[TenTec] Omni 6 band data on RS-232

[Gert Meinen]

Doug,

On the BPF/Front End Board of the Omni 6 (81593) you can take the signal for 
each band near connector 85.
I 've routed this to a small home made board with 13 diodes in a matrix to 
produce bcd-code for each band.
The four wires with the bcd-code coming off this small board are routed to 
the db-25 connector on the TX Audio Board (81597)
where they are connected to four unused pins.
I use the bcd-coded band signals for automatic bandfilter-, and antenna 
switching.
Works fine here for years now, I can draw up a schematic an e-mail it to you 
if you like.

73 Gert , PA3AAV


----- Original Message ----- 
From: "John Huffman" <hjohnc at gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Friday, October 26, 2007 10:29 PM
Subject: Re: [TenTec] Omni 6 band data on RS-232


> Doug -
>
> There are RS232 commands that return the frequency of VFO A and VFO B.
> Usually these are interpreted by software which translates the hex
> numbers into something readable.  The same type of information is
> available on the Icom compatible port.  That way you can use the RS232
> for computer logging and the Icom port to control your switch.
>
> The commands are in the back of the manual.
>
> You will need to program a chip to send the query command, to receive
> the hex data, to translate the hex data from frequency to band, and to
> throw the band switch.  A daunting task.
>
> Some computer logging/rig control programs will do most of the heavy
> lifting if you can tolerate having the bandswitch work only when the
> logging program is working.
>
> Hope that helps.
>
> 73 de K1ESE
> John
>
> Doug wrote:
>> I'm building a remote antenna switch (2006 Handbook, pg 19-37). I'd
>> like to pull band data from the RS-232 port for auto band
>> switching.  The Omni 6 presents band data on pins 10 (160m), 15 (10/12m), 
>> 17
>> (15/17m), 21 (20m), 24 (40/30m) as +10v on each of these pins on a
>> DB-25. It was done this way originally for auto band switching with
>> I believe the Hercules amplifier.
>>
>> The problem as you can see is the multiple bands on some of the pins,
>> which makes it really hard to automate the antenna selection process
>> when using separate antennas for each band
>> .
>> So here's the question, is there another way to get this info out of
>> either RS-232 or the separate serial port connector that I can
>> decode in the context of the antenna switch in the handbook.
>> I think there is a way as no logging software I've run across has a
>> problem decoding band, I'm just not enough of a tech to be able to
>> figure it out.
>>
>>
>>
>> 73, Doug W5GA
>>
>>
>>
>>
>> 73, Doug W5GA
>>
>>
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