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I really do appreciate all the help everyone is offering, really gives me hope that I can get this working. As to the RF probe that Arv posted, I knew I had seen it before. It's part of the build

Given that the problem is on audio Rx and the BFO mixer seems to work for? Tx I would try to lash up a known good high Z audio amp eg LM358 set at gain of 50 or so? with an earpiece and try moving

I should have said you need to subtract the Tx idle current instead of the Rx idle current. Sent from an iPhone, don't ask whose.

Arv, Thanks, I really appreciate the help. I'll have to find a club member who'll let me borrow their scope. I was eyeing a Rigol DS1054Z, but really can't justify the price for the limited times I'll

You also need to subtract the Tx idle current. You can find this by keying up the mic with no audio input. This current is mainly the bias current in the finals but also the relays and some other

Hi Joe, You could separate the brown wire that feeds the Drains of the finals and measure just that current. It will probably not be substantially different from the way you did it - subtracting the

The population is likely to continue for at least another generation.

Dave AI6K Having two uBITX boards that both do not receive well is interesting. Normally one would be able to compare a working board with a non-working one. Don't know what test equipment you might

Hey guys, I will probably have a watt meter in the coming weeks but I still haven’t measured my power out on the uBitx. So with a dummy load hooked up I took some power measurements with my DMM. I

It amazes me the problems people are having. I have only put one of these together, but I had absolutely no trouble. Used it for many WINLINK contacts. Before that I had a bid ex 40 which I also got

On my v4 boards, first one is latest CEC firmware (1.1), and 2nd board is stock firmware. I hooked up my 706MkIIG to a mag-mount 10m antenna, picked up WWV just fine. Nothing on uBitx's. Tuned in some

The question was "whether there would be a version 5 of uBITX". Nothing to do with open or closed source for unrelated equipment from a different vendor. Arv _/_

Will this agc work on a early model BITX 40 and where can a find a wire up diagram to the radio thanks

Just remember that the QCX/QSX products are not Open Source if that feature happens to be important in your situation. James

The use of AXICOM relays for the LPF switching does appear to allow the uBITX to meet FCC requirements relative to harmonics based on what others have observed. The results variation relative to relay

dear nsk, did you make the ubitx yourself? or bought? if bought , you had raduino, right? little more clarity please

Spare Radiuno is not listed on hfsignals.com But you have to send an email to hfsignals@... they will guide you to the process of buying a spare radiuno 73 de vu2pop Sent: Thursday, November 01,

QSX from QRP-LABS is coming soon, so you should start :))

are there any plans in place for a v5 uBitx? need to know if I need to startpitting pennies back to purchase it. -- 72 and God bless KD4EPG

We don't actually use the onboard switch anymore. We have gone to a separate toggle switch for power, mainly because the rig then "comes up" at the last volume level. That said, our needs are likely