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[Amps] Weakness of first two letters of call signs

To: "" <>
Subject: [Amps] Weakness of first two letters of call signs
From: "Jeff in Mali: via Amps" <>
Reply-to: "Jeff in Mali:" <>
Date: Tue, 6 Oct 2020 10:24:19 +0000 (UTC)
List-post: <>
In my pileups, I find that people often send their call signs only one time. 
Most call signs are of the form XX#YY or XX#YYY. By the time their sending gets 
to the #, their signal is strong enough so that I can copy the rest of the 
i am wondering if it is a common property of amplifiers that they take a finite 
time to reach full power and that as people send their call sign, the first 
couple of letters are being transmitted at less than full power?
Do people in the group have any experience with this phenomenon, or is it just 
my imagination? 
I try to get people to send their call 3 times (QSZ 3), but someone has 
convinced a lot of operators that once is enough.  
Jeff TZ4AM
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