[SOC] MCW, again.

[D.J.J. Ring, Jr.]

It's horribly wide and intrusive!

It's about as wide as a SSB signal.

About 1.2 kHz wide.

It sounds like three carriers, say tones of 400, 800 and 1200 Hz all
sending the same pulses of Morse.

73

DR
N1EA

On Fri, Oct 5, 2018, 12:25 Bry Carling <af4k at hotmail.com> wrote:

> MCW sounds so wonderful. A great loss that they banned it on amateur HF.
> It’s no more intrusive than a regular AM signal. No need for 2400 watts.
> Most LF beacons run 25 watts of MCW and you can copy them from hundreds of
> miles away sometimes.
>
> Best regards - Bry Carling, AF4K
>
>
>
>
>
> On Oct 5, 2018, at 11:10 AM, D.J.J. Ring, Jr. <n1ea at arrl.net<mailto:
> n1ea at arrl.net>> wrote:
>
> FCC rules forbid it below 50.1 MHz.   Canada permits it as does the
> United Kingdom.
> Ships used it to attract attention during SOS as it is very wide.  A
> 600 watt CW signal becomes a 2,400 watt PEP tone modulated signal when
> A2 is turned on.
>
> 73
>
> DR
> N1EA
>
> On Fri, Oct 5, 2018 at 11:04 AM Bry Carling <af4k at hotmail.com<mailto:
> af4k at hotmail.com>> wrote:
>
> I love MCW. There are people who claim it is no longer legal but there has
> never been a test of that. It is still in use by LF Beacons, VHF users
> occasionally. I think it sounds GREAt for CW on HF due to that nice
> noise-blanking Carrier!!
>
> Best regards - Bry Carling, AF4K
>
>
>
>
>
> On Oct 5, 2018, at 10:23 AM, Tom Cooper via SOC <soc at mailman.qth.net
> <mailto:soc at mailman.qth.net><mailto:soc at mailman.qth.net>> wrote:
>
> MCW (Modulated Continuous Wave Modulation)  is a perfect SOC term because
> it uses "modulation" so perfectly.  Just think, we could say things like
> "modulated by modulated continuous wave modulation"  whenever we like.
>
> The next time I check the frequency for occupancy a couple of times
> ("QRL?  QRL?") and get no reply, then call CQ only to be called an ".- ...
> ..." by some FOC operator for using his personal frequency I'm going to ask
> if he would mind if I call CQ again a few times using a rig "modulated by
> modulated continuous wave modulation" and repeat the question just to make
> sure it is fully understood.
>
> 73,
>
> Tom  W1EAT
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