[R-390] Line Filter

[Tisha Hayes]

I use a Corcom 6EHQ1 medical grade line filter. You can find them on eBay
for about $20 each.

The insertion loss looks like;

Line-Ground:
24 dB 10 KHz
29 dB 20 KHz
39 dB 50 KHz
42 dB 150 KHz
28 dB 500 KHz
35 dB 1 MHz
36 dB 2 MHz
30 dB 5 MHz
24 dB 10 MHz
16 dB 20 MHz
15 dB 30 MHz

Line-Line:
6 dB 10 KHz
10 dB 20 KHz
43 dB 50 KHz
70 dB 150 KHz
75 dB 500 KHz - 2 MHz
65 dB 5 MHz
55 dB 10 MHz
50 dB 20 MHz
40 dB 30 MHz

The data sheet is at   http://www.corcom.com/Series/Medical/HQ/

Getting an old line filter means that the caps in the filter are also old
and probably leaky. You will end up with an inferior filter that may have
the same problems as what you are replacing.

I had a problem with the radio tripping out the GFCI, after I replaced the
line filter that problem went away.



-- 
Ms. Tisha Hayes/ AA4HA
----------------
Factory certified interoceter repair center.
"Remember, use only genuine interoceter parts."