Map key

The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.

Union Mills (IoM) transmitter Freeview broadcasts

If you have any kind of Freeview fault, follow this Freeview reset procedure first.

Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below. The rating shown takes in account the output power level and the various Freeview transmission modes and do not indicate an ongoing fault.

Mux	Effective power level, aerial position	Rating	Mode	Watts
PSB1 BBCA	vertical	Maximum	64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2	3
	1 BBC One North West, 2 BBC Two England, 7 BBC Three, 9 BBC Four, 70 CBBC Channel, 71 CBeebies, 80 BBC News, 81 BBC Parliament, 301 301, plus 12 others 200 BBC Red Button, 700 BBC Radio 1, 701 BBC 1Xtra, 702 BBC Radio 2, 703 BBC Radio 3, 704 BBC Radio 4, 705 BBC Radio 5 Live, 706 BBC Radio 5 Live Sports Extra, 707 BBC 6 Music, 708 BBC Radio 4 Extra, 709 BBC Asian Network, 710 BBC World Service, • as a digital multiplex transmitted on frequency C46 (674.0MHz) from 159m datum.
PSB2 D3+4	vertical	Maximum	64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2	3
	3 ITV (Granada), 4 Channel 4 North ads, 5 Channel 5 The North ads, 6 ITV 2, 13 Channel 4+1 North ads, 14 More 4, 28 E4, 33 ITV +1 (Granada), • as a digital multiplex transmitted on frequency C43 (650.0MHz) from 159m datum.
PSB3 BBCB	vertical	Maximum	256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4	3
	101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Granada), 104 Channel 4 HD North ads, plus 1 others 232 The Space, • as a digital multiplex transmitted on frequency C40 (626.0MHz) from 159m datum.

Looking for these 26 channels?

The Union Mills (IoM) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 5*, 5USA, Al Jazeera English, Challenge, Channel 5 +1, CITV, Community Channel, Dave, Dave ja vu, E4+1, Film 4, Food Network, ITV 2 +1, ITV 3, ITV 4, Movie Mix, PICK TV, Quest, Really, RT English , Sky News, The Zone, VIVA, Yesterday.

If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.

Regional news from the Union Mills (IoM) transmitter

How the transmission frequencies change over time

	years		1984-97	1997-98	1998-2009	2009-13	14/11/12-	2013-18
	aerial group		B E	B E	B E	B E	B E K	B E K
	C39		BBC1	BBC1	BBC1
	C40						BBCB	BBCB
	C42		C4	C4	C4
	C43					D3+4	D3+4	D3+4
	C45		BBC2	BBC2	BBC2
	C46					BBCA	BBCA	BBCA
700	C50					BBCB
	C52		ITV	ITV	ITV

orange background for multiplexes names more

green background for transmission frequencies

lilac background for power levels in watts

800MHz band: 4G mobile to start in 2013

700MHz band: possible 4G in 2019 more

600MHz band: new or moved digital TV services more

Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Thursdays 18th June and 16th July 2009.

Comparison of old analogue and current digital signal levels

Analogue 1-4	12W
BBCA, D3+4, BBCB	(-6.8dB) 2.5W

History of Channel 3 in the Douglas transmitter area

• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Union Mills (IoM) was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.