Kenwood TH-D7 Duplex Node?

Hi All:

Wonder if anyone is using a Kenwood TH-D7A (or may be an 'E') for a duplex node?

The 'D7 could make for a good node, since it has the ability to operate in full duplex (RX on Band 'A' and TX on Band 'B'). I'd like to know if there is a way to bypass the internal TNC, or to bring out 9600 baud audio (or raw discrim audio) out somehow.

I was initially using a pair of Baofeng's for a portable / full-duplex node... but the Baofeng's are as deaf as a potato!

Cheers!

Ramesh, VA3UV

#27919 and a truck load of others....

Unless you want to perform surgery on the radio, there is not an "easy"
way to bring "raw" audio out from the radio.

A possibility is just use the connections from the speaker mic ports. I
suggest using the BAL button to turn the volume off on the band you are
going to be transmitting on.

~Benjamin, KB9LFZ

···

On Fri, 2017-07-21 at 22:11 -0400, Ramesh Dhami wrote:

Hi All:

Wonder if anyone is using a Kenwood TH-D7A (or may be an 'E') for a
duplex node?

The 'D7 could make for a good node, since it has the ability to operate
in full duplex (RX on Band 'A' and TX on Band 'B'). I'd like to know if
there is a way to bypass the internal TNC, or to bring out 9600 baud
audio (or raw discrim audio) out somehow.

I was initially using a pair of Baofeng's for a portable / full-duplex
node... but the Baofeng's are as deaf as a potato!

Cheers!

Ramesh, VA3UV

#27919 and a truck load of others....

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That's definitely an option Benjamin.... but how do I get COS signal?

I'm not opposed to performing micro surgery, just wondering if anyone has been there and got the T Shirt!

Having said that, I forgot to mention that the issue with the Baofengs seems to be largely with the stock antenna (or should I say the attenuator disguised as an antenna).

Testing with a signal generator seemed to indicate a 10dB loss in sensitivity when using the "antenna".

I've also since switched to duplex=0 (with linktolink = 1) to help eliminate further loss in RX sensitivity due to desense).

Cheers,

Ramesh.

···

Sent from my iPhone

On Jul 23, 2017, at 3:07 PM, Benjamin Naber <Benjamin@Project23D.com> wrote:

Unless you want to perform surgery on the radio, there is not an "easy"
way to bring "raw" audio out from the radio.

A possibility is just use the connections from the speaker mic ports. I
suggest using the BAL button to turn the volume off on the band you are
going to be transmitting on.

~Benjamin, KB9LFZ

On Fri, 2017-07-21 at 22:11 -0400, Ramesh Dhami wrote:
Hi All:

Wonder if anyone is using a Kenwood TH-D7A (or may be an 'E') for a
duplex node?

The 'D7 could make for a good node, since it has the ability to operate
in full duplex (RX on Band 'A' and TX on Band 'B'). I'd like to know if
there is a way to bypass the internal TNC, or to bring out 9600 baud
audio (or raw discrim audio) out somehow.

I was initially using a pair of Baofeng's for a portable / full-duplex
node... but the Baofeng's are as deaf as a potato!

Cheers!

Ramesh, VA3UV

#27919 and a truck load of others....

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http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

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good evening a question
how do i solve the problem cos?
how should i do?
thank you

Your question can not be answered without knowing the radio make and model.

I would either start a new thread titled need COS location for radio-xxx
or visit repeaterbuilders.com for info

hi thanks for your attention, the model is the Kenwood th-d7e.
Unfortunately, the proposed site no longer exists. Do you have anything else? thank you