K2/100 QSK problem

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K2/100 QSK problem

k2zf50
Upon initial power up OR after the K2 has been idle for a short period of time I have discovered that the first character keyed gets truncated. If I was to send my call sign - K2ZF - the K would be transmitted as  A. Letter K  dah dit dah  -  the first dah would NOT get transmitted and the receiving station would answer  A2ZF. Its no problem if I was to call CQ and repeat my call sign a few times, but if I'm chasing DX and I send my call only once the DX would reply  A2ZF.
Every other letter gets transmitted properly afterward, its just the first character after the K2 has been idle. Should I be looking for a sticky relay and if so which one?
Thanks,  Jim  K2ZF
 



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Re: K2/100 QSK problem

Don Wilhelm-4
  Jim,

No relays are involved in the K2 T/R switching, it is all solid state
and it is quite fast.

I could surmise that your problem occurs after a band change or right
after a power cycle or after a change in the requested power.  In cases
like that, the K2 will drop the power to a low value and build up to the
requested level after a dot or two - the DX station may not be hearing
the dots at lower power.

To avoid that "initial power leveling" situation, you would have to
transmit a few dots before your callsign.

OTOH, if that happens consistently (and not after a band change or
change of power), then you should check further.

73,
Don W3FPR

On 11/15/2010 6:45 PM, [hidden email] wrote:
> Upon initial power up OR after the K2 has been idle for a short period of time I have discovered that the first character keyed gets truncated. If I was to send my call sign - K2ZF - the K would be transmitted as  A. Letter K  dah dit dah  -  the first dah would NOT get transmitted and the receiving station would answer  A2ZF. Its no problem if I was to call CQ and repeat my call sign a few times, but if I'm chasing DX and I send my call only once the DX would reply  A2ZF.
> Every other letter gets transmitted properly afterward, its just the first character after the K2 has been idle. Should I be looking for a sticky relay and if so which one?
> Thanks,  Jim  K2ZF
>
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