|
Re: impedance value for T1 QCX
Done!
Thank you to all
By
Giulio Paris <giulio.paris@...>
·
#60560
·
|
|
Re: QCX: Another Low Power Problem
Hi One of the problem with LPF loss in the slope, LPF should drop like a stone after the roll off frequency, see enclosed plots, Your 30M filter, is probably like the the Poor 20M enclosed, It is
Hi One of the problem with LPF loss in the slope, LPF should drop like a stone after the roll off frequency, see enclosed plots, Your 30M filter, is probably like the the Poor 20M enclosed, It is
|
By
Andrew Lenton
·
#60559
·
|
|
Re: impedance value for T1 QCX
Yes, two turns each.
By
Al Holt
·
#60558
·
|
|
Re: QCX mini side tone quality
Yes Jim,
You are right and my antenna is far from perfection (and I use it with other radios without problems) but QCX will be operated in the field with different "compromise" antennas like LW, EFHW
Yes Jim,
You are right and my antenna is far from perfection (and I use it with other radios without problems) but QCX will be operated in the field with different "compromise" antennas like LW, EFHW
|
By
Pawel
·
#60557
·
|
|
Re: impedance value for T1 QCX
So the primary and two secondary have two turns each.
Correct?
So the primary and two secondary have two turns each.
Correct?
|
By
Giulio Paris <giulio.paris@...>
·
#60556
·
|
|
Re: No power output and no reception
Follow the correct video.
Em sáb., 9 de jan. de 2021 às 11:35, Fabio Barroso <pt7eng@...> escreveu:
--
Fábio Barroso Brito
Engenheiro de Telecomunicações
CREA 061787033-0
Follow the correct video.
Em sáb., 9 de jan. de 2021 às 11:35, Fabio Barroso <pt7eng@...> escreveu:
--
Fábio Barroso Brito
Engenheiro de Telecomunicações
CREA 061787033-0
|
By
Fabio Barroso <pt7eng@...>
·
#60555
·
|
|
No power output and no reception
Hi Guys,
My name is Fabio from Brazil. I finished the assembly of my QCX + 40m, to my surprise there is no signal of transmission or reception, I was very careful when winding the coils and the
Hi Guys,
My name is Fabio from Brazil. I finished the assembly of my QCX + 40m, to my surprise there is no signal of transmission or reception, I was very careful when winding the coils and the
|
By
Fabio Barroso <pt7eng@...>
·
#60554
·
|
|
Re: impedance value for T1 QCX
Giulio,
Yes, that's right. Here's a picture of the toroid in my QCX-80:
Good luck!
--Al
Giulio,
Yes, that's right. Here's a picture of the toroid in my QCX-80:
Good luck!
--Al
|
By
Al Holt
·
#60553
·
|
|
Re: #progrock GPS threshold adjustment
#progrock
#qlg1
Hi Bob
The serial data starts when the 1pps signal goes low. While the 1pps signal is active, there is no serial data. The important instant is the leading edge of the 1pps signal, which is clean.
73
Hi Bob
The serial data starts when the 1pps signal goes low. While the 1pps signal is active, there is no serial data. The important instant is the leading edge of the 1pps signal, which is clean.
73
|
By
Hans Summers
·
#60552
·
|
|
Re: Upgrading Firmware with Raspberry Pi?
Thanks Ted. Where does one find the "chips.xml" file referenced on the instruction page under PC setup?
73 de Arnie W8DU
Thanks Ted. Where does one find the "chips.xml" file referenced on the instruction page under PC setup?
73 de Arnie W8DU
|
By
Podolsky A <w8du@...>
·
#60551
·
|
|
Re: Upgrading Firmware with Raspberry Pi?
Hi, Ted
Works fine if:
1. You have Windows on your computer (I don't).
2. You trust Zadig not to be trojaned (Solar Winds, anyone?).
3. You trust Extreme Burner not to be trojaned
Hi, Ted
Works fine if:
1. You have Windows on your computer (I don't).
2. You trust Zadig not to be trojaned (Solar Winds, anyone?).
3. You trust Extreme Burner not to be trojaned
|
By
James Daldry W4JED
·
#60550
·
|
|
Re: #progrock GPS threshold adjustment
#progrock
#qlg1
Could that "grass" be when the actual NMEA data is being sent out of the QLG1? It seems to last about 0.5 to 0.6 seconds and might be present while the 1PPS signal is high, but we just can't see it.
