UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - 405-Line VHF Aerials 2013 to the present day.

Nuvistor · 5th Jan 2016, 7:22 pm

The info about the ERP looks ambiguous, the 1967 BBC doc states a much lower ERP than the WRTH of the same year even allowing for the directional aerial.
The BBC 1972 quotes the higher ERP so I presume they increased the power at some time.

I could be wrong but I do not remember the ch 12 transmitter being on the 450ft mast only on the 1000ft one. the 1000ft mast came into service in 1965, ch 12 came into full service according to the BBC doc March 1966, so I presume it was with the specification in that document.

A couple of years ago I had a walk up to the mast at Winter Hill, very impressive standing near the base and looking up. A walk to be done in summer and with warm clothing, gets cold and windy on that moor. About a 5 mile return walk from Wallsuches Horwich, Tarmac road all the way but if you take a car you would need to leave it about a mile from the mast.
Warning signs in winter about falling ice from the mast and stays.

5th Jan 2016, 7:22 pm	#339
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,433	Re: 405-Line VHF Aerials 2013 to the present day. The info about the ERP looks ambiguous, the 1967 BBC doc states a much lower ERP than the WRTH of the same year even allowing for the directional aerial. The BBC 1972 quotes the higher ERP so I presume they increased the power at some time. I could be wrong but I do not remember the ch 12 transmitter being on the 450ft mast only on the 1000ft one. the 1000ft mast came into service in 1965, ch 12 came into full service according to the BBC doc March 1966, so I presume it was with the specification in that document. A couple of years ago I had a walk up to the mast at Winter Hill, very impressive standing near the base and looking up. A walk to be done in summer and with warm clothing, gets cold and windy on that moor. About a 5 mile return walk from Wallsuches Horwich, Tarmac road all the way but if you take a car you would need to leave it about a mile from the mast. Warning signs in winter about falling ice from the mast and stays.