Summary

The ISIS UHF uplink/UHF downlink transceiver is a full-duplex communication system for CubeSat TT&C applications. The radio can operate in commercial bands of the UHF frequency spectrum. It is low power, low mass, and highly configurable, offering the flexibility of changing data rates and frequencies in flight. This radio is tailored for CubeSat missions and cross-compatible with other subsystems such as onboard computers and antenna systems.

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Last updated: 2020-12-11

UHF uplink/UHF downlink Full Duplex Transceiver

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Specs

mass
75 g
length
90 mm
width
96 mm
height
15 mm
power consumption
0.48 W (receiver only)
4 W (transmitter on)
supply voltage range
6.5 — 20 V DC
operating temperature
-20 to 60 C
data interface
I2C
transmit power
27 dBm
transmit modulation
Binary Phase Shift Keying (BPSK) with G3RUH scrambling
transmit frequency
267 to 273 MHz
datalink layer protocol
AX.25
HDLC
receive frequency
312 to 322 MHz
receive modulation
Frequency Shift Keying (FSK) with G3RUH scrambling
sensitivity
-104 dBm Sensitivity for BER 1E-5
transmit data rate
1200 b/s
2400 b/s
4800 b/s
9600 b/s
receive data rate
9600 b/s

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