[IRCA] New Filter on the Sony SRF-M37V = New Radio!
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[IRCA] New Filter on the Sony SRF-M37V = New Radio!



Hi all:

Acting on inspiration from Mesa Mike and Gil Stacy who put a 6.0 khz
filter in theirs, Jim Kenny and I have replaced the stock filter on our
M37V's with a 4.5 khz replacement, which he obtained through RadioLabs. 
Let me tell you - it's a new radio!

Gone are the 80-100 khz swaths of destruction laid by strong locals, which
are now kept within their 10 khz boxes even better than the Sony SRF-59. 
The selectivity champion of UltraLights, the Eton e100, is still perhaps a
hair better, but it's almost a draw depending on the situation, so the
modified M37V is clearly among the UltraLight elite now.  With its already
commendable sensitivity and above-average nulling ability, the M37V is now
a potent DXing machine, and its performance grades in the latest Gallery
have been adjusted accordingly.  If only the M37V's image problem could be
fixed...

The filter is the LTS-450GW.  The spec sheet can be seen on
   http://www.euroquartz.co.uk/pdf/ceramic-lts-450w.pdf
I recall that someone (Mesa Mike?) reported that the next one down, the
3.0 khz model, made things too muffled, whereas this 4.5 khz version still
sounds remarkably crisp.

The filters are $7.50 plus shipping, and you have to call or write
(they're not listed on their Web site).  Contact Todd D. at
  RadioLabs Intl. Inc.
  3610 Pryor Ct.
  Fortuna, CA 95540
  Phone:(877) 575 3700
  Fax:(707) 725 6633
  todd@xxxxxxxxxxxxx

Good luck!

73 - Kevin S.
Bainbridge Island, WA





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