[CQ-Contest] Amplifier ratings nomenclature

[Ranko Boca]

Correct Charly,

CCS is important deffinition for FM/AM broadcasting services.
ICAS is what we really have in amateur radio service.
100% ICAS means that amplifier can transmit 24/7/365 on CW/SSB.  In real
life we don't have it, but we have SO2R and dual CQing with higher duty
cycle than standard contest operation.

Hardest duty cycle in amateur radio service will be  RTTY SO2R with dual
CQing, what becomes practice now days. It is something between CCS and ICAS
standard, as operator is still making some RX times.

73
Ranko



On Dec 29, 2017 07:23, "Charles Harpole" <hs0zcw at gmail.com> wrote:

Ok, I have had it with vague sales statements.  The following was used
since at least 1955 and all amp experts know it.

CCS is Continuous Commercial Service.  This is true 100% duty cycle, BRICK
ON THE KEY, rating indicating operations for 24/7/365 with no off times.
No sales talk juggling.

ICAS is Intermittent Commercial and Amateur Service.  That means typical
on-and-off ham operations without long key-down transmissions (usually 10
minutes is called long).  This is NOT 100% duty cycle but indicates use of
full power with limited key-down times and definite key-up times.

An amp can be called 100% ICAS by imaginative advertising writers, but that
number is definitely not CCS.

It is helpful to hold to old established nomenclature for clear
communication.

​73​

Charly, HS0ZCW
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