HARDWARE / PRODUCTAdded 13 Jul 2026

A74 Series S-Band Telemetry Transmitter (STX)

ADDNICS Corporation

Original ADDNICS S-band nanosatellite transmitter with QPSK/OQPSK modulation, first flown on SPRITE-SAT (2009).

Key figurescomparable across the catalogue

Mass
0.14 kg
Power
0.1 W
Largest dimension
95 mm
Data rate
0.1 Mbps

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Frequency band
S-band (~2.2–2.3 GHz)
RF output power
0.1 W
Modulation
QPSK/OQPSK (Intelsat IESS-308)
Data rate
Up to 100 kbps
Dimensions
95 x 50 x 20 mm
Mass
140 g
Mission heritage
SPRITE-SAT / RISING (2009)

About

The A74 STX is ADDNICS’s original S-band telemetry transmitter, developed for nanosatellite platforms. It supports QPSK/OQPSK modulation with Intelsat IESS-308 encoding and was the first ADDNICS transmitter to achieve on-orbit heritage, flying on Tohoku University’s SPRITE-SAT (RISING) nanosatellite launched in 2009.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: addnics.co.jp ↗

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