AValon RF TA-8 - Manual (Page 6)

AVALON RF, INC. Page 4
TA-8 Series User’s Guide & Operating Manual
1.1 Radio Reception.
The TA-8 has 8 antennas configured in a flower like arrangement. 7
antennas cover the 360
o
azimuth while an 8
th
antenna looks straight
up. This gives complete reception within the hemisphere. The user
does not have to make any antenna connections. The TA-8 is tuned
to receive a rf channel by tuning the two DX604’s.
1.2 Video Output.
The intelligent electronics in the TA-8, does diversity both on the rf
signal and then on the video. The final output is available dc restored
to ground and continuously corrected for optimum level (1V p-p).
1.3 Telemetry Downlink (optional).
With this option, the audio sub-carrier on the rf signal is configured to
receive digital data at 4.8Kb/s. This received digital information is
then processed for timing recovery and made available at RS232
levels for direct connection to a serial port of a pc.
1.4 Control Uplink (optional).
This option adds a uplink radio link which works on UHF frequencies.
A separate omni directional antenna is installed inside the TA-8 for
communication with a companion receiver on the airplane. This link
accepts RS232 level input at 4.8Kb/s and transmits the data
wirelessly with error correction for perfect reception.
The combination of this link and the telemetry downlink option gives a
full duplex data communication with the bird (UAV/ Helicopter).
1.5 Power.
The TA-8 works off a standard 12V power source. The load is approx
3A or less. Avalon RF has supplied a universal input 100-240V, 50-
60Hz power supply that is recommended to be used with this unit. If
the user plans to use their own power supply (such as Vehicle
operation), please ensure that the power supply is capable of at least
7-8A to allow for the turn-on current surge.