I
> do not think that is happening. So would anyone have
> any insight why I light up my ident button when I
> transmit? Thanks
> 
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
> 
> PH: 262-781-5310
>800-242-2219
> Fax: 262-781-4130
> 
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
> 
> 
> 
> ___
> Search the KRnet Archives at
> http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to
> krnet-le...@mylist.net
> please see other KRnet info at
> http://www.krnet.org/info.html
> 

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KR> Transceiver Electrical

[Mark Jones]

Yesterday, I checked all wiring to the transponder and transceiver. All hook 
ups are correct. I then disconnected the transceiver antenna at the radio 
and the symptom went away. Hooked it back up and when I transmitted it lit 
up the ident transmit button. Both the antenna coax cables are run together 
down the fuselage side to behind the seat where they split up again. I think 
I may need to run one antenna down one side of the fuselage and the other 
down the opposite side. The way they are, I feel the transponder coax is 
picking up the transmit signal of the radio tricking it into lighting up the 
ident button. .

Mark Jones (N886MJ)
Wales, WI
Visit my web site: www.flykr2s.com
E-mail: flyk...@wi.rr.com
- Original Message - 
From: "Randy Smith" <crz...@yahoo.com>
To: "KRnet" <kr...@mylist.net>
Sent: Sunday, August 20, 2006 7:42 AM
Subject: Re: KR> Transceiver Electrical


> How close is the antenna for the radio to the
> transponder. I would also move the ground wire to a
> separate log
>
> --- Mark Jones <mjo...@muellersales.com> wrote:
>
>> My panel mount transceiver and transponder with
>> encoder all work great with very strong signals
>> reception etc.. However, when I key my mike via a
>> control stick mounted PTT button, I notice that the
>> ident light on my transponder will glow brightly
>> while transmitting. ATC has never said anything
>> about me identing on the scope when I transmit so I
>> do not think that is happening. So would anyone have
>> any insight why I light up my ident button when I
>> transmit? Thanks
>>
>> Mark Jones
>> Mueller Sales Corp.
>> 3725 N. 126th Street
>> Brookfield, WI  53005
>>
>> PH: 262-781-5310
>>800-242-2219
>> Fax: 262-781-4130
>>
>> Mailto:mjo...@muellersales.com
>> Web: http://www.muellersales.com
>>
>>
>>
>> ___
>> Search the KRnet Archives at
>> http://www.maddyhome.com/krsrch/index.jsp
>> to UNsubscribe from KRnet, send a message to
>> krnet-le...@mylist.net
>> please see other KRnet info at
>> http://www.krnet.org/info.html
>>
>
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> http://mail.yahoo.com
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> ___
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> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html 

KR> Transceiver Electrical

[Mark Langford]

Mark Jones wrote:

>  The way they are, I feel the transponder coax is
> picking up the transmit signal of the radio tricking it into lighting up
the
> ident button.

You probably meant to say that transmitting on the radio sends out enough
spurious signals so that it tricks the transponder into sending an ident
signal, rather than just turning on the light.  I have one coax on one side
of the fuselage and one on the other, for that very reason, and it works.  I
should mention that my tranponder turned up dead one day, and an avionics
buddy says it could be due to the fact that I faired the little antenna in
with foam and glass, then painted it.  He said even a coat of paint could
change the characteristics, but foam and fiberglass could conceivable cause
real problems, which may be why my transponder croaked.  I now have a Bendix
blade antenna that I'll put in place when I get the transponder back.

Mark Langford, Huntsville, Alabama
see KR2S project N56ML at http://home.hiwaay.net/~langford
email to N56ML "at" hiwaay.net
--

KR> Transceiver Electrical

[Mark Jones]

Could be, but I have never had ATC say that I am identing when I transmit 
that is why I am hoping that it simply is lighting the button and not 
actually identing. But then I have not asked them to check either. Next time 
I am up, I intend to do that. I was going to do it today but they were way 
too busy to ask for favors like testing equipment.

