[Elecraft] Which hand-held PTT switch? OT

ab2tc ab2tc at arrl.net
Mon Oct 26 14:12:37 EDT 2015


Hi,

That is routinely tested by ARRL. From the K3/100 review in January 2009
QST:

Receive-transmit turnaround time (tx delay): SSB, 12 ms; FM, 9 ms. Unit is
Not specified. suitable for use on AMTOR.

So it's probably the user.

AB2TC - Knut


David Cutter wrote
> Sorry for the thread drift, but, has there ever been an investigation into 
> response time of hitting the PTT and beginning to speak?  Occasionally I 
> hear the first syllable being lost and I've wondered if this is due to
> time 
> delays in the equipment or the user, or both.  Brings back memories of 
> bucket-brigade delay-lines.
> 
> 73
> David
> G3UNA 
> 
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