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UHF uplink/VHF downlink


The ISIS UHF/VHF transceivers are full duplex communication systems for CubeSat TT&C applications. The two variants of this product are TRXUV (UHF uplink/VHF downlink) and TRXVU (VHF uplink/UHF downlink). Both radios can operate in commercial and amateur bands of the VHF/UHF frequency spectrum and are low power, low mass, and highly configurable, offering the flexibility of changing data rates and frequencies in flight. These radios are tailored for CubeSat missions and cross compatible with other subsystems such as on-board computers and antenna systems. Both the TRXUV and the TRXVU are flight proven since 2012 and 2016 respectively, with over 75 units delivered.


length90 mm
width96 mm
height15 mm
mass85 g
voltagemin: 6.5 V, max: 12.5 V
power1.7 W
power0.2 W
frequencymin: 145.8 MHz, max: 146 MHz
transmit power23 dBm
baud rate9600 bps
frequencymin: 435 MHz, max: 438 MHz
baud rate1200 bps
sensitivity-104 dBm
full datasheet


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Last updated: 2018-04-23