Date   

Re: QLG2 case STLs

cwebs@...
 

Don, you will be the only one now that you posted your Boo Boo. CARL


Re: QLG2 case STLs

 

Printing 3 of 4 pieces now...am I the only one who was scratching their head a bit before realizing you need to print two of the cover pieces, not just one?b


Re: Just completed a QCX Mini 20M build #20m

Hans Summers
 

Hi Steve

There should not be a problem with the keyer in any of the recent firmware versions including everything that has been supplied with any QCX+ or QCX-mini. Some earlier firmware versions did have some keyer bugs. 

One thing to check is, whether you still have the same issues when keying in practice mode (see configuration in the keyer menu). If not - then that would indicate your issues are caused by RF in the shack interfering with keying. 

Many keyers have slightly different quirks - and if you have used one keyer for a significant period of time it may be that you got used to its quirks. 

The QCX keyer has been validated against an original Kurtis keyer chip which is where Iambic started. So it shouldn't have any issues. 

73 Hans G0UPL 


On Mon, May 31, 2021, 18:43 K9NUD-Steve <k9nud@...> wrote:
HI all, I just finished my build, and it works great. I'm getting 5W output to a dummy load @ 13.8V, 4W @ 12V. The only bug so far is with the keyer, which appears to be somewhat common. With Iambic A, I cannot repeatedly tap out dits (like when I make a mistake and want to send dit dit dit dit). It will skip dits if I tap too fast. Switching to B moves the problem over to the dah, which solved my problem. 

What a great little rig. I'm making lots of contacts. I love QRP, and I love this little radio. I think I need another one or two.


Just completed a QCX Mini 20M build #20m

K9NUD-Steve
 

HI all, I just finished my build, and it works great. I'm getting 5W output to a dummy load @ 13.8V, 4W @ 12V. The only bug so far is with the keyer, which appears to be somewhat common. With Iambic A, I cannot repeatedly tap out dits (like when I make a mistake and want to send dit dit dit dit). It will skip dits if I tap too fast. Switching to B moves the problem over to the dah, which solved my problem. 

What a great little rig. I'm making lots of contacts. I love QRP, and I love this little radio. I think I need another one or two.


Re: QCX "spy radio"

wa8yan.radio
 

Wow.... that is a NICE looking rig.  I'm inspired.  Phil WA8YAN



Sent from my Verizon, Samsung Galaxy smartphone


-------- Original message --------
From: Jan PA3GSV <pa3gsv@...>
Date: 5/30/21 1:40 PM (GMT-05:00)
To: QRPLabs@groups.io
Subject: [QRPLabs] QCX "spy radio"

hi,

A radio friend suggested that it would be a good idea to post some pics of my version of the QCX. (tnx Ben ;-)  )
It is loosely based on the really cool looking Russian "Proton" spy radio. Had a case lying around forever which had some similarities with this radio.
Ben donated the single lever Palm key (tnx agn!). It is a complete self sustained radio station. In the box is a 12V 7Ah battery, a tuner for an end fed antenna, the antenna itself, key, and a headset.

73 Jan - PA3GSV


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

 

Aha that's why I never saw that, it wasn't available, isn't available on my QCXs which are still on v1.00b and c. :)

On 31 May 2021, at 15:04, Pat <pat.ring1@...> wrote:

On Mon, May 31, 2021 at 09:45 AM, k6whp wrote:
This is what software developers might call an "Easter Egg" -- a hidden feature
It's not an Easter Egg, and it's not hidden at all.  It's in the documentation in section 3.2 (https://www.qrp-labs.com/images/qcxp/firmware/1.07/OpMan107.pdf).  I recommend everyone give it a read.

From the documentation:  "Setting speed to 0 enables “Straight” Key mode regardless of the keyer mode setting; this is useful for quickly being able to key down for antenna tuning purposes. It is much easier than going into the Keyer menu, selecting straight key mode, doing the tune up, then going back into the menu to change to Iambic again."

Using the documentation, I created a one-page cheat sheet, which includes the method.  You can see that here:  http://ffauploads.com/qcx_mini_cheat_v107a_21a.html  It's not always convenient to have the entire manual, so I print this out and keep it with the Mini.


--
Love 30m and CW?
http://www.30cw.net


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

Pat - N0SHU
 

On Mon, May 31, 2021 at 09:45 AM, k6whp wrote:
This is what software developers might call an "Easter Egg" -- a hidden feature
It's not an Easter Egg, and it's not hidden at all.  It's in the documentation in section 3.2 (https://www.qrp-labs.com/images/qcxp/firmware/1.07/OpMan107.pdf).  I recommend everyone give it a read.

From the documentation:  "Setting speed to 0 enables “Straight” Key mode regardless of the keyer mode setting; this is useful for quickly being able to key down for antenna tuning purposes. It is much easier than going into the Keyer menu, selecting straight key mode, doing the tune up, then going back into the menu to change to Iambic again."

Using the documentation, I created a one-page cheat sheet, which includes the method.  You can see that here:  http://ffauploads.com/qcx_mini_cheat_v107a_21a.html  It's not always convenient to have the entire manual, so I print this out and keep it with the Mini.


