UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Television and Video

Notices

Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

Reply
 
Thread Tools
Old 10th Dec 2021, 4:11 pm   #841
dglcomp
Heptode
 
Join Date: Jul 2016
Location: Portland, Dorset, UK.
Posts: 888
Default Re: 405-Line VHF Aerials 2013 to the present day.

One of the TV's upstairs at what was my Grans would sort of work on digital with just the aerial lead connected and going nowhere (Bushfield Rd. Crewkerne, receiving Mendip) and in another room a loop antenna fixed to an old Fidelity CTV could receive digital before switchover.
I also remember going to an engineering training place on the Granby in Weymouth/Chickerell and whilst waiting to be picked up watching TV on an Amstrad TV/VCR with no aerial socket! (it had broken off), I know that the Weymouth transmitter in Wyke is very strong there.
dglcomp is offline   Reply With Quote
Old 11th Dec 2021, 12:42 pm   #842
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,601
Default Re: 405-Line VHF Aerials 2013 to the present day.

We used the Wyke transmitter here on the east side of Charmouth for a while until they put in a repeater on Stonebarrow hill. We had a problem with it though, at certain times of the day BBC2 would fade out for a while, we came to the conclusion that it was 'tidal fading' at certain tide heights you would get an anti phase signal reflected off the sea.

Peter
Peter.N. is offline   Reply With Quote
Old 14th Feb 2022, 6:38 pm   #843
G6Tanuki
Dekatron
 
G6Tanuki's Avatar
 
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,261
Default Re: 405-Line VHF Aerials 2013 to the present day.

Seen yesterday in Bristol, on the roof of what is now a Polish 'corner-shop'.

The short-ish BI single-dipole, and orientation of the BIII elements [which couple to the BI dipole] suggests it was once tasked with receiving BBC from Wenvoe and ITV from St.Hilary from across the Bristol Channel.
Attached Thumbnails
Click image for larger version

Name:	snap.jpg
Views:	212
Size:	21.5 KB
ID:	251852  
__________________
I can hear an Owl.
G6Tanuki is offline   Reply With Quote
Old 14th Feb 2022, 6:50 pm   #844
Mr Hoover
Hexode
 
Mr Hoover's Avatar
 
Join Date: Jan 2007
Location: Faro, Portugal
Posts: 272
Default Re: 405-Line VHF Aerials 2013 to the present day.

Doesn't look like it was in one of the more
difficult reception areas in Bristol.
Mr Hoover is offline   Reply With Quote
Old 15th Feb 2022, 10:34 am   #845
Hybrid tellies
Nonode
 
Hybrid tellies's Avatar
 
Join Date: Jan 2004
Location: 1966-1976 Coverack in Cornwall and Helston Cornwall. 1976-present Bristol/Bath area.
Posts: 2,973
Default Re: 405-Line VHF Aerials 2013 to the present day.

It looks like this was aerial is in a good reception spot for 405 line TV reception. BBC1 from Wenvoe on ch5 and HTV on ch10 from St Hilary.
On the whole 405 line reception from the transmitters, both located in South Wales, across Bristol was pretty good. I think the bad or black spots were covered by cable TV.
__________________
Simon
BVWS member
Hybrid tellies is offline   Reply With Quote
Old 15th Feb 2022, 5:41 pm   #846
KeithsTV
Nonode
 
KeithsTV's Avatar
 
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,580
Default Re: 405-Line VHF Aerials 2013 to the present day.

Spotted this "new" installation last Sunday in the soon to be opened 50s section at the Beamish Museum.

Are they hoping for the resumption of 405 line transmissions?

Keith
Attached Thumbnails
Click image for larger version

Name:	Beamish 50s.jpg
Views:	256
Size:	36.7 KB
ID:	251951  
KeithsTV is offline   Reply With Quote
Old 15th Feb 2022, 5:56 pm   #847
G6Tanuki
Dekatron
 
G6Tanuki's Avatar
 
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,261
Default Re: 405-Line VHF Aerials 2013 to the present day.

