Model: 618M-2B

Collins Aerospace - VHF Comm Transceiver
Part Number :


618M-2B
FEATURES
  • VHF Communications Transcevier which provides aircraft communications in the 118.000 to 135.975 MHz frequency range
  • Typically used with 313N-5A analog control or any 2-out-of-5 ARINC format control
  • 25 watts minimum transmitter power
  • Standard 1/2 ATR short ARINC box
  • Models available with 25 or 50 kHz channel spacing or switchable filter for both (see table below)
  • Models available with 16 or 30 kHz bandpass (see table below)
  • Models available with receiver RF attenuator (see table below)
  • Models aviailable with active audio filter (see table below)
SPECIFICATIONS
Weight: 17.3 lbs. Dimensions: ARINC standard 1/2 ATR short
Power requirements: Receive= +27.5Vdc, 2A max; Transmit= +27.5Vdc, 7A max Temperature: -54 to +55 C
Altitude: 55000 ft. max. Related Documents: TSO C37b and C38b, Env. Cat. AD/A/AB/AAAE CLASS I, ARINC Characteristic 546, FCC Rules and Regulations parts 15 and 87
Frequency Range: 118.000 to 135.975 MHz in 25 and/or 50 kHz increments Frequency stability: +-0.001%
Channel Spacing: version dependent (see table below) Frequency control: 2-out-of-5, in accordance w/ ARINC 410
Channel change time: 100 ms max Transmit-receive interval: 60 ms max
Radiated rfi: Meets RTCA Paper 120-61/DO-108 Power output: 25 watts minimum
Output impedance: 50 ohms Harmonic Content: 60 dB down from carrier min
Spurious content: 90 dB down from carrier min Modulation capability: 90% amplitude modulation
Modulator input: Carbon mic input 0.25 V, 150 ohms; ATCSS data input 1 volt rms, 600 ohms Noise level: 40 dB below 90% modulation
Receiver Sensitivity: 8 dB snr for 3-uV signal: 30 dB snr for 100-uv signal; (-007,207,009,209 status) 6 dB snr for 3uV signal Receiver Bandwidth: 6 db= +-8 kHz min, 60 db= +-17 kHz max (for -003,009,010,203,209,210 units); 6db= +-15 Khz min, 60 dB= +-30 Khz min (for -001,006,007,201,206,207 units); 6 db= +-8/15 kHz min, 60 db= +-17/30 kHz max (for -004,204 unit)
Undesired responses: 90 dB below desired signal Receiver audio output: 100 mW with 30% modulated signal
Part NumberVHF Communications Transceiver Description:
522-4088-001 50-kHz channel spacing with 30kHz bandpass
522-4088-003 25-kHz channel spacing with 16kHz bandpass
522-4088-004 25 or 50-kHz channel spacing with 16 or 30kHz bandpass
522-4088-006 50-kHz channel spacing with special settings and 30kHz bandpass
522-4088-007 50-kHz channel spacing with recevier rf attenuator and 30kHz bandpass
522-4088-009 25-kHz channel spacing with recevier rf attenuator and 16kHz bandpass
522-4088-010 25-kHz channel spacing with special level settings and 16kHz bandpass
522-4088-201 25-kHz channel spacing with audio active filter and 30kHz bandpass
522-4088-203 25-kHz channel spacing with audio active filter and 16kHz bandpass
522-4088-204 25 or 50 kHz channel spacing with audio active filter and 16 or 30kHz bandpass
522-4088-206 25 kHz channel spacing with audio active filter, special level settings and 30kHz bandpass
522-4088-207 25 kHz channel spacing with audio active filter, receiver rf attenuator and 30kHz bandpass
522-4088-209 25 kHz channel spacing with audio active filter, receiver rf attenuator and 16kHz bandpass
522-4088-210 25 kHz channel spacing with audio active filter, special level settings and 16kHz bandpass


PLEASE NOTE:
THE ABOVE LISTED PART NUMBERS REFLECT THE DIFFERENT UNITS ORIGINALLY AVAILABLE BY THE MANUFACTURER AND DO NOT NECESSARILY INDICATE OR REFLECT THE CURRENT AVAILBILITY OF THESE DIFFERENT UNITS BY SOUTHEAST AEROSPACE OR THE AFTERMARKET

 

522-4088-001
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

522-4088-002
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

522-4088-003
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

522-4088-203
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

522-4088-204
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

522-4088-210
- VHF Comm Transceiver
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

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

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.