Freeview – Isle of Man

Last updated: October 16, 2016
Transmitter: Glenmaye

Flag of the Isle of ManFreeview is available on the Isle of Man from the Glenmaye transmitter, commercial muxes are not available, reception of these may be possible from the mainland.
The island is covered by the Granada ITV region.
The Isle of Man is a dependency of the British Crown, it is not part of the United Kingdom or a member of the EU. The local government controls broadcasting on the island.

The island has no local television channels and receives television and radio services from the British mainland relayed from the Glenmaye transmitter.
Viewers with Freeview HD equipment in some areas of the island, may also be able to receive Saorview (Freeview) from the Irish Republic.
Reception of the Irish Saorsat (Freesat) satellite platform, may also be possible on the Isle of Man.


 

Freeview Multiplexes

Freeview UKEach Freeview multiplex is an error-protected bitstream of 24, 27 or 40 megabits per second, which can be used for almost any combination of digitally-encoded video, audio and data.
The DVB-T and DVB-T2 standards provides a multiplex service that can make trade-offs between the number of services and the picture and audio quality.
A number of services use the same bandwidth at different times. For example CBeebies and BBC Four currently use the same space in their multiplex, with CBeebies broadcasting from 6am until 7pm and BBC Four from 7pm.
some multiplexes allocate more bandwidth to services, providing a smaller number of higher-quality services.
Freeview currently uses DVB-T/MPEG-2 and DVB-T2/MPEG-4 systems for terrestrial transmissions.

The modulation of the multiplexes can be varied to squeeze higher digital bitrates out of the same portion of the electromagnetic spectrum, requiring a stronger signal for good reception.
The modulation schemes used in the UK are, in order of bandwidth efficiency, each with a progressively higher bitrate, at the cost of progressively higher likelihood of signal degradation:

QPSK – Quadrature Phase Shift Keying
Quadrature Phase Shift Keying (QPSK) is a form of Phase Shift Keying in which two bits are modulated at once, selecting one of four possible carrier phase shifts (0, 90, 180, or 270 degrees). QPSK allows the signal to carry twice as much information as ordinary PSK using the same bandwidth. QPSK is used for satellite transmission of MPEG2 video, cable modems, videoconferencing, cellular phone systems, and other forms of digital communication over an RF carrier.

16-QAM (no longer used as of digital switchover)
64-QAM (only used on the DVB-T multiplex)
256-QAM (only used on the DVB-T2 multiplex)
1024-QAM
2048-QAM (Currently in development)

For more information on UK multiplexes and bitrates see: http://en.digitalbitrate.com
For more information on UK multiplexes see:  http://www.terrestrialtv.uk
For Freeview channel listings see: www.digitaluk.co.uk/industry/Channels/channel_listings
For retuning information see: www.digitaluk.co.uk/howtoretune/retuning_instructions

Freeview Website: www.freeview.co.uk


 

Freeview Lite

Freeview LiteWhat is referred to as ‘Freeview Lite’, is actually the three PSB multiplexes, PSB 1 operated by the BBC, PSB2 operated by  ITV plc and Channel 4 and PSB3 operated by the BBC.
PSB3 transmits in DVB-T2 and contains simulcasts of the PSB channels in HD.

These three Public Service multiplexes are obliged by their public service status to reach 98% of the UK population, this is in contrast to commercial multiplexes which have no such obligation and broadcast where it is considered commercially viable. It is up to the individual operators to decide whether or not their mux should be made available to rural areas via relay transmitters.
Most affected, are northern and central Wales, the Scottish Highland and islands, parts of England, the Isle of Man and the Channel Islands.

This could change in the future, as multiplexes migrate to DVB-t2 and PSB standard channels are replaced with a HD versions.
An aerial upgrade could also be an option in some areas, allowing reception of the commercial muxes.

Viewers with limited or poor Freeview reception, can receive most Freeview channels, though not all, on satellite, either through Freesat or Freesat from Sky.