Quote:
Originally Posted by Hybrid tellies View Post
It looks like this was aerial is in a good reception spot for 405 line TV reception. BBC1 from Wenvoe on ch5 and HTV on ch10 from St Hilary.
On the whole 405 line reception from the transmitters, both located in South Wales, across Bristol was pretty good. I think the bad or black spots were covered by cable TV.
Yes, given that a significant part of the signal-path was across water, I would expect good reception, though tidally-induced multipath could perhaps be an issue?

"Telly's on the blink again".... "No, that's the Severn BoreĀ¬!"
__________________
I can hear an Owl.
G6Tanuki is offline   Reply With Quote
Old 16th Feb 2022, 10:36 am   #848
Hybrid tellies
Nonode
 
Hybrid tellies's Avatar
 
Join Date: Jan 2004
Location: 1966-1976 Coverack in Cornwall and Helston Cornwall. 1976-present Bristol/Bath area.
Posts: 2,973
Default Re: 405-Line VHF Aerials 2013 to the present day.

I think it also helped that the Avon Gorge or the River Avon valley went the right direction enabling both VHF 405 line signals from St Hilary and Wenvoe to propagate into and across Bristol.
__________________
Simon
BVWS member
Hybrid tellies is offline   Reply With Quote
Old 16th Feb 2022, 12:02 pm   #849
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,601
Default Re: 405-Line VHF Aerials 2013 to the present day.

Quote:
Originally Posted by KeithsTV View Post
Spotted this "new" installation last Sunday in the soon to be opened 50s section at the Beamish Museum.

Are they hoping for the resumption of 405 line transmissions?

Keith
Only on Band 111 apparently. The other one is VHF radio is it not? I take it that is in the '50s town. We will be up there later in the year.

Peter
Peter.N. is offline   Reply With Quote
Old 16th Feb 2022, 11:40 pm   #850
KeithsTV
Nonode
 
KeithsTV's Avatar
 
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,580
Default Re: 405-Line VHF Aerials 2013 to the present day.

It could be but the nearby Pontop Pike Band 1 transmitter was on channel 5 and horizontally polarised.

The ITV transmitter was at Burnhope, also not too far away, and was opened in 1959 so that house could be dated to the very late 50s.

We're planning to return sometime in May to see the new section.

Keith
KeithsTV is offline   Reply With Quote
Old 17th Feb 2022, 11:03 am   #851
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,601
Default Re: 405-Line VHF Aerials 2013 to the present day.

Yes it occurred to me after I wrote that could be the case. In Kent we were on channel 1 Alexandra Palace then Crystal palace and our dipoles were nearly 11' long so never came across Ch5 or horizontal band 1 antennas.

Thinking about it there is only about 10 mhz difference between the top of band 1 and the bottom of band 2 so could be either. We will see what's connected to the other end of it when we go.

Peter
Peter.N. is offline   Reply With Quote
Old 17th Feb 2022, 7:49 pm   #852
KeithsTV
Nonode
 
KeithsTV's Avatar
 
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,580
Default Re: 405-Line VHF Aerials 2013 to the present day.

It doesn't look as if there's a cable connected to either aerial. Perhaps it's still Work in Progress!

Keith
KeithsTV is offline   Reply With Quote
Old 17th Feb 2022, 7:58 pm   #853
ntscuser
Hexode
 
ntscuser's Avatar
 
Join Date: Mar 2013
Location: Coventry, West Midlands, UK.
Posts: 280
Default Re: 405-Line VHF Aerials 2013 to the present day.

The larger of the two aerials appears to be rotated thorugh forty-five degrees which I would expect if it was a FM aerial?
__________________
Classic TV Show Theme Tunes
ntscuser is offline   Reply With Quote
Old 3rd May 2022, 12:20 am   #854
dub_boi
Diode
 
Join Date: Dec 2017
Location: Dublin, Republic of Ireland.
Posts: 5
Default Re: 405-Line VHF Aerials 2013 to the present day.

