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It's most likely loaded down by a faulty circuit, not necessarily a short. Maybe a device is installed backwards, check electrolytic caps and semiconductors. Curt

Joe Can you connect a load resistor to the output pin of the regulator to test the 7805 on it's own? I haven't looked to see what current it should be supplying but ohm's law well give you the

*In circuit* , 7805 regulator puts out *2.0* volts.? Of course, transceiver not working. When I check output of regulator with *output pin not connected to circuit, it puts out 5 volt* s. With power

Speaking of the ATU-10, I have a like new, tested good copy for sale. Reason for selling: I decided I like my ZM-2 manual tuner better. These are around $115 shipped from China - followed by the

Is that really confined to the QDX? I find that the sequencing is very important with the YAESU FT991A too.

There's a flaw in the QDX firmware that causes the QDX to not be recognized by Windows if the QDX USB plug is inserted when the QDX is powered on. You might need to plug in the QDX first, then power

Steve, Some Windows programs require that the device be active when the program starts.? Did you try restarting the JS8 program after the QDX is connected to the USB port? 73 Evan AC9TU

Climb a mountain, sail to an island, walk in the park. Whatever takes your fancy! Just live and let live! 73 Hans G0UPLhttp://qrp-labs.com Today I did climb a mountain and used the QDX for a SOTA

40m is unusually quiet here tonight but i managed to get a glimpse of TA4/G0UPL on 40m JS8CALL. Rig is QDX with fw v1.02 feeding a piece of wire (indoors!) through a -6dB resistive SWR bridge. My ERP

Hi Just downloaded and installed JS8call, the CAT setup was successful, but having trouble with the audio side. I can see 2 appearances of QDX in audio devices in Windows 10 Device Manager, but these

What a great statement!

Wow, that guy could sell sand to the Arabs ;-) -- Julian, N4JO.

There won't be. Set your alarm. -- John AE5X https://ae5x.blogspot.com

Orange tint --- years back, I got some sunglasses in an orange tint for shooting out-of-doors. Talk to your optician, I would think.

Cut the part out (unless it's something like a cap or resistor), especially ics and transistors. You are never gonna put it back in. Lift the remnants of each leg with tweezers then clean up with

Hi Andy, On that shot, the supply V was 12.2V and the 4V was after tuning.? Power out fluctuates as it's tuning, according to the readout.? I'm one who reported about burning up the BS170s and IC5

Are you planning to use this for CW only?? Or other modes, too?? Do you plan to run the VFO straight into the antenna, or will there be some kind of amplifier or buffer?

Another idea: Use a 74AC74 or similar flipflop to divide the VFO frequency by 2 or 4. Then use the multipler setting in the VFO firmware to make the display show the divided frequency. Gate the

I am using ATU-10 with QCX, QDX, ICOM 705, Hermes lite 2 perfect... https://www.aliexpress.com/item/1005003234902647.html You can also try OGS-3D (QRP enabled

What is the supply voltage for the QDX? Wondering if the 4.1 watts shown is the output during or after tuning (or both). I assume both, unless you reduce the power output somehow. Reason for asking: