Don;
Do you know what kind of output your keyer has? Relay? Open Collector?
You may need a small buffer relay bewteen the two pieces of equipment.
Good luck.
Dave
WA0ZZG
On Fri, 25 Oct 2002, CARLSON wrote:
>
>
> -------- Original Message --------
> Subject: FT-901D with External Electronic Keyer
To: <yaesu@contesting.com>
> Date: Fri, 25 Oct 2002 07:49:31 -0400
> From: CARLSON <carlson@hargray.com>
> To: yeasu@contesting.com
>
>
>
> Fellow Hams,
> I sent this message yesterday but apparently it did not make it. Forgive
> me if this is dupe. I am new to this reflector but have been on the
> Collins for many years and know there is a wealth of experience and
> information available on the reflectors.
> I recently acquired a FT-901D, no built in keyer, from a ham just too
> old to operate any longer. Cosmetics are good and the only function that
> does not operate is the Reject/Width but that's for another day. Here
> is my present problem as I work CW almost exclusively have had an MFJ
> Electronic Keyer for over twenty years. I have used it on Collins,
> Drake, Kenwood and an FT-102 with no problems are need for modification.
> The output from the keyer is phono plugs.. That leaves only two Keyer
> circuit wires available to the three position plug into the FT-901D. I
> have tried every wiring configuration possible using the two wires from
> the Keyer to the Transceiver three conductor plug. When turing the
> transceiver keyer switch to MAN, I get either a constant key down or
> nothing depending on the wiring configuration. A straight hand key works
> fine.
> I am out of options and help will be greatly appreciated. Thanks.
> 73, Don Carlson, K4KI
>
>
>
>
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