[ICOM] Changes in the Filtering of the Icom IC-775DSP
Adam Farson
farson at shaw.ca
Mon Apr 11 03:45:03 EDT 2005
Hi Hans,
Interesting collection of filter choices. In 1995, I made some filter
changes on my IC-781, as follows:
1. Replaced the FL-96 with an FL-44A. This improved Twin PBT operation and
adjacent-channel selectivity by closely matching the bandwidths and
shape-factors of the two filters (FL-80 and FL-44A).
2. Replaced the stock FL-102 with an FL-223 (9 MHz, 1.9 kHz BW), and flipped
the two dipswitches on the IF board. This provided a narrow SSB setting
(selected by pressing the "WIDE" button!)
Cheers for now, 73,
Adam VA7OJ/AB4OJ
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