Date   

Re: LCD blank

Alan G4ZFQ
 

Wayne
You are describing it displaying ONE row of blanks. Only both when the control is excessively advanced.
Here http://www.qrp-labs.com/qcxmini/trouble.html#blocks it says that the processor is not talking to the display.
Check out the processor.

73 Alan G4ZFQ


Re: QLG3-enclosure, a work in progress #gps #enclosure

Roelof Bakker
 

Hello Dave,

I am using a PCB design program (Sprint-Layout 6.0) to design a panel and print it on plain paper. For protection the paper panel is laminated using a 125 um pouche.

For mounting it on the case I use thin double sided tape.
This works very well and will surfive an excidental touch with the solder iron!


73,
Roelof, pa0rdt
--
Roelof Bakker, pa0rdt


Re: LCD blank

Wayne Robertson
 

Thank you; clear now.

So, the gnds and voltages check out yet the LCD is still blank or shows 1 or 2 rows of rectangles, depending on contrast setting of R47.  Anyone have any other ideas, or should I reach out to Hans?

Thanks Julian and Mont.

73, Wayne  


Re: QCX 50w amp receive problem

G3SPL
 

Check that all the connections on C1, C16, D3, D5 and associated components are good - reflow the solder connections. Using a DVM check the PCB traces between those components (I had problem with a broken trace on my 50W build).

With the unit powered up and on receive, Q5 drain (connected to R12) should be near supply voltage and junction on D3 and D5 should be near ground (zero V). At the same time, the anodes of D3 and D5 should read about plus 0.6 Volts.  If these conditions, aren't met, you have a problem somewhere in that circuit area.
--
Peter Lee
G3SPL


Re: Which SuperCap for QLG2-SE #gps

Roger G4IUP
 

Hi Mont,
Was wondering the same thing myself. I also find 0.47 hard to find at a reasonable cost. Lets hope someone can help us !
73 Roger G4IUP.


Re: QCX-Mini doesn't Auto-set time with GPS #gps #qcx #troubleshoot

G3SPL
 

Well, the good news is it seems the 1 pulse per second is working as  you are able to calibrate the crystal oscillators (8.11 and 8.12).  Those serial data traces look a tad noisy, but as you say, that could be due to things like earth loops on the scope input.  But I would concentrate on looking at the serial data - does it look clean directly on the output of the GPS, for example?  You may have a grounding issue with your lead or perhaps the serial data is not the full 5 volt swing?

Check that a good 5V swing of serial data is available on pin 19 of the microcontroller (IC2).  If the keying paddle works OK it would pretty much rule out any poor connections from the keying jack to the controller.

Interestingn one, this.  Hope you find out what's going on!
--
Peter Lee
G3SPL


Re: QLG3-enclosure, a work in progress #gps #enclosure

David Wilcox K8WPE
 

I still don’t get it.  Do you glue the card stock to another thicker piece of cardboard?  The whole panel is cardboard?  If so how do you get it strong enough to hold meters, speaker, etc? Or just crude holes cut into pc board and the card stock glued on to make it look nice?

Dave K8WPE

David J. Wilcox’s iPad

On Aug 31, 2021, at 1:37 PM, jjpurdum via groups.io <jjpurdum@...> wrote:


They are all card stock, but Al did them, not me.

Jack, W8TEE

On Tuesday, August 31, 2021, 12:18:44 PM EDT, Harry Latterman via groups.io <harrylatterman@...> wrote:


If those are all card stock from panels... I am impressed...very impressed..

Harry K7ZOV

On Tuesday, August 31, 2021, 08:50:07 AM MST, jjpurdum via groups.io <jjpurdum@...> wrote:




On Tuesday, August 31, 2021, 11:39:34 AM EDT, Al Holt <grovekid2@...> wrote:


On Tue, Aug 31, 2021 at 09:45 AM, jjpurdum wrote:
 
Now we print a cardstock template and do the LCD/display cutout with an X-Acto knife (make it just a smidgen smaller than the display).
Jack,
Not sure I understand what you've written. Is the entire top cover cardstock? Yes. All of these use the same technique:

<All Projects - Small.jpg>



A small amount of glue holds it in place
Is the glue holding the LCD/display in place? On this particular one, yes. On most, we use countersunk flat head screws.

and a thin coat of clear Krylon protects it.
I can picture that for protecting the card stock, but are you also spraying the display? No. We cover it with masking tape during the spray.

I may be totally off the mark on understanding the technique. Thanks!

--Al
 
<All Projects - Small.jpg>


Re: Question about customizing the QLG2/QLG2-SE serial data #clock #gps

Alan G4ZFQ
 

On 01/09/2021 02:36, Mont Pierce KM6WT wrote:

I got the Clock running great now with the QLG2-SE.  Sent the following command:
$PGKC115,1,0,0,0*2B
That's some progress!
NaviTrack has that command built in but most of the other commands need it to be used like a terminal program.
It's far from being a good program but it does show Glonass and Beidou.
On my setups I am asked when I start the program which, I suppose, is the same as running as Administrator.
I have seen no way of saving settings. I do not think a supercap will help, it loses baud rate settings if it is powered on and another seemingly unrelated command is sent.

