SATEL-TR4+
SATEL-TR4+ is a UHF data transceiver module in a lightweight single board structure. It is designed to be integrated into a host device, e.g. to transfer GNSS correction data in a land surveying rover or RTK base station. This module uses the 403 …473 MHz frequency range and has selectable channel spacing. Models with AES encryption support are available.

SATEL-TR4+ is supplied without a housing in PCB format with RF-shielding, facilitating installation into the customer’s own housing or into a host device. The radio module configuration can be done with the SATEL SL-commands or SATEL Configuration Manager software.
SATEL-TR4+ is compatible with widely used SATEL radios, such as SATELLINE-M3-TR4, -EASy, -Easy Pro , SATEL-EASy+ and also with other manufacturers’ radio protocols.
Motherboards
For easy assembly SATEL offers motherboards, SATEL-B2, which can be ordered separately. Three variants: horizontal 26-pin header connector, vertical 26-pin header connector or horizontal 26-pin header connector with D15 adapter.
The radio module is assembled with four screws on the motherboard. Following HIROSE U.FL compatible antenna connector options are available: TNC, BNC, SMA, MCX and MMCX (in the picture is TNC).
Frequency | 403…473 MHz |
Tuning range | 70 MHz |
Channel width | 12.5 kHz / 20 kHz/ 25 kHz (software selectable) |
Encryption support | AES128 as default / AES256 as an order option |
Modulation | 4FSK, 8FSK, 16FSK, GMSK *) |
Power consumption, typical | TX 4.8 W @1 W / RX 0.89 W |
Carrier power | 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1 W programmable |
Size / Weight | 57 x 36 x 6.9 mm / 20 g |
*) Ask availability
• SATEL-TR4+ with AES128 encryption support (YM7470)
• SATEL-TR4+ without AES128 encryption support (YM7475)
• SATEL-TR4+ with AES128 encryption support, DTE connector at TOP (YM7480)
• SATEL-TR4+ without AES128 encryption support, DTE connector at TOP (YM7485)
• SATEL-TR4+ OA complies with the requirements of the Dutch KAR (Korte Afstand Radio) specification for Public Transportation data communications (YM7440)
Motherboards packages
• SATEL-B2-TR4+, MP1 with AES128 encryption support, horizontal 26-pin connector (YR7470)
• SATEL-B2-TR4+, MP1 without encryption support, horizontal 26-pin connector (YR7475)
• SATEL-B2-TR4+, MP2 with AES128 encryption support, horizontal 26-pin connector + D15 adapter (YR7470)
• SATEL-B2-TR4+, MP2 without encryption support, horizontal 26-pin connector + D15 adapter (YR7475)
• SATEL-B2-TR4+, MP3 with AES128 encryption support, vertical 26-pin connector (YR7470)
• SATEL-B2-TR4+, MP3 without encryption support, vertical 26-pin connector (YR7475)