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A10-TX User Guide
Basic Operation
Frequency Selection
The A10 Digital Wireless System operates in the UHF frequency band from 470 to 694 MHz.
There are three models (two in some geographic markets) of the A10-TX transmitter to cover
this frequency range.
Multiple A10 Digital Wireless systems can be used simultaneously on nearby adjacent frequen
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cies without worry of intermodulation interference since the A10 Digital Wireless System and its
digital RF transmission is inherently immune to intermodulation. Systems can be used together
when separated by at least 400 kHz. Use the scan tool on the A10-RX receiver to search for
available frequencies.
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When using A10 Digital Wireless systems in conjunction with analogue RF systems, an
intermodulation plan needs to be addressed for analogue receivers.
Channel, Sub Channel, Tune
To simplify frequency selection, frequencies are divided into channels and sub channels. Fre
-
quencies corresponding to channels and sub channels depend on the TV Channel Mapping
selected in the Systems menu. Three options are available, 6, 7, and 8 MHz spacing, X, Y, and Z
respectively. These three settings generally correspond to three main geographic regions, USA,
Australia/New Zealand, and Europe, respectively.
• Channel
- corresponds to broadcast television channels used in geographic regions. Depend
-
ing on the selected channel mapping, channels cover 6, 7, or 8 MHz.
• Sub Channel
- channels are divided in 400 kHz increments called sub channels to speed up
frequency selection. The number of sub channels depends on the channel mapping selected.
• Tune
- specific frequencies within the transmitter’s tuning range can be selected in 25 kHz
increments.
To change TV channels, use the Left button to highlight the TV
Channel. Press the centre Menu button to select the TV channel.
Select Sub Channel until the desired sub-channel is selected.
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Remember, for a given channel / sub channel, the actual
frequency will change depending on the TV Channel Mapping setting.
The frequency is displayed with an asterisk (*) when the tune value does not fall within the
pre-allocated sub channel.
in this guide for a complete list of frequencies corresponding to the
channel and sub channel selections.
Audio Input and Control
The A10-TX input accepts a wide range of audio input types, including lavalier microphones,
balanced microphones, and balanced and unbalanced line level signals. 12 V and 48 V phantom
power is available for balanced microphones. The Selection Menu offers options for input type,
limiters, and low cut filter.
Lavalier Microphones
Unbalanced lavalier microphones wired in two-wire mode, are directly compatible with the
A10-TX input. When connected, the A10-TX auto-detects the presence of a lav microphone.
