QMX GPS dongle
We calculate the final price from your selected file. You review and accept it before payment.
Saved on this device.
Inexpensive way to set Maidenhead grid and UTC time on QMX in the field very accurately. Power comes from USB-A plug.
- Rating
- 0 / 5
- Likes
- 5
- Downloads
- 28
- Makes
- 0
- Views
- 364
- Reviews
- 0
Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution
Small GPS dongle for the QMX to set time and Maidenhead.
Items used:
GPS used is a Beitian BE-280 with allows for 9600 bps and the 1Hz pulse. (https://www.amazon.com/dp/B0BV6295F9)
3.5mm TRS jack (https://www.amazon.com/dp/B09PFZ8XKP). Tapped the hole in the base with a M8x1 tap.
USB-A Pigtail (https://www.amazon.com/dp/B0BS6WHP3R)
TTL to USB adapter (https://www.amazon.com/dp/B00LODGRV8)
Optional: JST MX 1.25 Connector Kit (https://www.amazon.com/dp/B0DSFNXRQ5)
Pre-work:
The BE-280 comes preprogramed with a higher baud than what the QMX wants to see (9600). You need the “u-centersetup_V22.07.zip” file from https://www.beitian.com/en/h-col-129.html. Additionally, I needed the driver for the TTL-USB adapter (https://www.silabs.com/software-and-tools/usb-to-uart-bridge-vcp-drivers?tab=downloads) as well as Visual Studio 2013 runtime libraries (https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170) Follow the instructions on the attached PDF to change the baud rate.
Instructions:
- Tap TRS connector hole with M8x1.0 tap
- Solder 6ish cm JST MX pigtails to the tip, ring, and sleeve of the 3.5mm jack and tread into hole. Do no allow wires to twist.
- Solder USB 5V to PIN 5 pad and GND to PIN 2 pad on GPS unit. Alternately, splice GND with wire coming from 3.5mm Sleeve and solder a JST MX pigtail to the USB 5V and connect to PIN 5.
- Create JST MX connector. (Follow diagram)
- Put everything into place and snap on the lid.