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All posts by Mark Fletcher

Below are all of Mark Fletcher's postings, with the most recent are at the bottom of the page.


Trish,Doncaster.One indicator is the different Look North evening news bulletins.From Emley Moor it will be Christa Ackroyd/Harry Gration covering much of Yorkshire and the North Midlands,while from Belmont it will be Peter Levy covering East Yorkshire and Lincolnshire plus North Norfolk and Goole area of southern North Yorkshire.
As far as Emley Moor is concerned there are no problems,plus as far as i am aware there are too no problems reported at Belmont,although where i am located the 50 kw SDN multiplex on frequency 30 from Belmont normally 100% signal quality and 69% signal strength is currently pixellating between 72-94% signal quality and 61-63% signal strength.
Try resetting your affected digital freeview TV by unplugging the aerial/or aerial lead then perform a full auto scan without the aerial to blank out the previous memory then reconnect the aerial/or aerial lead back into the affected appliance as such then rescan,this time manually if this allows.
The Emley Moor multiplexes are BBCA on frequency 47,D3+4 on frequency 44,BBCB (HD) on frequency 41,SDN on frequency 51,ArqA on frequency 52 and ArqB on frequency 48.
The Belmont multiplexes are BBCA on frequency 22,D3+4 on frequency 25,BBCB (HD) on frequency 28,SDN on frequency 30,ArqA on frequency 53 and ArqB on frequency 60.
However if you receive from both Emley Moor and Belmont from your same aerial bear in mind the public service broadcast (PSB) multiplexes,BBCA,D3+4 and BBCB (HD) will duplicate in the 800's channels list,but the commercial (COM) multiplexes,SDN,ArqA and ArqB on the other hand will not duplicate in the 800's channels list as both Emley Moor and Belmont are both now fully digitally switched (TV only).
Keep updating with the outcome i suggested on this useful forum,one of the regulars on here Dave Lindsay who resides in Doncaster himself im sure will provide his own very valuable input as such !

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M
Quest
Tuesday 7 August 2012 11:40PM
Halifax

Perhaps Briantist the site owner will possibly ban users who abuse this valuable site with derogatory expletives deletives !

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M
Freeview reception - all about aerials | Installing
Wednesday 8 August 2012 8:57PM
Halifax

John Collis.No getting a new group W wideband aerial on an all group A transmitter such as Rowridge in a poor/marginal reception area gives poor aerial performance generally as group W wideband aerials are less sensitive to the group A frequencies and more so especially on all group A masts (ie-all 6 or more multiplexes on group A frequencies between 21-37).If your current aerial is a group A (red tipped one) type and it performs well there is absolutely no need to change it to a group W wideband,only switch the polarity from horizontal to vertical to achieve better results.
The only time that group W wideband aerials can be used on any all group A masts whether it be a main transmitter or relay station is if you reside in a strong to medium signal area from abode to mast at a distance of up to 15 miles (up to 10 miles in built up areas) with clear line of sight,anything above 15 miles or more (above 10 miles in urban areas) then either a group K aerial (up to 30 miles) or a group A antenna (beyond 30 miles),never a group W wideband aerial beyond 15 miles (or beyond 10 miles in urban localities) on an all group A mast.

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Freeview reception - all about aerials | Installing
Wednesday 8 August 2012 9:01PM
Halifax

It should actually imply even less sensitive especially on all group A masts on the fourth and fifth line of my above text i just typed.

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Trish,Doncaster.No problem whatsoever,glad to be of assistance to you !


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M
I am missing a transmission multiplex?
Thursday 9 August 2012 12:58PM
Halifax

Kev,Chippenham.I would look up inversion effect as a likely candidate for your recent difficulty as such.

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Freeview reception - all about aerials | Installing
Thursday 9 August 2012 1:28PM
Stevenage

Adrian Whittemore.Stevenage,SG2 9BE.
You have a varied choice here.For the Hemel Hempstead 2kw vertically polarised major relay which carries all six multiplexes a semi-wideband group E aerial (coloured brown at its tips) preferably a Yagi 18E will suffice.However for the Crystal Palace 200kw horizontally polarised main transmitter also carrying all six multiplexes a group A aerial (red coloured tips) preferably a Yagi 18A or X-Beam 16A for wee extra gain,should only be used or a semi-wideband group K aerial (grey coloured tips) can be used as an alternative.Dont use group W wideband aerials (tipped black) on all group A Crystal Palace transmitter at your location which is officially a poor signal area.One other alternative is to consider two diplexed aerials,a group A (or group K) horizontally polarised aerial facing Crystal Palace and a group E vertically polarised aerial facing Hemel Hempstead using a channel 38 diplexer.Look up the ATV (Aerials and Television) of Sheffield website,they are IMHO the No1 aerial retailers in the UK.They are the best,forget the rest.

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Freeview reception - all about aerials | Installing
Thursday 9 August 2012 1:30PM
Halifax

Correction to my above post.My location is in Halifax not Stevenage.Apologises for my wee error !

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Llandinam (Powys, Wales) Freeview Light transmitter
Thursday 9 August 2012 3:28PM
Halifax

Gail Gwesyn-Pryce.I would look up inversion effect as a likely cause of your predicament as such.
You mentioned it being sunny,well areas of high pressure (most of the time) can lead to reception playing up and occasionally picking up alien transmissions (not the ET type) so check now and again between 21-68/9 frequencies of any anomolies.

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M
Llandinam (Powys, Wales) Freeview Light transmitter
Thursday 9 August 2012 3:31PM
Halifax

Then again check the Transmitter Engineering text on Thursday 9 August 2012,2.01pm immediately below your text,Gail too !

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