Codan Radio Communications VT-3A130-F User Manual

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Audio Specifications 
Parameter Specification 
Reference 
Audio Input 
-30 to 0 dBm into a 600Ω balanced load 
 
Audio Frequency Response 
Flat audio; +1/-5 dB: 350 Hz - 2.5 kHz 
RTCA DO-186A 
Paragraph 2.3.5.1 
Audio Frequency Distortion 
1 kHz tone, 50kHz Low Pass Filter 
Less than 5%+25˚C at 85% modulation 
Less than 10% -40˚C to +60˚C at 85% modulation 
Less than 15% >+40˚C to +60˚C 
RTCA DO-186A 
Paragraph 2.3.4 
Synthesizer Specifications 
RF Power Output: 
+3 dBm Nominal 
 
Physical Specifications 
Physical Dimensions: 
Width: 
7.1 cm (2.8 in) 
Height: 
12.8 cm (5.05 in) 
Depth: 
19 cm (7.5 in) 
Module Weight: 
1.4 kg (3.0 lb.) 
Corrosion Prevention: 
Anodized aluminum construction. Stainless steel hardware. Selectively conformal 
coated glass epoxy 2 and 4 layer printed circuit boards. Gold plated module 
connectors.  
Module Design: 
Compact Eurostandard modular design. Plug-in modules mate with Daniels 
standard MT-3 repeater subrack. Subracks and modules comply with IEEE 1101, 
DIN 41494 and IEC 297-3 (mechanical size / modular arrangement).  
External Connections: 
RF Connection: Type N connector located on the transmitter module front panel. 
Motherboard Connections (Audio, Power, and Control) are made through a 48 pin, 
gold plated, type F connector on the rear of the transmitter module. User 
connection is made through a mated “mother board” assembly of the repeater 
subrack. Type F standard connector complies with DIN 41612 Level 2 (200 mating 
cycles, 4 day 10 ppm SO2 gas test with no functional impairment and no change 
in contact resistance).  
 
Frequency Select Handle  
Performance Specifications 
Temperature Range: 
-30°C to +60°C.(Optional -40°C to +60°C) 
Supply Voltage: 
+9.5 VDC 
Supply Current: 
Less than 35 mA  operate; less than 4.0 mA standby mode