Q-Tech Showcases its Space-Qualified MCXOs and OCXOs at the IMS 2024

Q-Tech Showcases its Space-Qualified MCXOs and OCXOs at the IMS 2024

Q-Tech Corporation one of the leading global suppliers of space-qualified crystal oscillators and high-performance frequency control systems announced its expanded offering of high-stability microprocessor compensated (MCXO) and oven-controlled (OCXO) crystal oscillators. Designed for reliable operation in New Space (low earth orbit) satellite timing and frequency generation applications, the QT2021 Series of MCXOs and the AXIOM75Sx Series of OCXOs meet the critical radiation tolerance specifications required for LEO deployment.

The devices in both series offer a wide range of standard frequencies; the QT2021 MCXOs from 10MHz to 100MHz and the AXIOM 75Sx OCXOs from 10MHz to 400MHz. All are available with either Sine Wave or CMOS logic outputs.

Key features of the QT2021 Series of MCXOs are radiation tolerance to 50kRad(Si) TID, best-in-class frequency stability over temperature (±10 to ±30ppb), single event latch-up (SEL) of 75MeV-cm2/mg (min), high shock and vibration tolerance with G-sensitivity of 1ppb/g, and phase noise floor of -168dBc/Hz (at ≥100 kHz offset). The QT2021 devices’ small form-factor package weighs just 50g, versus comparable ovencontrolled (OCXO) units weighing 100g or more. This significant improvement in size, weight, and power (SWaP) results in a highly preferable MCXO option for a wide array of advanced satellite cluster designs.

Key features of the AXIOM75Sx Series of OCXOs are radiation tolerance to 50kRad(Si) TID, single-event latchup (SEL) immunity (by design), single-event transient (SET) insensitivity, and excellent frequency stability over temperature (< ±50ppb). Their state-of-the-art ultra-low noise performance with a phase noise floor of -180dBc/Hz (at ≥100 kHz offset) enables high up- and down-link satellite bandwidths. Packaged in hermetically sealed enclosures to enhance reliability, the wide available frequency range of the OCXOs, from 10-400MHz, covers many potential New Space applications. 

Click here to learn about space-qualified oscillators from Q-Tech Corporation.

Click here to view other space-qualified oscillators listed on SatNow.

Publisher: SatNow

GNSS Constellations - A list of all GNSS satellites by constellations


Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019


Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017


Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018


Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014


Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013