Re: white blocks of death yet again
Thanks Tim that works.
Is there a reason why I need to replace L5? It seems to work fine with the jumper in.
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
FT8 is killing our hobby !?
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Hi Hans, On 09/18/2018 12:52 PM, Hans Summers wrote: So yes, it is the intention that USB audio and CAT control will be
available on the same USB cable connection; BUT, I have not got this far to
test that yet, so will only be 100% sure once I see it working! I had been wondering the same thing but didn't want to distract you from your work. I will stay tuned! The ability to do both at the same time (whether over one USB cable or two) would be a huge benefit in my envisioned use of the radio. 73, Paul N1BUG
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Hi Arvo? ?
I understand the QSX, when connected by USB cable to the PC, will appear as a sound card.? Thus, when working FT8, there is no need for separate audio interfaces or cables between the QSX and the PC for audio.
Will the QSX be capable of CAT control by the USB cable as well, and at the same time as the audio card emulation is working?? That is, will the QSX on FT8 only have one connection between the rig and the PC that will take care of audio and CAT control?
Apologies if this has already been answered, or if the question is unclear.
The question is clear and is a good one.?
I believe that theoretically QSX can manage both the USB Audio and the CAT control, along the same cable. This is because a USB connection supports multiple end-points. If anyone knows anything to the contrary please let me know.?
So yes, it is the intention that USB audio and CAT control will be available on the same USB cable connection; BUT, I have not got this far to test that yet, so will only be 100% sure once I see it working!
73 Hans G0UPL
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Re: white blocks of death yet again
Short out L5 under processor and try that
Worked for me
Some early inductors had issues
If it works replace with new 50-100 uH
Tim
On 9/18/2018 11:41 AM, KD8CGH wrote:
toggle quoted message
Show quoted text
Summary: I built an early (#254) QCX kit and it shows only
white blocks on power up. I have?
read and followed the trouble-shooting doc and group posts
with no progress.?
?
Details: I had successfully built an Ultimate3S with QLG1 GPS
so I decided to order a 30?
meter and a 40 meter QCX kits when they were announced.?
Recently I built the 40 meter QCX.?
During the build I did the L5 mod. On power up I see a top
row of blocks no matter how I?
adjust the contrast. I then tried everything in that section
of the trouble-shooting doc.
?
I re re rechecked all solder connections and looked for
solder bridges. All components are?installed and everything
looks fine.
?
I can hear the 20 MHz oscillator in another receiver.
?
I rechecked the chip several times. All pins are seated and
none are bent. I also?swapped the chip with the one from the 30
meter kit with no change. I also swapped the LCD for the one in
the 30 meter kit and still no joy.
?
Any suggestions what to try next?
?
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On Tue, Aug 21, 2018 at 02:38 PM, Hans Summers wrote:
Greg is only talking about USB into and out of the radio.
Hello, Hans. Thanks for all the hard work on the QSX. Could you help with a little clarification? I understand the QSX, when connected by USB cable to the PC, will appear as a sound card.? Thus, when working FT8, there is no need for separate audio interfaces or cables between the QSX and the PC for audio. Will the QSX be capable of CAT control by the USB cable as well, and at the same time as the audio card emulation is working?? That is, will the QSX on FT8 only have one connection between the rig and the PC that will take care of audio and CAT control? Apologies if this has already been answered, or if the question is unclear.
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white blocks of death yet again
Summary: I built an early (#254) QCX kit and it shows only white blocks on power up. I have?
read and followed the trouble-shooting doc and group posts with no progress.?
?
Details: I had successfully built an Ultimate3S with QLG1 GPS so I decided to order a 30?
meter and a 40 meter QCX kits when they were announced.? Recently I built the 40 meter QCX.?
During the build I did the L5 mod. On power up I see a top row of blocks no matter how I?
adjust the contrast. I then tried everything in that section of the trouble-shooting doc.
?
I re re rechecked all solder connections and looked for solder bridges. All components are?installed and everything looks fine.
?
I can hear the 20 MHz oscillator in another receiver.
?
I rechecked the chip several times. All pins are seated and none are bent. I also?swapped the chip with the one from the 30 meter kit with no change. I also swapped the LCD for the one in the 30 meter kit and still no joy.
?
Any suggestions what to try next?
?
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Re: QCX died after one QSO
If yours was an early kit, replace L5.
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Show quoted text
On 17/09/2018 19:46, Andy Kerrison wrote: Well the blocks are back after an evening of running WSPR ok.
Switched it on tonight and blocks along the top again.
Reseated the micro-controller, no luck, re soldered the socket pins and still no luck.
I'll start checking voltages when I have more time.
