How not to build a QMX... | HamRadio скачать в хорошем качестве

How not to build a QMX... | HamRadio

In this epic (=boring and long) video I give my experience with building the High-Band QMX transceiver from QRP Labs and plenty of bad advice. The first part of the video describes some of the problems I had. In the second part we look at the diagnostics menu and what my QMX shows there. I think it is mostly OK and functional. I did one successful (but tough) POTA activation with it, however I also saw some weird behavior and of course that makes you wonder... Make sure to also watch the QRP Labs video "52 tips for building your QMX successfully". This video contains a treasure trove of information that helps avoiding common mistakes! Timestamps: 00:00 Intro 00:11 Deboxing Timelapse 00:55 Tilted power connector 03:15 Fixed inductor and diode orientation 05:24 Squeezing toroid windings 07:23 RWTST transformer and SWR bridge 09:18 Trifiliar coil 09:50 Burning off of enamel on the THIN wire 11:08 General impression and advice 12:01 Tips on building the control board 16:24 Building the LCD board 21:08 Diode mod. on Q508 23:10 USB port problems / Usage 25:00 QMX Terminal menu 25:43 Random observed failure with RX filter sweep 26:46 Audio filter sweeps 28:17 RF filter sweeps 30:20 Image sweeps 31:19 SWR sweeps 32:18 TX output power on all bands 34:07 Outro Music: URL: https://remix.kwed.org/remix/6951 Title: Myth Arranger: Eivind Sommersten Composer: Jeroen Tel #hamradio #amateurradio #qmx