f.u.n.k.e AVIONICS Electronic Radio ATR 833S

The f.u.n.k.e. AVIONICS ATR833S is an exceptionally compact and lightweight VHF/AM aviation transceiver with 8.33 kHz and 25 kHz channel spacing, designed for installation in a standard 57 mm / 2¼-inch instrument panel cutout. As the modern successor to the proven ATR500, the ATR833S combines simple and intuitive operation with digital signal processing, 6 watts of transmitter output power, Dual Watch and an integrated voice-controlled intercom.

Weighing only approximately 380 g, the ATR833S is one of the lighter certified aviation radios in its class. Its lightweight housing makes it particularly attractive for gliders, motor gliders, ultralight aircraft and other aircraft where low weight is an important consideration.

The ATR833S covers the VHF aviation communication frequency range from 118.000 to 136.975 MHz and supports both 8.33 kHz and 25 kHz channel spacing. It therefore meets the requirements for 8.33 kHz channel spacing used in European aviation communication.

With an RF transmitter output power of 6 watts, the compact radio provides powerful and reliable communication for a wide range of aircraft.

The ATR833S uses modern Digital Signal Processing (DSP). Digital processing begins directly after the first intermediate frequency and is complemented by digital audio signal processing. This provides stable transmitter performance and clear, intelligible radio communication.

A particularly useful feature of the ATR833S is its integrated Dual Watch function, allowing two frequencies to be monitored simultaneously. While communicating on the active frequency, the standby frequency can be monitored for incoming transmissions.

The integrated voice-controlled intercom supports up to four microphones and features automatic detection of the connected microphone type. Standard and dynamic microphones can therefore be integrated into a variety of cockpit and headset configurations.

If an external intercom or audio system is already installed in the aircraft, the internal intercom function of the ATR833S can be disabled.

An additional external audio input is available for integrating other audio sources into the radio's audio system.

For frequently used frequencies, the ATR833S provides 20 freely programmable frequency memories. Stored frequencies can be assigned individual names, making airport, FIS and other regularly used frequencies easy to identify and recall.

In addition, the radio automatically stores the 10 most recently used frequencies, allowing them to be quickly recalled without having to manually re-enter the complete frequency.

The bright two-line LCD display provides a clear overview of the most important information. The proven display concept of the ATR500 has been further developed for the ATR833S and enhanced with additional symbols.

The deliberately straightforward operating concept makes the ATR833S particularly suitable for pilots who value simple and intuitive operation. This is also an advantage for flying clubs and shared aircraft, where the aircraft may be operated by many different pilots.

With dimensions of only 65 × 65 × 163 mm, the ATR833S requires very little installation space. It fits the widely used 57 mm / 2¼-inch round instrument format.

The wide 11 to 30 V DC supply voltage range allows operation in both typical 12 V and 24 V aircraft electrical systems.

Various wiring adapters and wiring harnesses are available for the ATR833S. Depending on the existing installation, this can simplify the replacement of older aviation radios without requiring the complete electrical installation to be rebuilt.

The ATR833S is ETSO approved and meets the applicable European requirements for use as a VHF aviation communication transceiver.

Features:

Modern VHF/AM aviation transceiver

Successor to the proven ATR500

8.33 kHz and 25 kHz channel spacing

Frequency range: 118.000 – 136.975 MHz

Compliant with 8.33 kHz channel spacing requirements

6 W RF transmitter output power

4 W audio output power

Modern Digital Signal Processing (DSP)

Digital audio signal processing

Stable transmitter performance

Dual Watch technology

Simultaneous monitoring of two frequencies

Integrated voice-controlled intercom

Intercom for up to 4 microphones

Automatic microphone type detection

Standard and dynamic microphones supported

Internal intercom can be disabled

External audio input

20 freely programmable frequency memories

Frequency memories with individual names

Quick recall of the 10 most recently used frequencies

Bright two-line LCD display

Simple and intuitive operation

Particularly suitable for flying clubs and shared aircraft

Compact 57 mm / 2¼-inch installation format

Weight only approx. 380 g

Wide supply voltage range

Suitable for 12 V and 24 V aircraft electrical systems

Various wiring adapters available for retrofit installations

ETSO approved

Technical Specifications:

Model: f.u.n.k.e. AVIONICS ATR833S

Device type: VHF/AM Aviation Transceiver

Frequency range: 118.000 – 136.975 MHz

Channel spacing: 8.33 kHz / 25 kHz

RF transmitter output power: 6 W

Audio output power: 4 W

Signal processing: Digital Signal Processing (DSP)

Dual Watch: Yes

Intercom: Integrated / voice controlled

Supported microphones: Up to 4

Microphone types: Standard / dynamic

Automatic microphone type detection: Yes

External audio input: Yes

Frequency memories: 20 named memory locations

Recently used frequencies: Last 10 frequencies can be recalled

Display: Two-line LCD display

Supply voltage: 11 – 30 V DC

Current consumption, receive: approx. 220/120 mA

Current consumption, transmit: approx. 1.3/0.65 A

Dimensions: approx. 65 × 65 × 163 mm

Installation format: 57 mm / 2¼ inch

Weight: approx. 380 g

Approvals / Standards:

ETSO-2C169A

Transmitter Class 4 & 6

Receiver Class C, E, H1 & H2

ETSO-2C128

EASA Approval: EASA.21O.10060316

Dual Watch:

The integrated Dual Watch function allows two frequencies to be monitored simultaneously.

While the active frequency is used for radio communication, the standby frequency can be monitored for incoming transmissions. This makes it easier to monitor or transition between airport, FIS and other relevant frequencies.

Integrated Intercom:

The ATR833S features an integrated voice-controlled intercom supporting up to four microphones.

Automatic microphone type detection simplifies the use of different microphone and headset configurations. Both standard and dynamic microphones are supported.

If an external intercom or aircraft audio system is already installed, the integrated intercom can be disabled.

Ideal Successor to the ATR500:

The ATR833S was developed as the modern successor to the proven ATR500.

A range of wiring adapters is available for the radio. Depending on the existing installation, this can make replacing an older radio with the ATR833S considerably easier.

Before replacing an existing radio, the aircraft wiring, connector pin assignment and applicable installation requirements must be verified.

Installation:

The ATR833S is designed for installation in a standard 57 mm / 2¼-inch instrument panel cutout.

With dimensions of only 65 × 65 × 163 mm and a weight of approximately 380 g, the radio is well suited to cockpits with limited installation space and aircraft where low weight is particularly important.

Thanks to its 11 to 30 V DC supply voltage range, the unit can be used with both 12 V and 24 V aircraft electrical systems.

Installation must be carried out in accordance with the applicable airworthiness, regulatory and technical requirements for the respective aircraft.

Scope of Delivery:

f.u.n.k.e. AVIONICS ATR833S VHF Aviation Transceiver

Device connector

Wiring harness and additional installation accessories are available separately unless explicitly stated otherwise.

The f.u.n.k.e. AVIONICS ATR833S is an excellent choice for pilots and aircraft owners looking for a lightweight, compact and easy-to-operate 8.33 kHz aviation transceiver in the standard 57 mm format. With 6 W transmitter output power, Dual Watch, an integrated voice-controlled intercom, 20 named frequency memories and a weight of only approximately 380 g, the ATR833S combines modern technology with straightforward operation. As the successor to the ATR500, it is also particularly attractive for suitable retrofit and modernization projects.