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

Gregg Myers
 

Sorry, my email wasn't updated and question already answered!

73,
Gregg


On Mon, May 31, 2021 at 8:52 AM Gregg Myers via groups.io <gregg.w7grm=gmail.com@groups.io> wrote:
Or... leave the QCX in keyer mode. Press the select button for instant access to keyer speed and set the speed to 0 WPM. Then tune away with your keyer paddle...

73,
Gregg

On Sun, May 30, 2021 at 11:40 PM k6whp <k6whp@...> wrote:
On Sun, May 30, 2021 at 08:26 PM, VK5EEE wrote:
No you're not missing anything, on a CW rig indeed "tune" is hitting the key! My expensive Yaesu and Icom don't have a tune button either, what would I use it for? :-) Let us know how you go with your new QCXs and which bands they are for?
 
The direct answer is you would use it to send a signal -- irrespective of power level and duration -- to the tuner or VSWR meter to get an idea of the match. Note that this is more for manual tuning; the staccato dits or dahs do not provide a solid signal to indicate VSWR even with an "AVG" function. Some of the old keyer chips had a "tune" mode involving a single press and sending a character such as "T" or "X" with the next dit or dah sent ending the tune mode. Several examples are the NorCal/Wilderness Radio 40A KC1, the Wilderness Radio Sierra KC2, the 1Watter and 5 Watter keyer chips, etc.

In order to imitate this feature, the QCX+ (and Mini) require the following steps, I believe:

(1) Long press of "SELECT" button.
(2) Rotate to option 4 "KEYER".
(3) Press "SELECT" to go to option 4.1 "KEYER MODE".
(4) Rotate to "STRAIGHT MODE".
(5) Press "SELECT" to save and exit.

Then your paddle becomes a straight key and you can use that to trigger or adjust the tuner as necessary, After you're all set up, you repeat the the above to select "IAMBIC A/B" or whatever. 

Look I am not complaining. I just did not see the option and found it surprising that Hans did not provide a shortcut in the firmware.

I presently have a just-built 20m QCX+ that ir rapidly becoming one of my favorites, a 30m QCX+ kit and a 20m QCX Mini.
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

Gregg Myers
 

Or... leave the QCX in keyer mode. Press the select button for instant access to keyer speed and set the speed to 0 WPM. Then tune away with your keyer paddle...

73,
Gregg

On Sun, May 30, 2021 at 11:40 PM k6whp <k6whp@...> wrote:
On Sun, May 30, 2021 at 08:26 PM, VK5EEE wrote:
No you're not missing anything, on a CW rig indeed "tune" is hitting the key! My expensive Yaesu and Icom don't have a tune button either, what would I use it for? :-) Let us know how you go with your new QCXs and which bands they are for?
 
The direct answer is you would use it to send a signal -- irrespective of power level and duration -- to the tuner or VSWR meter to get an idea of the match. Note that this is more for manual tuning; the staccato dits or dahs do not provide a solid signal to indicate VSWR even with an "AVG" function. Some of the old keyer chips had a "tune" mode involving a single press and sending a character such as "T" or "X" with the next dit or dah sent ending the tune mode. Several examples are the NorCal/Wilderness Radio 40A KC1, the Wilderness Radio Sierra KC2, the 1Watter and 5 Watter keyer chips, etc.

In order to imitate this feature, the QCX+ (and Mini) require the following steps, I believe:

(1) Long press of "SELECT" button.
(2) Rotate to option 4 "KEYER".
(3) Press "SELECT" to go to option 4.1 "KEYER MODE".
(4) Rotate to "STRAIGHT MODE".
(5) Press "SELECT" to save and exit.

Then your paddle becomes a straight key and you can use that to trigger or adjust the tuner as necessary, After you're all set up, you repeat the the above to select "IAMBIC A/B" or whatever. 

Look I am not complaining. I just did not see the option and found it surprising that Hans did not provide a shortcut in the firmware.

I presently have a just-built 20m QCX+ that ir rapidly becoming one of my favorites, a 30m QCX+ kit and a 20m QCX Mini.
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

k6whp
 

On Sun, May 30, 2021 at 11:39 PM, Hans Summers wrote:
There IS a shortcut, just click the left button and turn the keyer speed to zero. That puts it into "straight key" mode suitable for tuning. 
Tested and verified. I never doubted you for an instant, Hans. This is what software developers might call an "Easter Egg" -- a hidden feature. It is certainly more convenient than what I suggested above and is MORE than adequate. 

Thanks..and thanks to Mont and all others for the participation. I know this is probably sacrilege, but I very fond of the QCX+ radio! Along with its design and the utterly handsome case (and spacious interior), it is a "real" radio. 

While being a crusty trilobite who doesn't believe "real" radios fit into shirt pockets, I wish to reassure the gathered throng that I DO have a 20m Mini I will be building -- if only for the exquisite engineering that went into the miniaturization process.
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."


Re: QLG2 case STLs

cwebs@...
 

Thank you Dean for your work  on the STLs. Mine is printing at this time. Carl AB1ZI


Re: QLG2 case STLs

Jim Sheldon
 

Powered up, Antenna connected - lockup after 12 hour unpowered was 15 seconds!  No super cap added to the board.

