Topband: Slightly OT - amplifier noise

[GEORGE WALLNER]

Steve,
The J310 is normally a pretty low noise device.
Perhaps you should look at filtering the power supply and any control and 
feed cables.
GL and 73,
George,
AA7JV


On Sat, 14 Mar 2020 10:40:30 -0600
  n2icarrl at gmail.com wrote:
> This discussion of Hi Z amplifiers has been quite interesting. Excellent information from W1FV and K7TJR.
>
> I have an RX amp question, related but slightly off-topic.
>
> I have an MFJ-1025/1026 noise canceler. I like to use it on the higher HF bands to cancel power line QRN. The noise is typically S3-S4, but I want it down to S0 to hear the bottom layer of stations. My sense antenna works fine, and the QRN is canceled. However, the MFJ-1025 amplifier noise is quite significant, often negating the QRN cancellation. The MFJ amplifiers are J310's. Any recommendations for something quieter ?
>
> 73,
> Steve, N2IC
>
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