[Lowfer] Lowfer MLS

[wa3tts]

Garry & All:  I'll add MLS to my "do list"    Although I may not get there til tomorrow. Update on the bendix loop,  added a dual winding CM choke (2 x 2.4mh on a ft 50 75 82 core) to the 12vdc heater and ground lines of the power supply, which reduced my ac service ground noise considerably at LF. Also found out quickly the need for a mag shield over the AC PS xfmr. Hearing most of the stronger NDBs with the loop in the basement.  Also, the Bendix loop 12sk7 amp has no output matching to lower Z so a temporary 10:1 xfmr gets it into at least a 4:1 condition which brought the LF signal levels up 3 or 4 s units.... interesting unit...I may try a fet or op amp version at some point down the road....

73, Mike wa3tts




Sent from Samsung tablet.


-------- Original message --------
From: Garry Hess <k3siw at sbcglobal.net> 
Date: 10/20/2014  8:47 AM  (GMT-05:00) 
To: lowfer list <lowfer at mailman.qth.net> 
Subject: [Lowfer] Lowfer MLS 

Lowfer MLS in EN90gt is presumably QRV with QRSS30 at 186.204 kHz. 
Nothing heard here over night and this morning from 591 km even with 
wide-frequency version of ARGO but EAR at 575 km is doing fine. Perhaps 
others, especially Mike, WA3TTS who's closer, can pick it up.
-- 
73, Garry, K3SIW, EN52ta, Elgin, IL
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