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| moving qrm on 12 11 and 10 meters | |
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| Tweet Topic Started: Monday, 21. September 2015, 21:12 (768 Views) | |
| Phil busta bus | Monday, 21. September 2015, 21:12 Post #1 |
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Hi. I've got a nasty qrm problem, and it moves.Earlier today I had it on t5, but now it's moved. Moved outside to my shed to check everything out, switching power supply, cutting out long 213 run etc etc and it's now repeating every 0.070 MHz. Very very odd tbh as I've not experienced it before. I live around 400 meters from rail lines and I'm wondering if there using AC gen sets to power lighting and tools etc. Any ideas??. Doesn't sound like the plt interference I've heard on youtube. Thankyou.
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| Phil busta bus | Tuesday, 22. September 2015, 00:07 Post #2 |
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Done a video on youtube. hopefully this link works https://www.youtube.com/watch?v=lpamACFZEDs |
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| 26PS001 | Tuesday, 22. September 2015, 11:34 Post #3 |
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26 Charlie Tango 1523
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Try the radio on a battery first to rule out the electrics |
Charlie Tango member 26CT1523 since 12/11/14 Mark (252) thecobraman tribute youtube channel https://www.youtube.com/channel/UC-jDebaO5BGsAjdy3pNiG7Q | |
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| Nubster | Tuesday, 22. September 2015, 11:59 Post #4 |
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26 Charlie Tango 050
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Phil I've been getting a lot of moving QRM over the bands myself and yep done the same as you run it off a battery but the same to no avail still got it , but just a thought on your problem mate have you seen Delboys video cos he has the same radio https://youtu.be/qURDO2DfW2Q cos his done the same as what yours is doing in the vid and he found out his had a problem it even done it with no antenna plugged in silly to ask but have you tried without a antenna in the same as Del did to see if its doing it still
Edited by Nubster, Tuesday, 22. September 2015, 12:17.
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Tuesday, 22. September 2015, 13:28 Post #5 |
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Will try that bud. Thanks very much. Will let you know. |
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| Nubster | Tuesday, 22. September 2015, 13:38 Post #6 |
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26 Charlie Tango 050
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I think his one it just sort of started the problem , I know he said he got it sorted by President under warranty, if yours does the same without the antenna connected it might worthwhile giving him a P.M and see what he done about his Good luck mate Edited by Nubster, Tuesday, 22. September 2015, 13:39.
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Tuesday, 22. September 2015, 13:39 Post #7 |
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Will do tonite. Thank and will post results. |
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| Nubster | Tuesday, 22. September 2015, 14:16 Post #8 |
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26 Charlie Tango 050
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Phil here is some of my noises I get now and then LOL https://youtu.be/Vm0UQkQDtK8 https://youtu.be/bP929cMBfwU https://youtu.be/02Kv04ZiiLc |
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Tuesday, 22. September 2015, 19:20 Post #9 |
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Well one test complete, it's not the grant. Flat line with plug removed. Getting a gamma one sent out tonite so I may try and RF gain it. My preamp works opposite and I can negative 30db it out, and if I switch to local it's nowhere on the scale. Will get the battery off the car tommorow and see how it looks. |
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| Nubster | Wednesday, 23. September 2015, 06:24 Post #10 |
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26 Charlie Tango 050
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OK Phil keep us informed mate , be nice to know what is causing ya interference P.S I hate Pre Amps with a passion always have done LOL |
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Wednesday, 23. September 2015, 20:26 Post #11 |
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Lol Nubster, there not up to much on these bands. Anyway Battery test complete and its still there. Video on the end of this is really clear now regarding they type of noise etc, and shows clearly how no filtering from the HAM 10 meter band is present. Managed to get onto ZIGGYS net tonight only by the good fortune he choose a channel unaffected. May need to build a small direction finding Antenna for this so I can RF GAIN it down. Anyway Heres the video https://www.youtube.com/watch?v=ZwwYl9nHxSg
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| Nubster | Wednesday, 23. September 2015, 20:57 Post #12 |
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26 Charlie Tango 050
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Phil its strange that its still up in the Ham bands cos there normally looked after and filtered more than the CB bands , be really interested if you do find out where its coming from cos as it on the Ham bands it gotta be something strong , Phil are you licence ham by any chance ? cos if you are you could actully get Ofcom to investigate it as it goes in to the Ham bands just dont mention CB to them or they wont be interested LOL |
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Wednesday, 23. September 2015, 21:39 Post #13 |
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Nope not yet lol. Over 28 my set magically changes into a scanner. I just sit and take note tbh. I know right from wrong lol, have a moral compass and tbh hardly ever hear anything. May be forced into it now though. |
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| Mark in Essex | Thursday, 24. September 2015, 07:00 Post #14 |
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26 Charlie Tango 037
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Big signals Phil...gotta be real close I reckon........ annoying I know mate ...Had Ofcom here 3 times in the past 5 years to eliminate PLT noises for me.
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[][img][/img][/url] https://www.youtube.com/user/26TANGOMIKE037/videos Nembutol numbs it all But I prefer alcohol | |
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| Phil busta bus | Thursday, 24. September 2015, 14:22 Post #15 |
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Setting the car up mark to RF using the preamp in negative mode. Failing that I'll knock a loop up and find them that way. I'm not known locally for takING things lying down bud
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| Phil busta bus | Thursday, 24. September 2015, 20:59 Post #16 |
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Very odd this. It's gone. Cannot work this out. 9nly plausible explanation is the railway maintainence crew (which I noted were missing on there carpark) are not working. Very strange |
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| High Voltage | Thursday, 24. September 2015, 21:37 Post #17 |
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108 Charlie Tango 054
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I've had heavy qrm on uk40 and midband tonight on most channels. The needle was flickering constantly between 7 and 30+ making them pretty much unusable. A mate half a mile away wasn't getting it so it must have been something very close by. He did however have the same problem a few nights ago at his place. |
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[marq=left]Sorry sir, I've rolled the Land Rover over, over.........[/marq] | |
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| Phil busta bus | Thursday, 24. September 2015, 22:05 Post #18 |
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Humm odd int it. Electromagnetic fields perhaps?. |
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| Nubster | Thursday, 24. September 2015, 22:12 Post #19 |
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26 Charlie Tango 050
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Been getting the same Phil past couple of weeks my interference comes and goes at different times of the day and night before the lazt 2weeks it was OK its strange its appeared recently and Dave ( Lagerland ) his only 1 mile from me and he aint had any when I have mine , could be something country wide that someone is testing , last time we had something like this it was when they was testing g4 for the mobiles phone |
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Life is too short, so ave a laugh now n then never know you might like it | |
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| Phil busta bus | Friday, 25. September 2015, 20:36 Post #20 |
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My home town bud has one of the largest transformer testing rigs ever built situated in it and it must produce some rf lol. On a night you can see arcing coming from the place. Roads are closed and lamp post lifted out when these things are moved by road. Massive!!. Must take its toll on radio. |
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annoying I know mate ...Had Ofcom here 3 times in the past 5 years to eliminate PLT noises for me.

8:47 AM Jul 11