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News
August 2021 newsletter
July 2020 newsletter
2019 archive
2018 archive
2017 archive
2016 archive
Kits
QMX+ 160-6m multi-mode transceiver
Mod: power delivery by paddle!
SSB Beta firmware
Modifications
Bringing SSB to QMX
WSPR corruption?
Fixing QLG3 E108 module firmware issue
QMX multi-band transceiver kit
QCX-mini 5W CW transceiver kit
QCX+ 5W CW transceiver kit
QDX Digital Transceiver
QDX-M 5W Digital Transceiver
Ultimate3/3S QRSS/WSPR kit
U4B - Balloon tracker
50W Amp for QCX
Ultimate relay-switched LPF kit
GPS receiver kit QLG2
GPS receiver kit QLG3
10W HF Linear PA
Low Pass Filter
Band Pass Filter
Si5351A synthesizer
Si5351A VFO/SigGen
ProgRock2 triple programmable crystal
50-ohm 20W dummy load
Receiver module
Polyphase network
Clock
QCX-series AGC module
Digi VFO
Morse trainer
Morserino M32 Pocket
APRS trackers
LightAPRS tracker
LightAPRS 2.0 tracker
LightAPRS-W (+WSPR) tracker
LightAPRS-W 2.0 (+WSPR) tracker
LightTracker Plus 1.0
Enclosures
Ultimate3/3S case
VFO/SigGen case
Clock case
Custom case
Blank case
QCX enclosure
50W Amp enclosure
Retired kits
QSX all-band all-mode transceiver
5W HF PA kit
QCX 5W CW transceiver kit
OCXO/Si5351A synthesizer
ProgRock - triple programmable crystal
GPS receiver kit QLG2-SE
GPS receiver kit QLG1
GPS Module SKM61
GPS Module SKM52
GPS Module VK16E
QRSS Arduino shield
Ultimate2 QRSS kit
Ultimate QRSS kit
30/40/80/160m QRSS TX kit
Arduino shield
High Altitude Balloons
The Circumnavigators
Tracking
Flights
Ocean Tracking
Fleet II transatlantic sailboat crossing
C3
MyDream
Misc. Info.
App Notes
Discussion group
QCX Challenge
QCX WARC Party
Shipping information
Beware imitations!
QCX - uSDX... Clones?
FAQ
Links
Bank transfer
3-D printed enclosures
Contact
Support
//top\\ Download .net Framework 4.8.1 Offline May 2026
ndp481-x86-x64-allos-enu.exe /quiet /norestart (For silent/unattended installation)