April 2008 Announcement

Last Minute News:
For 20M run, we will be 1 kHz below announced frequency.

For 40M run, we will be 1 kHz above announced frequency.

The Midwest VHF/UHF Society (located in Southwest Ohio) is pleased to announce that our second MVUS Frequency Measuring Test will be held on Saturday, April 19, 2008. There will be two transmission periods, each on a single band: the first at 16:30 EDT (2030 UTC) on 20M, and the second at 17:30 EDT (2130 UTC) on 40M. Transmissions will be from W8KSE in Dayton, Ohio (grid square EM79).

Here are more details:

If you have any questions, please send them to We will publish the official frequencies shortly after the submission deadline to time-nuts and fmt-nuts, and will make the full results available on the MVUS FMT web page as soon as we can.

Our goal is to transmit a signal known in frequency to parts in 10e-12 (i.e., less than 0.0001 Hz error at 10 MHz) and stable to a similar level during the course of the transmission. Frequencies will be measured at the transmitter site with a system capable of microHertz resolution referenced to a GPS disciplined oscillator, and will also be monitored by another station in groundwave range that can measure the frequencies with similar accuracy.

The MVUS Frequency Measuring Test is intended to supplement, not replace, the ARRL FMT.

Further information will be posted at

For discussion about off-air frequency measurement, we suggest you check out the FMT-nuts mailing list, sponsored by Connie Marshall, K5CM. For details, go to