SATEL-TR489 Radio Module

SKU: YM8820 / YM8825 (US) Categories: ,


SATEL-TR489 is a mixed band UHF data radio transceiver module in a lightweight single PCB. It supports operation in the 400, 800, and 900MHz frequency bands (band support varies by region).

It features Satel’s latest 400MHz radio, allowing up up 14.4kbps with FEC on a 12.5 kHz channel or 28.8kbps with 25 kHz channels. For sensitive applications, industry standard AES 128-bit encryption is available. This small, light module is designed to be integrated into a host device, for instance for transfer of GNSS correction data in a land surveying rover or RTK base station.

In addition to the 400MHz band, the TR489 also offers operation in the 800MHz and 900MHz license free bands (depending on region). For the US market, the 900MHz band is used, with data rates of up to 115.2kbps.

400MHz compatibility spans a wide variety of SATEL modems with the 3AS/EASy protocol, with additional compatibility modes allowing for inter-operation with other radios including Leica, Topcon, Pacific Crest, Trimble, and others.

Additional information

Frequency Range

403 to 473 MHz

Tuning Range

400MHz Band: 70MHz, 800MHz Band: 20 MHz, 900MHz Band: 26 MHZ

Carrier Power

10 mW to 1 W

Receiver Sensitvity

up to -115 dBm, depending on modulation and error correction (see product brochure)



Data Interface Speed

up to 115200 bps

Electrical Interface


Packet Throughput

400MHz Band: up to 28.8kbps (25kHz), up to 14.4kbps (12.5kHz), 800 MHz Band: up to 38.4 kbps, 900 MHz Band: up to 115.2kbps

Interface Connector

1.27 mm pitch socket

Antenna Connector

HIROSE U.FL compatible type (adapter cables available for TNC, SMA, MCX, MMCX etc.)


AES 128-bit (optional)

Operating Voltage

3.8 – 5.5 VDC

Power Consumption

400 MHz Band: 940 mW RX / 6.8 W (TX @ 1W), 800 MHz Band: 960 mW RX / 5.6 W (TX @ 0.5W), 900 MHz Band: 420 mW RX / 4.3 W (TX @ 1W)

Operating Temperature Range

-30 °C to +70 °C

Size (H x W x D)

57 x 36 x 6.9mm



YM8810: SATEL-TR489, region all, with AES128 encryption support

YM8815: SATEL-TR489, region all, without AES128 encryption support

YM8816: SATEL-TR489, region all, without AES128 encryption support, DTE connector at TOP

YM8820: SATEL-TR489, region US/CA, with AES128 encryption support

YM8825: SATEL-TR489, region US/CA, without AES128 encryption support

Additional regional variants are available, including Australia and EU.

SATEL-TR489 Datasheet

Integration Guide: User Guides/Manuals