Codan VR-3A130-SYF Technical Notes

TN213 VR-3A130-SYF VHF AM Enhanced Receiver
The VR-3A130 Receiver is a multichannel synthesized low power AM receiver capable of
RECEIVER
FREQUENCY (MHz)
operating for regular AM voice radios in 8.333 and 25 KHz channel spacings. The VR-3A130-S
SQ . DI SA B L E
receiver operates in the 118 to 137 MHz aviation band. A modular design allows each of the
N O RM
O FF
receiver's two internal modules, the Main Receiver Board, and OSR-3A130 Synthesizer, to be
individually assembled and tested. This facilitates construction, tuning and maintenance as
RF N I well as troubleshooting procedures. The synthesizer module can be programmed to have up
REFERENCE
to 16 channels in the 118 to 137 MHz frequency band. Channel 16 can be programmed from
INPUT
the front panel frequency select handle.
2 8 . 0 0 0 0
*
MADE IN CANADA
MODEL # CODE
Specifi cations
Frequency Band
Channel Spacing
Frequency Switching Range
Sensitivity (for 6 dB S/N)
Sensitivity (for 10 dB SINAD)
Selectivity (6 dB Nose Bandwidth)
Selectivity (60 dB Skirt Bandwidth)
Spurious Responses
Intermodulation Response Rejection
Noise Level
L.O. Frequency Stability
Distortion (THD) (-40°C to +60°C)
AGC Squelched Audio Attack Time
Audio Squelch Sensitivity
Squelch Hysteresis
Operating Temperature
Operating Current (Squelched)
Specifi cations tested using RTCA DO-186B and ETSI EN300 676 Section 8.8
Models Available
VR-3A130-SYF210

Receiver Operating Frequency

The receiver is initially aligned at the factory for the center of the 118 to 137 MHz frequency range. No re-alignment
of the receiver is required to change frequencies. The receiver operating frequency can be set as follows:
Channel 1 is programmed by the four BCD switches located on the Receiver Mainboard.
Channels 2 through 15 are programmed in the synthesizers' internal memory (done at the factory, or by a synthesizer
channel programmer).
Channel 16 is programmed by the front panel frequency select handle (exclusive to the AM product).
43 Erie Street
Victoria, B.C.
Canada V8V 1P8
TN213 Rev 8-0-0 May 14
118 - 137 MHz
8.333 & 25 KHz
Full Band
≤ -110 dBm
≤ -107 dBm @ 128 MHz, +25°C
≥ 2.77 KHz (±)
≤ 7.37 KHz (±)
≥ 100 dB
≥ 110 dB
≤ -40 dB
± 5.0 ppm (-30°C to +60°C) (-40°C to +60°C optional)
≤ 10% @ 85% modulation
< 60 ms
≥ 8 dB SINAD close point / ≤ 20 dB SINAD open point
0 to 8 dB
-30°C to +60°C (-40°C to +60°C optional)
≤ 117 mA
Enhanced Synthesized, AM, 118 - 137 MHz, with FP frequency select handle
Toll Free Canada & U.S.A.
Phone: 1-800-664-4066
Fax: 1-877-750-0004
© 2014 Codan Limited All rights reserved.
TECHNICAL NOTES
MT-3 Radio Systems
International
Phone: 250-382-8268
Fax: 250-382-6139
Internet
Email: LMRsales@codanradio.com
Web: www.codanradio.com
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