[ICOM] Amp Keying Question Again

[Jim Miller]

Wow, I guess being retired has it's advantages, even though I feel I am as
busy as ever.  I have the time to "wait" the 1 millisecond for the relay.
Even if I didn't have time and started talking anyway, my bet is that taking
any 1/1000 second out of any part of any conversation would take some fine
test equipment to detect and would not be detectable by the human ear.

Waiting for the delay (on my end) in a QSO that lasted an hour between two
people making 15 second transmissions each would amount to an accumulated
delay of less than 1/8 of a second total for the entire QSO.  Time just
isn't that important to me any more.

73, Jim

----- Original Message ----- 
From: "Adam Farson" <farson at shaw.ca>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Monday, June 20, 2005 12:56 PM
Subject: RE: [ICOM] Amp Keying Question Again


> Hi Joe,
>
> The amplifier keying relay in an Icom transceiver cannot be disabled, but
> you may be able to connect ACC(2) Pin 3 (SEND) to the AmpKeyer input. The
> SEND line is bi-directional; it goes low on transmit, and grounding it
> externally keys the transceiver. The relay will still operate, but keying
> from the SEND line eliminates the relay's 1 mS latency.
>
> Cheers for now, 73,
> Adam VA7OJ/AB4OJ
>
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
On
> Behalf Of jduerbusch at charter.net
> Sent: 20 June 2005 10:19
> To: icom at mailman.qth.net; ic756pro3 at yahoogroups.com
> Subject: [ICOM] Amp Keying Question Again
>
> I got a IC-756PRO3 at Dayton and little by little I am getting all hooked
up
> to the station.
> Yesterday my daughters gave me a 'AmpKeyer' device for FatherDay. (I
wonder
> how they knew?).
> This box will go between the PRO3 and my Drake L-7.
> Here is my questions:
> 1.  There are two places to hookup the connection on the PRO3, either the
> RCA Jack or the ACC 1 connector.  Is one better than the other?  Can I
take
> the 12 volts off the ACC 1 to run the interface?
>
> 2.  Since I am keying the Amp with a solid state device in side the
> AmpKeyer, is there anyway to bypass the relay in the PRO3?  On my TS-850S,
I
> was able to turn off the internal relay and use the +12 volts on xmit to
> drive a transistor circuit.  BTW the voltage on the Drake is 24 Volts.
>
> Other than that, the PRO3 seems to be working FB for me.  I really like
the
> digital display for the S-meter with the mini-scope above.
>
> Joe K0BX
> STL MO
>
>
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