12 April 2024

Just arrived (10 days from Japan) I’ve worked for a couple of hours to assemble the U3S Deluxe kit from QRP Labs, later I wanted to try the GPS receiver for my LF activity by Spectrum Lab, so I made the smoke test giving 5 volts to the GPS receiver.

100_4492After a while all LEDs were working and Spectrum Lab was disciplining my audio board.

The GPS receiver was positioned inside my lab room, close to the window, it was capable to find 7 or 8 satellites.

1pps and Data Out has been connected to the input of sound card of my laptop and finally I saw a perfectly synchronized system.

gpsok

An now it’s time to try the rest of the kit after winding the LPF.

Here is the U3S without the LPF:

100_4494 100_4496