| Rosemarkie | |
| Map Name: | Scotland Highland |
| Coordinates: | 57.634°N -4.0743°W |
| Location: | Rosemarkie, Highland |
| Height: | 110m (360feet) |
| Gridref: | NH762623 |
| Built: | 1957 |
| Bbc: | BBC Scotland |
| Itv: | STV North |
The Rosemarkie transmitting station is a broadcasting and telecommunications facility, situated close to the town of Rosemarkie, Scotland, in Highland . It consists of a 110m (360feet) high guyed steel lattice mast erected on land that is itself about 210 m above sea level only a few hundred metres from the coast of the Moray Firth. It is owned and operated by Arqiva.
Coverage includes the areas around the Moray Firth, in the Highland region of Scotland, including up to Helmsdale in the north, Elgin to the east, Dingwall to the west and the northern shores of Loch Ness to the south. This also includes the city of Inverness.
The station was built in 1957 by the BBC to bring BBC Television to North East Scotland for the first time. The 405-line monochrome transmissions were on channel 2, Band I VHF.
When colour UHF television began in 1970, the site was chosen over the nearby IBA owned station at Mounteagle to carry these broadcasts. Both the UHF and VHF services continued in tandem until 1985, when VHF television was discontinued in the UK.
Digital switchover was completed at Rosemarkie. All analogue television was switched off and the new post-DSO multiplexes took over the analogue frequencies plus a few new ones.
| Frequency | UHF | kW[1] | Operator |
|---|---|---|---|
| 39 | 20 | Digital 3&4 | |
| 40 | 10 | Arqiva B | |
| 42 | 20 | BBC B | |
| 43 | 10 | SDN | |
| 45 | 20 | BBC A | |
| 46 | 10 | Arqiva A | |
| Frequency | kW | Service | |
|---|---|---|---|
| 89.6 MHz | 10 | BBC Radio 2 | |
| 91.8 MHz | 10 | BBC Radio 3 | |
| 94.0 MHz | 10 | BBC Radio Scotland | |
| 99.2 MHz | 10 | BBC Radio 1 | |
| 103.6 MHz | 10 | BBC Radio 4 | |
| 104.9 MHz | 10 | BBC Radio nan Gaidheal |
405-line BBC television arrived in the northeast of Scotland.
BBC Two UHF colour television commenced.
| Frequency | VHF | UHF | kW | Service | |
|---|---|---|---|---|---|
| 2H | — | 20 | BBC1 Scotland | ||
| — | 45 | 100 | BBC2 Scotland |
BBC One and ITV UHF colour television commenced.
| Frequency | VHF | UHF | kW | Service | |
|---|---|---|---|---|---|
| 2H | — | 20 | BBC1 Scotland | ||
| — | 39 | 100 | BBC1 Scotland | ||
| — | 45 | 100 | BBC2 Scotland | ||
| — | 49 | 100 | Grampian Television |
The UK's fourth UHF television channel started up.
| Frequency | VHF | UHF | kW | Service | |
|---|---|---|---|---|---|
| 2H | — | 20 | BBC1 Scotland | ||
| — | 39 | 100 | BBC1 Scotland | ||
| — | 42 | 100 | Channel 4 | ||
| — | 45 | 100 | BBC2 Scotland | ||
| — | 49 | 100 | Grampian Television |
The VHF 405-line system was discontinued across the UK, and from that point for the next 23 years, television from Rosemarkie was the originally-intended four channels on UHF only.
| Frequency | UHF | kW | Service | |
|---|---|---|---|---|
| 39 | 100 | BBC1 Scotland | ||
| 42 | 100 | Channel 4 | ||
| 45 | 100 | BBC2 Scotland | ||
| 49 | 100 | Grampian Television |
The initial roll-out of digital television involved running the digital services interleaved (and at low ERP) with the existing analogue services.
| Frequency | UHF | kW | Service | System | |
|---|---|---|---|---|---|
| 39 | 100 | BBC One Scotland | PAL | ||
| 41- | 10 | SDN (Mux A) | DVB-T | ||
| 42 | 100 | Channel 4 | PAL | ||
| 44- | 10 | BBC (Mux B) | DVB-T | ||
| 45 | 100 | BBC Two Scotland | PAL | ||
| 46+ | 8 | Arqiva (Mux C) | DVB-T | ||
| 47+ | 10 | BBC (Mux 1) | DVB-T | ||
| 49 | 100 | STV (North) (Grampian) | PAL | ||
| 50+ | 8 | Arqiva (Mux D) | DVB-T | ||
| 51+ | 10 | Digital 3&4 (Mux 2) | DVB-T |
Digital Switchover commenced at Rosemarkie, with analogue BBC Two being switched off on channel 45 and BBC Mux 1 being switched off on channel 47+. Channel 45 was reused by the new BBC A multiplex at full post-DSO power (20 kW) and using 64-QAM with 8k carriers.
| Frequency | UHF | kW | Service | System | |
|---|---|---|---|---|---|
| 39 | 100 | BBC One Scotland | PAL | ||
| 41- | 10 | SDN (Mux A) | DVB-T | ||
| 42 | 100 | Channel 4 | PAL | ||
| 44- | 10 | BBC (Mux B) | DVB-T | ||
| 45 | 20 | BBC A | DVB-T | ||
| 46+ | 8 | Arqiva (Mux C) | DVB-T | ||
| 49 | 100 | STV (North) | PAL | ||
| 50+ | 8 | Arqiva (Mux D) | DVB-T | ||
| 51+ | 10 | Digital 3&4 (Mux 2) | DVB-T |