Mark Jones (N886MJ)
Wales, WI
Visit my web site: www.flykr2s.com
E-mail: flyk...@wi.rr.com
- Original Message - 
From: "Mark Langford" <n5...@hiwaay.net>
To: "KRnet" <kr...@mylist.net>
Sent: Sunday, August 20, 2006 1:54 PM
Subject: Re: KR> Transceiver Electrical


> Mark Jones wrote:
>
>>  The way they are, I feel the transponder coax is
>> picking up the transmit signal of the radio tricking it into lighting up
> the
>> ident button.
>
> You probably meant to say that transmitting on the radio sends out enough
> spurious signals so that it tricks the transponder into sending an ident
> signal, rather than just turning on the light.  I have one coax on one 
> side
> of the fuselage and one on the other, for that very reason, and it works. 
> I
> should mention that my tranponder turned up dead one day, and an avionics
> buddy says it could be due to the fact that I faired the little antenna in
> with foam and glass, then painted it.  He said even a coat of paint could
> change the characteristics, but foam and fiberglass could conceivable 
> cause
> real problems, which may be why my transponder croaked.  I now have a 
> Bendix
> blade antenna that I'll put in place when I get the transponder back.
>
> Mark Langford, Huntsville, Alabama
> see KR2S project N56ML at http://home.hiwaay.net/~langford
> email to N56ML "at" hiwaay.net
> --
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html 

KR> Transceiver Electrical

[pedro]

Mark,

I don't know too much about transponders, but I guess the little red 
light comes off the back of the receiver amplifier, and that it just 
responds to RF and does not care too much about the frequency.

Co-ax cable is very, very good at shielding signal, nothing gets out of 
those suckers, running the cables close together should not be a 
problem. So I think it is possibly back to your grounding.

Your antentas presumably have ground plains. The antenna shield should 
be connected to the ground plain, but this ground plain must NOT be 
connected to the aircraft ground, and it must NOT be connected to your 
transponder antenna ground plain. If it is, then you have effectively 
created a single turn transformer, signal on the radio cable inner will 
induce a signal in the circular path made up of the two outer shields. 
Quite a heavy current will flow around that loop, and that will induce a 
signal in the transponder cable inner wire. As these two cables are very 
well matched, a very large part of your radio signal will end up driving 
into your transponder.

I am not certain, but my guess is that inside the radio, the coax outer  
does not connected to the low voltage ground, or that would cause a 
similar problem on metal aircraft.

Mark Jones wrote:

>Yesterday, I checked all wiring to the transponder and transceiver. All hook 
>ups are correct. I then disconnected the transceiver antenna at the radio 
>and the symptom went away. Hooked it back up and when I transmitted it lit 
>up the ident transmit button. Both the antenna coax cables are run together 
>down the fuselage side to behind the seat where they split up again. I think 
>I may need to run one antenna down one side of the fuselage and the other 
>down the opposite side. The way they are, I feel the transponder coax is 
>picking up the transmit signal of the radio tricking it into lighting up the 
>ident button. .
>
>
>  
>

KR> Transceiver Electrical

[Louis Staalberg]

Mark wrote:

>... I then disconnected the transceiver antenna at the radio
> and the symptom went away. 

Something else could be the trouble and I have not seen that
possibility mentioned by others with their excellent replies.

The coaxial cable that goes from your transceiver to the radio
antenne has a characteristic impedance of 50 Ohm.

The antenna must, at the point where it connects to the coaxial  cable,
also present a 50 Ohm impedance.
 If not, a portion of the RF energy going to the antenna gets reflected 
back
 and couses standing wawes on the shield of the cable which then in turn
radiates RF energy.

If you could find an Amateur Radio operator who has an impedance bridge,
he could check that out very easily.
Also, if he happens to have a Grid Dip meter he can check if the 
transponder
is actually transmitting when the light comes on.

Good luck finding a Ham so equipped!

