Support
We strive to answer all customer questions as soon as possible. Please visit the VIAVI Solutions contact us page for questions.
Legal Documents
- Purchase Order Terms & Conditions
- Sales Terms & Conditions
- Counterfeit Policy
- Conflict Minerals Policy
- JLT Privacy Policy
- JLT Anti Human Trafficing Policy
- JLT GDPR Policy
Product Manuals
- CLAW GPS Simulator
- CSAC GPSDO User Manual
- DROR-II User Manual
- FireFly-1A User Manual
- FireFly IIA User Manual
- FireFly-1C Manual
- FireFox User Manual
- Fury User Manual
- GPSTCXO/LC_XO Firmware Upgrade Manual
- GPSTCXO/OCXO User Manual
- HD CSAC Low Power User Manual
- HD CSAC User Manual
- JLT Antenna Kit Installation Manual
- LC 1x1 User Manual
- LC_XO User Manual
- LC-XO-Plus GPSDO Kit User Manual
- LN CSAC User Manual
- Low Noise Rubidium GNSDO User Manual
- LTE-Lite SMT Module User Manual
- M12M Replacement Receiver User Manual
- Micro-JLT User Manual
- Micro-Transcoder(tm) User Manual - NEW!
- Mini-JLT User Manual
- Mini-PCIe Module User Manual
- PhaseStation 53100A User Manual - NEW!
- RCM Reference User Manual
- RSR CSAC Module User Manual
- ULN-1100 User Manual
- ULN-2550 10/25/100MHz User Manual
Release Notes
Windows compatible Control Program Downloads
- Download GPSCon for Jackson Labs Tech, Inc. products ==> NEW FOR 2022!
- JLTerm: Firmware update program for STL-2600, CLAW, Transcoder, PNT-622x, and Micro-JLT
- Download SimCon User Control Application for CLAW and RSR GNSS Transcoder
- Download Z38xx Plot Program ==> Graphical Performance Plotter for all GPSDO products
Engineering Change Notices (ECN's)
- 80200698 dated 05/18/2022 for LC_XO third generation GPSDOs fw 1.101
- 80200699 dated 04/11/2022 for FireFly-1A and LC_XO second generation GPSDOs fw 0.932
- 80200697 dated 04/11/2022 for FireFly-II-based second generation GPSDOs fw 3.17
- 80200672 dated 08/02/2021 for FireFly-IIA - second generation processor update
- 80200670 dated 07/07/2021 for LC_1x1
- 80200668 dated 08/02/2021 for LC_1x1 - second generation processor update
- 80200667 dated 06/11/2021 for Mini-JLT - second generation processor update
- 80200571 dated 11/16/2018 for LC_XO - second generation processor update
- 80200593 dated 04/21/2021 for FireFly-1A - second generation processor update
- 800200569A dated 06/14/2018 for Mini-JLT - adding secondary 10MHz connector J6
- 80200584 dated 06/25/2020 for all Fury GPSDO
- 80200580 dated 02/25/2020 for the RSR Transcoder, Micro-Transcoder, and CLAW GPS Simulator
- 80200575 dated 04/17/2019 for the Mini-JLT
- 80200576 dated 04/19/2019 for LC_1x1 (GPS-500)
- 80200577 dated 04/28/2019 for fw. 2.42 for all Crystal Oscillator based GPSDOs
- 80200573 dated 12/17/2018 for all CSAC products
- 80200572 dated 11/20/2018 for Claw/Transcoder 1.15 firmware update
- 80200563 dated 10/11/2018 for M12M GPS Replacement Receiver
- 80200568 dated 06/12/2018 release notes 0.74 for all JLT CSAC Products
- 80200567 dated 05/01/2018 for all JLT products capable of operating with >15V supply
- 80200566 dated 05/01/2018 for CSAC GPSDO and LN CSAC GPSDO
