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QDX audio line out tap
Hey Guys, I am not a programmer but got it to work in the end. It really makes the QDX come alive. I hated not being able to hear what was going on with this radio. Now, you clever guys…how do I VNC t
Hey Guys, I am not a programmer but got it to work in the end. It really makes the QDX come alive. I hated not being able to hear what was going on with this radio. Now, you clever guys…how do I VNC t
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KEN G4APB
· #90443
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QDX audio line out tap
doh, found i had missed the actual bit that says... 'You can find the program files for firmware revision 1.03 here ( https://www.rosenatthewheel.com/qdxsdr103.zip ) (the revision 1.04 version is in p
doh, found i had missed the actual bit that says... 'You can find the program files for firmware revision 1.03 here ( https://www.rosenatthewheel.com/qdxsdr103.zip ) (the revision 1.04 version is in p
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KEN G4APB
· #90441
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QDX audio line out tap
Hi Johan, 73 Ken g4apb
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KEN G4APB
· #90438
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What about 13.6 volts?
The QDX manual states; If you wish to use a supply of 12 - 13 V the 3:2 winding style is more suitable and will produce 4 – 5 W output for 12 – 13 V supply. I started with the 9v build and it gave me
The QDX manual states; If you wish to use a supply of 12 - 13 V the 3:2 winding style is more suitable and will produce 4 – 5 W output for 12 – 13 V supply. I started with the 9v build and it gave me
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KEN G4APB
· #90426
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#qdx for 40, 30, 20, 17 +
#qdx
Alan, you said; After configuring all bands to use the 10m LPF ….. How did you get a 10m lpf on the qdx please? I looked at Hans lpf schematic and downloaded the ‘Elsie’ lpf calculator programme, but
Alan, you said; After configuring all bands to use the 10m LPF ….. How did you get a 10m lpf on the qdx please? I looked at Hans lpf schematic and downloaded the ‘Elsie’ lpf calculator programme, but
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KEN G4APB
· #90357
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QDX 20m RF Sweep v1_04 Default Operating Frequency Vertical Line Missing
Thanks for that Hans, no need to change the bootloader! However, so I dont 'brick' my QDX by trying this for myself, can the EEPROM file name be given a version number or name change by ME? Reason is,
Thanks for that Hans, no need to change the bootloader! However, so I dont 'brick' my QDX by trying this for myself, can the EEPROM file name be given a version number or name change by ME? Reason is,
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KEN G4APB
· #90317
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QDX 20m RF Sweep v1_04 Default Operating Frequency Vertical Line Missing
Thanks Hans, the trick is to actually DO a firmware update. I just tried it with v1-005-002 on my Raspi and it did reboot. What I did was before just look at the firmware update using terminal emulato
Thanks Hans, the trick is to actually DO a firmware update. I just tried it with v1-005-002 on my Raspi and it did reboot. What I did was before just look at the firmware update using terminal emulato
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KEN G4APB
· #90299
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QDX 20m RF Sweep v1_04 Default Operating Frequency Vertical Line Missing
Hi Hans, if you are looking to release a further firmware update for the QDX, I have a feature request for consideration. I usually remotely VNC into the PC running my QDX. This is great until to go i
Hi Hans, if you are looking to release a further firmware update for the QDX, I have a feature request for consideration. I usually remotely VNC into the PC running my QDX. This is great until to go i
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KEN G4APB
· #90288
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QCX-mini Options
The rf output is connected to one pole of the switch, the centre pin connects to the RF test pin on the 4 way connector. The 12V pin on the 4 way connects to the other pole of the switch. You are corr
The rf output is connected to one pole of the switch, the centre pin connects to the RF test pin on the 4 way connector. The 12V pin on the 4 way connects to the other pole of the switch. You are corr
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KEN G4APB
· #90258
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QCX-mini Options
I added a switch on my mini to switch between RF and DVM. If you only want to use an spco switch, connecting the DVM to the rf pin just gives a diode drop less reading on battery symbol. As the indica
I added a switch on my mini to switch between RF and DVM. If you only want to use an spco switch, connecting the DVM to the rf pin just gives a diode drop less reading on battery symbol. As the indica
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KEN G4APB
· #90216
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QDX RF Filters Questions
Many thanks for the explanation Hans, That is very useful information when it comes to experimenting with other bands. I am currently using my QDX v3 a firmware 1.04, on 40mhz (8m) band to monitor my
Many thanks for the explanation Hans, That is very useful information when it comes to experimenting with other bands. I am currently using my QDX v3 a firmware 1.04, on 40mhz (8m) band to monitor my
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KEN G4APB
· #90175
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QDX RF Filters Questions
What determines the bpf/lpf switch over frequency in the band configurations? Does the firmware compare the frequency you have set via CAT with the band limits set in the configs and set to the lpf in
What determines the bpf/lpf switch over frequency in the band configurations? Does the firmware compare the frequency you have set via CAT with the band limits set in the configs and set to the lpf in
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KEN G4APB
· #90168
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QDX Deaf with high current.