73 Alan G4ZFQ


Re: Question about customizing the QLG2/QLG2-SE serial data #clock #gps

Mont Pierce KM6WT
 

On Tue, Aug 31, 2021 at 06:24 PM, Mont Pierce KM6WT wrote:
NaviTrack is mentioned on the QRP-Labs G2 webpage near the bottom:

Note here https://www.ebyte.com/en/data-download.html?id=542&pid=485#load is the Navitrack software for the Ebyte module. The Navitrack software may be used to check it, see NMEA, satellites, send commands including the update command.

I downloaded and tried it, but the zip file seems to be incomplete.  I get an error pop-up stating:  "Call to DllRegisterServer failed".  It might be a missing file or a Win 10 issue...
Ok, I found my issue causing this failure...

On Win 10, you have to right click on the program name, and select "Run as Administrator".

So I now have NaviTrack talking to my QLG2-SE.  Now, I just need to investigate what it can do, as far as setting/saving custom configurations, like Baudrate, and, setting which satellites to look for.


73,
km6wt


QCX-Mini doesn't Auto-set time with GPS #gps #qcx #troubleshoot

David (W5CWT)
 

I am trying to set the clock on the QCX-mini with the QLG1 gps unit. The GPS unit seems to work (all LEDS operate as expected) but the radio never sets the clock or the grid square. Calibration menu items 8.11 and 8.12 both seem to work without issue. 

When I scope the output of the QLG1 I see the 1pps on the tip and what appears to be serial data on the rig BUT it is not very clean. I am a noob with a scope, so I could very be at fault for the traces. I can't seem to get a reliable (or valid) decode with the RS232 decode function on the scope.

I've added photos. Any suggestions?

Thanks,
David W5CWT


QCX 50w amp receive problem

tom.dostal
 

Hello to all.

I recently completed assembly of the QRP-LABS 50w amp for 20 meters.  This amp is for my QCX mini.  I used the mini in several qsos and the radio is performing perfectly.

After completing assembly, I performed the adjustment procedure.  The amp was pulling 74.5ma there.  I measured 19w output at about 13v transmitting into a dummy load.

I hooked up the amp to my antenna and called CQ.  I checked the reverse beacon network and my signal was received by several stations so it looks like the amp worked correctly.

The only problem I am having is the amp is not passing back any signal for receive to the QCX.  I've double-checked the orientation of all diodes.  All of those look correct.  In addition, I've inspected all solder joints and I don't see anything cold or bridged.

Can anyone help me out here?

Tom Dostal
K0INN


Re: QCX challenge #qcx_challenge #qsoparty

DG2FDD
 

Hi Luc, I noticed my error (66) immediately after submitting. Unfortunatly, the corrections on the site take some time - I resubmitted (6) just after the original fault. 

Apologies, Jens DG2FDD 


Re: U3S not calibrating????

GIUSEPPE
 

Hello everyone, I use the U3S from 6 bands, but in transmission only 1. at this moment the beacon works with U3S single band because I am waiting for the spare bs170 mosfets, however every single U3S has its own calibration.  I am fine using on cal step time 3-220.  That's fine. 73 iu8eun


Il mer 1 set 2021, 00:46 <jrc198820@...> ha scritto:
Thanks. That helped me understand a little better.

I think it's sorted out now.
I did a reset and started from scratch.

This would be a good explanation to put in the file section.

Rod
KD0XX


Re: U3S not calibrating????

GIUSEPPE
 


Il mar 31 ago 2021, 10:31 iu8eun Giuseppe Coppoletta <iw8rsb@...> ha scritto:
Hi James, try to increase Cal step time to 3 and 220, I send back some of my configuration photos on the U3S beacon on 14.097100.  greetings from iu8eun Giuseppe

Il mar 31 ago 2021, 10:17 M0RON <eustace.andy@...> ha scritto:
What do you have the calibration parameter set to? How many tx slots? Did it ever calibrate? 
Andy 

--
The universe is made up of Protons, Neutrons, Electrons but contains only one M0RON.


Re: LCD blank

 

I'm saying that pin 1 of the connector on the circuit board is at 180 degrees from what the picture of the connector on the schematic suggests that it would be.

The schematic suggests that pin 1 is the "Northwest" position on the circuit board. It isn't: it's in the "Southeast" position on the circuit board, looking at the circuit board in the same orientation as if you were operating it, which is with the BNC on the top of the board, sticking out to the right..

So you cannot assume the orientation of the connector on the circuit board matches the orientation in the schematic.

I hope that's clearer.
--
Julian, N4JO.


