[ICOM] IC-7000 AM Modulation Problem

Adam Farson farson at shaw.ca
Thu Apr 6 03:26:10 EDT 2006


Hi Dave,

Actually, as far as I am aware very few Canadian hams run 2.25 kW.
Amplifiers with Po > 1.5 kW are very costly here, and require a 30A 240V
mains service - not found in too many ham-shacks.

CW? Most new licensees (at least in our club) are opting for the code
waiver.

(Back on topic) The IC-PW1 only puts out 1 kW.

Cheers for now, 73,
Adam VA7OJ/AB4OJ


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of David J. Ring, Jr.
Sent: 05 April 2006 23:27
To: ICOM Reflector
Subject: Re: [ICOM] IC-7000 AM Modulation Problem

Adam,

Obviously the Canadians run more SSB power 2.25 kW output to make it just as
reliable as their legal 750 W Morse CW output.  What a difference!

73
David N1EA

----- Original Message -----
From: "Adam Farson" <farson at shaw.ca>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Wednesday, April 05, 2006 2:17 PM
Subject: RE: [ICOM] IC-7000 AM Modulation Problem


Hi Dave,

Canada is somewhat more generous in this respect. Industry Canada
regulations allow Advanced licensees 2.25kW PEP output (SSB), and 1kW DC
input to the final (or 750W carrier output)  for all other modes.

The other side of the coin is that transmitted occupied bandwidth is limited
to 6 kHz per channel (at -26 dBc) on all HF bands except 30m (1 kHz) and 10m
(20 kHz). So "high-figh" AM ops are limited to 10m.

Cheers for now, 73,
Adam VA7OJ/AB4OJ




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