D05Radios & communications

Connect the crew and aircraft to other stations.

Manufacturers & products

Aircraft communications includes voice, operational data and optional long-range links. This set concentrates on actual airborne VHF transceivers, with controls and antennas treated as interfaces.

Program applicability is stated for each listing. 737NG, 737 MAX, and other aircraft examples are distinct configurations; listed products are not automatically interchangeable or approved for installation.

manufacturer

Collins Aerospace

VHF-2100 / VHF-2100E

Airborne VHF transceiver family for voice/data; the E version extends frequency coverage for special operations. [1]

Program / application

737 family — documented; generation/equipment effectivity unverified [1]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route

manufacturer

Honeywell Aerospace

RTA-44D / RTA-50D VDR

Airborne VHF transceivers provide voice and data links between aircraft and ground systems. [3]

Program / application

Air-transport VDR candidate; exact 737 fit unverified [3]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route

manufacturer

Becker Avionics

RT6512

Remote VHF radio with ARINC429/RS422 integration and optional extended-band coverage. [2]

Program / application

General business/commercial aviation; 737 applicability unverified [2]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route

What remains unverified

Only three directly evidenced VHF manufacturers are listed; HF/SATCOM and antenna-specific supplier expansion remains useful.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

Band and channel spacing · MHz / kHz
Identify authorized frequency coverage and channelization for the intended service.
Voice and data modes
ACARS/VDL, voice and other links have different equipment/software needs.
RF output · W
Compare rated transmitter output separately from electrical input.
Receiver performance
Sensitivity, selectivity and interference rejection affect link reliability.
Antenna installation
Cable loss, bonding, pattern and separation influence effective coverage.
Audio and control interfaces
Verify cockpit audio, tuning and data-management compatibility.
Power and environment
Assess transmit current, cooling, temperature and installation zone.
Effectivity and support
Confirm radio part numbers, software and applicable aircraft approvals.

Selection & integration notes

Do not compare a cockpit communication radio with a passenger connectivity modem as if they serve the same function.

Published product examples

2 REFERENCES

Specifications belong to the named product and configuration.

RT6512 standard-band configurationBecker Avionics

Transmit output: 20 W[2]Published transmitter power.
Standard band: 118.000–136.9916 MHz[2]Optional extended coverage is not included in this value.
Channel spacing: 25 / 8.33 kHz[2]Standard airband operation.
Supply: 28 VDC nominal[2]Published nominal supply.
Mass: ≤2.5 kg[2]Includes mounting tray.

This is a general integration candidate, not a verified 737 radio.

Example sources [2]

VHF-2100ECollins Aerospace

Upper extended frequency: 151.975 MHz[1]E version for special operations; not the standard-family tuning limit.

The source does not give generation-specific 737 installation effectivity or complete RF performance here.

Example sources [1]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

VHF-2100 Very High Frequency Transceiver Collins Aerospace · Publication date not stated
737-family reference; VHF-2100E extended frequency limit.
Accessed 2026-09-10
RT6512 Remote Controlled VHF Radio Becker Avionics · Publication date not stated
Transmitter power, standard/optional bands, supply, mass and interfaces.
Accessed 2026-09-10
VHF Data Link Mode 2 Radios Honeywell Aerospace · Publication date not stated
RTA-44D and RTA-50D airborne voice/data transceiver families.
Accessed 2026-09-10