#qdx
Hi Dave, do you have the ‘flatten’ box ticked in wsjt-x? This can give you the effect you see. Try unticking it. Ken g4apb
Hi Dave, do you have the ‘flatten’ box ticked in wsjt-x? This can give you the effect you see. Try unticking it. Ken g4apb
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KEN G4APB
· #90088
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QDX Deaf with high current.
#qdx
You clever boy Pim... Confirmed hard track short circuit exactly where you said, took quite some effort with a scalpel to remove it under my eyeglass. Not a solder bridge short, this was actual copper
You clever boy Pim... Confirmed hard track short circuit exactly where you said, took quite some effort with a scalpel to remove it under my eyeglass. Not a solder bridge short, this was actual copper
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KEN G4APB
· #90057
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QDX Deaf with high current.
#qdx
I went round every major component and squirted it with freezer spray. The only area that it went haywire was the tcxo. Current in receive mode shot up initially to 200mA, then my psu current limit cu
I went round every major component and squirted it with freezer spray. The only area that it went haywire was the tcxo. Current in receive mode shot up initially to 200mA, then my psu current limit cu
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KEN G4APB
· #90030
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QDX Deaf with high current.
#qdx
Thanks for that Dave and Pim, it confirms to me there is more than build issues here. I see the same interference on well proven analogue psu or battery, regardless of PC used or USB lead etc etc. My
Thanks for that Dave and Pim, it confirms to me there is more than build issues here. I see the same interference on well proven analogue psu or battery, regardless of PC used or USB lead etc etc. My
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KEN G4APB
· #90021
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QDX Deaf with high current.
#qdx
Dave, you seem to be getting Exactly the same results as me. rx current 180mA, low audio out (btw, mic input is wrong input for wsjt-x - select qdx ip and op), poor LSB separation. When you have selec
Dave, you seem to be getting Exactly the same results as me. rx current 180mA, low audio out (btw, mic input is wrong input for wsjt-x - select qdx ip and op), poor LSB separation. When you have selec
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KEN G4APB
· #90008
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#qdx for 40, 30, 20, 17 +
#qdx
Hi Alan, many thanks for that but how did you do the above? There are only 6 band config positions but there are 10 bands covering 80-10m? Do you see any of this strong interference at 500Hz steps. I
Hi Alan, many thanks for that but how did you do the above? There are only 6 band config positions but there are 10 bands covering 80-10m? Do you see any of this strong interference at 500Hz steps. I
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KEN G4APB
· #89896
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#qdx for 40, 30, 20, 17 +
#qdx
Alan, HOW is your QDX working ‘on all bands 80m to 10m?’ If I select any frequency from 17m to 10m, all I see are strong tramlines at 62.5hz and stronger ones at 500hz across the audio band if I use w
Alan, HOW is your QDX working ‘on all bands 80m to 10m?’ If I select any frequency from 17m to 10m, all I see are strong tramlines at 62.5hz and stronger ones at 500hz across the audio band if I use w
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KEN G4APB
· #89893
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USB audio 50/500hz interference
#qdx
Evan, voltage checks 12v supply; 50ohm dummy load to antenna port.Results using WhiteGold digital multimeter; IC2 5.00v out. Rx input current no USB lead, 170mA. USB lead connected to Raspi, running w
Evan, voltage checks 12v supply; 50ohm dummy load to antenna port.Results using WhiteGold digital multimeter; IC2 5.00v out. Rx input current no USB lead, 170mA. USB lead connected to Raspi, running w
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KEN G4APB
· #89432
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