MW Offsets Records

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John Faulkner, Skegness
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MW Offsets Records

Post by John Faulkner, Skegness » 07 Mar 2017 12:19

Just found this impressive collection of MW offsets via the MW Offsets Yahoo group. These have been compiled by Peer-Axel Kroeske, DL2LBP, in Handewitt, Germany, using SpectrumLab software.

http://radiovibrations.com/dx/offset/index.php

Tim Bucknall
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Re: MW Offsets Records

Post by Tim Bucknall » 10 Oct 2017 08:01

Thanks for the link
Is there a more up to date mw offsets list?
They used to update it but its 3 years old

Have you looked at the article on measuring mpx offsets on fm? Could Id some weak stuff and bring some surprises about whats permanently available at low levels? I'll give it a try if you will
Could be the new rock n roll!
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John Faulkner, Skegness
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Re: MW Offsets Records

Post by John Faulkner, Skegness » 10 Oct 2017 11:01

Excellent resource. Thanks Tim.

KPC850
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Re: MW Offsets Records

Post by KPC850 » 25 Oct 2017 19:12

One of the BBC R 5Live 909kHz transmitters has recently gone several Hz off, this causing a rapid amplitude flutter when received with other transmitters in the network, would be audible in many areas at night where there is no dominant 909kHz transmitter.
I do not know if its off by + or - ,or which transmitter is to blame?

Here's how it sounds, recorded a few days ago, this posted elsewhere:

https://vocaroo.com/i/s1BbATKdDcQQ

Brookman Spark
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Re: MW Offsets Records

Post by Brookman Spark » 25 Oct 2017 20:13

Looks like Brookmans Park after a check on some remote receivers.

Funny name for a transmitter site if you ask me.

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John Faulkner, Skegness
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Re: MW Offsets Records

Post by John Faulkner, Skegness » 26 Oct 2017 01:04

Sounds like it's drifting too on your recording.

I see three strong carriers on 909: 908.990; 909.000 and 909.008. Is the offending transmitter jumping above and below? Must say it's a bit of a mess.

KPC850
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Re: MW Offsets Records

Post by KPC850 » 01 Nov 2017 19:50

The drifted 909kHz transmitter (it seems to have been Brookmans Park) was back accurately on 909kHz again as of yesterday, ending the annoying rapid flutter effect beat with other 909kHz transmitter carriers.

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