Louis 

KR> Transceiver Electrical

[Mark Jones]

My panel mount transceiver and transponder with encoder all work great with 
very strong signals reception etc.. However, when I key my mike via a control 
stick mounted PTT button, I notice that the ident light on my transponder will 
glow brightly while transmitting. ATC has never said anything about me identing 
on the scope when I transmit so I do not think that is happening. So would 
anyone have any insight why I light up my ident button when I transmit? Thanks

Mark Jones
Mueller Sales Corp.
3725 N. 126th Street
Brookfield, WI  53005

PH: 262-781-5310
   800-242-2219
Fax: 262-781-4130

Mailto:mjo...@muellersales.com
Web: http://www.muellersales.com

KR> Transceiver Electrical

[Joseph H. Horton]

You have probably thought of this but since the push to talk button is
nothing more than closing a ground in the circuit I would start by
checking to see where it might becoming a common ground through  the
wiring harness. You might ask the controller next time to make sure it is
not identing also. I guess it is possible but I don't see it in my head/
Joe 
On Thu, 17 Aug 2006 14:52:38 -0500 "Mark Jones" 
writes:
> My panel mount transceiver and transponder with encoder all work 
> great with very strong signals reception etc.. However, when I key 
> my mike via a control stick mounted PTT button, I notice that the 
> ident light on my transponder will glow brightly while transmitting. 
> ATC has never said anything about me identing on the scope when I 
> transmit so I do not think that is happening. So would anyone have 
> any insight why I light up my ident button when I transmit? Thanks
> 
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
> 
> PH: 262-781-5310
>800-242-2219
> Fax: 262-781-4130
> 
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
> 
> 
> 
> ___
> Search the KRnet Archives at 
> http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Joe Horton, Coopersburg, PA.
joe.kr2s.buil...@juno.com

KR> Transceiver Electrical

[VIRGIL N SALISBURY]

Shield those wires. Check for ground loop, Virg

On Thu, 17 Aug 2006 14:52:38 -0500 "Mark Jones" 
writes:
> My panel mount transceiver and transponder with encoder all work 
> great with very strong signals reception etc.. However, when I key 
> my mike via a control stick mounted PTT button, I notice that the 
> ident light on my transponder will glow brightly while transmitting. 
> ATC has never said anything about me identing on the scope when I 
> transmit so I do not think that is happening. So would anyone have 
> any insight why I light up my ident button when I transmit? Thanks
> 
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
> 
> PH: 262-781-5310
>800-242-2219
> Fax: 262-781-4130
> 
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
> 
> 
> 
> ___
> Search the KRnet Archives at 
> http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl

KR> Transceiver Electrical

[Martindale Family]

How close is your VHF antenna to the transponder antenna? A harmonic freq 
might be fooling your transponder into thinking it is being swept by a radar 
beamjust guessing here.

John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA

phone:  61 2 66584767 (H)
 61 2 66869094 (W)
mobile:  0417 584767
email:johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm

- Original Message - 
From: "Mark Jones" <mjo...@muellersales.com>
To: "KR Net (E-mail)" <kr...@mylist.net>
Sent: Friday, August 18, 2006 5:52 AM
Subject: KR> Transceiver Electrical


> My panel mount transceiver and transponder with encoder all work great 
> with very strong signals reception etc.. However, when I key my mike via a 
> control stick mounted PTT button, I notice that the ident light on my 
> transponder will glow brightly while transmitting. ATC has never said 
> anything about me identing on the scope when I transmit so I do not think 
> that is happening. So would anyone have any insight why I light up my 
> ident button when I transmit? Thanks
>
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
>
> PH: 262-781-5310
>   800-242-2219
> Fax: 262-781-4130
>
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html 

KR> Transceiver Electrical

[Mark Jones]

The VHF is in the vertical fin and the transponder antenna is right
behind the seat. Several feet separate them. However, the   coax cables
parallel each other.

Mark Jones (N886MJ)
Wales, WI
My Web site: http://www.flykr2s.com/
Mailto:flyk...@wi.rr.com


-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Martindale Family
Sent: Friday, August 18, 2006 12:54 AM
To: KRnet
Subject: Re: KR> Transceiver Electrical


How close is your VHF antenna to the transponder antenna? A harmonic
freq 
might be fooling your transponder into thinking it is being swept by a
radar 
beamjust guessing here.