- 80200565 dated 03/19/2018 for Mini-JLT-GNSS fw 3.05
- 80200557 dated 02/21/2018 for LTE-Lite and Mini-PCIe modules
- 80200558 dated 11/17/2017 for LN Rb GNSDO fw 1.12
- 80200559 dated 11/17/2017 for Mini-JLT GNSS fw 3.04
- 80200560 dated 11/17/2017 for M12M Replacement Receiver fw 1.33
- 80200552 dated 1/27/2017 for fw 2.45
- 80200541 dated 11/25/2015 for LN Rb GNSDO fw 0.36
- 80200540 dated 11/25/2015 for M12M fw 1.1
- 80200525 dated 6/15/2015 for fw 0.73 and 2.44
- 80200524 dated 2/16/2015 for CSAC based products operating specifications changes
- 100-001-000126 dated 3/18/2014 for fw 0.71
- 100-001-000125 dated 8/2/2013 for fw 2.41 and 0.70a (2 of 2)
- 100-001-000124 dated 7/19/2013 for fw 2.41 and 0.70a (1 of 2)
- 100-001-00123 dated 12/18/2012 for fw 0.929
- 100-001-00122 dated 12/18/2012 for fw 2.39
- 100-001-00121 dated 10/10/2012 for fw 0.66
- 100-001-00120 dated 10/04/2012 for fw 2.38
- 100-001-00116 dated 06/01/2012 for fw 0.60, 2.35, and 0.928
- 100-001-00115 dated 02/28/2012 for fw 0.57 and 2.32
Latest Firmware Upgrade Downloads
- Download firmware Rev 1.24 for Micro-Transcoder
- Download firmware Rev. 1.24 for RSR Transcoder
- Download firmware Rev. 2.45 for FireFly-1C, FireFly-IIA, ULN-xxxx, GPS-405, LC_1x1, Mini-JLT
- Download firmware Rev. 0.932 for LC_XO-G2 with updated processor only - NEW!
- Download firmware Rev. 1.24 for all Fury GPSDO - NEW!
- Download firmware Rev. 0.46 for Micro-JLT-GNSS - NEW!
- Download firmware Rev. 1.24 for CLAW GPS Simulator
- Download firmware Rev. 2.49 for LC_1x1 (GPS-500)
- Download firmware Rev. 3.06 for Mini-JLT-GNSS
- Download firmware Rev. 0.75 for CSAC GPSDO, LN_CSAC GPSDO, and DROR-IIA
- Download firmware Rev. 1.15 for LN Rubidium GNSDO
- Download firmware Rev. 1.42 for M12M Replacement Receiver
- Download firmware Rev. 0.929a for GPSTCXO/GPSOCXO, LC_XO, M9107/9108 two versions: 1PPS Asynchronously enabled after power-on, and no 1PPS until GPS fix version
- Download firmware Rev. 0.929 for FireFly-1A
- Download Fury2 firmware Rev. 1.22
Legacy Firmware and FW Update Instructions
- Download CSAC firmware Rev. 0.66
- Download LN CSAC firmware Rev. 0.66
- Download FireFly-1B firmware Rev. 0.926b
- Download FireFly-1A firmware Rev. 0.926 16MHz
- FireFly-IIA Firmware Revision 0.915 and Later Upgrade Manual
- Fury2 firmware upgrade instructions
- Philips LPC2000 Flash ISP Utility, V2.2.3 (Windows)
- Command Line Flash ISP Utility lpc21isp (source to be compiled on Linux or Windows)
FireFox Downloads
Related Whitepapers and Documents
- Multi-Aspect Radar Algorithms (MARA) Application Note using FireFly-IIA - NEW!
- Using GPS in Precisions Timing Applications (HP)
- Long Term Stability in GPS Timing Applications (HP)
- Motorola M12+ Precision Timing Receiver
- Critical Evaluation of the Motorola M12+ GPS Timing Receiver vs. the Master Clock at the United States Naval Observatory, Washington DC.
- Stratum Levels Defined
Product Brochures
- Fury GPS Disciplined Oscillator (GPSDO)
- FireFox Broadband Synthesizer – OEM Model
- FireFox Broadband Synthesizer – Desktop Model