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Can you check those voltage readings at the tab again. 12.4 volts at idle but rising (rather? than "dropping" ) to 13.8 volts when you push PTT? What is your battery voltage again? Something also

ok, 140 mA on receive, 1.5 Amp on transmit. Much better. Relays sounding good too.

Also, I tried these things: I measured voltage for the IRF510 at the heatsink (the tab is connected to it). 12.4 volts on idle, but when I press PTT it seems to drop to 13.8. The final is blown, so

Ok guys. I couldn't do too much tonight. Blowing the work truck engine has thrown today off for me entirely. But, I did do these things: I measured the amps the right way...with the switch off. .14

pete just posted big boots for ubitx. they are on the blog. get it here http://bitxhacks.blogspot.in/2017/12/adding-external-linear-amplifier.html - f

Thanks!

According to Farhan, it’s hfsignals AT gmail.com (the groups.io software filters email addresses, so I am spelling it out) -- Karl Heinz - K5KHK

I tried to send an inquiry this evening about my 10th December DHL order to hfsignals@..... First I tried hfsignals@...,?but that was rejected. so I tried hfsignals@...?and that was

Ryan, I suppose that Farhan already replied that his new schematic is correct and that ghe would update the sections odf description soon. Happy seasonal festivals. sarma vu3zmv regards Sarma

Either leave the switch off and use your ammeter to make the connection, Or interrupt the wire, interposing your ammeter, and then turn the switch on. Just as Vince pointed out, either way works.

I have one of these and have used it with the BITX40 VFO/TFT PCB. I need to finish up an article I'm working on before I hook it up to the Teensy. It does work with the Mega 2560 Pro Mini. Jack,

Vince is asking, to make sure that you are forcing all the current to go through your ammeter, by leaving the switch in the off position so all the current has to go through the ammeter. If the

Very helpful photographs. Sorry about your truck engine..... Hope that is not a huge problem for your family.. The way you have worded, your single point ground is the negative side of the power

Craig: I can bring some of my TFT/VFO PCB's that can be used with the BITX40. I sell them for $8, but since I won't have to ship them, I can sell them for $5. Let me know if I should bring some. It

Wow!! UBITX, is here in Ventura, CA. I ordered it on the 9th and it arrived by DHL about 30 minutes ago on the 18th.? Nine days, not bad at all.Nice package, well packed in a nice plastic box inside

Thats the start of a meter bar. Maybe Mike has a power meter or S meter. I've got plans for Signal, Power and a possible AGC as the front end attenuator. Raj

Yes....thank you. Much easier that way

Ordered on the 10th, packaged arrives yesterday (18th)here in the Philippines.. -- ###Mhon###

You can still do it that way, just leave the switch off. Measure from where the positive comes in to the lunchbox to the radio side of the on-off switch and leave the on-off switch off. The ammeter

assuming that you are seeking to measure the full current drawn by the BITX, you need to remove one of those positive wires, either that attached to the rear power plug or the switch - in fact either