John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA

phone:  61 2 66584767 (H)
 61 2 66869094 (W)
mobile:  0417 584767
email:johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm

- Original Message - 
From: "Mark Jones" <mjo...@muellersales.com>
To: "KR Net (E-mail)" <kr...@mylist.net>
Sent: Friday, August 18, 2006 5:52 AM
Subject: KR> Transceiver Electrical


> My panel mount transceiver and transponder with encoder all work great

> with very strong signals reception etc.. However, when I key my mike
via a 
> control stick mounted PTT button, I notice that the ident light on my 
> transponder will glow brightly while transmitting. ATC has never said 
> anything about me identing on the scope when I transmit so I do not
think 
> that is happening. So would anyone have any insight why I light up my 
> ident button when I transmit? Thanks
>
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
>
> PH: 262-781-5310
>   800-242-2219
> Fax: 262-781-4130
>
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html 


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please see other KRnet info at http://www.krnet.org/info.html

KR> Transceiver Electrical

[Al Hawkins]

Hi Mark

What type of coaxial cable did you use?
Transponders usually require double sheilded coax to prevent spurious
signals.
I also had a problem in my plane when I used a steel bolt to pass the =
ground
through the firewall, I replaced it with a brass one which solved the
problem.

Al Hawkins
KR2 C-GDPU
Port Coquitlam, B.C.
Canada
=20
http://www3.telus.net/public/a4a19967/index.html



-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On =
Behalf
Of Mark Jones
Sent: August 18, 2006 6:13 AM
To: KRnet
Subject: RE: KR> Transceiver Electrical


The VHF is in the vertical fin and the transponder antenna is right
behind the seat. Several feet separate them. However, the   coax cables
parallel each other.

Mark Jones (N886MJ)
Wales, WI
My Web site: http://www.flykr2s.com/
Mailto:flyk...@wi.rr.com


-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Martindale Family
Sent: Friday, August 18, 2006 12:54 AM
To: KRnet
Subject: Re: KR> Transceiver Electrical


How close is your VHF antenna to the transponder antenna? A harmonic =
freq=20
might be fooling your transponder into thinking it is being swept by a =
radar

beamjust guessing here.

John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA

phone:  61 2 66584767 (H)
 61 2 66869094 (W)
mobile:  0417 584767
email:johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm

- Original Message -=20
From: "Mark Jones" <mjo...@muellersales.com>
To: "KR Net (E-mail)" <kr...@mylist.net>
Sent: Friday, August 18, 2006 5:52 AM
Subject: KR> Transceiver Electrical


> My panel mount transceiver and transponder with encoder all work great

> with very strong signals reception etc.. However, when I key my mike
via a=20
> control stick mounted PTT button, I notice that the ident light on my
> transponder will glow brightly while transmitting. ATC has never said=20
> anything about me identing on the scope when I transmit so I do not
think=20
> that is happening. So would anyone have any insight why I light up my
> ident button when I transmit? Thanks
>
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
>
> PH: 262-781-5310
>   800-242-2219
> Fax: 262-781-4130
>
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net=20
> please see other KRnet info at http://www.krnet.org/info.html


___
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to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net =
please
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--=20
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.405 / Virus Database: 268.11.2/422 - Release Date: 06-08-17
=20

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No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.405 / Virus Database: 268.11.2/422 - Release Date: 06-08-17
=20

KR> Transceiver Electrical

[Mark Jones]

The transponder has a new factory made coax. I do not know if it is =
double shielded or not. I am using a common ground terminal inside the =
cockpit for both the transponder and transceiver.
=20
Mark Jones (N886MJ)
Wales, WI
My Web site: http://www.flykr2s.com/
Mailto:flyk...@wi.rr.com


-Original Message-
From: krnet-bounces+flykr2s=3dwi.rr@mylist.net =
[mailto:krnet-bounces+flykr2s=3dwi.rr@mylist.net]On Behalf Of Al =
Hawkins
Sent: Friday, August 18, 2006 9:16 AM
To: 'KRnet'
Subject: RE: KR> Transceiver Electrical


Hi Mark

What type of coaxial cable did you use?
Transponders usually require double sheilded coax to prevent spurious
signals.
I also had a problem in my plane when I used a steel bolt to pass the =
ground
through the firewall, I replaced it with a brass one which solved the
problem.

