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Re: [Amps] Slow start-up of Amps on CW

To: "Jeff in Mali:" <>
Subject: Re: [Amps] Slow start-up of Amps on CW
From: David Gow <>
Date: Mon, 11 Mar 2024 10:19:33 -0700
List-post: <>
Most modern transceivers have a menu setting that will delay the first
letter transmission for a milliseconds after the amp has been switched to
transmit.  If the amplifiers have mechanical relays this is needed both to
avoid cutting off letters and to avoid hot switching.switching.  The ones
you aear  cutting off letters likely do not have the transceiver delay set
too fast for that particular amp.  I had that problem with my IC-7300 and
ALS-1306 until I set the transmit delay higher in the IC-7300 so it
twitches the amp to send a few milliseconds befor actually transmitting.
No more problems.  It obviously only matters if you are op[erating QSK. of
fast vox.  My foot pedal response also takes care of it!!

On Mon, Mar 11, 2024 at 8:07 AM Jeff in Mali: via Amps <>

> Dear All:
> I find that on CW, I miss the first letter or two letters of people's
> call. I thought that it was just me not paying attention or half-deaf from
> too many years cutting grass as a kid with lawn-mowers with no mufflers.
> However, more and more I'm convinced that some amps are not instantaneous,
> not picking up immediately as the first letter(s) is (are) keyed on CW or
> spoken on SSB. The other night I was watchin my own amp (Elecraft KPA-1500)
> and it seemed only to come up to full-power after a few characters.
> Is this a generalized phenomenon, or just my imagination?
> 73,
> JeffTZ4AM/K1MMBBamako, Mali
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