User's Manual

Digital Belt-Pack Transmitter
Rio Rancho, NM
3
DBu-LEMO Block Diagram
Consumer Alert for US Users - FCC Order DA 10-92
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system
without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power
level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers
should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to
change. For more information, call the FCC at 1-888- CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone
website at www.fcc.gov/cgb/wirelessmicrophones. To operate wireless microphone systems at power greater than 50mW, you
must qualify as a Part 74 user and be licensed. If you qualify and wish to apply for a license go to: http://www.fcc.gov/Forms/
Form601/601.html
Filters
Keypad
(2) AA
Batteries
Oscillator
VCTXO
I2S
I2S
Voltage Controlled
Oscillator
Final
Amplifier
Control
PLL Ref
Phase Locked Loop
DSP Clock
Switching
Power
Supply
Microprocessor
Power
LED
Tr icolor
D-A Convert-
er
A-D
Converter
Shunt
Limiter
Limiter Control
Gain
Adj
HI/Lo
Pass
Filter
Input
Preamp
Bias Voltage
0, 2 or 4V
Servo Bias
Supply
+5V
I + Q
Baseband
Signals
Low
pass
filters
IQ Modulator
UART
USB
Jack
Security Key
Audio
Firmware
Update
Key Received
Blue LED
Low
Pass
Filter
Buffer
36.864 mHz
IR Port
DBu/LEMO Transmitter
Input
Jack