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QDX L12 winding
#qdx
#help
I *just* got done doing this myself and caught the same error, and guess what... it doesn't matter. The electrons aren't nearly as biased about the subject as we are ;) Video will be up tomorrow in fa
I *just* got done doing this myself and caught the same error, and guess what... it doesn't matter. The electrons aren't nearly as biased about the subject as we are ;) Video will be up tomorrow in fa
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By
Ryan Flowers
· #87966
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QDX Rev 3 Build Video Series
And the second one is uploaded finally: https://www.youtube.com/watch?v=Uy054JZjor4
And the second one is uploaded finally: https://www.youtube.com/watch?v=Uy054JZjor4
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By
Ryan Flowers
· #87949
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QDX Rev 3 Build Video Series
Hey everyone, here is the first in the series! It's on the too-long side, but... it is what it is. It's installing all the capacitors and also the diodes, and the capacitors took some real time. The d
Hey everyone, here is the first in the series! It's on the too-long side, but... it is what it is. It's installing all the capacitors and also the diodes, and the capacitors took some real time. The d
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By
Ryan Flowers
· #87926
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QDX Rev 3 Build Video Series
Thanks everyone for the input! I've chosen a format, and while the first video is on the long side (it's an intro + the first two bits of the build) the rest will remain as short as is reasonably poss
Thanks everyone for the input! I've chosen a format, and while the first video is on the long side (it's an intro + the first two bits of the build) the rest will remain as short as is reasonably poss
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By
Ryan Flowers
· #87875
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TX on 80 & 40... but not on 30 & 20... reasons??
#problem
Or rather the other way around the 30 and 20 are enabled in firmware.
Or rather the other way around the 30 and 20 are enabled in firmware.
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By
Ryan Flowers
· #87867
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TX on 80 & 40... but not on 30 & 20... reasons??
#problem
Be sure to go into the firmware and make sure that 40 and 80 are enabled there :-)
Be sure to go into the firmware and make sure that 40 and 80 are enabled there :-)
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By
Ryan Flowers
· #87866
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QDX Rev 3 Build Video Series
To be clear: The streams would be recorded as well :)
To be clear: The streams would be recorded as well :)
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By
Ryan Flowers
· #87828
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QDX Rev 3 Build Video Series
Hey everybody, I'm late getting my QDX rev3 build going because of this little thing called LIFE getting in the way! But I'm going to do a YouTube series about it. Since I already did a series for the
Hey everybody, I'm late getting my QDX rev3 build going because of this little thing called LIFE getting in the way! But I'm going to do a YouTube series about it. Since I already did a series for the
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By
Ryan Flowers
· #87826
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QDX V3 USB Device Descriptor Failed ?
#qdx
You said that you connected it to USB and then powered it on. This is backwards. Powered on and let it boot up first and then connect it to USB, otherwise USB will not recognize it. You're in the home
You said that you connected it to USB and then powered it on. This is backwards. Powered on and let it boot up first and then connect it to USB, otherwise USB will not recognize it. You're in the home
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By
Ryan Flowers
· #85523
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Crap on the QRPLabs Mailing List
I run some groups. I have moderated or owned several forums going way back. The "junk" on this list is absolutely minimal. And Hans' live-and-let-live approach is spot on for it. I know, because I tri
I run some groups. I have moderated or owned several forums going way back. The "junk" on this list is absolutely minimal. And Hans' live-and-let-live approach is spot on for it. I know, because I tri
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By
Ryan Flowers
· #84699
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QDX Build suggestion
I write "18T" or "32T" or whatever with a small permanent marker on the bottom edge that's still exposed.
I write "18T" or "32T" or whatever with a small permanent marker on the bottom edge that's still exposed.
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By
Ryan Flowers
· #84577
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QDX rev 2 Minor Issue
#qdx
Make sure you are running the latest version of the firmware also. I forget what the exact issue was but some early versions of revision 1 had similar issues until there was an update. Perhaps the sam
Make sure you are running the latest version of the firmware also. I forget what the exact issue was but some early versions of revision 1 had similar issues until there was an update. Perhaps the sam
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By
Ryan Flowers
· #84531
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QDX Vers 1
A solder connection, sorry.
A solder connection, sorry.
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By
Ryan Flowers
· #84380
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QDX Vers 1
For those following along, I have been in contact with Howard and he mentioned to me that he found a solder that wasn't up to par or was missing. Not sure. Either way it was a builder error :-) I know
For those following along, I have been in contact with Howard and he mentioned to me that he found a solder that wasn't up to par or was missing. Not sure. Either way it was a builder error :-) I know
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By
Ryan Flowers
· #84370
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12V to 9V Converter : QDX ?
HAHA yeah I made the assumption that he was probably ordering a Rev 3... but in retrospect I should have specified! If it's a Rev 1, just build it for 9V and stick an LM7809 in front of it all. Avoid
HAHA yeah I made the assumption that he was probably ordering a Rev 3... but in retrospect I should have specified! If it's a Rev 1, just build it for 9V and stick an LM7809 in front of it all. Avoid
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By
Ryan Flowers
· #84120
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12V to 9V Converter : QDX ?
Just set it up for 12 V, it's not a problem. :-)
Just set it up for 12 V, it's not a problem. :-)
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By
Ryan Flowers
· #84095
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Accidentally removed R7 and R8 from qdx board
#problem
#smd
#qdx
#help
Yeah, you could fix them with through-holes. No problem. Note how they are all connected together: I'd just connect one side of them to the SMD pad that goes to the inductor, and the other end to the
Yeah, you could fix them with through-holes. No problem. Note how they are all connected together: I'd just connect one side of them to the SMD pad that goes to the inductor, and the other end to the
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By
Ryan Flowers
· #83295
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lowly Tech...QDX
QDX's bands aren't bound just by the filters but also the firmware. Hans has said he'll do a high band version in the future :) As for now, get that General and stop worry about it. The General is eas
QDX's bands aren't bound just by the filters but also the firmware. Hans has said he'll do a high band version in the future :) As for now, get that General and stop worry about it. The General is eas
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By
Ryan Flowers
· #82965
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10W Linear PA
Thanks for the correction, sorry for the misdirection! I should've read more closely and put more thought into my reply.
Thanks for the correction, sorry for the misdirection! I should've read more closely and put more thought into my reply.
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By
Ryan Flowers
· #82831
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10W Linear PA
What makes you think you did something wrong? The output isn't linear across all bands. The higher bands definitely need more drive. What you're displaying looks pretty normal to me. If you bump up th
What makes you think you did something wrong? The output isn't linear across all bands. The higher bands definitely need more drive. What you're displaying looks pretty normal to me. If you bump up th
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By
Ryan Flowers
· #82752
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