W3DAK
| Joined: | Mon, Jan 16th 2012, 00:25 | Roles: | N/A | Moderates: | N/A |
Latest Topics
| Topic | Created | Posts | Views | Last Activity |
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| 2M Interference--US Army JLENS Project | Jan 8th 2015, 21:13 | 10 | 9,180 | on 28/10/15 |
Latest Posts
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| 2M Interference--US Army JLENS Project | W3DAK | on 1/3/15 |
| There were 2 frequencies I heard those tones very clearly on using a scanner. One was 138.400 MHz and the other was 149.400 MHz. The strange thing is they seem to be changing the frequencies from time to time as sometimes I hear the interference but cannot track down what frequency it is on exactly with the equipment I have. Dave KB3WYD No other info at this time. |
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| 2M Interference--US Army JLENS Project | W3DAK | on 8/1/15 |
| Has anyone in the Baltimore, MD. area experienced Multiple tones being generated all over the 2 Meter Band especially on Repeaters while they are transmitting at the higher end of the band. I first heard it on my External Speakers hooked up to my Kitchen TV, The TV was off and I was like WHAT THE HECK... I NEVER heard that before. What is this noise. I later went into the Mobile and heard it on 2 Meters. I then went into the house and tracked it down as best I could. I believe that the US Army JLENS "Blimp" (technically called an Aerostat) is generating these tones around 149.400- 149.500 MHz and should be fairly strong for quite a few miles as it is tethered at 10,000 FT. I can only hear these tones when it is aloft in the air. These tests are supposed to last for 3 years during good weather conditions. That is going to be awful for using 2 Meters around here at least. If you would like to read more about it.....Type in JLENS in a Google search bar. There are plenty of articles about them. Dave KB3WYD |
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