VHF 20B

Collins - VHF
VHF 20B
VHF 20B


Part Number :
All prices are exclusive of VAT
Select part number to view pricing and availability.
Price Condition Delivery Action
995.00 € SV OUTRIGHT In stock
795.00 € OH EXCHANGE On request
295.00 € SERVICE TEST EASA/FAA DUAL RELEASE On request
S.E.A.M.Repair Capabilities : Yes
Features
 
  • Provides AM voice communication in the frequency range from 116.00-151.975 MHz
  • Optional bandpasses available of more or less 8 kHz or more or less 15 kHz 
  • Solid state transceiver
  • Typically used with either CTL-20 digital control or 313N-5 series analog controls
  • Composed of subassemblies that mount on a central frame
  • Similar to VHF-20A Comm Transceiver but includes extended range to 151.975 MHz
 
Specifications
 

DIMENSIONS

3.750"W x 3.50"H x 13.9"L

WEIGHT

5.6 lbs

TEMPERATURE RANGE

-65 to 131°C

ALTITUDE

 up to 55 000 feet 

SHOCK

6 g for 11 ms, operating

FREQUENCY RANGE

118.000 to 151.975 MHz

FREQUENCY STABILITY

more or less 0.0015%

CHANNEL SPACING

25 kHz

FREQUENCY CONTROL

2-out-of-5, in accordance with ARINC 410

CHANNEL CHANGE TIME

Less than 50 ms

TRANSMIT-RECEIVE INTERVAL

Less than 50 ms

RADIATED RFI

Meets RTCA Paper DO-138, DO-109, DO-110

RF POWER OUTPUT

20W nominal; 16W minimum

OUTPUT IMPEDANCE

52 ohms, unbalanced

HARMONIC CONTENT

60 dB down from carrier minimum

SPURIOUS CONTENT

90 dB from carrier minimum

MODULATION CAPABILITY

90% amplitude modulation

MODULATOR INPUT

Carbon mic input 0.125 V adjustable, 150 ohms

SIDETONE OUTPUT

100mW into 600 ohms with 90% modulation

DUTY CYCLE

1-minute transmit; 4-minute receive

NOISE LEVEL

50 dB below 85% modulation at 1000 Hz

AUDIO RESPONSE

6dB variation from 300 to 2500 Hz

AUDIO DISTORTION

15% max, at 85% modualtion

RECEIVER SENSITIVITY

6 dB (signal noise)/noise for 3-uV signal; 30 dB (signal noise)/noise for 100-uV signal

RECEIVER SELECTIVITY

6 db= about 8 kHz min (for -001 unit), 

60 db= about17 kHz max (for -001 unit); 

6db= about 15 kHz min (for -002 unit), 

60 dB= about 35 kHz min (for -002 unit)

AGC RANGE

Maximum 3dB variation, 5 to 200,000 uV

RECEIVER AUDIO OUTPUT

100 mW into 600 ohms, balanced

RECEIVER AUDIO RESPONSE

6-dB variation from 300 to 2500 Hz, 1000-Hz reference

RECEIVER AUDIO DISTORTION

7% max, 30% modulated signal

RELATED DOCUMENTS

DO-138, Env Category AD/A/JNG/AAAEXXXXX; TSO C37b and C38b, class 1, FCC rules and regulations, parts 15 and 87

PART NUMBER DESCRIPTION

622-1334-001

116.000-151.975 frequency range with about 8 kHz IF bandpass filtering and is compatible with about 8 kHz offset carrier systems

622-1334-002

116.000-151.975 frequency range with about 15 kHz IF bandpass filtering and is compatible with about 15 kHz offset carrier systems
 

 

 
VHF 20B
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