It sounds like some recurring data tx, perhaps some kind of telemetry? I also hear similar signals at 1727 kHz and 1767 kHz.
The 1767 signal is quite strong here in SW Wisconsin, at around 10 over S9 or 100 microvolts on my rig with a homebrew quarter wave very low "L" averaging 15 feet high and uses the radial system of my Butternut HF-9V vertical and is connected to the HF-9V feedpoint. The 1727 frequency is about S9 and the 1738 about 5 over S9. Noise levels are often close to S9 now. The signals transmit a carrier for about 2 seconds, then a data transmission for about 4 seconds. 73, Rick, KV9U Howard Brown wrote: > Can anyone decode the signal on 1738 kHz right now? > > Howard K5HB > > >
