User Manual
UHF Digital Hybrid Wireless™ Receiver
Rio Rancho, NM
25
Operating Frequencies (MHz):
Block 470: 470.100 - 495.600
Block 19: 486.400 - 511.900
Block 20: 512.000 - 537.500
Block 21: 537.600 - 563.100
Block 22: 563.200 - 588.700
Block 23:* 588.800 - 614.300
Block 606: (Export - Outside N. America) 606.000 - 631.500
Block 24: 614.400 - 639.900
Block 25: 640.000 - 665.500
Block 26: 665.600 - 691.100
Block 27: (Export - Outside N. America) 691.200 - 716.700
Block 28: (Export - Outside N. America) 716.800 - 742.300
Block 29: (Export - Outside N. America) 742.400 - 767.900
Block 30: (Export - Outside N. America) 768.000 - 793.500
Block 31: (Export - Outside N. America) 793.600 - 819.100
Block 32: (Export - Outside N. America) 819.200 - 844.700
Block 33: (Export - Outside N. America) 844.800 - 861.900
* Firmware 5.1 and older has Block 23 split for US restricted access to the 608 to 614 frequencies.
Frequency Adjustment Range: 25.5 MHz in 100kHz steps
Receiver Type: Triple conversion, superheterodyne, 244 MHz,
10.7 MHz and 300 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: ±5.5 MHz @ -3 dB
Sensitivity
20 dB Sinad: 0.9 uV (-108 dBm), A weighted
60 dB Quieting: 1.12 uV (-105 dBm), A weighted
Squelch quieting: Greater than 100 dB
AM rejection: Greater than 60 dB, 2 uV to 1 Volt
(Undetectable after processing)
Modulation acceptance: 85 kHz
Image and spurious rejection: 85dB
Third order intercept: +8 dBm
Diversity method: Phased antenna combining SmartDiversity
TM
FM Detector: Digital Pulse Counting Detector operating at
300 kHz
Antenna inputs: Dual BNC female, 50 Ohm impedance
Audio outputs
Rear Panel XLR: Adjustable from -50dBu to +5dBu in 1 dB steps.
Calibrated into a typical 10 k Ohm balanced load.
Can drive 600 Ohm load.
Front Panel Controls and Indicators:
LCD control panel
Main window: Pilot tone; antenna phase, receiver battery level;
transmitter battery status; audio level, RF level
Frequency window: Frequency, TV channel; Transmitter switch setting
Audio output level
adjustment: -50 dBu to +5 dBu
Battery level tracking: Receiver and transmitter (9V battery) in 1/10th
volt steps, accuracy +/- 0.2V.
Transmitter (AA battery) x.xxV format, accuracy
+/- 0.05V.
Timer option available when transmitter battery is
set to NiMH.
Scanning mode: Coarse and fine modes for RF spectrum site
scanning
Audio test tone: 1 kHz, -50 dBu to +5 dBu output, < 1% THD
Transmitter battery
type selection: 9V alkaline, 9V lithium, AA alkaline, AA lithium,
NiMH
Specifications and Features
Phase invert: Audio output phase normal or inverted
SmartNR (noise reduction): OFF, NORMAL, FULL modes
(available in 400 Series mode only)
Audio Performance (overall system):
(These specs apply to 400 Series mode only.)
Frequency Response: 32 Hz to 20 kHz (+/- 1dB)
THD: 0.2% (typical)
SNR at receiver output (dB):
SmartNR No Limiting w/Limiting
OFF 103.5 108.5
NORMAL 107.0 111.5
FULL 108.5 113.0
(Note: the dual envelope “soft”
limiter provides exceptionally
good handling of transients
using variable attack and release
time constants. The gradual onset of limiting in the design begins below full
modulation, which reduces the measured figure for SNR without limiting by 4.5 dB)
Input Dynamic Range: 125 dB (with full Tx limiting)
Rear Panel Controls and features: XLR audio output jack; External DC input;
Battery compartment access
Power Options:
Ext DC: Minimum 10 Volts to maximum 18 Volts DC;
1.6 W, 180 mA at 12 VDC
Int Batt: Two 9 Volt alkaline or lithium (165 mA @ 9V,
240 mA @ 6V)
Battery Life:
9V alkaline 6 to 8 hours continuous, up to
12 hours intermittent
9V lithium Up to 20 hours (continuous and intermittent
usage are the same)
Weight: 14 oz. with batteries
Dimensions: 3.23” wide x 1.25” high x 4.64” deep
Specifications subject to change without notice