 

PSB 1
Channel
LCN
Encryption
Information
BBC One North West
1
Clear
National & Regional variation.
BBC Two England
2
Clear
National
BBC FOUR
9
Clear
19:00 – 05;30.
CBBC
70
Clear
07:00 – 19:00.
CBeebies
71
Clear
05:30 – 19:00.
BBC News
80
Clear
24 hours.
BBC Parliament
81
Clear
Various
BBC Red Button 1 601 Clear
24 hours.
BBC Red Button
200
Clear
24 hours.
BBC Radio 1
700
Clear
24 hours.
BBC 1Xtra
701
Clear
24 hours.
BBC Radio 2
702
Clear
24 hours.
BBC Radio 3
703
Clear
24 hours.
BBC Radio 4
704
Clear
24 hours.
BBC Radio 5 Live
705
Clear
24 hours.
BBC Radio 5 Live Sports Extra
706
Clear
Various broadcasting hours.
BBC 6 Music
707
Clear
24 hours.
BBC Radio 4 Extra
708
Clear
24 hours.
BBC Asian Network
709
Clear
24 hours.
BBC World Service
710
Clear
24 hours.
BBC Manchester 719 Clear 24 hours.
BBC Lancashire 720 Clear 24 hours.
BBC Cumbria 721 Clear 24 hours.
BBC Merseyside 722 Clear 24 hours.
BBC Stoke
733
Clear
24 hours.
Engineering Channel N/A Clear The Engineering Channel, is operated by DTG.
Technical Information
Operated by: The BBC
Transmission Standard: DVB-T (MPEG-2)
Guard: 1/32 guard = 24.1Mbps
FEC: 2/3
Modulation: 64 QAM (24,000 kbps)
Carrier type: 8K
Operational band: UHF
DTG Testing administers The Engineering Channel, carried on Multiplex PSB1, this is used by manufacturers to download software updates to Freeview/DTT receivers.
Over-air downloads scheduled for the current week and next are available from: Engineering Channel Over-air Download Schedule

 

PSB 2
Channel
LCN
Encryption
Information
ITV (Granada)
3
Clear
Regional variations.
Channel 4
4
Clear
24 hours.
Channel 5
5
Clear
24 hours.
ITV2
6
Clear
24 hours.
Channel 4+1
13
Clear
Timeshift version of Channel 4.
More4
14
Clear
Entertainment.
Film4
15
Clear
Films.
E4
28
Clear
Entertainment.
ITV+1 (Granada)
33
Clear
24 hours.
Technical Information
Operated by: ITV/Channel 5
Transmission Standard: DVB-T (MPEG-2)
Guard: 1/32 guard = 24.1Mbps FEC: 2/3
Modulation: 64 QAM (24,100 kbps)
Carrier type: 8K
Operational band: UHF

 

PSB 3
Channel
LCN
Encryption
Information
Fiilm4 ++1
45 Clear
24 hours.
BBC One HD
101
Clear
HD simulcast of BBC One.
BBC Two HD
102
Clear
HD simulcast of BBC Two.
ITV HD
103
Clear
HD simulcast of ITV.
Channel 4HD
104
Clear
HD simulcast of Channel 4.
Channel 5 HD
105
Clear
HD simulcast of Channel 5.
CBBC HD
123
Clear
HD simulcast of CBBC.
Technical Information
Operated by: The BBC
Transmission Standard: DVB-T2 (MPEG-4)
Guard: 1/128
FEC: 2/3
Modulation: 256 QAM
Carrier type: 32KE
Operational band: UHF
Note on Video & Audio bitrates
Video for each channel can range between 3 Mb/s and 17 Mb/s.
AAC or Dolby Digital Plus audio is transmitted at 320 kb/s for 5.1 surround sound, with stereo audio at 128 kb/s.
Audio description takes up 64 kb/s, subtitles 200 kb/s and the data stream.
Interactive applications, just 50 kb/s.

 

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