开云体育

Yes, I'm used to being careful with static too (I work in aerospace electronics), so I don't think I have fried anything on the board either.

Cliff, Yes, I recently went through the RF sweeps on all of the bands and they don't look anything close to what's in the operation manual.? I just rewound L401 because it looked like I had 20 turns

Has anyone tried or been successful using a MAT-705 Plus tuner with their QMX? My MAT-705 Plus works great with an IC-705 and I'd love to dual-purpose it with the QMX. I have a QRPoMeter between the

Rob, I placed two pictures on the Discord QRP page where you asked the same. Carel PA0CMU

Chris, A potential issue with the QDX is a spike at the end of a transmission over the 60-volt specified limit of the BS170.? The TN0110 is a possible solution, EXCEPT that it must be installed

Chris, I thought someone had been playing with higher SWR on TN0110s? Ahh, here it is: /g/QRPLabs/message/102260 and /g/QRPLabs/message/103918 With the TN060s. And

After one heck of a build effort and some minor troubleshooting, working FT8 with my QMX and indoor Mag Loop Ant is now possible! Well, its really the Sun Spots doing the heavy lifting, but I will

Evan Thanks for your insight. I have two QDX and two QMX and have replaced BS170s? in all of them, some operator error but some, including my latest QMX 10-20m for no obvious reason.? I see people

Assembled...

I believe this is a brightness not contrast resistor.? I wired it to a 250Ohm pot and installed on the back of my enclosure so I could vary the brightness at will. Bob KG5GTE

Axel, I have all the parts and still purchased PicKit 3 also.? It reduces any errors on my part when making changes. 73 Evan AC9TU

Hello Evan, thanks for the tip. I had already seen this, but it doesn't seem to be that easy. Although I tinkered a bit with an Arduino uno about two years ago, I still have no idea. :) Now I've got

Chris, I assume that AWR is a typo and should be SWR.? If that is correct, then the answer is both, though we have yet to find the specific impedance of an SWR that produces a high enough voltage to

Is it high voltage or dissipation during excessive *SWR* ?

Is it high voltage or dissipation during excessive AWR?

Axel, If you search the web for an Arduino pic programmer, you will find YouTube and other links that show you how to create a PIC programmer from an Arduino.? Unless you already have the parts, it

That's interesting - I have observed the same behavior with my build. I'd earlier built a v1 low band QMX successfully. I ordered and built the v2 high band (for 9 volts) which shows the same behavior

Axel, Be careful, if you change the toroid to 5 turns the maximum allowed power becames 40-50 W. You can frie the PIC controller with more than those 40-50 W. 73s CT4AJ

I have done this, both? to my QDXs Hi-LO and QMX. Until now no problems. 73s CT4AJ

wrp should read qrp. Typo error -- 73, Barb