# SATEL-TR489 Radio Module

A compact multi-band OEM transceiver module combining licensed 403–473 MHz operation with license-free 902–928 MHz frequency hopping for the United States and Canada.

- Product page: https://catalog.satelusa.com/products/satel-tr489/
- Category: Radio modems
- Status: current
- Part numbers: YM8820, YM8825
- Manufacturer: SATEL Oy
- Image: https://catalog.satelusa.com/images/products/satel-radio-module.webp

## Overview

SATEL-TR489 combines multiple radio technologies in a compact transceiver module for embedded OEM applications. The United States and Canada variants can switch between licensed 403–473 MHz narrowband operation and the license-free 902–928 MHz ISM band, allowing one hardware platform to support different radio networks and deployment requirements.

On 400 MHz, the module supports SATEL 4FSK, 8FSK and 16FSK modes with selectable channel widths, forward error correction, addressing, repeater operation and channel lists. On 900 MHz, it uses frequency hopping with selectable bands, patterns, channels and zones. Compatibility modes support interoperability with established SATEL products and selected third-party radio protocols on the corresponding frequency band.

The RF-shielded PCB is intended for integration into battery-powered and space-constrained host equipment. Configuration and firmware management are available through SATEL NETCO DEVICE, SATEL Configuration Manager and SL commands. The SATEL-B2 motherboard can add power regulation, RS-232 connectivity and alternative mounting arrangements.

## Highlights

- Selectable 403–473 MHz and 902–928 MHz operation in one module
- Up to 1 W transmitter output on both North American bands
- Multiple SATEL and third-party radio compatibility modes
- Compact RF-shielded PCB for host-device integration

## North American variants

- **YM8820:** United States/Canada 400/915 MHz model with AES128 encryption support
  - Region: United States and Canada
  - AES128 support: Supported
- **YM8825:** United States/Canada 400/915 MHz model without AES128 encryption support
  - Region: United States and Canada
  - AES128 support: Not supported

## Specifications

### 403–473 MHz radio

- **Frequency range:** 403–473 MHz
- **Tuning range:** 70 MHz
- **Channel width:** 12.5, 20 or 25 kHz; 50 kHz subject to availability
- **Modulation:** 4FSK, 8FSK and 16FSK
- **Carrier power:** 0.01, 0.02, 0.05, 0.1, 0.2, 0.5 or 1 W
- **Receiver sensitivity:** Down to typically −115 dBm, depending on modulation, channel width and FEC
- **Maximum radio data speed:** 28,800 bps
- **Typical power consumption:** 0.94 W receiving; 6.8 W transmitting at 1 W RF output

### 902–928 MHz radio

- **Frequency range:** 902–928 MHz
- **Spreading method:** Frequency-hopping spread spectrum
- **Modulation:** 2-GFSK
- **Hopping bands:** 7, user selectable
- **Hopping patterns:** 15 per band; 105 total, user selectable
- **Hopping channels:** 50–112, user selectable
- **Frequency zones:** 16 zones with 7 channels per zone
- **Carrier power:** 0.01, 0.02, 0.05, 0.1, 0.2, 0.5 or 1 W
- **Receiver sensitivity:** Typically −109 dBm at BER 10⁻⁴
- **Radio data rate:** 115.2 kbit/s
- **Typical power consumption:** 0.42 W receiving; 4.3 W transmitting at 1 W RF output

### Data interface and configuration

- **Electrical interface:** CMOS-UART with 1.8–3.3 V I/O
- **Serial data speed:** 9,600–115,200 bps
- **Interface connector:** 20-pin, 1.27 mm pitch socket
- **Air-interface encryption:** AES128 on supported variants; AES256 available as a DRM option
- **Configuration:** SATEL NETCO DEVICE, SATEL Configuration Manager or SL commands

### Mechanical and electrical

- **Operating voltage:** +3.8–5.5 VDC
- **Functional temperature range:** −30 to +70 °C
- **Storage temperature range:** −40 to +85 °C
- **Vibration tolerance:** Up to 25 g at frequencies up to 2 kHz
- **Construction:** PCB with sheet-metal RF/EMI shielding
- **Dimensions:** 57 × 36 × 6.9 mm
- **Weight:** 20 g
- **Antenna connector:** 50 Ω Hirose U.FL-compatible connector

### North American approvals

- **FCC ID:** MRBSATEL-TA43
- **ISED certification:** 2422A-SATELTA43

## Compatibility

- SATEL-EASy+
- SATEL-TR4+
- SATEL Proof-TR489
- SATELLINE M3-TR9
- FreeWave and Intuicom 900 MHz networks

## Documents

- [Product brochure](https://catalog.satelusa.com/documents/satel-tr489/SATEL-TR489_3_2025.pdf) (datasheet)
- [Integration Guide](https://catalog.satelusa.com/documents/satel-tr489/SATEL-TR489_IntegrationGuide-v2.0.pdf) (guide, version 2.0)

## Related products

- [SATEL-B2 Radio Motherboard](https://catalog.satelusa.com/products/satel-b2/)
- [SATEL-TR4+ Radio Module](https://catalog.satelusa.com/products/satel-tr4-plus/)
- [SATELLINE M3-TR9 Radio Module](https://catalog.satelusa.com/products/satelline-m3-tr9/)
- [SATEL Proof-TR489](https://catalog.satelusa.com/products/ym6930/)