Need a liitle help. What rig do you select in logging software to use the "cat' on the qcx+? I see the port in my Device manager, but from there I am lost. Don...w2xb (using aclog by n3jfp)

Most of the "12V" power supplies sold to hams are really 13.8V supplies out of the box. (Many of them can be adjusted with an internal trimmer.) A lot of ham gear is designed to operate best at that

Finals are ok !

Hi all This problem has always come up at intervals on this group. It used to be that we could blame suspect capacitors for being lossy since several were found on occasion. Not any more! All

Define kaput, and what item? Likely fried the finals in the morning and during the day repeated tries finished the job. THe PS I can only guess about. Allison ------------------------------- Please

Apart from soldering issues, this must be the most confounding disincentive for faint-hearted wonnabe QSX+ers ... There must surely be a concise winding-checklist for genuine

just been playing with the 25mhz tcxo for q"C"x+ in a U3s. QRSS is good to 2 meters! a little drift to start due to other components, BS170's ect, then it settles down nicely! Much better than the fox

In addition to Allison's comments, the filters are designed to work with 50 ohms input impedance and 50 ohms output impedance. If either of those impedances are not 50 ohms the filter cutoff

All working well on WSPR for weeks This morning the display is acting weird and the buttons are sometimes not responsive This afternoon the display stats flashing on and off with smell of burins from

Also PCB conductor size and spacing are a factor as well. For example 100W is 1.4A into 50 ohms so heavier and larger relays become a factor. 20W is easy 50W takes care, more is significant

Phil, THe AL used for winding of toroids has a variation of 10-15% so depending on how tightly wound plus individual batches you get variation. The Iron powder material is really like many high

Len, Attached above is my input regarding an “antenna tuner” question asked last week. 73, Bob – KG5SQJ

I've completed a 20M QCX+ and have just fixed a friend's 30M QCX+. Both are working nicely, but at 13.1 volts I get about 3watts output on both, using the onboard RF tool to measure (and less on my

Hi, what is the gauge of the magnet wire supplied with the QCX+ kit for the toroids and transformer? Also, is there a particular antenna tuner or tuners that have been found to be most useful with

The left button (S2) completes a series circuit between R44 (3.3K) and R46(10K), with R44 going to +5V and R46 going to ground. If the right button (S3) works properly then R46 is probably not the

On Tue, Sep 8, 2020 at 07:32 AM, Dave wrote: Give it a bit of a tap. That might change things.That fixed 90% of the problems I ever had with my original Nintendo!

Just hit them all with a soldering iron. You'll know it when you find it. Mike WM4B

Great. Last week at our LARC Kit Building session I examined a members soldering, by looking closely at the component side of the board. When a joint has had the right amount of heat, flux and solder

Thanks Dave, a few taps on the back of the display and all was bright again. Finding the dodgy joint may take longer! David G4DMG

Blimey Justin! Really pleased that it sorted your problem. My QCX has been powered up virtually every minute since and works like a charm. I've gone up a license class since and just waiting to sit