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Re: Si5351A output buffer
I have to shrink iPhone photos to get them to show. -- Colin Kaminski - K6JTH https://www.qsl.net/k6jth/
By Colin Kaminski · #90593 ·
Re: Artwork for "Manual Days" Chinese Antenna Tuner
I designed some knobs and a new project case to fit the Manual Days ATU. The description and STL files are available at https://www.thingiverse.com/thing:5460017. If anyone here is interested I can
By Denny WY2A · #90592 ·
Re: Win7 + QDXv2 not recognised #troubleshooting #qdx #w7
I appreciate all the help guys. I could never get the software to work for the QDX so I gave it to a coworker who's a digital guy. He's made a bunch of contacts. All's good. chris KD4PBJ
By Chris Waldrup · #90591 ·
Re: QDX: Receiving great but needs more audio output gain in order to xmit for more than 250 milliseconds.
Tnx, Evan. Will look into ur suggestions tmw. 73, 'Willie', N4QA
By n4qa at_hotmail.com <n4qa@...> · #90590 ·
Re: QDX: Receiving great but needs more audio output gain in order to xmit for more than 250 milliseconds.
Willie, This first step is to do a very close and?thorough inspection of the board for shorts or bridges between traces. What happens when you use the Terminal Transmitter Test program?? Does it
By Evan Hand · #90589 ·
Re: Questions about adjusting QDX RF output by changing supply voltage
Charles.? There is no problem in changing supply voltage while the? QDX is on or indeed transmitting.? That is provided you can do this without any spikes that take the voltage above the
By G3SPL · #90588 ·
Re: QDX burned on start-up
Hello Alexander, Sorry to hear that your QDX failed.? Based on what you have described, I believe that Q7 failed when or more of the BS170s failed.? I would be prepared to replace all 5 of the
By Evan Hand · #90587 ·
Re: QDX: Receiving great but needs more audio output gain in order to xmit for more than 250 milliseconds.
Hey Willie ( Willie or Will is what my dad, W4MAI,sk 2006 used to call me ). My linear regulated supply is a 15 volt max, 2A max jobby that seems to be working nominally. Presently set for 12 vdc, 1
By n4qa at_hotmail.com <n4qa@...> · #90586 ·
Re: QDX: Receiving great but needs more audio output gain in order to xmit for more than 250 milliseconds.
Power supply capacity? Try a different supply? 73, Willie N1JBJ
By William Smith · #90585 ·
Re: QDX burned on start-up
Alexander, Sorry that you ran into trouble with your QDX. I think the first place to look is whether or not Q7, the reverse polarity protection FET has shorted to ground. That would give you the low
By Al Holt · #90584 ·
Re: QDX with Bluetooth? #qdx #bluetooth
Mine runs off a raspberry pi. Why not put it at the antenna then just use wifi of the pi to remote desktop into it from a tablet or laptop? David W5CWT
By David (W5CWT) · #90583 ·
Re: QCX-mini repair question BNC connector #qcxmini #bnc #parts
I just bought a pack of 10 (identical ones) for $11 on Amazon. https://www.amazon.com/gp/aw/d/B07XZ88418?psc=1&ref=ppx_pop_mob_b_asin_title David W5CWT [email protected]> wrote:
By David (W5CWT) · #90582 ·
Re: QDX: Receiving great but needs more audio output gain in order to xmit for more than 250 milliseconds.
Thanks fellas but no joy. No rf feedback, no audio processing, all volume settings at max.? 2 repetitive Status LED flashes each time she trips until I stop the xmsn. The thing is, for a quarter of a
By n4qa at_hotmail.com <n4qa@...> · #90581 ·
Re: QCX-mini repair question BNC connector #qcxmini #bnc #parts
I misspoke. I enlarged a washer hole to mount the regular BNC.? 72, Bob KI0G
By Bob Cutter · #90580 ·
Re: QCX-mini repair question BNC connector #qcxmini #bnc #parts
I had a similar problem.? With metal snips I cut off the circuit board corner where the BNC went, enlarged the case hole to fit a regular BNC and soldered wire from the lead to the center pin
By Bob Cutter · #90579 ·
Re: What to do when the moderator is busy working VK* on 20m. #qdx
Hi Tony Hi hi, yes you are right, I was having a nice chat with VK5CZ. I think it's the 4th time I've QSO'ed with him on JS8 with my QDX at 5W to OCFD antenna. He uses 50W and a simple dipole at his
By Hans Summers · #90578 ·
Re: Si5351A output buffer
Did the last message have a picture attached to it?? If so, it doesn't come up in my browser.? I have been able to follow most of the description of the circuit from the text but a picture of the
By Hugh McCullough · #90577 ·
QCX-mini repair question BNC connector #qcxmini #bnc #parts
I recently built the QCX-mini 40m kit. Being new to kit building, I couldn¡¯t be more thrilled that it works! However, I applied too much heat soldering the BNC female connector. The center pin comes
By Ben KN6QWP · #90576 ·
Re: QDX with Bluetooth? #qdx #bluetooth
I connect the QDX to a raspberry pi that is running WSJT-X. The pi is headless and managed from my phone using VNC. Since the pi and QDX are at the base of the antenna during field use (and battery
By Jonathan Poland · #90575 ·
What to do when the moderator is busy working VK* on 20m. #qdx
Thanks for letting me into the group @Hans. I was the source of the JS8 message reminding you to approve new members. ;7) My QDX V3a is more or less working. I need to adjust L12 to resonate at the
By Tony GM0DHD · #90574 ·