[CQ-Contest] Laptops for mobile....

Jim Brown k9yc at audiosystemsgroup.com
Sun May 30 05:40:45 EDT 2021


On 5/29/2021 5:13 PM, Keith Dutson wrote:
> Is there a way for me to measure the noise?

No easy way to MEASURE it, but there are several suggested methods in 
the app note on my website about Building Contest Scores by killing 
noise. One of "go-to" noise probes is a vintage Kenwood TH-F6A talkie, 
which has widband RX, from either a built-in loopstick or the coax 
conector (defaults to the loop below 10 MHz, the coax above, but can 
switched in software). The RX is a block of wood, but it works well 
close up to noise sources. My starting point is just above the AM BC 
band, in AM mode, and I probe around the suspect. If it hears noise, our 
antennas probably will too. Several other radios are listed, as well as 
SDRs that can function as a poor man's spectrum analyzer.

73, Jim K9YC



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