> Apparently NOT an OTH radar, if it sweeps so > slowly. The 18 minute sweeps are coming from this ROTHR system. Each of the three sites can be heard, all with different signal strength depending on your location relative to their transmitters. The 18-minute cycle is not synchronized across all three transmitters. For example, you may hear Virginia at the top of the hour, next followed by PR 45 seconds later, then followed by Texas perhaps 15 seconds later. Once can record the signal strength from each of the sweeps then count 18 minutes and if propagation has not substantially changed, they are easily identified.
What I need is an 18-minute look ahead timer that automatically engages my 20 dB attenuator for a split second! Paul, W9AC ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
