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Radio Microphone Frequency Information

UPDATE 2018

From May 2020 wireless frequencies between 694 – 862 MHz (channels 49 – 69, excluding channel 65) will be available to mobile telephone network services only.
Because of this, all Terrestrial Television Services and PMSE (Program Makers and Special Events) radio mic users have been asked to vacate these frequencies, which has resulted in them moving down into the 470 – 694 band (channels 21 - 48).

While the shared non-protected licenced band 38 for wireless microphones will not be affected, you may find other bands become less useable as interleaved spectrums for Terrestrial TV services expand.  This will be area dependent and will need checking before licencing.

The following link gives a pre and post map of the changes regarding Terrestrial Television Services.

https://ukfree.tv/maps/uhfchannel/39

Since March 2015, 822 – 830MHz (channel 65) has been available for wireless microphones, this is known as the Duplex Gap and is licenced.
If this is to be used, then you cannot stray outside the recommended frequencies as you will suffer interference from 4G networks. This can be used on the shared band 38 licence.

Some manufacturers utilise the 1.8 GHz band (1785 – 1805 MHz) available on a UK shared licence (identical in licence application to channel 38 and 65).
This band is exclusively for wireless microphones and IEM and is not shared with other services and can accommodate up to 20 wireless systems with minimum intermodulation problems. To do so requires 1G8 specific hardware, standard wireless systems will not tune to this frequency nor will their peripherals. 

DECT band (2.4 GHz) wireless systems are not affected by this change.

Chan  21 - 37 38 39 - 49 50 - 64 65 66 - 69 70 1G8
Freq  470
-
606
606
-
614
614
-
702
702
-
822
822
-
830
830
-
862
863
-
865
1785
-
1805
Network  Interleaved
PMSE
TTV
Wireless
Shared
Licence
Interleaved
PMSE
TTV
Mobile
Networks
Wireless
Shared
Licence
Mobile
Networks
Wireless
Licence
Free
Wireless
Shared
Licence

Further information is available at:

https://www.ofcom.org.uk/manage-your-licence/radiocommunication-licences/pmse/pmse-technical-info/mics-monitors/shared#


OFCOM have issued formal notice that access to the band 694 to 790 MHz will cease from 1 May 2020. No use will be authorised beyond this date.
As part of its funding for the 700 MHz clearance, a grant scheme has been agreed with the government. OFCOM will be overseeing the grant scheme and will be consulting on the details shortly, the consultation will include proposals as to the type of equipment and users that will be eligible for funding. The grant scheme is expected to be launching in 2019.
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