[ICOM] IC756 with InRad filter problem

[Phil Cooper]

Hi all,

I had an IC756, to which I installed two InRad filters. I believe they were
the 111 and 116. I know one plugged straight in, while the other needed to
be wired in.

I used them for RTTY, after doing something in the menu system to fool the
IC756 that it had native Icom filters fitted.
Whilst I had the radio, they worked well for me.

Now, here is the issue.....
I sold the radio on, and had to ship it from Guernsey to Scotland. Somewhere
along the line, something has happened, as the new owner tells me that he
can hear nothing on CW when the filters are engaged, and that the bandwidth
on RTTY is very poor, with attenuated signals too.

Can anyone tell me what I would have set in the menu, and what may have gone
wrong in the journey?

I haven't used the 756 for ages, and now the radio and manual have gone,
along with the memory of what I did and how.

73 de Phil GU0SUP