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Hi Chuck I agree, but I would not say that trying settings which other users have found to be effective, would necessarily be exactly "whacking at problems randomly". It could be worth a try. Did

See attached. -Nate N8BTR

Hi Chris It's normal for Ultimate3S, Clock and VFO kits where the enclosures are shipped directly from China where they are custom-manufactured for QRP Labs. We always had them shipped directly.

Nevermind.? ( Thanks, Gilda ) I see Jeff had one that was Version 2. Ill go back to my cave and ponder while the parts get here. 73 Dick W4PID

Hans Summers via groups.io <hans.summers@...> wrote: Stan, Hans, You are both absolutely correct. I: 1. Connected an external, adjustable square wave generator to the oscilloscope,

Just a thought, what frequency are you trying to receive on? Same as the u3s or +1500hz? double check. I can see your spots so you are getting out OK. Can't be much wrong. Andy -- The universe is made

I assume it’s not uncommon to receive QRP labs bits in separate consignments? I received a box and some pots, etc. but no circuit board (VFO order)? I ask because there was nothing in the package to

Thanks all: dummy load it is! And point taken about blowing Mosfets; I am paranoid about that!

Whilst it may be good practice to have a band pass filter for each band I have found that it is not strictly necessary with the receiver module although I am only using an indoor aerial and have no

Oddly now others can decode my 17m WSPR transmissions but I can't. I have looked for a setting in WSJT-X but can't see a 'don't decode my own' box.

Hans, Thank you for your most excellent explanation of the reasons the historic U4B antenna works the best. Tom K1FQY

Thanks for the replies, the screen shows WSPR on the second line of the screen and the call is GW4SYI, my callsign. The U3S uses a QLG1 GPS device for the timing. Is any other info required? Lucien

Hi Adam I watched your new video, thanks. I don't think it is possible for the IC202 output to produce that kind of signal, which looks so perfectly like 25MHz at one timebase then 833 Hz at the

Hi Tony

Hello Hans I am a bit concerned as to whether my e-mails are getting to you? Sent 2 recently but not seen any replies? 73 Ian G4GIR

Thanks again Stan...regardless of how I measure, with power applied, or after hitting the on push button, all I see is supply voltage of 11.94 where the red probe is pointing and maybe 11.83 for the

I'm reading now what you have written. Thanks. hanz

Hello Tom This type of antenna is a monopole antenna, like a 1/4-wave vertical. And like a 1/4-wave vertical, it also needs a groundplane (radials etc). Firstly 1" would be 25.4mm which would not be

Scott, I would make some voltage measurements. These can all be done with just the bottom cover of the QMX removed, via the 8-pin and 6-pin power supply connectors you soldered in.? You just need to

Many thanks Jushua, I have build the qmx plus for 9 volts. For the cae not to use attenuators i am building now a variable output poeer supply based on a lm317 wiith a 2n3055. Many for the points of