[Icom] Summary of 60 Meter Performance of IC-765 (long)

[Jim Cox]

I agree with George completely on this the bandwidth of radios for 60
meters.  I believe the band will be virtually useless as can you imagine
several hams trying to use the exact same frequency?  With only 5 "channels"
and the propagation on this band where you will be able to hear other
stations trying to use the frequency as well, makes for a mess.  Can you
imagine 75 or 40 meters operation on 5 channels!!
Jim K4JAF

----- Original Message ----- 
From: "George, W5YR" <w5yr@att.net>
To: <icom@mailman.qth.net>
Sent: Thursday, June 05, 2003 1:07 AM
Subject: Re: [Icom] Summary of 60 Meter Performance of IC-765 (long)


> It has to be a Gentleman's Agreement and some common sense, David. To stay
> within the channel, our suppressed carrier indicating dials have to be set
> on the lower channel edge "somewhere." Our English cousins use an offset
> of -1500 Hz and ARRL is recommending the same. Makes sense as long as
> everyone tries to do the same. So the dial frequency *is* virtually set at
> 1500 Hz below the specified center frequency for each channel. I don't
know
> from firsthand experience but I am told this is the most common method for
> designating frequency in the military.
>
> Where we are in a world of hurt is the fact that many radios simply have
> neither the dial accuracy or stability to ensure that the entire sideband
> remains within the channel. As my example tried to show, a typical 2.4 kHz
> sideband filter setup produces an upper limit of 2910 Hz and a lower limit
> of 205 Hz. The dial doesn't have to be off very far to scoot one side or
the
> other of that sideband into enemy territory.
>
> Fortunately, I have no intention or interest in operating 60 meters, but I
> would hate for ham radio to get a black eye over it.
>
> 73/72, George
> Amateur Radio W5YR -  the Yellow Rose of Texas
> Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> "In the 57th year and it just keeps getting better!"
> <mailto:w5yr@att.net>
>
>
>
>
>
> ----- Original Message -----
> From: "David J. Ring Jr - N1EA" <n1ea@arrl.net>
> To: <icom@mailman.qth.net>
> Sent: Wednesday, June 04, 2003 11:46 PM
> Subject: Re: [Icom] Summary of 60 Meter Performance of IC-765 (long)
>
>
> > You're right on the money - did you notice ONE thing?
> >
> > The channel bandwidth is specified, and the center of the channel is
> > specified, but the carrier frequency is NOT specified.
> >
> > THERE IS NO SERVICE THAT THE FCC ADMINISTERS THAT HAS CHANNELS FOR
U.S.B.
> > AND THE CARRIER FREQUENCY IS NOT SPECIFIED.
> >
> > How dumb can the FCC get?  As far as I'm concerned it has been a steady
> > decline in sense since about 1975.
> >
> > Reaganomics didn't work - the FCC DID make $$$ in Auctions, but HOW will
> we
> > get on the same channel when the carrier frequency isn't named?
> >
> > Channel up those ICOMs.
> >
> > 73
> >
> > DR
>
> ----
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