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Total 5 documents matching your query.

1. LF: TA 04Jan (score: 1): Author: "John Andrews" <[email protected]>; Date: Tue, 04 Jan 2005 04:36:25 +0100; Have been watching VO1NA, WD2XES and WD2XGJ on the CT1DRP and G3YXM grabbers tonight. Dave will wish that he had set Argo for slow, rather than regular speed. Conditions have been pretty good in the; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-01/msg00061.html (8,667 bytes)
2. RE: LF: TA 04Jan (score: 1): Author: "Laurence KL1X" <[email protected]>; Date: Tue, 04 Jan 2005 10:47:36 -0900; Ive just modified the outboard preamps for the FT817 and now have to "seried" 2 x g3yxm/mrf bandpass amps and thats woken the 817 up! More than sufficient gain and I may end up putting a T 50 ohm att; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-01/msg00073.html (10,103 bytes)
3. RE: LF: TA 04Jan (score: 1): Author: "Dr. Tom Gruis, KØHTF" <[email protected]>; Date: Tue, 4 Jan 2005 13:53:48 -0600; I would very much appreciate information on the modifications! Thanx, Doc. Ive just modified the outboard preamps for the FT817 and now have to "seried" 2 x g3yxm/mrf bandpass amps and thats woken th; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-01/msg00075.html (10,028 bytes)
4. RE: LF: TA 04Jan (score: 1): Author: "Laurence KL1X" <[email protected]>; Date: Tue, 04 Jan 2005 11:01:25 -0900; Tom see http://www.g0mrf.freeserve.co.uk/preamp.htm I fitted two of this is a small box and literally connected them in series They are nominal 50 ohm in/out devices and only cover the 137Khz band -; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-01/msg00076.html (11,011 bytes)
5. RE: LF: TA 04Jan (score: 1): Author: Joe Craig <[email protected]>; Date: Tue, 4 Jan 2005 16:50:04 -0330 (NST); I use a "Burhans" preamp with my FT-817. The measured gain was 30-35 dB. Like the G0MRF version Laurence is using, it uses a BJT and FET with a somewhat enigmatic biasing arrangement for the BJT. The; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-01/msg00077.html (9,605 bytes)

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