HARDWARE / PRODUCTUpdated 24 Jul 2026

Pulsar HSTX

AAC Clyde Space
Pulsar HSTX

The Pulsar HSTX is a high-speed S-band transmitter designed for nanosatellites, offering reliable uplink and downlink capabilities for space missions.

Typed specifications48 values

Discloses 7 of 13 fields engineers filter by in this category (category median 3).

Frequency band
S
amateur · datasheet p.1 S commercial  |  S TX
Mass
100 g
max · datasheet p.2
Frequency range
2 400–2 450 MHz
amateur · datasheet p.1 2 400–2 450 MHz amateur, PULSAR-HSTX-A  |  2 200–2 300 MHz commercial, PULSAR-HSTX-C  |  2 400–2 450 MHz PULSAR-HSTX-A
Envelope (L×W×H)
96 mm x 90 mm x 17.41 mm
datasheet p.2
TX RF output power
0.251 W
datasheet p.1 1 W max  |  0.251 W min · in 2 dB steps  |  1 W max · in 2 dB steps  |  1 W max · RF  +3
Data rate
10 000 kbps
TX (HSTX-A) · datasheet p.1 10 000 kbps max · TX, HSTX-A  |  8 000 kbps max · TX, HSTX-C  |  10 000 kbps TX (HSTX-A)
Modulation
OQPSK
datasheet p.1 QPSK
Supply voltage
5 V
5 V alternative · datasheet p.2 5 V alternative  |  5 V regulated  |  6–12 V
Power consumption
5 W
max · datasheet p.2 5 W max · maximum RF power output  |  5 W max · total, at maximum RF power output
Data interface
SPI
High-speed (payload data) · datasheet p.2 SPI high-speed SPI bus 8 MHz, payload data  |  SPI High-speed, payload data  |  I2C Low-speed (telemetry and control)  |  I2C low-speed I2C bus 400 kHz, telemetry and control  +1
Operating temperature
-25–61 °C
datasheet p.2
Design lifetime
2 years
in LEO · datasheet p.2 2 years LEO
Function
transmitter
datasheet p.1
Link use
payload data downlink
datasheet p.1
RF connector
SMA
50 Ohm SMA connector · datasheet p.2
Connector
50 Ω SMA connector
datasheet p.2
Flight heritage
Tried, tested and trusted on an array of on-orbit missions
datasheet p.1
Satellite class
CubeSat
datasheet p.1
Channel coding (FEC)
convolutional (Viterbi)
1/2 rate convolutional encoding (K=7) · datasheet p.2
Channel bandwidth
500 kHz
channel spacing · datasheet p.2
Board format
PC/104
CubeSat Kit PC/104 form factor · datasheet p.1

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier12 lines, in the manufacturer's own wording
Temperature
-25 to +61 C
Power
<5 W
Supply voltage
6 V-12V (5 V alternative)
Mass
<100 g
Tx SNR
20 dB
Frequency (HSTX-C)
2.2-2.3 GHz
Frequency (HSTX)
2.4-2.45 GHz
RF power
24-30 dBm in 2 dB steps
Channel spacing
500 kHz
Spurious response
<-60 dBc
Design life
2 years in LEO
Dimensions
96 x 90 x 17.41 mm

About

The Pulsar HSTX is a high-speed S-band transmitter developed for nanosatellites, providing reliable uplink and downlink communication for various space missions. While the provided text does not offer extensive details on its specific features, configurations, or applications beyond its general purpose, it is positioned as a key component for satellite communication. The product page also mentions related products like the Pulsar-STX Transmitter & Pulsar-SANT S-Band Antenna bundle, suggesting the HSTX is part of a broader communication solution suite. The emphasis on ‘high-speed’ indicates its suitability for missions requiring significant data transfer rates.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.aac-clyde.space ↗

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