I am new to the forum and have a question regarding SWR limits and the QDX. I have been told by a friend that short excursions into unmatched loads will damage the output transistors. I have an ELECRA

Hey, GB Hoyt here, KG4GVL, I received a QCX last year, and have been slowly putting it together. This week I succeeded! Last night I successfully went through the four alignment steps in the manual, a

I have a mWattmeter but cannot find the docs. Any help will be appreciated. thanks, Paul K0ZYV

I just ordered the QDX digital transceiver. Since I'm now living in an apartment, QRP seems the best route to still get on the air, and I want to work on my CW after having it rust a bit. The QCX mini

I'm a great believer in "borrowing code" Can I cut and paste into the u4 text editor R

Not sure what I'm doing wrong, but I'm unable to TX anything with WSPR using my new U4B. The TELE command works fine and I can confirm radiated output on a nearby KiwiSDR, but when I use WSPR I see th

Hi, I would like to see what other owners of the u4b tracker try to program into their devices. Is it possible to share files, maybe in the files section ? Maybe a separate folder can be created ? Tha

I started up my QDX version 3 and was able to receive FT8 using WSJTX on a Raspberry Pi 4. When I try to transmit, I get an error: Rig Failure Hamlib error: IO error port_open: serial_open(/dev/ttyACM

What is the least expensive and most compact/lightest implementation of a workable QDX interface to something other than a 14" laptop ? Like a 5" LCD, Rasberry Pi, and Battery Pack ? A small notebook

Hi Hans, Any delivery time estimate for batch #3 delivery? I was on the over-ordering list from batch #2. Kinds regards and 73

I received my shipping notification yesterday, and the QDX arrived today via USPS Priority mail. This is the fastest I have ever received anything from QRP Labs! Are they being kitted and shipped from

Hi all The QDX boards arrived here yesterday lunchtime. I've been building and checking and I'm happy. *So let's open sales, 1800Z, Sunday 1st May 2022! * *http://shop.qrp-labs.com/qdx <http://shop.qr

Ordered a 0.47F cap from Newark Electronics. I've not used these before. Do the arrows point to the negative side? (^) Tnx, Chuck AC7GZ z

I posted on this topic 1.5 years ago. There were some thoughtful responses, some containing terminology I couldn't understand because I have so little knowledge of what actually happens when I connect

Off to Hamvention in a few days: Ordered one of the last available. Question: I want to build it for the 630M band. That means not installing all of the great engineering Analog RF stuff that he has p

Are the toroids supplied in the QCX Plus kits the same for each band? Is the difference between LPF packages supplied, depending on the chosen band the same, just the number of winding required? In ot

Hi all As you know I don't like pre-orders however I have to consider my sanity too... and so I have put 950 QDX batch #4 in the shop http://shop.qrp-labs.com/qdx - again keeping 5% for contingency. I

Hi Guys, Found these on Aliexpress: https://www.aliexpress.com/item/1005002027434719.html?pdp_npi=2%40dis%21USD%21US%20%2410.00%21US%20%2410.00%21%21%21%21%21%400bb0623016525873868413758eb7ec%21%21sh&

Hi Everyone, Wondering if anyone can confirm if the Deluxe 6-band U3S kit is capable of TX and RX on 6m (with appropriate filter kits), if I purchase an additional 6m LPF and BPF kit? Is that true? on

New to these incredible kits and the QRP LABS a learning experience. Built a clock kit with GPS and it worked so good my bride let me put it in our camper. Anyway…. Bought a U4B version 002 firmware a