The Mk 3 version of our UHF 863
MHz Directors' Foldback system is DTI approved and no licence is
required
Please note, however, that
we are unable to produce these units (as explained on our UHF
Foldback homepage) and we are now offering our
Mk 4 version
It is also helpful to note that the Mk 3 version is NOT compatible with
either the Mk 4 or the Mk 1
versions, but it IS compatible with Mk 2 units
The Mk 3
863 MHz Stereo
Transmitter operates in the UHF band to provide very high quality stereo
transmission from a slimline unit, providing 8 times the
power of the original version
It is powered by a standard 12 volt 4
pin Hirose socket. Stereo input is via a 6 pin Hirose socket from your
mixer. The TX has superbright battery volts and power LED indicators.
An automatic power saving system switches the TX to standby when not in use.
The Mk 3 Transmitter now has a 3 position switch control for feeding stereo
"left/right", or just "left", or just "right" channels
The optional
Mk 3 863 MHz Transmitter Power Booster
is only for power hungry maniacs!!
It is a very small unit (only about 2 inches square) but increased the power of the
TX by 75 times. The output is 750 mW. It is simply
powered from the bottom 4 pin Hirose socket on the main TX unit. The Power
Booster will work from 9-18 volts with no change in performance. It uses a
high efficiency switch mode power supply for lowest possible current consumption
The Mk 3 863 MHz Foldback Receiver is a very high quality, self powered unit for Directors, PA's etc
who need to hear the sound mix on the set. The Mk 3 Receiver's
sensitivity has been dramatically improved with completely re-designed
circuitry. This unit uses a rechargeable
metal hydride internal battery pack with a much greater battery life of a
gigantic 100 hours. It has a standard 3.5mm
minijack stereo socket for headphones; BNC aerial socket; the volume
control is by a push On/Off switch
The Mk 3 units automatically tune
themselves each time they are switched on. The tuning then autotracks
continuously. In the unlikely event that the Receiver tunes to an unwanted
frequency, the unit can be tuned to the next TX channel automatically by
pressing the small recessed black button on the side of the unit
Keep your Mk 3 Receivers up to
scratch with either our Mk 3 4-Bay Charger (charges up to four Receivers in one go),
or by using our Mk 3 "Cheapo" Charger
(a single wall block overnight charger)
All prices
shown are exclusive of VAT, postage + packing and insurance
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Video - originally created by Black Box Video February 2001; relaunched
June 2008;
last updated: 20 June 2008
The Brain Zone designed and
maintained by Black Box Video - created by Black Box Video between
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last updated: June 2008
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The Mk 3 units automatically tune
themselves each time they are switched on. The tuning then autotracks
continuously. In the unlikely event that the Receiver tunes to an unwanted
frequency, the unit can be tuned to the next TX channel automatically by
pressing the small recessed black button on the side of the unit
