I've been trying all day to figure this out. When I program a "MESSAGE" field, like: TEST #CS #M4 In JTDX I see my received message cut off at thirteen characters. Even inserting the callsign and

Hello Hans. I do not get reliable GPS signals for my Ultimate3. I have built a Nixie clock from PV Electronics that needed sync. but GPS was not available inside the house. Their solution is a wi-fi

Hi all, bit of a newbie query here. So ive built the receiver module and got it hooked upto my Ultimate3s. Ive not built the polyphase and ive got it hooked up to an external Asus Xonar U5 soundcard

I have some newbie questions: I'm building a TX/RX QRP station to be controlled by a "homemade" Pi2 tablet.   Currently, the RX is Soft66, which uses a crystal, and thus doesn't track automatically wi

Some time ago, I built a ProgRock kit. It worked great when finished. It was set up on the workbench and connected to some test equipment. It was left running and after three days the Si5351A chip die

Alan, out of curiosity what was the delta time of U3B1 today ? 73 Jan

Today you can see a few spots from U3B1 over Libya on habhub.org. Should it not send spots even if the GPS stops working? Or have it drifted to much for anybody too see it, and needed some time with t

I see a lot of confusion on the email reflector about how to do the current bias method described in section 7 of the assembly guide. https://www.qrp-labs.com/images/ultimate3s/assembly_u3s_r3_a4.pdf

Hi I have bought 2 shields with multiple filter kits add on relay boards as a project for my radio club and I am coming to the conclusion that there is not a sketch that can be used to make up a fully

I just completed the ultimate 3S kit. It includes the relay board, GPS module, and 5W power amp. These are my problems/questions: 1. I'm testing using FSKCW with no start up delay. The RF path I hav

Hi All   -   Just a diagram to see if the group emails can support diagrams. Antenna detail above and Control detail below.   Just a test   . . .   VK6JY

Chris Wilson 19 June 2017 I doubt this is anything to do with my U3S but thought I would ask here as well as on the WSJT forum. I am new to using JT9 and although I get good solid reports from

The image below is what a AIS night time anchor plot for the POLAR PRINCE (CG3EXP) looked like at anchor over a 5 hour night time period ("time exposure" AIS image courtesy MarineTraffic.com). If you

The transmitted locator seems faulty. Today it is jumping between FN14ka and FN14sf. Yesterday it showed mainly FN14ka. Have the GPS lost contact with the satelites? 73 Jan SM7ETW

Hi, how can I generate in the FSK mode an RTTY signal with 45Baud and 170Hz Shift as baking signal? Is that possible? I am looking forward to hear from you. 73 Reinhard DL3AS

I am able to receive my own transmission using a SDR receiver located 5 m away. The signal is as expected, clean etc. I am using battery supplies 5 V and 9 V for PA.  Finally got around to build a dum

Since day-one my QLG1 unit has not shown a 3D fix. It's a stock build and I've had the unit operational for about 2 months now. Currently the unit is displaying A-- F10 T10 S35. I'm not sure I underst

Hi QRP Labbers Yesterday Dave VE3KCL launched the first test flight of the QRP Labs "U3B" balloon tracker development. U3B-1 was launched from a boat in Parry Sound, Canada. Due to high winds at launc

I've got a just built Ultimate 3S running cw beacon mode with a frame time of 1 minute. This works fine. However the instructions lead me to believe during the idle time I should be able to get it in

I have bought and assembled two of the gps kits. The first one is a stand alone located a the end of a 2 meter cable using the supplied patch antenna, works great. Shows A3D F08 T11 S32 on the u3s dis