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

To: "cq-contest@contesting.com" <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Laptops for mobile....
From: Jim Brown <k9yc@audiosystemsgroup.com>
Reply-to: k9yc@arrl.net
Date: Sun, 30 May 2021 02:40:45 -0700
List-post: <mailto:cq-contest@contesting.com>
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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