Someone pointed me to your webpage for bandpass filters for the ham
bands. It looks like some of your products might be useful to me, but
there aren't enough specs for me to know.
1. What is the power rating of the various filters? I see a statement
to the effect that they are "designed to be used with transceivers."
Does that mean 100 watts PEP or CW and 50 watts for continuous modes
like FM or RTTY/PSK? Or does it mean 0.5, 2x, or 3x those numbers?
2. A potential buyer needs to see response curves for the various
filters so he/she will know whether a given filter is likely to solve a
specific problem. For example, the reason we were talking about your
products in the first place is that a ham posted to an RFI email list
about a 50 kW station on 1540 kHz that he would like to clean out of
his transceiver. What is the rejection of your filter(s) at 1540 kHz?
Is it likely to be enough to solve his problem, or does he need a more
complex filter that has a steeper skirt on the low side of his
passband? If I want to put one of your filters on an 80 m CW station on
Field Day, can I expect it to give me any rejection of the guy working
75 m phone? What about putting a filter on a beacon transmitter that
might be at a commercial two-way site? And so on.
Thanks,
Jim Brown K9YC
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