PBT Mod for the IC-765

As you may already know, the IC-765 has IF-shift but no passband tuning. There is, however, a simple mod originally designed by Gerd Henjes, W2ISB, which allows the IF-shift button to tune the passband while the IF-shit button is in OFF position. This mod is described in the VE3HUR IC-765 notes and reproduced here with some illustrative pictures, as well as a video demonstrating the difference between PBT and IF-shift

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IC-765 Overview

The IC-765 has been ICOM’s flagship HF-radio for many years. Even today (2006) it represents excellent value for money as it has one of the best receivers ever made. The IC-765 has 4 IF stages (69MHz, 9MHz, 455kHz, 9MHz), built-in power supply (PS-35) and automatic antenna tuner (AT-150), and it comes with 500Hz CW filters (mounted from the factory. Optional 250Hz CW filters (FL101 and FL53A) are available, too, as is the optional FL102 6kHz AM filter.

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IC-765 in Digital Modes

The Christmas Holidays are just over for me and I have had a chance to work some radio. Unfortunately, I had to work between Christmas and New Years Eve, nevertheless, I managed to do a few QSOs. My main goal was to work on the WARC bands and try some PSK31 with the IC-765.

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IC-765 Tuner Problems

When I was testing my newly acquired IC-765 last Christmas, I had some troubles with the built-in antenna tuner. From time to time, it would start re-tuning the antenna in the beginnig or even the middle of my transmissions.

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This is my chance!

Today, OZ9SJ posted an IC-765 for sale on brugtgrej.dk, a site for trading second hand equipment for hams. The price is rather high, approximately 1100 euros, but the radio did only have one owner and is claimed to be in mint condition, both from a functional and cosmetical point of view. It even comes with 19″ rack mounts.

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