[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Satellite Mode Duty Cycles...
- Subject: [amsat-bb] Satellite Mode Duty Cycles...
- From: RogerKola@xxxxxxx
- Date: Wed, 4 Feb 2004 13:20:19 EST
I hate to start this, but as a "slow" CW operator, I did the research and
here is what I came up with...
Unprocessed SSB ~ 15% Duty Cycle
Speech Processed SSB ~ 35% Duty Cycle
Standard CW (PARIS Format) ~ 44% Duty Cycle
Farnsworth Format CW (13 WPM with 5 WPM spacing) ~ much better than standard
CW
My brain is fudge...so if someone cares to calculate the Duty Cycle for
Farnsworth Format...use the word PARIS, (include the word spacing at the end) and
use these values for the code:
dits and intra-character spacing would be 92.3 milliseconds
the dahs would be 276.9 milliseconds
the inter-character spacing would be 1.443 seconds
inter-word spacing would be 3.367 seconds
BTW...The reduction in required Power Level for effective communication with
CW....Priceless...
Roger
WA1KAT
----
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
AMSAT Home