RE: [WriteLog] SO2R A/B ASSERTIONAha - Thanks Tom. For as many times as =
I've gone through the INI file info, that's one I wasn't aware of. =
Fantastic! Many interesting responses to this!
73 de Larry K7SV
----- Original Message -----=20
From: Georgens, Tom=20
To: 'Larry Schimelpfenig'=20
Sent: Friday, September 20, 2002 11:31 AM
Subject: RE: [WriteLog] SO2R A/B ASSERTION
Larry -=20
The polarity of the A/B bit is settable in the writelog.ini file. The =
keyword is LPTABSENSE and it can be set to one or zero. It will allow =
you to set whether radio A is bit 14 high or bit 14 low. Similarly, =
there is a LptPTTSense for the PTT bit.
Have fun=20
73, Tom W2SC 8P5A=20
-----Original Message-----=20
From: Larry Schimelpfenig [mailto:k7sv@va.prestige.net]=20
Sent: Friday, September 20, 2002 7:32 AM=20
To: writelog@contesting.com=20
Cc: bob@cytanet.com.cy=20
Subject: [WriteLog] SO2R A/B ASSERTION=20
Hi Bob, delighted to hear from you. What I was really wondering was if =
there=20
were somewhere in the software that allowed the linkage between pin 14 =
state=20
and left or right to be reversed. My guess is there is not.=20
Having said that, the next solution is to use a transistor buffer to =
reverse=20
the state just as you suggested. For something that's my own little=20
idiosyncrasy I'll certainly take that approach rather than suggesting =
yet=20
another s/w change!=20
Thanks & 73 de Larry K7SV=20
I may be missing something in what you are wanting to do here! The =
way I=20
see it, you just need to invert pin 14 state using a transistor buffer =
so=20
that when pin 14 is true your relay is not energised.=20
73=20
Bob 5B4AGN, P3F, ZC4ZM=20
----- Original Message -----=20
From: "Larry Schimelpfenig" <k7sv@va.prestige.net>=20
To: <writelog@contesting.com>=20
Sent: Friday, September 20, 2002 1:49 PM=20
Subject: [WriteLog] SO2R A/B ASSERTION=20
> If this appears to be a bit anal, so be it, but I want to make sure =
my=20
> conclusion is correct, so I turn to this body of expertise!=20
snip snip=20
> Here's the rub. I would like the radio on the left to be keyed =
through the=20
> normally closed relay contacts. There are two reasons for that. =
First, if=20
I=20
> have some sort of failure, so the a/b function stops working, I'd =
like to=20
> have the predominent radio available. Second, it just seems to make =
sense=20
> that the more active radio would be used with the relay in the =
normally=20
> closed state.=20
>=20
> >From what I can tell, the software is set up so that the right =
radio icon=20
is=20
> tied to parallel port pin 14 in the non-asserted state (relay is =
normally=20
> closed). Which means that when the left radio is selected, the left =
radio=20
> icon illuminates, and pin 14 is asserted.=20
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