Re: QDX next batch
Hi Steve No, it does not. I had never seen that issue here and I did the board Rev 2 before it was mentioned on the forum. 73 Hans G0UPL http://qrp-labs.com >
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Hans Summers
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#74694
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Re: Info power 5 v qlg1 external
Thanks Julian, I'll have to check both power supplies. I'll do a new test tomorrow morning. Thank you. 73 de iu8eun Joseph Il lun 15 nov 2021, 15:31 iu8eun Giuseppe Coppoletta <iw8rsb@...> ha
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GIUSEPPE <iw8rsb@...>
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#74693
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Re: Info power 5 v qlg1 external
Thanks Al, I leave the qlg1 connected as it should. for the moment I have 2 U3S beacons in 20 and 17 meters with different powers. Al, Thank you so much for your help. have a nice day. 73 de IU8EUN
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GIUSEPPE <iw8rsb@...>
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#74692
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Re: Info power 5 v qlg1 external
Make sure you have the grounds connected properly. This means that at least one of the power supplies must be isolated from ground, itself, but referenced to ground at the QCX, or you may get a ground
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Julian N4JO
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#74691
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Re: Info power 5 v qlg1 external
OK, thank you. If all the LEDs work on the QLG1 showing power, data and PPS with the external 5V supply then the unit should communicate with the QCX-mini properly. If it does not, then I'd look into
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Al Holt
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#74690
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Re: QDX next batch
These changes sound great Hans. Does the new PCB version address the edge of board IC6/7 case fitting issues that some have had? Steve N9SZ
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Steve Z
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#74689
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Re: Attention QDX Linux users
#qdx
Hi All, Some modem support routines would send the init sequence over and over periodically trying to re-init the Hayes modem. This might explain the occasional 'drop outs'. Lots of fun.
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jmh6@...
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#74688
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Re: Info power 5 v qlg1 external
Al, yes the qlg1 works on the qcx mini without any problem. What I did this morning is to feed the qlg1 not from the PTT of the qcx mini but from an external power supply and I noticed that it did not
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GIUSEPPE <iw8rsb@...>
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#74687
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Re: Info power 5 v qlg1 external
Giuseppe, Has this worked at all in the past? If not, the most common problem is not having the correct data Tx/Rx lines connected between the QLG1 and the QCX-mini. From memory, the QLG1's *TXD* data
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Al Holt
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#74686
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AMS 1117-3.3 defektive,12 Volt on VDD, QDX total loss ?
*Hello suddenly the signal was gone during RX on 40m. After restarting wsjt-x and switching on again the QDX, no flashing? LED and no Com port on the PC detectet . After opening the Case I saw that
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Manfred Binder
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#74685
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Re: Info power 5 v qlg1 external
Hi Al, thank you very much, this morning I tried to power the qlg1 from a different power supply than the qcx mini but the clock was not reconfigured despite the gps signal. I don't understand why ..
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GIUSEPPE <iw8rsb@...>
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#74684
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Re: Info pawer 5 v qlg1 external
Hello Giuseppe, Yes, an external 5 volt supply will work. I have 2 QLG-1's and a QLG-2 and use external power (not supplied by my QRP Labs equipment) on them all. For the QLG-1 units I use a 7805
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Al Holt
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#74683
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Re: QDX - No RF output, Tx line stays low
Hi Ben, I like the power box.? I thought of doing this myself, though I would like to include the switch in the QDX case. On a clue from the QDX Linux ModemManager thread, I have added one more step
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Evan Hand
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#74682
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Info pawer 5 v qlg1 external
Hello everyone, I have a problem with the PTT output of the qcx mini for 20 meters, it does not give me the 5 volts to power the qlg1. I would like to know if it is possible to use a 5v power supplied
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GIUSEPPE <iw8rsb@...>
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#74681
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Re: QDX - RF Filter Sweep graphs?
All, I have found that the RF sweeps need to be connected to a good 50ohm resistive dummy load (shielded is better) to be repeatable (within accuracy limits).? Connecting to an antenna introduces
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Evan Hand
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#74680
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Re: QCX WARC Party - November 2021
which freq. are you all using for the QCX WARC party ? I assume somewhere around 10.106 / 10.116 ? 73 Chris M0AWN
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M0awn
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#74679
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Re: QCX WARC Party - November 2021
Hi Luc Hi hi... yes I have been having fun with FT8 and JS8. JS8 particularly. I am not so fond of FT8. I find it a bit like a computer game and with similar addictive characteristics :-/ I had a nice
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Hans Summers
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#74678
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Re: QCX WARC Party - November 2021
Hi all, NOTE that we are in winter time now ... so make sure that you are on the air in the correct time slot ;-) For most of us in Europe, 1300, 1900 and 0300 UTC translates to *1400 , 2000* and 0400
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ON7DQ Luc
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#74677
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Re: QDX - RF Filter Sweep graphs?
Hi Brent, I have quite similar rf filter sweep graphs. I re did L12 and some other toroids risking to damage the pads but almost nothing changed. I was concerned especially about 20M as I have a
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Suat Alper Seyhan
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#74676
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Re: QDX next batch
Hi all Today I received news, the PCB manufacture of the 375pcs Rev 2 QDX board is completed. See attached photos. The boards will now be transferred to a different facility, along with the reels of
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Hans Summers
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#74675
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