Walter Dittel Transceiver FSG 90

The Walter Dittel / f.u.n.k.e. Avionics FSG 90 is a proven and exceptionally rugged VHF/AM aviation transceiver for the frequency range from 118.000 to 136.975 MHz. The FSG 90 has been used worldwide for decades and is particularly known for its high reliability, long service life and robust design.

Originally developed by Walter Dittel, the FSG series is now continued by f.u.n.k.e. AVIONICS. The compact radio is suitable for installation in aircraft as well as – with the appropriate approval and configuration – for ground radio and mobile applications.

The FSG 90 supports both 8.33 kHz and 25 kHz channel spacing. In combined 8.33/25 kHz operation, a total of 2,278 channels are available within the frequency range from 118.000 to 136.975 MHz. Alternatively, the unit can be switched to 25 kHz operation only.

For frequently used frequencies, the FSG 90 provides 99 freely programmable channel memories. This allows regularly used airport, FIS and other radio frequencies to be stored and recalled quickly and conveniently.

A dedicated speech processor helps provide excellent speech quality and intelligibility, including operation with the narrower 8.33 kHz channel spacing.

The FSG 90 provides an RF transmitter output power of 6 watts, making it a powerful radio solution for professional aircraft installations and compatible ground applications.

The unit is designed for a nominal aircraft supply voltage of 13.8 V DC and can be operated within a supply voltage range of approximately 11.0 to 16.1 V DC.

With its round front panel, the FSG 90 is designed for the classic 2¼-inch instrument panel cutout (57/58 mm). This allows the transceiver to be integrated into the instrument panel while requiring relatively little panel space.

All essential operating functions are controlled via the front panel. The rear of the unit features a 25-pin D-Sub connector for the electrical installation and a BNC antenna connector.

In addition to permanent aircraft installation, the FSG 90 can be used with suitable accessories in appropriate portable radio stations and carrying systems, making it suitable for certain mobile ground radio applications.

The FSG 90 is also compatible with CLIMAX / Multi-Carrier systems, allowing it to be used for corresponding professional ground communication applications.

Features:

VHF/AM aviation transceiver

Proven and exceptionally rugged design

Used worldwide in professional applications for decades

Frequency range: 118.000 – 136.975 MHz

8.33 kHz and 25 kHz channel spacing

Switchable 8.33/25 kHz or 25 kHz operation

2,278 channels in combined 8.33/25 kHz operation

760 channels in 25 kHz operation

99 freely programmable channel memories

6 W RF transmitter output power

Dedicated speech processor for excellent speech intelligibility

Suitable for aircraft and compatible ground radio applications

CLIMAX / Multi-Carrier compatible

Compact 2¼-inch round instrument format

Installation diameter approx. 57/58 mm

25-pin D-Sub connector

BNC antenna connector

Rugged construction for long service life

Technical Specifications:

Model: FSG 90

Manufacturer: f.u.n.k.e. AVIONICS GmbH / originally Walter Dittel

Manufacturer Part No.: F10185

Device type: VHF/AM Airband Transceiver

Frequency range: 118.000 – 136.975 MHz

Channel spacing: 8.33 kHz / 25 kHz

Number of channels at 8.33/25 kHz: 2,278

Number of channels at 25 kHz: 760

Channel memories: 99

RF transmitter output power: 6 W

Nominal supply voltage: 13.8 V DC

Supply voltage range: 11.0 – 16.1 V DC

Current consumption: < 1.0 A receiving / < 3.0 A transmitting

Frequency stability: < 1.5 ppm at -20 °C to +55 °C

Installation format: 2¼-inch round instrument

Dimensions: approx. 63 × 58 × 223 mm

Weight: approx. 800 g

Device connector: 25-pin D-Sub

Antenna connector: BNC

Approvals / Standards:

ETSO: EASA.21O.1305 Rev. A

JTSO-2C37d

JTSO-2C38d

ED-23B Transmitter Class 4 & 6

ED-23B Receiver Class C & E

BAF: D-0036/2014

Installation and Connection:

The FSG 90 is designed for permanent installation in a 2¼-inch instrument panel cutout. Electrical connections are made via the 25-pin D-Sub connector on the rear of the unit, while the antenna is connected via a BNC connector.

A suitable wiring harness is available separately for the FSG 90. Additional accessories for aircraft installation as well as mobile and stationary applications are also available.

Important Note:

Installation of an approved aviation radio in an aircraft must be carried out in accordance with the applicable airworthiness, regulatory and technical requirements for the respective aircraft. The required approvals and installation requirements should be verified before installation.

Scope of Delivery:

Walter Dittel / f.u.n.k.e. Avionics FSG 90 VHF/AM Aviation Transceiver

Wiring harness and additional installation accessories are not included unless explicitly stated and are available separately.

The Walter Dittel / f.u.n.k.e. Avionics FSG 90 is a proven solution for users who place particular emphasis on ruggedness, reliability and long service life. With 8.33/25 kHz channel spacing, 99 channel memories, 6 watts of transmitter output power and a compact 2¼-inch installation format, the FSG 90 provides a professional VHF/AM communication solution for aircraft as well as appropriately approved ground and mobile applications.