Hans, QDX Bands Question #QDX Bands
#qdx
Hello Hans, How was your trip?? Are you back yet? Nice presentation at FDIM.? I watched it on Zoom this year.? ( Thanks QRPARCI ). I have a question about the four bands (80, 40, 30, 20m) design...
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Mont Pierce KM6WT
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#85908
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Re: QDX Rev3 L12 upsidedown?
I think you're right.? The one on page 24 does look like it's wound in the opposite direction of the previous pages.? You can clearly see the wire at the start of the windings is coming from
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Mont Pierce KM6WT
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#85907
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QDX Rev3 L12 upsidedown?
Is L12 in the photo on pg. 24 upsidedown? My start of the wire goes over the top and the end goes underneath. I wound it according to the directions, but the one in the photo is the opposite. -- 73,
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Daniel Conklin
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#85906
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Re: Sources for hydrogen/helium in small quantities?
#u4b
That must be old news source. The NWS has been using h2 for a LONG time. Joe KB9KHO Near Space Sciences
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Joe WB9SBD
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#85905
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Re: TNT, 2 weeks, and still waiting..
Hello. The same situation I had in Poland. In may case "at TNT location" it? was custom issue. IMHO TNT is not a good choice. Robert, SP6RGB W dniu 30.05.2022 o?12:46, Christen Fihl pisze: -- SP6RGB
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Robert
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#85904
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Re: TNT, 2 weeks, and still waiting..
It actually help, writing this :-) It now looks like a customs issue actually -- 73 Christen Fihl, OZ1AAB
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Christen Fihl
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#85903
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TNT, 2 weeks, and still waiting..
I would really like an? option to pay like €50 for some real courier service. I ordered ( 56448 ) QCX+ with AGC and 50Watt, and got a delivery date of May-18. It is sadly still in transit, or so
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Christen Fihl
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#85902
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Re: QDX shipment rate
I am content to wait until "last"? :-) Regards,? Ed? G8BQR 57839
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Ed G8BQR
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#85901
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U4 tracking in all bands
Are there plans to get the QRP Balloon tracker to track in all bands. I have been testing th U4 propagation in bands other than 20m I understand the tracker is scraping data from WSPRNet in the 20 m
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Richard Fairman
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#85900
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Re: Did I ruin my U4B?
#u4b
#troubleshooting
The other easy to damage point is C15. It is very close to the HF antenna and can easily be caught up while soldering the dipole. I had mine stick to the soldering iron while trying to burn off the
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Colin Kaminski
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#85899
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Re: Did I ruin my U4B?
#u4b
#troubleshooting
I think you will find that if there is no power at the USB port, the micro controller will not open the data lines to the usb port. I came across this after my cack handed effort to replace D3 after
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tony.volpe.1951@...
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#85898
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Re: Did I ruin my U4B?
#u4b
#troubleshooting
Yes _ I had trouble early on with the USB port which I attempted to repair and somehow caused a short which burned out D3. i replaced that with an ordinary diode - and got it going again, but then it
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tony.volpe.1951@...
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#85897
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Re: 60m QCX mini unusable with EHFW during SOTA
#qcxmini
I use a link-dipole most of the time. It can be made resonant on 80, 60, 40, 30, 20 and 17 metres. Sometimes I also use it on 15 metres with the links set to 40 metres and a little help from a tuner.
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Rick Hewett
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#85896
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Re: 12V to 9V Converter : QDX ?
Very good price for a linear adjustable supply with enclosure.? I ordered two. Mark K9TR
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Mark K9TR
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#85895
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Re: Sources for hydrogen/helium in small quantities?
#u4b
The Hindenberg did NOT have an exterior covering of thermite. That's a myth perpetuated by those wishing to decrease the danger of filling a dirigible or LTA airship with hydrogen. These same people
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Michael - wb6csh
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#85894
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Re: Sources for hydrogen/helium in small quantities? #u4b Thermite
#u4b
The Hindenberg did NOT have an exterior covering of thermite. That's a myth perpetuated by those wishing to decrease the danger of filling a dirigible or LTA airship with hydrogen. These same people
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Michael - wb6csh
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#85893
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Power Up Scare QCX 5 plus
I just finished putting my QCX 5 plus together this afternoon. I had purchased the power cord with connector. I plugged in the power plug in and had the current limit set very low amps with 12 volts
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Glenn Maclean
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#85891
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Re: Sources for hydrogen/helium in small quantities?
#u4b
As reported by some group: * Because of the global helium shortage, the National Weather Service warned that it would need to reduce the frequency of weather balloon launches, according to Axios.
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Mark K9TR
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#85890
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Re: QDX shipment rate
[email protected]> wrote: This one: https://www.dictionary.com/browse/joke -- MC VK1MC
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mike.carden
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#85889
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Re: QDX shipment rate
What QRP Labs Prime? Paul K0ZYV
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Paul Schumacher
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#85888
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