Bert, PA7MM said: Hello, i am curious anyone has experience on topband
with the new roofing filter from Inrad for the FT1000(D) series.
I decided to upgrade my old FT1000 (see also the w8ji site) and keep it
for more years. Also i am not using the Ft1000 250 hz
filters because of to much signal loss.. Change into 400hz filters
worthwhile ?
Hi Burt,
I also have the FT1000 and have owned it since 1991. I did exactly what
you are considering - purchased the INRAD Roofing Filter, put in the
W7JI NB mod, and put in the 1.8 khz INRAD crystal filters.
I really like INRAD and think their products are great. Frankly,
however, I did not notice a dramatic difference when I put in the
roofing filter. I found the change unremarkable. The problem really is
there is no way (for me) to compare by switching the filter in and out
(i.e. A vs. B tests). It was easy to install and appears well made like
all INRAD products. I am not saying it does not work, only that I did
not see a significant difference, although I also admit it is difficult
to evaluate because you can't do A vs. B tests like when you switch
filters from 500 hz to 250 hz, etc.
Sorry I can't be of more help. My feeling is it was worth doing since
it did not cost much, and definitely do not hurt the performance.
73,
Bob/AA6VB
P.S. Please forward any results.
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