You don't mention how you are interfacing the COM port to your
rig. You do need to convert the +/- 12 Volt TTL levels from the
COM port to whatever levels are required by your rig for PTT. Most
just require a simple circuit closure such as a saturated
transistor switch or a relay. I have used the simple 1 transistor
circuit that appears in multiple places (I believe it is shown on
the WM2U site under PSK31 hookups) with my Omni 6+ and now use a
RIGblaster. Both work well, but the RIGblaster is nicely packaged
and makes a nice neat installation. AS for the LPT port hookup, I
tried that briefly and couldn't get it to work, but since I had a
spare serial port I didn't spend much time trying to figure out
why.
---
73, Rich - W3ZJ
> -----Original Message-----
> From: owner-writelog@contesting.com
> [mailto:owner-writelog@contesting.com]On Behalf Of Terry Dunlap
> Sent: Tuesday, October 10, 2000 8:57 PM
> To: writelog@contesting.com
> Subject: [WriteLog] PTT
>
>
>
> I'd like some feedback on PTT options. I have PTT
> Control set to
> "Command Rig on COM port.
>
> Has anyone experienced any problems with this method?
>
> Would I be better off with PTT hardwired on a COM port
> or LPT port?
>
> 73 de Terry KK6T
>
>
> --
> WWW: http://www.writelog.com/
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> Administrative requests: writelog-REQUEST@contesting.com
> Problems: owner-writelog@contesting.com
>
>
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