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 April 2024 Frequency Measuring Test

There will be two transmitting stations for the April Frequency Measuring Test (FMT); W8RKO in Ohio and K5CM in Oklahoma. Transmissions will be made on 40 and 80 meters (in that order). The FMT will start with a "call up: by K5CM at 0300 UTCf on April 24 (Tuesday evening in North America). If the scheduled frequency is busy, transmissions will be on frequencies close the published frequency, so be prepared to tune.

Measure the transmitted frequency and report by 0200 UTC on April 27, at which time They'll be published on the website. Stations submitting measurements within =_ 1 Hz for all transmissions from K5CM or W8RKO will be listed in the "Green Box" of the results.

Although the call up is scheduled to start at a specific time, both stations will try to start earlier. Every effort will be made to start key down at the published time. the call-up period will last 4 minutes, one minute longer than usual, and the key-down period will be 1 minute.

 

Times of Transmission for FMT ....

NOTE: The DATES and TIMES are GMT, UTC, Z  ... convert...

0300Z-0350Z Apr 24, Submit Measurements by 0200Z, Apr 27

K5CM 40m (near 7064 kHz)
0300Z Call up for 4 minutes
0304Z Key down for 1 minute
0305Z End of 40m run

W8RKO 40m (near 7065 kHz)
0315Z Call up for 4 minutes
0319Z Key down for 1 minute
0320Z End of 40m run

K5CM 80m (near 3598 kHz)
0330Z Call up for 4 minutes
0334Z Key down for 1 minute
0335Z End of 80m run

W8RKO 80m (near 3599 kHz)
0345Z Call up for 4 minutes
0349Z Key down for 1 minute
0350Z End of 80m run

If the frequency is busy for a run, please standby and the FMT will start as soon as practical.

You don't have to use special lab equipment to enter the FMT. Modern HF transceivers can make frequency measurements quite accurately. SDR transceivers and PC software can make precise measurements of signal frequency.

If you've never entered an FMT before, information on how to measure the frequency of a carrier is available at www.k5cm.com, and in several previous QST articles listed below. Other practice FMTs are run throughout the year and are usually announced on the fmt-nuts group at groups.io/g/fmt-nuts.

Click on Data Entry in the navigation menu near the top of this page to submit your measurements. Results will be available immediately following the data entry deadline. Also, be sure to describe your setup when you submit your measurements online. The Green Box in the results shows stations submitting measurements with an accuracy of 1 Hz or better for all FMT frequencies.

References