[Icom] IC-746PRO vs IC-756PRO

Wed, 26 Feb 2003 11:44:12 -0800

Hi Paul,

This may be of help.

Here are 6 major differences between the IC-756Pro II and the IC-746Pro
(IC-7400). Many of these comments also apply to the 756Pro.

1. The IC-756Pro/Pro II has a real-time Spectrum Scope module (actually a
mini-spectrum analyser with 1 kHz RBW @ -6dB) which is completely
independent of the main receiver. The IC-746Pro "borrows" the main receiver
to perform a band sweep
for the spectrum-scope display (non-real-time). The receiver is muted during
the sweep.

2. The IC-756Pro/Pro II has two independent physical 1st local oscillators
(synthesisers), allowing Dual Watch operation (simultaneous reception on two
frequencies in the same band and mode). The IC-746Pro lacks this capability.

3. The IC-756Pro II has a stronger RF front end than the IC-746Pro or the
IC-756Pro.

4. The IC-756Pro and Pro II use the ADI SHARC DSP; the IC-746Pro employs the
TI
DSP. The DSP performance in the two radios is similar, although the 746Pro's
ADC's are a little noisier.

5. The IC-746Pro has 2m capability; the IC-756Pro/Pro II do not.

6. The IC-746Pro has a monochrome dot-matrix type LCD display,
whilst the IC-756Pro and Pro II have a full-colour TFT display.

Some reviewers have stated that the 756Pro2 has somewhat better receiver
"numbers" than the 746Pro. Here is a link to a discussion of this:

http://www.archi.is.tohoku.ac.jp/~ooba/ja7ude/index.html

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

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Paul S. Serio
Sent: Wednesday, February 26, 2003 11:23
To: [email protected]
Subject: [Icom] IC-746PRO vs IC-756PRO

Thinking about selling my original 756 and buying a new 746PRO. The price is
very low now and they are throwing in the power supply. Curious as to how
much difference there is between the 746PRO and 756PRO performance wise.
I could pick up a used 756PRO for about the same money. Anybody compared
these two rigs side by side? Also does anyone know if the band scope on the
746PRO is a continuous display or does it work like my 706 and make one scan
of the band with the audio muted? Thanks.
Paul, N5PS