[WriteLog] Re: Cw Writelog

[Victor Carnuccio]

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 at StarLinX.com>
>Reply-To: "Steve Baron - KB3MM" <SteveBaron at StarLinX.com>
>To: "Victor Carnuccio" <vcarnuccio at hotmail.com>
>Subject: Re: [WriteLog] Re: Cw Writelog
>Date: Mon, 9 Aug 2004 14:38:31 -0000
>
>
>----- Original Message -----
>From: "Victor Carnuccio" <vcarnuccio at hotmail.com>
>To: <SteveBaron at StarLinX.com>
>Cc: <writelog at 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 at StarLinX.com>
> >Reply-To: "Steve Baron - KB3MM" <SteveBaron at StarLinX.com>
> >To: "Victor Carnuccio" <vcarnuccio at hotmail.com>
> >Subject: Re: [WriteLog] Re: Cw Writelog
> >Date: Mon, 9 Aug 2004 11:23:26 -0000
> >
> >
> >----- Original Message -----
> >From: "Victor Carnuccio" <vcarnuccio at hotmail.com>
> >To: <k4sb at bellsouth.net>
> >Cc: <writelog at 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 at bellsouth.net>
> > >To: Victor Carnuccio <vcarnuccio at 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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