When I was a young child, the skyline of Dublin was crowded with enormous aerials, typically a 5-element Band I pointing north for BBC1 from Divis and a 12-element Band III pointing east for HTV Wales from Arfon. After restrictions on cable TV were relaxed in 1974, 'piped' tv quickly spread across the city and such aerials became largely redundant.
There are a few still around, typically now toothless affairs with most elements missing. It was therefore a pleasant surprise to find a relatively intact example on the roof of a 1960s-era nursing home recently in the north Dublin suburbs. In this case, the Band III is pointing north for UTV from Black Mountain, which possibly offered better reception at this particular location.
Attached Thumbnails
Click image for larger version

Name:	DSC00016.jpg
Views:	220
Size:	31.5 KB
ID:	256501  
dub_boi is offline   Reply With Quote
Old 4th May 2022, 9:42 am   #855
Rich Woods
Hexode
 
Rich Woods's Avatar
 
Join Date: Sep 2017
Location: Ceredigion, Wales, UK.
Posts: 277
Default Re: 405-Line VHF Aerials 2013 to the present day.

Cool
Rich Woods is offline   Reply With Quote
Old 4th May 2022, 11:21 am   #856
marceljack
Hexode
 
Join Date: Apr 2021
Location: Paris, France.
Posts: 256
Default Re: 405-Line VHF Aerials 2013 to the present day.

Was it really for reception of british transmitters ?
I thought the 405 lines TXs were all in vertical polarisation ...
marceljack is offline   Reply With Quote
Old 4th May 2022, 11:35 am   #857
Mr Hoover
Hexode
 
Mr Hoover's Avatar
 
Join Date: Jan 2007
Location: Faro, Portugal
Posts: 272
Default Re: 405-Line VHF Aerials 2013 to the present day.

Quote:
Originally Posted by marceljack View Post
Was it really for reception of british transmitters ?
I thought the 405 lines TXs were all in vertical polarisation ...
No, not all.Ch 1 and Ch 9 Belfast were horizontal
which these were aimed at.
East Anglia was a horizontal area as was the Northeast.
A lot of the band 1 low power relays were horizontal as well.
Mr Hoover is offline   Reply With Quote
Old 4th May 2022, 4:30 pm   #858
dub_boi
Diode
 
Join Date: Dec 2017
Location: Dublin, Republic of Ireland.
Posts: 5
Default Re: 405-Line VHF Aerials 2013 to the present day.

Quote:
Originally Posted by marceljack View Post
Was it really for reception of british transmitters ?
I thought the 405 lines TXs were all in vertical polarisation ...
Arfon on Ch 10 was also horizontally polarised, and such aerials were were common in Dublin. As a kid I remember the first time I saw vertically polarised aerials directed at Brougher Mountain on ch5 and thinking 'why are they the wrong way around?'!.
dub_boi is offline   Reply With Quote
Old 4th May 2022, 4:49 pm   #859
Rich Woods
Hexode
 
Rich Woods's Avatar
 
Join Date: Sep 2017
Location: Ceredigion, Wales, UK.
Posts: 277
Default Re: 405-Line VHF Aerials 2013 to the present day.

I think the amount of survivals of large 405 line TV aerials is a testament to the quality of installation work at the time. Definitely not bodge it & scarper!
Rich Woods is offline   Reply With Quote
Old 4th May 2022, 6:00 pm   #860
paulsherwin
Moderator
 
paulsherwin's Avatar
 
Join Date: Jun 2003
Location: Oxford, UK
Posts: 28,462
Default Re: 405-Line VHF Aerials 2013 to the present day.

Quote:
Originally Posted by dub_boi View Post
When I was a young child, the skyline of Dublin was crowded with enormous aerials, typically a 5-element Band I pointing north for BBC1 from Divis and a 12-element Band III pointing east for HTV Wales from Arfon. After restrictions on cable TV were relaxed in 1974, 'piped' tv quickly spread across the city and such aerials became largely redundant.
There are a few still around, typically now toothless affairs with most elements missing. It was therefore a pleasant surprise to find a relatively intact example on the roof of a 1960s-era nursing home recently in the north Dublin suburbs. In this case, the Band III is pointing north for UTV from Black Mountain, which possibly offered better reception at this particular location.
There were still some huge Band I arrays south of Dublin when I was last in the Republic in the 90s, clearly visible from the DART train. They were VP and pointing east, presumably working Holme Moss which was quite a stretch. I imagine they'll all have fallen down by now.

You're right, all the pubs seemed to be using cable by then, but the hotel at Dublin airport seemed to be getting a UHF off air feed from Divis for some reason.
paulsherwin is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 7:05 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2024, Paul Stenning.