Topband: BOUNCE topband@contesting.com : Approval required:

[Bill Tippett]

From: W2pm@aol.com
Message-ID: <3f.475aea8.26480023@aol.com>
Date: Mon, 8 May 2000 07:33:55 EDT
Subject: MFJ 1025 or 1026 Noise Cancellers
To: topband@contesting.com

Does anyone have  views or comments on the MFJ 1025 canceller VS the 1026 
which has the optional "active antenna preamp"?  I recently acquired the 
1025 as my ANC4 was fine except on the topband. I knew the MFJ phasing 
circuit has the  range to cover 160 and also has a main antenna attenuator 
which can be very useful in certain scenarios - the ANC4 does not.  However, 
it seems the MFJ 1025 version doesnt have the noise antenna gain to perform 
well except on the most raucous and strong S7-plus noise sources.  They 
advertise the 1026 version as having a "active antenna preamp" targeted to 
SWLs I suppose but they do not mention that it may be important for lower 
level noise nulling ...    Also, the lack of noise gain requires higher 
attenuation of main antenna signals to do the nulling. 

73 Pete, W2PM



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