Jim,
> If YOU want to use PTT to control your switching please do. But do not
> insist that the other 99% of operators who don't use it. For them, VOX
> works just fine.
VOX is a PITA in a great many environments - for a variety of reasons.
It just plain won't work in a multi-multi with other operators all
around. It won't work with loud amplifiers, with loud fans, A/C, etc.
PTT is far more convenient and reliable with computer generated DVK,
etc. It's not safe/reliable with children and/or pets in the house.
VOX may be fine for rag chewing in a quiet environment but give me PTT
from the computer and/or a big foot switch for reliability.
73,
... Joe, W4TV
On 7/30/2012 1:53 AM, Jim Brown wrote:
> On 7/29/2012 12:20 PM, Igor Sokolov wrote:
>
>> I had to build small circuit that makes use of inhibit signal in my
>> K3 to extend rigid 8 ms built into K3 although it would be more
>> logical to have programmable TX delay built into the transceiver.
>
> Hi Igor,
>
> First, I suspect we may have a language problem. The 8msec delay is only
> a STARTING point, and is ADJUSTABLE from a menu. You can set it to be
> much longer.
>
> Second, in MOST SO2R applications,, relays controlling bandpass filters,
> selecting antennas, selecting amps, are switched when the operator
> CHANGES BANDS, not when he goes from TX to RX. Certainly special
> lockout circuits of the sort you're talking about CAN require a bit more
> delay and will require PTT. But I would bet a case of your favorite
> beverage (the drink, not the antenna) that for every station doing
> things like that there are at least 100 who are simply turning on and
> off the TX that either runs barefoot of feeds a power amp that feeds
> antennas that are switched when the operator changes bands.
>
> If YOU want to use PTT to control your switching please do. But do not
> insist that the other 99% of operators who don't use it. For them, VOX
> works just fine.
>
> 73, Jim K9YC
>
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