[AMPS] Telephone RFI Radio Shack Phones
Tue, 8 Dec 1998 18:46:56 -0800
>brad roope wrote:
>> Also are the K-Comm
>> filters any good?
>I am using a king's ransom worth of KCOM filters here (we have a home office
>with a bunch of phones). The answer is: they do work, on some phones. But
>there are some stubborn ones for which they do not work.
A double section filter has more RF attenuation than a single section
filter. The double-filters described on my Web site use roughly $1.34
worth of electronic components each. The major expense is the Mouser p/n
43LS474 chokes - which cost 31-cents each if you buy a bag of 100. These
chokes have no resonances in the amateur radio bands. 4 chokes are
required for each double-filter.
- later, Vic
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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