[Milsurplus] B&W Low Pass Filter?

[D C Macdonald]

I don't know the model number, but all B&W
lowpass filters I have seen are about 9 or 10
inches long.  I don't recall that B&W made any
of them in low (100W or less) versions.  The
1 kW versions will be of 50 Ohm impedance
and I seriously doubt that the output of the
ARC-5 runs anywhere near to 50 Ohms.
This may be a large part of your problem.

Somebody on either the ARC-5 list or this list
put out some info regarding keeping ARC-5
rigs "clean" with respect to TVI and other
harmonics.  If I recall, loading and tuning
control settings were critical.

Mac, K2GKK/5



----Original Message Follows----
From: Mike Hardie <mike46 at shaw.ca>
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] Low Pass Filter?
Date: Mon, 20 Sep 2004 21:30:16 -0700

Specs needed for B + W model 426 filter, is it a "low pass filter"?  
Application is filtering the output of ARC-5 Tx. (T-19)  Arc-5 is much 
modified, output is 100w plus without filter, but less than 10w with filter 
in line. (To dummy load - briefly, very very briefly.)  Frequency counter 
indicates freq dead on, have not looked at output (or anything else) on 
'scope yet.

Comments please.

Mike VE7MMH
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