new qrn source

Noise and interference issues?
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Tim Bucknall
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Location: Congleton, often in the Peak District, sometimes in Poland or Kresy
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new qrn source

Post by Tim Bucknall » 24 Apr 2016 21:51

new ignition type interference appeared on VHF/UHF this weekend

the SDR in particular really cannot handle it, so if the qrn doesn't go, I will be limited to very strong e skip at home on the Icom 9500 and will have to go mobile for everything else

the 9500's noise blanker will switch on in fm mode but has no effect


should have new mobile set up by the end of the week but that's for another thread,
Home:Burkhardt Reuter RDR54D1 SDR V.415,
+ CLP 5130 Log P ant

Mobile: Comm Radio CR-1 + Sharman Skyscan ant, Pira P275

Andrew Webster,Wigan
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Re: new qrn source

Post by Andrew Webster,Wigan » 25 Apr 2016 11:27

Oh that's not good Tim hope it goes as we all face this problem at some time.

Andy
Receiving equipment: 2 Sony ST-S311, 1 Sony ST-SE520, 1 Sony ST-SE700 2 crossed FM 5s rotatable, 1 homemade FM 3 horizontal beaming S/E, 1 vertical FM 3 fixed beaming at Ireland, 2 element band 1.

Tim Bucknall
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Re: new qrn source

Post by Tim Bucknall » 07 May 2016 11:05

thank heavens its gone, very odd it was just for one weekend
Home:Burkhardt Reuter RDR54D1 SDR V.415,
+ CLP 5130 Log P ant

Mobile: Comm Radio CR-1 + Sharman Skyscan ant, Pira P275

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John Faulkner, Skegness
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Re: new qrn source

Post by John Faulkner, Skegness » 07 May 2016 12:51

It's the same here Tim. Had some fairly strong noise wipe out the FM band here this morning. I could only hear Belmont and Tacolneston easily. Peterborough had some noise. It's beginning to weaken now.

Different days bring different levels of interference and from different sources. I am relieved that none have been long-lasting so far.

Medium wave is worse, but a choke is keeping things quiet for now.

Have you ever driven around a town and heard how much MW and band 2 interference there is these days? My home location happens to be in one of the electrically quietest parts of town - and it ain't always that quiet.

satnipper
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Re: new qrn source

Post by satnipper » 07 May 2016 13:37

JF - yes I have and it's scary.

Any minute our personal hobby could be wiped out by a cheap Chinese piece of crap power supply or BT's VDSL.

Stuart

Looks like profanity filter is back! C-r-a-p

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Julian Hardstone
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Re: new qrn source

Post by Julian Hardstone » 07 May 2016 17:16

Speaking of things being suddenly wiped out, I notice there is a lot of lightning strikes in the English Midlands this afternoon, and I went searching for real-time sferics maps.
http://www.lightningmaps.org/ is new on me: The delay time is less than 1.5 sec.

I have selected to have sound enabled so it clicks with each strike, and you can select to show the thunder sound-front displayed: zoomed to close-in you see how the thunder is heard in the surrounding area

You only get clicks for the displayed area, so you can zoom to your locality and leave it running, then if you hear clicks you know it must be getting close :o

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Julian Hardstone
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Re: new qrn source

Post by Julian Hardstone » 08 May 2016 17:32

If that link gives the language as German and you want English, use http://www.lightningmaps.org/realtime?lang=en

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