Showing posts with label signal. Show all posts
Showing posts with label signal. Show all posts

Wednesday, October 1, 2014

Interesting signal reports from my mobile setup

Yesterday, at lunchtime, I decided to test out the HF setup in the car, which I have recently reinstalled. I gave out a CQ on 14.005 with 100 watts through my roof-mounted Watson Multi-ranger antenna. I didn't actually want to make any contacts. I was happy enough just to look at the signal reports on the Reverse Beacon Network. And that's when it got really interesting!

As you can see from the photo on right, I was parked against a wall with a fence on it, and behind that is a big factory unit that it perhaps 30 feet tall. The front of my car is facing roughly east-southeast, so the factory is pretty much blocking me to the west-northwest. And what was my best signal report on the Reverse Beacon Network? VE2WU in Canada, which is where my signal should have been worst. Perhaps the fence was reflecting my signal strongly onto the long path? I had good reports from Belgium and Germany too, which should not be so surprising. But 54 dB snr from Canada is a damn good report, the sort of thing I mightn't even see with my hexbeam and 400 watts pointing directly to Canada!

Perhaps one of my readers can shed some light on what might have made my signal to Canada so strong?


Sunday, April 27, 2014

Dabbling in a bit of JT65 - 10w heard in Japan

Right now, I'm dabbling in a bit of low-power JT65. I was putting out a CQ using JT65-HF (version 1.0.9.3) on 20 metres and, as you can see from PSKreporter.info above, my puny signal was heard in Japan!! Right now, I'm in QSO with W2ZEN (Locator FN30) and he gave me a SNR report of -21. I don't do JT65 very often. In fact, I've only used it a few times, but it is absolutely fascinating. Hopefully I'll get some nice DX tonight. I can't imagine I will make too many contacts though - it takes a full six minutes to complete a QSO properly with this mode!!!
All the stations that heard my 10w JT65 signal,

Wednesday, February 12, 2014

Video: Using the Reverse Beacon Network to compare your antennas, and to discern band propagation

This is a short video I made today demonstrating how to use the Reverse Beacon Network to compare your signal on different antennas. The RBN is a very handy tool for the CW enthusiast and for hams interested in testing their antennas and also finding out about propagation on various bands. In this video, I use both an inverted v dipole and a Butternut vertical to transmit a CQ call on 10 Mhz (30 metre band). I then compare the signal reports spotted automatically by skimmer stations. However, on the second CQ call with the vertical antenna, I get an unexpected DX call . . . I will let you watch the video!