It's really simpler than that. The only parts required are 2 DB9 connectors
and a foor of 4 conductor shielded wire.
The audio out and audio in on the DB9 are matched in both impedance and level.
The COS out and PTT in both go low.
But...
You MUST remove the mic from the transmitter as the mic is "live" unless you
run the radio in the data mode.
I have a DB9 to DB9 in my kit to permit "ad hoc" crossband repeating between
any of 2/220/240 in the radio stack. No ID, no real hang but, in a pinch it
works.
I added a small box with 2 mini-switches in the cos-ptt lines and a couple of
small value (don't remember) cap to provide just a touch (< 1 sec) of hang.
Bill - WB1GOT
On 19 Feb 2006 22:53:03 -0000, you wrote:
>Message: 5
> Date: Sun, 19 Feb 2006 11:41:08 -0500
> From: <[EMAIL PROTECTED]>
>Subject: RE: Alinco Ham Repeater??????
>
>Should be simple. RX audio out, TX Audio In, Ground and COS voltage.
>
>Both 1200 and 9600 BPS data out, so I believe you would have a choice of
>conditioned or unconditioned audio.
>
>Two transistor switches and some audio level matching and you are
>cross-linked.
>
>The same cable could go between any DR-x35 rigs.
>
>Same situation for data out connectors (mini DIN) on Yaesu and Kenwood.
>
>I have taken part in and witnessed in-band repeater using 2 Yaesu
>FT-1500 and split antennas at the same site.
>
>A 20.00 fox-hunt IDer kit will add the minimal daily requirements for
>ID, Courtesy tone, etc...
>
>Needless to say, this is not a 100% duty cycle device, but low power
>operation will allow it to go a long way.
>
>One-way Cross-banding or linked sites running a one-way repeat setup
>greatly reduce heat build-up and high duty-cycle.
>
>In addition to building repeaters, isn't this the experimental
>communication back-up systems that is a vital part of our involvement in
>Ham radio?
>
>I have had a lot of fun and it has been a real learning experience -
>Trying to exhast all the possible cross-band and linked system operation
>avaialble with off-the-shelf radios.
>
>David
>KD4NUE
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