[TenTec] Actual TT219 250 Hz Bandwidth

[Bill Tippett <btippett@alum.mit.edu>]

N4PY:
 >I just measured my 250 hertz filter in my Orion at 258 hertz

W4ZV:
 >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.

        Mystery solved.  The filter was actually a 218 which is plainly
marked on the top of one of the crystals nearest the center.  I had
set my DSP to what I thought would be well above the 250 Hz BW, but
since the crystal filter BW was actually 1800 Hz, I was really just
measuring the BW of the DSP filter instead of the crystal filter.

        WTB...a REAL TenTec 219 250 Hz filter.

                                                73,  Bill  W4ZV