[TenTec] Actual TT219 250 Hz Bandwidth
Bill Tippett
btippett at alum.mit.edu
Thu Sep 11 16:54:34 EDT 2003
N4PY:
>I just measured my 250 hertz filter in my Orion at 258 hertz
Thanks Carl...exactly what I needed and how I measured the 500 Hz!
Now I'm wondering why the 500 Hz was so far off. Guess I'll go ahead
and exchange for a 219!
K0CQ:
>Are you sure the Tentec specification isn't at the 3 dB down points?
That's a standard depth for bandwidth of a tuned circuit.
No it is 6 dB bandwidth per the .pdf spec here:
http://www.qsl.net/tentec/manuals/219.pdf
3 dB might be standard elsewhere but both Inrad and TenTec use 6 dB.
http://www.qth.com/inrad/tentec_menu.htm
73, Bill W4ZV
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