VHF-22B  

Rockwell Collins - VHF Comm Transceiver
Part Number :


VHF-22B
FEATURES
  • Proline II remote-mounted, multichannel VHF voice transceiver providing AM voice communications in the frequency range from 118.000-136.975 and 118.000-151.975 MHz (see versions below)
  • Can be used with Proline II CTL-22 control
  • Accept either 2-out-of-5 parallel or RS-422A serial digital tuning data from frequency control unit
  • Narrow bandwidth intended for operation in areas using 25-kHz channel spacing with or without offset carriers
  • Models available reduced level of VHF harmonics in GPS band for GPS system compatibility (see table below)

 

SPECIFICATIONS
Weight: 5.6 lbs. Dimensions: 3.750"W x 3.50"H x 13.9"L
Related documents: DO-138, Env Category AD/A/JNG/AAAEXXXXX; TSO C37b and C38b, class 1, FCC rules and regulations, parts 15 and 87 Temperature: -65 to +131 C
Altitude: 55000 ft. max. Shock: 6 g for 11 ms, operating
Frequency Range: 117.000 to 136.975 or 151.975 MHz* Frequency stability: +-0.0015%
Channel Spacing: 25 kHz Frequency control: 2-out-of-5, in accordance w/ 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: 20 watts nominal; 16 watts 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: 100 milliwatts 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: 6-dB variation from 300 to 2500 Hz Audio distortion: 15% max, 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= +-8 kHz min, 60 db= +-17 kHz max (for -001 unit); 6db= +-15 Khz min, 60 dB= +-35 Khz min (for -002 unit)
AGC range: Maximum 3-dB 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
Part NumberVHF Communications Transceiver Description:
622-6153-001 With 118.000-151.975 frequency range
622-6153-002 With 118.000-136.975 frequency range
622-6153-021 With 118.000-151.975 frequency range; with reduced VHF harmonics level
622-6153-022 With 118.000-136.975 frequency range; with reduced VHF harmonics level

 

622-6153-001
- VHF Comm Transceiver (118-151 MHz)

NSN: 5820-01-328-1040

Price Condition Delivery
$2,150.00 OH OUTRIGHT CALL OR RFQ

SEA Repair Capabilities: Yes

622-6153-002
- VHF Comm

NSN: 5820-01-423-9200

Price Condition Delivery
$2,150.00 OH OUTRIGHT IN STOCK
$950.00 OH EXCHANGE IN STOCK

SEA Repair Capabilities: Yes

622-6153-021
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ OH OUTRIGHT CALL OR RFQ

SEA Repair Capabilities: Yes

622-6153-022
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ OH OUTRIGHT CALL OR RFQ

SEA Repair Capabilities: Yes

622-6153-023
- VHF Comm
Price Condition Delivery
$3,500.00 OH OUTRIGHT CALL OR RFQ

SEA Repair Capabilities: Yes

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact questions@seaerospace.com

This does not pertain to the comm selector channel spacing.

With the evolution and growth of airborne travel and the necessity for more usable frequencies in the VHF communications spectrum, the "channel" spacing became smaller. To avoid interference between channels the bandwidth of the RF stages was decreased from 50khz to 25khz. In doing so, another problem was introduced. If the ground transmitter or the air to air transmitter was not capable of tighter frequency tolerances, it was possible the 25khz RF selectivity would not allow the receive signal to pass and the aircraft crew could miss critical voice communications.

Due to the presence of older, outdated equipment in some countries, some manufacturers (namely Bendix/King and Collins) produced VHF comm radios with the 50khz receiver selectivity. With the recent mandates and technological advancements in Europe and South America, the requirements for the 50khz versions has diminished. If an operator were to use a 50khz version radio in the position of a 25khz, they would potentially have channel crossover and or an increase in background noise.
Southeast Aerospace exchanges are based on the return of an undamaged, economically repairable core unit with identical part number as the unit shipped to the customer. An "economically repairable" core is defined as one where the cost to repair/overhaul (or Repair Cap) does not exceed 80% of the original SV/OH exchange price billed. Should the Repair Cap exceed 80%, the customer will be billed the additional amount. In the event this amount exceeds the Outright Price for the unit, the customer would only be billed the difference between the Outright Price and SV/OH Exchange Price with the core returned as-is to the customer.

Here is an example of such a transaction:

$1000 Exchange Price charged to customer
$1000 x .8 = $800 Maximum Allowable core repair charge or Repair Cap

$2000 Cost to repair core unit
- $800 Less Core repair cap
---------
$1200 Additional billing amount.

2200.00 Total Cost of transaction

Please Note:
SEA offers exchange on new items as well. However, repair cap as indicated above is still based on SV/OH exchange price.