Re: [amsat-bb] AIDC-2733 gain measurement

[John Franke <j.m.franke@xxxxxxxxxxxxx>]

A better term smay be hair-pin.  Comb fiters appear as the teeth of a comb.
Interdigital filters appear as two opposing combs interwoven.

John  WA4WDL

>A technical nit:  Are these really "comb" filters?  I believe that
>a comb filter is a filter whose frequency response graph looks like a comb.
>These are used in video processing to separate the chrominance  and
>luminance parts of the signal.
>
>Perhaps they are actually "interdigital" filters?  (I have never seen
>the insides of one of AIDC units.)
>
>Doug
>NA1DB
>
>
>At 05:00 PM 4/2/01 , Mahlon Haunschild wrote:
>>Did you re-tune the two
>>comb filters to 2400 MHz before you measured it, or are they still tuned
>>for the stock bandwidth?
>
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