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THE TRANSMISSION GALLERY
HEMEL HEMPSTEAD (PIMLICO)
| Photos by Martin Brown | Page last updated: 2020-12-13 |
| At the top are the two UHF trough aerials which used to transmit analogue TV. |
| Two sets of band III DAB panels with the UHF DTT panels in between. The upper (79m) band III panels transmit the BBC and London 2 DAB multiplexes. The lower (69m) panels transmit all of the other DAB multiplexes. |
| Three sets of UHF panels used to transmit all of the TV multiplexes, including the local TV mux. |
| The radiation pattern of the UHF TV panels. |
| The two, three element vertical yagis which transmit BBC Three Counties Radio. Ofcom Tx Parameters indicated that the one on the left points north-northwest, while the one on the right points southeast. The reflector element is now completely missing from southeast yagi. |
| The array of slant polarised, 4-element band II yagis which transmit ILR. |
| Viewed from further round the mast. |
| And further round again. I count five yagis in total for ILR. |
| Receive aerials. Twin UHF troughs facing Crystal Palace with a four element band II yagi pointing towards Zouches Farm. |
| The Zouches Farm receive aerial provides the programme feed for BBC Three Counties Radio. |
| The adjacent former Police tower. |
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