Al Hawkins
KR2 C-GDPU
Port Coquitlam, B.C.
Canada
=20
http://www3.telus.net/public/a4a19967/index.html



-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On =
Behalf
Of Mark Jones
Sent: August 18, 2006 6:13 AM
To: KRnet
Subject: RE: KR> Transceiver Electrical


The VHF is in the vertical fin and the transponder antenna is right
behind the seat. Several feet separate them. However, the   coax cables
parallel each other.

Mark Jones (N886MJ)
Wales, WI
My Web site: http://www.flykr2s.com/
Mailto:flyk...@wi.rr.com


-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Martindale Family
Sent: Friday, August 18, 2006 12:54 AM
To: KRnet
Subject: Re: KR> Transceiver Electrical


How close is your VHF antenna to the transponder antenna? A harmonic =
freq=20
might be fooling your transponder into thinking it is being swept by a =
radar

beamjust guessing here.

John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA

phone:  61 2 66584767 (H)
 61 2 66869094 (W)
mobile:  0417 584767
email:johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm

- Original Message -=20
From: "Mark Jones" <mjo...@muellersales.com>
To: "KR Net (E-mail)" <kr...@mylist.net>
Sent: Friday, August 18, 2006 5:52 AM
Subject: KR> Transceiver Electrical


> My panel mount transceiver and transponder with encoder all work great

> with very strong signals reception etc.. However, when I key my mike
via a=20
> control stick mounted PTT button, I notice that the ident light on my
> transponder will glow brightly while transmitting. ATC has never said=20
> anything about me identing on the scope when I transmit so I do not
think=20
> that is happening. So would anyone have any insight why I light up my
> ident button when I transmit? Thanks
>
> Mark Jones
> Mueller Sales Corp.
> 3725 N. 126th Street
> Brookfield, WI  53005
>
> PH: 262-781-5310
>   800-242-2219
> Fax: 262-781-4130
>
> Mailto:mjo...@muellersales.com
> Web: http://www.muellersales.com
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net=20
> please see other KRnet info at http://www.krnet.org/info.html


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to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net =
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--=20
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.405 / Virus Database: 268.11.2/422 - Release Date: 06-08-17
=20

--=20
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.405 / Virus Database: 268.11.2/422 - Release Date: 06-08-17
=20

KR> Transceiver Electrical

[Mark Jones]

I have been studying the pin outs and checking everything on my plane for 
proper wiring and grounding to try and get it done properly. On the transponder 
pin diagram there is a note that reads "transmission may me suppressed by 
either grounding pin one or applying a positive voltage to pin 15". Can someone 
explain what that means? I have not made either connection. Do I need to?

Mark Jones (N886MJ)
Wales, WI 
Visit my web site: www.flykr2s.com
E-mail: flyk...@wi.rr.com

KR> Transceiver Electrical

[Brian Kraut]

Typically you supress transmission on a transmitter for a short time when
something else needs to receive and a transmission will cause interferrence.
You will not need this in your application.

Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Mark Jones
Sent: Friday, August 18, 2006 9:30 PM
To: KRnet
Subject: KR> Transceiver Electrical


I have been studying the pin outs and checking everything on my plane for
proper wiring and grounding to try and get it done properly. On the
transponder pin diagram there is a note that reads "transmission may me
suppressed by either grounding pin one or applying a positive voltage to pin
15". Can someone explain what that means? I have not made either connection.
Do I need to?

Mark Jones (N886MJ)
Wales, WI
Visit my web site: www.flykr2s.com
E-mail: flyk...@wi.rr.com
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KR> Transceiver Electrical

[VIRGIL N SALISBURY]

Try it, you might like it, Virg

On Fri, 18 Aug 2006 20:29:34 -0500 "Mark Jones" 
writes:
> I have been studying the pin outs and checking everything on my plane 
> for proper wiring and grounding to try and get it done properly. On 
> the transponder pin diagram there is a note that reads "transmission 
> may me suppressed by either grounding pin one or applying a positive 
> voltage to pin 15". Can someone explain what that means? I have not 
> made either connection. Do I need to?
> 
> Mark Jones (N886MJ)
> Wales, WI 
> Visit my web site: www.flykr2s.com
> E-mail: flyk...@wi.rr.com
> ___
> Search the KRnet Archives at 
> http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl