Finally got around to building the 40m kit. Had an issue with L5 and L6 and thanks to Dave B. and Allan for their corrective guidance. Getting 4 watts from 12 volts so very happy. Now if I had somethi

I know Hans was reorganizing some things, and I'm not sure of the current status on shipping. I ordered a U3S with the 5 watt PA on March 23rd. I ordered the case kit on April 4th and already received

Anyone else having problems with getting order updates or any communications from QRPLABS? I placed an order for a clock about a month ago and other then an order confirmation I've not heard anything

Hi Group, i am in the process of repairing this old kit and trying to get it going again. On power up there were verticle lines appear but no squares or words appear. Please see attached pic if you op

Again, thanks to all for the help to this newbie! Can someone please explain how I use the on-board Voltage and RF Output test options? Where exactly do I put the leads from my DVM, what are the steps

After working correctly for a couple of months the DVM suddenly began to read 8v high. Switching off/on didn't solve the problem, then the LCD readout vanished and the 7805 became very hot. I did not

Hi to All, anyone has experienced the Atmega328 programming with Ponyprog2000? Thanks Aòex ik0vaq

Hello group, can some please send me the link to the trouble shooting page. Thank you Stuart Vk5ade

So I'm really trying to figure out if I've gone horribly wrong in my assembly. When I power up, all I am getting from the speaker is a solid tone - with or without an antenna connected. Shouldn't I be

Hello group, i need help with old U3 i hd laying i managed to destroy the mane chip. When i powering it up there was only a blue display after adjusting the pot r1 still nothing happened no change. Wh

I give up! I've taken a perfectly good functioning 20m QCX into one that doesn't hear anymore and just barely transmits. This thread above recounts my experience, beginning with a smoke event (while u

Me too. Two story house, lots of wiring and plumbing and lighting overhead. K1iff

What are practical limits on the distance of the antenna to the GPS receiver? Or if locating the receiver outside or closer to the outside - what are the practical limits of the 1 PPS signal line? I l

I played around to connect my Elecraft T1 antenna tuner to the U3S via an Arduino Nano. Intention was to match my simple 10 meters wire antenna to the 6 bands on which the the U3S is transmitting. Alt

Hello group, can somebody please advise if this can be done and how to do it and if so with a t/r sequencer. I have been looking around at circuits kits and assembled t/r sequencers but I am not sure

Hi. Can you tell me the connections between the Ultimate3S QRSS / WSPR, PCB QCU REV 1, and the 5W HF PA? Thank you.

Hi, I am looking for suggestions on troubleshooting a transmit problem. I don't have lab equipment. 1. The QCX does not transmit into a dummy load or antenna - using an MFJ - 845 digital SWR/Power met

All: Just finished programming via the “button/slide switch” method and managed to get all the frequencies in the proper registers. I plan to use the ProgRock in a converter for my 80 meter receiver.

Hi all, After looking at the lists recommended mods I did the resistor mod for the LCD and the L5 mod for improper booting up with buttons not working correctly. 6.5 kilo ohm resistor mod made no diff

would anybody else other than myself be interested in bandpass filters for the 6 Meter band, and maybe the lower 630 and 2200 Meter bands? perhaps as an add on kit of parts to alter the existing kits