John, the keyed waveform spectra for both the 746PRO and the PRO2 show that
the keying components are more than 50 dB down at +/- 300 Hz from the
carrier frequency.
Not bad . . .
General agreement with your other observations.
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: "John Rippey" <w3uls@3n.net>
To: <tentec@contesting.com>
Sent: Saturday, July 05, 2003 9:06 AM
Subject: [TenTec] Product Reviews II
<snip>
> I have been pleasantly surprsied to discover that the keying bandwidth of
> my IC-746PRO is relatively modest, about 1 kHz, compared to the atrocious
> 2.5+ kHz of my FT-920. The QSK performance of the IC-746PRO, moreover, is
> smooth as silk, not thumpy like the FT-920. Another surprise. (I haven't
> had a chance to make an evaluation of my new/used OMNI VI since it is back
> at Ten-Tec for repairs.)
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