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Hi all: WSPR is addictive! This is my first post to this group, so please be gentle. I have a U3S, running on 3 bands at present, 20, 30, and 40. I am using the relay board to hold two of the

Steve, the transistor arrived last week, and I had some other things that sucked away my time. I just did replace the transistor a few minutes ago and It's now a solid 3 watts to an antenna. Of course

30 Metre QCX on a 12V battery.? Firmware 1.00d Looks like I'm only getting .21 watts out.? WSPR works well at that power but no CW contacts yet.? I'll have to do some more research to try to

To followup, I found the issue with the progrock blinking three times rather than four: a sagging 9V battery I was using for testing. I plugged it into 13.5V from my Astron and it operates as it

Hi Bob, For my qcx20meter I measure with a precision lcr meter every toroids. The L4 for 20 meters on red amidon 10 turn is over the 0.40microH. I found 9 turns is pefect. After initial calibration I

Wow. ?Many thanks. ?I actually have one of QRP Labs dummy loads with that convenient test point for RF. Thanks Nick. I’ll have a look when I’m in the shack. -26c in Sudbury ON this am. brr

Dear Group - added new version of the case to?https://www.thingiverse.com/thing:2661221? This version is to G8MXV's specification and includes more room for the lipo, an on/off switch, battery

Sorry I had the emails displayed wrongly, did not realise this was answered by many and solved, great and sorry for the QRM.

I imagine you have tested this with another rig, as I had a similar sound on my 30m QCX when I had a bad connection between feedpoint and doublet dipole. So I imagine you must have eliminated it being

Julian I've avoided jumping in because I cannot really help. But it seems to me if the display is showing something the 20MHz must be working. I've no idea about voltages but a scope put on the

The idea is to use two SPDT toggle switches instead of the rotary encoder and emulating the behaviour, the signals is described here: https://www.raspberrypi.org/forums/viewtopic.php?t=140250 or

Thanks for your efforts. I've checked the voltage at AVcc, it's exactly 5 volts. Can you check and let me know what voltage you are getting at Pins 9 and 10 please? I get no DC voltage at all, and no

The GPS data lines are the same as the CW/Keyer signals. So be aware the QCX starts transmitting.? (No open antenna , use a dummy load.) I found every first transmision in wspr/beacon mode the BS170

HI Barry. No. You connect a lead onto the RF pin (middle) and then just touch/probe the other end on the antenna connector centre pin. Make sure you have a 50ohm dummy load connected and then key the

If I plug in the gps it is powered, but something in the qcx is overheated. So I quickly unplug it.? gps is working fine still with 3S.? no shorts to ground on the pins. Getting 3.3k ohms between

Looks like your flight is near halfway to South America. Glen N8WE

---- "Bob Sutton via Groups.Io" <zl1rs@...> wrote:

So to read the approximate RF Power out on the QCX... I have to jumper the RF Input pin to the +V Output. Is that correct? Thanks. Barry. ?VE3ZLB

Hi Ernie. Sorry, is this still the FT-8 discussion we were having? I don't have a beacon 3a.

Hi OM, Just bought one, thanks for post. Want to ruggedize a radio for field. This will be internals. ------------------------ Any RPI connection? 73, Steve KL7JT/1 -------------------------