[Icom] IC 756 Pro II vs FT1000MP MKV

[Adam Farson]

Hi Hans,

I purchased a new IC-765 in June 1990. The first thing I did to it was the
W2ISB
PBT Mod. In their haste to comply with a patent-infringement writ, Icom's
engineers stripped out PBT and left the IC-765 with two horrors:

1. A crude IF Shift implementation which bypasses the 9 MHz IF filter when
IF Shift is enabled.

2. Mis-terminated SSB IF filters, causing up to 6 dB of passband ripple
(corrected in S/N > 3000). This causes severe attenuation of "highs" in the
recovered audio when the reconstituted PBT is brought up.

Upon acquiring an IC-751A, I finally sold the 765 in June 1992. I found that
the 751A had far superior adjacent-channel selectivity and much more
aggressive PBT operation than the 765. However, the 751A's PLL synthesiser
was perceptibly noisier than the 765's very quiet DDS.

I replaced the 751A with a 781. That was the best analogue radio I had ever
owned, and my last analogue HF transceiver prior to my entry into the DSP
era. I now have an IC-756Pro II in my station, and would not go back to an
analogue radio again.

New HF radio equipment supplied to military and governmental communications
services is now 100% DSP-based. In my view, that is more than sufficient
endorsement of DSP technology.

Best 73,
Adam, VA7OJ/AB4OJ
North Vancouver, BC, Canada
http://www.qsl.net/ab4oj/
Icom FAQ site:
http://www.qsl.net/icom/

Icom FAQ: http://www.qsl.net/icom/