hear hear, come on Hans, how about an update on the QSX to get us all excited about something else..pleeease. 73 Ken g4apb

I often wonder why wspr was coded to allow for powers up to 1kw for supposedly a ‘weak signal mode’ and doesn’t cater for the uW levels. I also miss the earlier versions that showed who was only monit

I'm not sure I'd agree with the argument that so long as a spot is recording then there's nothing to worry about. It's a fat lot of good to me not having access to a spot several hours later when I'm

For the benefit of others following this thread, the beta version Hans sent me is working well now. many thanks again Hans. 73 Ken G4apb

Hi Hans, same here with 1.03a, showing Monday local day of week on Friday13th. Have not tried the update you sent me yet but is it worth it now? I have to do a lot of dismantling to replace the chip i

Hi Hans, version c1.03a installed. 2 line display, but multi-segment lines with 4 second pauses. I see rapidly changing #GT and #GS numbers (alternating between 4 and 9 in #GT and 20/27 in #GS for exa

Hi Jim, I suggest you replace IC1, as that is the interface to the U3S. 73 Ken g4apb

You don’t mention it but have you set the menu option GPS {Mode. Baud} to something other than 0 for the first field? Are you seeing number of satellites found etc on the display? 73 ken g4apb

#gps #u3s

I built both BB filters to the PO design shown earlier. one in a plastic box unscreened, and one covered in copper tape to screen it. I measured both responses so I know they are built correctly. If I

#40m #tvi #dtv #u3s #wspr

Hi all, both of the filters I am using the braid breaker type of high pass filter. I have one right on the input to the freeview box and another in the attic to the input of the tv distribution amp. E

#40m #tvi #dtv #u3s #wspr

I have put the filter before the amp (thought I said that). All the other tvs fed from the amp don’t suffer interference, just this Humax box. 2m and 70cms have always been no-no’s in this house anywa

#40m #tvi #dtv #u3s #wspr

I built one of the filters and did some measurements:- the roll off freq is around 220MHz with a loss at 70Mhz of around 20dB. Using the Signal Quality indicators on my brand new Humax Youview decoder

#40m #tvi #dtv #u3s #wspr

I have asked similar before of Hans but for the CAL to be a choosable frame rather than default at the end of sequences. In the case of my bandhopping U3 Rx using v3.12a at the moment, i use all 16 fr

#u3s

Does the display work ok if you disconnect the rotary encoder totally? 73 Ken g4apb

The output from the l/q outputs of the receiver is very low and meant to feed a pc soundcard input. You are unlikely to hear anything on headphones. Even if you had the polyphase ssb module I found I

The display contrast can be affected by the supply volts. Maybe your 5v line is dipping. Try a large value electrolytic cap across the supply lines. 73 Ken g4apb

I recently bought a bt youview box and kept getting that problem and returned it for a refund as i thought it was faulty, I realised now that I was running my U3S on 4m (70mhz) = 7mhz x 10?? at the ti

#40m #tvi #dtv #u3s #wspr

Are using the latest v3.12a firmware in your U3S and set the pa control settings as per the manual? 73 Ken g4apb

with the 4.7k trimmer completely off and then slowly bring it up during TX but I get nothing. with no rf input you should see the dc current input rise as you increase the pot. if this is not happenin

You really need to build the polyphase network module to get an SSB output and run the latest version of wsjt-x. For alignment you could add an audio amp and tune for max audio while tuned to the freq