Yes the voltage on the transistor collector goes to zero when a dot
or dash is being sent.
It must be the keying circuit on my FT-One that doesn't like the voltage
constant that keeps it keyed until a charactor is sent.
Victor KD2HE
From: "Steve Baron - KB3MM" <SteveBaron@StarLinX.com>
Reply-To: "Steve Baron - KB3MM" <SteveBaron@StarLinX.com>
To: "Victor Carnuccio" <vcarnuccio@hotmail.com>
Subject: Re: [WriteLog] Re: Cw Writelog
Date: Mon, 9 Aug 2004 14:38:31 -0000
----- Original Message -----
From: "Victor Carnuccio" <vcarnuccio@hotmail.com>
To: <SteveBaron@StarLinX.com>
Cc: <writelog@contesting.com>
Sent: Monday, August 09, 2004 14:28
Subject: Re: [WriteLog] Re: Cw Writelog
Its the same circuit I used for the LPT output form ct.
OK. Guess that means the one published in the CT manual.
A PNP transistor.
There's 9v across the ground and pin 4 continuous that keys the circuit on
PIN 4 ! ? Of the connector ?
my FT-ONE. When it keys the CW charactors switch the voltage off.
The voltage on the transistor collector should go to zero when a dot
or dash is being sent.
Each
I tried
using the computer ground as well. That didn't do anything. It may be
somthing about the motherboard I am using. It's and Asus.
ASUS is fine.
Anyway I have a
few moer days before WAE to resolve this.
Victor KD2HE
73... thanks for the help
>From: "Steve Baron - KB3MM" <SteveBaron@StarLinX.com>
>Reply-To: "Steve Baron - KB3MM" <SteveBaron@StarLinX.com>
>To: "Victor Carnuccio" <vcarnuccio@hotmail.com>
>Subject: Re: [WriteLog] Re: Cw Writelog
>Date: Mon, 9 Aug 2004 11:23:26 -0000
>
>
>----- Original Message -----
>From: "Victor Carnuccio" <vcarnuccio@hotmail.com>
>To: <k4sb@bellsouth.net>
>Cc: <writelog@contesting.com>
>Sent: Monday, August 09, 2004 09:47
>Subject: Re: [WriteLog] Re: Cw Writelog
>
>
>Hi FL,
>
>The rig is continuosly keyed. Then when there is a charactor keyed it
cuts
>out the keying. In other words the spacing is keyed.
>
>Why don't you post exactly what this interface is.
>
> I tried reversing the
>emittor and collector on the NPN transistor but haven't tried reversing
the
>emittor base connections.
>
>You sgouldn't have to experiment like that . Make sure you know the
>transistor
>pin out.
>
>
> I use on old Yaesu tranceiver that works fine
>
>How old is old ? Solid state ? No tube type keying?
>
>with the LTP an CT CW. I guess i might try a larger value on the
resistor.
>Now it's a 1K as shown in the curcuit.
>
>Tnx,
>
>Victor KD2HE
>
>
>
>
> >From: K4SB <k4sb@bellsouth.net>
> >To: Victor Carnuccio <vcarnuccio@hotmail.com>
> >Subject: Re: [WriteLog] Re: Cw Writelog
> >Date: Mon, 09 Aug 2004 03:50:29 +0000
> >
> >Hi Vic
> >
> >I just went through that torture.
> >
> >In SETUP, PORTS, select the comm port you wish to use. BE SURE that
> >POLL is checked.
> >Initially, you might change your rig settings to "NO RIG"
> >
> >Now, in rest of area, click on PC GENERATES. Also under KEYER TYPE,
> >select NONE
> >
> >In ADVANCED click on the middle option ( forget what it is )
> >
> >And that should do it for you.
> >
> >I find it very interesting that you say the thing is keying "upside
> >down". About the ONLY way for that to happen is if you have negative
> >keying on your rig. But, just for grins, if you reverse the
> >Emmiter-Base connections, it will fix it.
> >
> >BE SURE YOU USE A NPN TRANSISTOR!!! ( and please don't ask why I said
> >that )
> >
> >Be SURE that your ground on the Emmiter of the NPN is connected to the
> >rig. If you have a ground wire in the cable, connect it to Pin 5 also.
> >DTR is pin 4 and goes to the base of the keying circuit.
> >
> >I build my interfaces on a 5 connector phenolic stand-off ( Radio
> >Shack ) and I ALWAYS use about 3300 to 4700 ohms for the resister. DTR
> >goes to stand-off #1, then the resister, Pin 5 goes to the center
> >along with the ground wire and the Emmiter. Collector goes to the hot
> >wire to the rig, and the ground wire ( I use audio cable ) to the
> >center of the stand-off.
> >
> >IF you find an old Rx pill bottle. it makes a very nice enclosure.
> >BUT, BE SURE you drill a hole in the bottom of the bottle for the PC
> >cable, and a smaller one in the top of the pill bottle for the rig
> >cable. Needless to say, insert BOTH cables before you do any wiring. (
> >another case of please don't ask )
> >
> >When finished, just draw the PC end so the whole circuit goes into the
> >bottle, and then the same thing with the rig cable.
> >
> >GL
> >
> >73
> >Ed
>
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