[TenTec] How to Hear the Weak Ones,

[jerome schatten]

jerome schatten wrote:

>For me, the most useful part of the mfj noise canceling device was being 
>able to use separate receiving and transmitting antennas and being able 
>to continuously vary the gain on the rx side. Of course one cannot 
>operate qsk this way, but it does allow me to use my vert on tx and the 
>zepp on rx with good isolation, quite conveniently.
>
>Using the mfj in the noise canceling mode, I find that the sense antenna 
>needs be able to hear the noise about as well as the main antenna to be 
>effective. My zepp usually doesn't hear the noise sources very well and 
>the vertical hears nothing but. On 30 and 40 after sundown, the vert is 
>the tx antenna of choice by 6 to 10 db, so the separate antennas config 
>works well.
>
>Also, the mfj super dsp has continuously variable noise reduction (much 
>less objectionable on cw than the Jupiter's nr) and the ability to 
>narrow the audio passband with very steep skirts.  All these things 
>above taken together make a very high grinding city livable if not lovable.
>
>Jerome
>VA7VV - Vancouver
>  
>
Of course the last line should read: "... very high grinding city noise 
level, livable if not lovable." 
j