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Re: Unable to receive anything on my 20m
#chat
Thanks for your answer Richard, I'll give that a try. :)
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Re: QCX died after one QSO
Review all the solder joints with a magnifier and touch up as required.
If still no joy, I would order another micro-controller.
--
73, Bernie, VE3FWF
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
Over the years several of the QRP groups have offered a simple multiband signal source kit. The one I have covers 80-20 meters and has S1, S3 and S9 selectable output.
Could be a great addition to QRP-Labs offerings! I believe mine was designed by Steve Weber.
Tim W4YN?
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
Can you tune your QCX to the FT8 frequency and hear signals? ? If so, it¡¯s not your receiver, just FT8 sucking everyone away.
The CWOPS CWT¡¯s are very active, and you should hear a lot of CW on 20M during those. ??
--
Harv
K2PI
Warrenton, VA
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
John, When you connect the antenna does the noise level increase? It should. If not, check the soldering on the low-pass filter L1, L2 and L3. Also check the soldering on the transformer T1. If you didn't get the wire clean you could have a bad solder joint which could kill the receiver. Good luck Mike M. KU4QO
On Mon, Sep 17, 2018 at 11:14 PM, John KF6QPC <j.capel@...> wrote: I've been having fun experimenting with the QCX as far as configuration and code practice.? However, after hooking up the QCX to an Elecraft T1 ATU and to a end-fed antenna, I'm not hearing any CW activity.? Is 20 meter CW activity dead at this time or do I have an issue with the receive section of the QCX?
BTW, I'm using the same antenna for FT8 and works well.
I look forward to any helpful suggestions.
73 John KF6QPC
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Re: #clock firmware development request
#clock
Micha, Brian,
Thanks, it is a good suggestion, I have put it on my list.?
Yes, the list does contain some good suggestions... Hans has been a bit busy, not enough hours in the day.?
73 Hans G0UPL
On Mon, Sep 17, 2018 at 4:25 PM BrianB < brianb@...> wrote: There have been a number of clock feature requests over the last year. Yours is another good one. So far no word from Han's...
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Re: Unable to receive anything on my 20m
#chat
If you hear an increase in noise as you tune the loop then the receiver must be working. Listen on 14.074MHz. This should be full of FT8 signals during the day. The band will close in the evening.
--
73
Richard
G4TGJ
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
20m should be active during the day but will close in the evening. Listen on the FT8 frequency - this is usually full of signals. If you already have a receiver for FT8 can you listen to the CW band on this for comparison?
--
73
Richard
G4TGJ
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Re: Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
John,?
You might try listening for the three CWOPS 1 hour contests that happen every Wednesday, as the band often appears to magically open during those tests, and there are many loud stateside signals.
The activity is nominally between 028 and 038 from the bottom of the cw band, and you can check the times on the CWOPS website, there¡¯s one early, one midday and one late, I think 0300, which may be too late for 20.
Good luck,
Scott ka9p
toggle quoted message
Show quoted text
On Sep 17, 2018, at 9:14 PM, John KF6QPC < j.capel@...> wrote: I've been having fun experimenting with the QCX as far as configuration and code practice.? However, after hooking up the QCX to an Elecraft T1 ATU and to a end-fed antenna, I'm not hearing any CW activity.? Is 20 meter CW activity dead at this time or do I have an issue with the receive section of the QCX?
BTW, I'm using the same antenna for FT8 and works well.
I look forward to any helpful suggestions.
73 John KF6QPC
|
Is the 20m band quiet for CW or do I have a receiver problem with the QCX
#qcx
#rcvr
I've been having fun experimenting with the QCX as far as configuration and code practice.? However, after hooking up the QCX to an Elecraft T1 ATU and to a end-fed antenna, I'm not hearing any CW activity.? Is 20 meter CW activity dead at this time or do I have an issue with the receive section of the QCX?
BTW, I'm using the same antenna for FT8 and works well.
I look forward to any helpful suggestions.
73 John KF6QPC
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Re: Unable to receive anything on my 20m
#chat
Hi again,
I've just checked the resistance between wire ends of L1, L2, L3, L4? and T1 on the soldered pads below the PCB and I get 0 ohm readings :s .?
Thanks for your response Chopper.
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Re: Unable to receive anything on my 20m
#chat
Make sure you are making contact on the solder pads and not the wire ends when checking the connectivity of the T1 windings.? Readings that "jump around" when doing alignment is an symptom of poor solder connections on T1.? Use a ohm meter not audible tone.
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Bob Benedict, KD8CGH
Patrick TK5EP
N1BUG
Arvo W0VRA
N3MNT