Could that "grass" be when the actual NMEA data is being sent out of the QLG1? It seems to last about 0.5 to 0.6 seconds and might be present while the 1PPS signal is high, but we just can't see it.
|
By
Bob M.
·
#60549
·
|
|
Re: impedance value for T1 QCX
I have read the post of Steven and looks very interesting. I will test it (I have the toroid!).
So the turns for 80 m will be
secondary 3 18 turns
primary 3 turns
secondary 1 and 2 3 turns
It is
I have read the post of Steven and looks very interesting. I will test it (I have the toroid!).
So the turns for 80 m will be
secondary 3 18 turns
primary 3 turns
secondary 1 and 2 3 turns
It is
|
By
Giulio Paris <giulio.paris@...>
·
#60548
·
|
|
Re: #progrock GPS threshold adjustment
#progrock
#qlg1
I am currently using a QLG1 GPS to drive a shack clock, ProgRock, U3S and a VFO. The 1PPS signals are put through an AND gate in the U3S and the VFO to stop the display flashing when that
I am currently using a QLG1 GPS to drive a shack clock, ProgRock, U3S and a VFO. The 1PPS signals are put through an AND gate in the U3S and the VFO to stop the display flashing when that
|
By
geoff M0ORE
·
#60547
·
|
|
Re: Upgrading Firmware with Raspberry Pi?
Andy,
Looking at your site I decided to put the more useful pages back up to top level to preserve their previous URLs.
I was thinking of doing this but thought I'd probably left it too late.
Andy,
Looking at your site I decided to put the more useful pages back up to top level to preserve their previous URLs.
I was thinking of doing this but thought I'd probably left it too late.
|
By
Alan G4ZFQ
·
#60546
·
|
|
Re: #progrock GPS threshold adjustment
#progrock
#qlg1
Victor,
No, but it might show if the QLG1 is at fault.
73 Alan G4ZFQ
Victor,
No, but it might show if the QLG1 is at fault.
73 Alan G4ZFQ
|
By
Alan G4ZFQ
·
#60545
·
|
|
Re: qcx mini rf out indicator
Ken,
What values of series resistor would you suggest for the PTT/+5V line? Should this be a routine mod or are there reasons for leaving this out?
--
73, Dan NM3A
Ken,
What values of series resistor would you suggest for the PTT/+5V line? Should this be a routine mod or are there reasons for leaving this out?
--
73, Dan NM3A
|
By
Daniel Walter
·
#60544
·
|
|
Re: Upgrading Firmware with Raspberry Pi?
On Sat, Jan 9, 2021 at 03:10 AM, Alan G4ZFQ wrote:
Thanks,
I did give up on the menu, it seems to be either a long list of about 40 pages or grouping where sub-pages have revised URLs meaning any
On Sat, Jan 9, 2021 at 03:10 AM, Alan G4ZFQ wrote:
Thanks,
I did give up on the menu, it seems to be either a long list of about 40 pages or grouping where sub-pages have revised URLs meaning any
|
By
Albert Tatlock's Greatest Hits - Vol 1
·
#60543
·
|
|
Re: Upgrading Firmware with Raspberry Pi?
Andy,
Thanks,
I did give up on the menu, it seems to be either a long list of about 40 pages or grouping where sub-pages have revised URLs meaning any previous links became dead.
73 Alan G4ZFQ
Andy,
Thanks,
I did give up on the menu, it seems to be either a long list of about 40 pages or grouping where sub-pages have revised URLs meaning any previous links became dead.
73 Alan G4ZFQ
|
By
Alan G4ZFQ
·
#60542
·
|
|
Re: #progrock GPS threshold adjustment
#progrock
#qlg1
I have used the U3S on WSPR with 200 mW and got good reports worldwide on 30, 40 and 15m. By adjusting the parking frequency I have got consistent drift reports of zero and 1. So it works
I have used the U3S on WSPR with 200 mW and got good reports worldwide on 30, 40 and 15m. By adjusting the parking frequency I have got consistent drift reports of zero and 1. So it works
|
By
Victor 4X6GP
·
#60541
·
|