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High pressure causing channel loss through "Inversion"

High pressure does not just bring cold at this time of year, it is causing quite random loss of Freeview and analogue reception.

High pressure does not just bring cold at this time of year, it
Published on by on UK Free TV

There is high pressure over the whole of the UK at the moment, and this causes the Inversion Effect. This is causing people to be missing a single Freeview multiplex, or have terrible analogue reception on a single channel. The problem may come-and-go or last for several days.



For details, please see <img src="data:image/png;base64,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" class="xico" style="vertical-align:text-bottom" alt="www.ukfree.tv link icon"> link iconWhat is the Inversion Effect and why does it effect my Freeview TV reception?.

<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAgMAAABinRfyAAAACVBMVEUAAAD8/vwEAgTo1XnGAAAAAXRSTlMAQObYZgAAADNJREFUCNdjYMAEjKsYGP4xvfnNsIGJmXF/ANPf/w4MTMyMBxiY/v533MC4ioHhHwMuAAAmbgz06BzauwAAAABJRU5ErkJggg==" class="xico" style="vertical-align:text-bottom" alt="www.bbc.co.uk link icon"> link icon







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Dave Lindsay
Monday 23 July 2012 1:11PM

Jim Charters: Perhaps your aerial is too sensitive for the location and supplying an OTT signal:

<img src="data:image/png;base64,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" class="xico" style="vertical-align:text-bottom" alt="www.ukfree.tv link icon" link iconFreeview signals: too much of a good thing is bad for you | ukfree.tv - 10 years of independent, free digital TV advice

J
Jim Charters
Monday 23 July 2012 4:02PM

Dave
Thanks for the reply. Belmont is on top of a the wolds; I live in a low lying area and found it difficult to receive the analogue signal at times and the previous low output digital one almost impossible periodically. To make matters rather worse, the rear of the property faces immediate woodland of about 50m depth (en route to Belmont)! The aerial is a Blakes JBX 32 element. Is this aerial really that sensitive?
JIM

A
Alex
Wednesday 2 January 2013 10:22AM High Wycombe

We have a Samsung 22" smart TV. We have recently been losing the use of all BBC channels including Radio channels intermittently. These were not accessible all yesterday (1st Jan/13) evening and have just returned 9.30am today.We are in south Bucks HP10 8AH

R
robert stevenson
Sunday 28 September 2014 8:44AM

4G interference in Belfast. On RTE 2HD etc rf channel 56.
Most people who have Rte channels in Belfast will have a group CD mast head amplifier , this also in making the 4G signal which is on rf channel 63 wipe out or cause picture breakup on the Rte and normal BBC ,itv freeview channels .
I have changed a few headlamps as they were high gain ,mostly CD 1223 or even the old red CD supreme. I fixed these issues by fitting a Labgear outdoor 4g rejection filter and a CD1213 mast head amp. This should work as the Rte freeview from down south is now a good strong signal . You may not even need a mast head amp it depends on the set top box or tv you are using also which way or type off splitter there may be if the aerials are connected to feed more than one tv.
Also remember the more splitters and joints etc and cheap rf fly leads these cause big problems with reception issues.
Please email me if you have any 4G issues etc and I will try and advise via email. We are the only CAI registered and approved installation company in Newtownabbey and Belfast .
Hope this is helpful.

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For an enhanced Freeview reception
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Most popular LIVE 17:44
Live updates LIVE 17:44
Trends|Faults/Engineering|Box updates
Abergavenny
DAB: BBC National DAB Radio Off A...
Avening
TV Off Air from 14:25 today to 1...
Backbarrow
TV Off Air from 11:15 today to 1...
Bucknell
TV Off Air from 15:19 today to 1...
Creetown
TV Off Air from 04:25 today to 0...
Cwmfelinfach
TV Off Air from 00:11 today to 0...
Greenhill
DAB: BBC National DAB Radio Off A...
Hawkshead
TV Off Air from 09:08 today to 0...
Ivybridge
TV Off Air from 10:22 today to 1...
Kendal Fell
TV Off Air from 11:06 today to 1...
Lisnagarvey
AM: Radio 5 Live Off Air from 10:...
Penny Bridge
TV Off Air from 11:15 today to 1...
Pinwherry
TV Off Air from 10:39 today to 1...
Stranraer
DAB: BBC National DAB Radio Off A...
Trawden
TV Off Air from 10:13 today to 1...
Wattsville
TV Off Air from 00:11 today to 0...
UK Free IconMap of transmitters with faults or engineering
William Hepburn Worldwide Tropospheric Ducting Forecasts Atmosphere interference maps
Twitter LIVE 17:44

Briantist: http://t.co/DBWZNukll4 Ariel Frɑn Unsworth to lead World Service She will also continue to be deputy director of news a
Briantist: http://t.co/Hss6Q28JYo Article Тhe postponement concluded temporarily at least a long period of impassioned debate from
Briantist: http://t.co/uViGCia4vI BBC DAB Phase 4 Help Receiving TV and Radio This phase of national DAB expansion is expected to b
Briantist: http://t.co/DBWZNukll4 Arιel Fran Unsworth to lead World Service She will also continue to be deputy director of news a
Briantist: Dearest, beloved @guardian why have you made the #android app keep reseting the comments to the top. So very hard to read on a treadmill.
Briantist: http://t.co/Hss6Q28JYo Artιcle The postponement concluded temporarily at least a long period of impassioned debate from
Briantist: http://t.co/uViGCia4vI BBС DAB Phase 4 Help Receiving TV and Radio This phase of national DAB expansion is expected to
Briantist: Read this! You know you want to... is out! http://t.co/I2KcrfovOv
Briantist: http://t.co/J9WSiAA60v Оne of the reasons that Freeview does not reshuffle the channel numbers is because there is a lot
UDontNeedCable: You Don't Need Cable! is out! http://t.co/qTs5kgOWQl Stories via @freebargain @GeorgeBakhos @Briantist

Click here to follow Briantist on Twitter