On Thu, 09 Mar 2000 14:26:32 -0500 (EST) 00tlzivney@bsuvc.bsu.edu writes:
>
> In conjunction with my earlier post comparing measured specs for
> a variety of contesting rigs, I offer the following measurements of
> filter selectivity. The filter measurements for the IC756PRO are
> from
> Peter Hart's RadCom review; those for the International Radio are
> from
> their website.
>
>
> -6dB -60dB
> IC756PRO 2.4kHz 2520 Hz 3560 Hz
> 250 Hz 263 Hz 859 Hz
>
> IR TenTec filters
> #756 2.4kHz 2488 Hz 3575 Hz
> #751 250 Hz 340 Hz 680 Hz
>
> Seems that the "old fashioned" technology has nothing whatever to
> fear/envy the new toys.
>
> Terry Zivney, N4TZ/9
> n4tz@arrl.net
I had only a couple of minutes with the PRO at a SCCC club
meeting, but found that the narrower (<250) settings of the cw
DSP were very usable, with little or no ringing, and
the -60 dB points were MUCH narrower than the cascaded 500's
in my TS-850. I think it has potential. The best way to tell
is for a sharp operator to run the rig in a CONTEST, and give
us a report.
Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com
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