Re: Question about customizing the QLG2/QLG2-SE serial data #clock #gps

Mont Pierce KM6WT
 

On Tue, Aug 31, 2021 at 10:56 AM, Mont Pierce KM6WT wrote:
The clock works really well with the QLG1 gps unit.  However, seems to have a few issues when I try using the QLG2-SE with it.
  • Many times a minute, several Heartbeats are skipped..
  • The Seconds display is erratic, sometimes jumping forward and back, and sometimes advances by 2 seconds.
I got the Clock running great now with the QLG2-SE.  Sent the following command: 

$PGKC115,1,0,0,0*2B

 
From page 5 of the GK9501 document in the Group Files section (click here)

9. Command: 115
 
Set enable search mode
 
Arguments:
Arg1: "1", GPS on
      "0", GPS off
Arg2: "1", Glonass on
      "0", Glonass off
Arg3: "1", Beidou on
      "0", Beidou off
Arg4: "1", Galieo on
      "0", Galileo off
 
  Example:  $PGKC115,1,0,0,0*2B<CR><LF>


It works great BUT...  on power cycle, the setting reverts back to the default.   :(
Same problem Alan mentions when changing the baud rate.  It doesn't save it, and reverts back to 9600 on power cycle.


73
km6wt


Re: Question about customizing the QLG2/QLG2-SE serial data #clock #gps

Mont Pierce KM6WT
 

On Tue, Aug 31, 2021 at 11:37 AM, Alan G4ZFQ wrote:
I have some notes here https://sites.google.com/site/g4zfqradio/incircuitprogramatmel168#h.tpm1l60t46z
Thanks for the link, interesting reading.

NaviTrack is the utility to command the module.
NaviTrack is mentioned on the QRP-Labs G2 webpage near the bottom:

Note here https://www.ebyte.com/en/data-download.html?id=542&pid=485#load is the Navitrack software for the Ebyte module. The Navitrack software may be used to check it, see NMEA, satellites, send commands including the update command.

I downloaded and tried it, but the zip file seems to be incomplete.  I get an error pop-up stating:  "Call to DllRegisterServer failed".  It might be a missing file or a Win 10 issue...

In spite of the error pop-up, NaviTrack opens it's dialog window, but then crashes when I try to connect to the serial port.


Maybe Hans will comment regarding the clock, otherwise it looks like experiments.
I did already mention to Hans the issues I'm having, and, he's got it on his looonnnngggg list of things to do.
Anyways, I thought I try a few things in the meantime.  :)


On Tue, Aug 31, 2021 at 11:41 AM, Alan G4ZFQ wrote:
Yes, but my tests seem to indicate the QLG2 will not remember a different baud rate, reverting to 9600.
Maybe I did something wrong and you will find otherwise although I tried a few times.
Yes, I'm seeing the same thing.  I wonder if this is one of the parameters that would be backed up if I had the SuperCap installed ?
Either that, or software like the NaviTrack may be needed to store the config settings into it's internal flash?



Thanks,
Mont - km6wt


Re: LCD blank

Wayne Robertson
 

Julian, are you saying the "connector is rotated 180 degrees from the schematic" as it ought to be or are you saying it is incorrectly installed upside-down?


Mini 20 with 9 volt battery QSO possibilities

George Korper
 

Hi All,

I have seen several posts from group members who use 
a 9 volt battery with a QCX for testing. I have been using reverse beacon with my 49:1 endfed on 20 and been very excited by what can be achieved with a 1/2 watt at sundown. The Mini, key, battery and antenna all can  fit comfortably in the pocket of your jeans.

Anyone interested in  listening for my signal and attempting a contact please email me. 

Also anyone who has used a QCX at less than a watt please relate your experiences. 

73,
K3GK


2021 NJQRP Skeeter Hunt Resuts Take Two

Larry Makoski
 

The log summaries are in and the results have been tallied and the Scoreboard for the 2021 NJQRP Skeeter Hunt is ready for viewing : https://docs.google.com/spreadsheets/d/1-drxnlwD8qJtv0mcTaPzXWB-9tFrU11v/edit?usp=sharing&ouid=118035729102530956622&rtpof=true&sd=true

Mea culpa, mea culpa, mea maxima culpa! After posting the Scoreboard last night, I got an e-mail from Gene N5GW informing me that I flubbed when entering his numbers. I had entered the wrong number of S/P/Cs and had inflated his score. Now anyone else might have said, "Well, that's Larry's mistake ........" But not Gene! In true Amateur Radio and QRPer tradition, Gene did what was right, even though it dropped him a notch. You Skeeters are THE GREATEST - all of you! I am truly honored that you folks particpate in and seem to like and enjoy this event.

Congratulations are in order to:

AB9CA - First Place Overall

N5GW - Second Place Overall

NK9G - Third Place Overall

NK8Q - Fourth Place Overall

N0SS - Fifth Place Overall

And congratulations and thanks to all who participated - we had close to a 48% log submission rate which is fantastic - 123 out of 251 Skeeter sign ups. You are the ones who make this success that it is. See you again in 2022!

The Soapbox should be ready for viewing in a few weeks to be followed by certificates to those who qualified.

Larry W2LJ

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