R-863 / IZH1.101.012

R-863 / IZH1.101.012 onboard command aircraft radio station

R-863 is an onboard command aircraft radio station designed for telephone radio communication between aircraft crews, helicopters, ground control points and other aircraft. The radio station operates within line-of-sight radio coverage and supports communication in both VHF and UHF aviation bands. According to the consolidated passport, the product name is Radio Station R-863, with passport decimal number IZH1.101.012 PS. In technical and operating documentation, the cipher IZH1.101.012 may be used for the R-863 radio station, its documentation set or related system identification.

Communication function of R-863

The R-863 radio station provides onboard command voice communication for aircraft and helicopter crews. It is used for two-way telephone radio communication with ground control points and other aircraft. The system supports amplitude modulation, frequency modulation and frequency telegraph operation, depending on selected mode and equipment configuration. The radio station also supports standby reception on emergency frequencies.

R-863 application on helicopters and aircraft

R-863 is used on military, transport and special-purpose aviation platforms, including helicopters of the Mi family where installed by aircraft documentation. Typical helicopter application may include Mi-8MT, Mi-17, Mi-171 and related configurations equipped with compatible command radio communication systems. It may also be installed on transport aircraft and other aircraft types requiring VHF/UHF command radio communication in line-of-sight range.

R-863 frequency ranges and channels

The R-863 operates in two main frequency ranges: VHF and UHF. The VHF range covers 100–149.975 MHz, while the UHF range covers 220–399.975 MHz. The channel spacing is 25 kHz, with a total of 9200 communication channels. The radio station is designed for stable operation after warm-up and supports fast transition between operating channels according to the technical documentation.

Transmitter and receiver operation

The transmitter output power is specified separately for the VHF and UHF ranges. Under normal aircraft DC power conditions, the transmitter provides not less than 10 W in the VHF range and not less than 8 W in the UHF range. Under destabilizing operating factors, output power may decrease according to documentation, and emergency power operation is also provided. The receiver sensitivity depends on range, operating mode and emergency receiver conditions.

R-863 system composition

The R-863 has a block-type structure and includes several functional units. The visible passport supply set lists receiver-exciter units, transmitter, shock-mount frames, control panel, indicator unit, matching unit, Block No. 31 and documentation items. Some listed emergency receiver positions are visible in the passport table, but no quantity is clearly marked for them in the provided image; therefore, they should be confirmed against the original passport before being included in a supply offer.

Product Type: Onboard command aircraft radio station
Designation: R-863
Alternative Designations: Р-863, IZH1.101.012, ИЖ1.101.012, Radio Station R-863
Product Name from Passport: Radio Station R-863
Passport Decimal Number: IZH1.101.012 PS
Related Documentation Cipher: IZH1.101.012RE / IZH1.101.012TU, where applicable by documentation
Function: Two-way telephone radio communication between aircraft crews, helicopter crews, ground control points and other aircraft
Application / Where Used: Aircraft and helicopter command radio communication systems
Typical Helicopter Application: Mi-8MT, Mi-17, Mi-171 and related Mi-family helicopters where applicable by documentation
Typical Aircraft Application: Military, transport and special-purpose aircraft equipped with compatible VHF/UHF command radio systems
System / Installation Area: Onboard command radio communication system
Frequency Range, VHF: 100–149.975 MHz
Frequency Range, UHF: 220–399.975 MHz
Channel Spacing: 25 kHz
Total Number of Communication Channels: 9200
Frequency Stability: ±1200 Hz after 15 min readiness time
Modulation Types: AM, FM and frequency telegraphy
Transmitter Output Power, Normal Conditions: Not less than 10 W in VHF range; not less than 8 W in UHF range
Transmitter Output Power, Destabilizing Factors: Not less than 7 W in VHF range; not less than 6 W in UHF range
Transmitter Output Power, Emergency 18 V Supply: Not less than 3 W
Telegraph Speed: 300–4800 baud
Emergency Receiver Fixed Frequencies: 121.5 ± 2.5 MHz in VHF range; 243 ± 5 MHz in UHF range
Power Supply: 27 V DC ±10%
Emergency Power Supply: Down to 18 V for up to 30 min
Power Consumption, Reception: Not more than 50 W
Power Consumption, Transmission: Not more than 200 W
Readiness Time After Power-On: Not more than 5 min; after frequency stabilization, not more than 15 min
Channel Switching Time: Not more than 1.5 s
Receive / Transmit Transition Time: Not more than 0.5 s
Operating Altitude: Up to 20,000 m
Operating Temperature Range: −60 °C to +60 °C
Maximum Relative Humidity: 98% at +40 °C
Technical Documentation: Consolidated passport IZH1.101.012 PS; operating manual / technical description IZH1.101.012RE; technical conditions IZH1.101.012TU, where applicable

Supply Set According to Visible Passport Quantity Marks

Receiver-Exciter: Block No. 1 — 1 pc / Receiver-Exciter: Block No. 1P — 1 pc
Transmitter: Block No. 2 — 1 pc
Shock-Mount Frame: Block No. 5 — 1 pc
Control Panel: Block No. 10A — 1 pc

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.