As promised, a picture of my version of the front panel - 2mm thick, no mounting pedestals for the GPS.  GPS mounts on the back of the display and display mounts directly to front panel (small standoffs as part of the mounting to space it properly..

Jim, W0EB


Re: QLG2 Error in manual-1

John Pagett G4YTJ
 

My dvm has a diode test setting which passes enough current to light an LED.
Older inefficient diodes may require subdued lighting,  but it's a handy facility that's always there when building kits.

John
G4YTJ 

On 31 May 2021 12:45, "Bob M." <wa1mik@...> wrote:
A quick and failproof method I use is a small (3-12VDC) voltage source and a resistor in series, then I touch the LED leads to that combination. If it doesn't light up, reverse it. If it still doesn't light up, it's probably a dud. Once it lights up, cut one lead shorter so it matches the new LEDs (anode=longer) and install it. The flat side on some LEDs is often hard to see and even harder to feel, and I've had LEDs made incorrectly where the flat side was not the cathode. You can also check all those junque-box LEDs with equal lead lengths before use.

With all the built-in test features incorporated into most QRP Labs kits, something to test the LEDs before installation seems rather easy. Also, turning on all LEDs and flashing them in a particular sequence at power-up (red, yellow, green for example) would be a cute feature for a future firmware revision.


Re: QLG2 Error in manual-1

cwebs@...
 

Hans, you are forgiven. Bob a coin cell works good for testing LEDs. Carl


Re: QLG2 Error in manual-1

Hans Summers
 

Hi Bob
 
With all the built-in test features incorporated into most QRP Labs kits, something to test the LEDs before installation seems rather easy.

QCX, QCX+, QCX-mini... none have any LED. In fact the only QRP Labs kits that have an LED are the ProgRock kit and 50W PA kits. There is no ambiguity about which way to insert the LEDs since they are a known part and it is known which lead is for cathode, etc. Unless you feel like testing every single component prior to installation - which is certainly an ethos - but for a QRP Labs kit to include all test equipment to test all components prior to installation would probably be overkill... in any event... in any event, in the case of the LED, the existing circuit in these two kits could be used prior to soldering, to make sure the LED is the right way around. 

In QLG2, the three LEDs are 0603 SMD and are already soldered to the PCB. The manual also provides guidance, and the board, facilities, for people who wish to connect external LEDs such as for installation in a front panel. Again it would be quite easy to use the existing board to test the LEDs prior to installation. 
 
Also, turning on all LEDs and flashing them in a particular sequence at power-up (red, yellow, green for example) would be a cute feature for a future firmware revision.

It isn't possible - the LEDs in QLG2 are not connected to the microcontroller, they are driven by the GPS. Although technically it would be possible if the microcontroller insisted, for it to control the yellow LED. 

73 Hans G0UPL
http://qrp-labs.com


Re: CQ WPX CW 2021 with QCX+

Mel Snyder
 

Cristi, that is spectacular! It didn’t hurt that you have a desirable prefix and your antenna is at an enviable 30 meters. But 613 contacts on all continents on 40 meters with 5 watts is truly remarkable. Your observations. About your QCX+ are the same as mine: sensitivity and selectivity are exceptional. 

I wasn’t into the contest except for perhaps 3 hours (my only “contest” each year is about 8-10 hours on our “Filed Day". But I decided to do that with my “QRO” KX3 on 20 meters after first testing with my 40 meter QCX+ into my Butternut HV9V - and seeing how relatively easy it was to make contacts at 5 watts.

You’ve likely won the QRP division for YO!

Mel, W3PYF

,

On May 31, 2021, at 4:11 AM, cris blak via groups.io <cyo3fff@...> wrote:

Hello All,

CQ WPX CW 2021 just ended and I'd like to share with you my experience.
I'm posting here due to the QCX+ uses in the contest.
At the fist look I thought it will not work to use QCX+ in such a big contest due to its simplicity but...I give it a try so...

Category was QRP 40m.
RIG QCX+ with 5W output through a home brew ATtunner (see pictures - was taken as it was used during the contest! - means with open case); just before the contest I thought it will be best to have a "still unfinished " AGC circuit so I build the "simple AGC" (from this forum) on a breadboard. Another "keeping" modification was the 5V regulator replacement with switching mode DC-DC converter (which does not bothering the RX at all).
ANT was INV.V  for 40m band on 30m high building.

On short, I made 613 QSOs with all continents (except Antarctica). This is a QRP personal record ever.

The sensitivity of the RX was more than enough hearing almost everything. The trouble was with the overload of the front end.
As I mention on my previous measurements (posted on this forum), a signal over about S9+25dB will overload the RX of the QCX. So it was not hard for many signals on this contest to do so! Those were very distorted but readable.
The good part was that about 300 400Hz away from the strong signal, the overload just vanished and the weak signals could be received.

Of course is not IC7300 with waterfall and spectrum scope but it was leading me to a good result I guess.

Cannot described the joy to use such a small piece of HW to work DX through pile-up!

You have to try it.

73 de YO3FFF
Cristi
<20210531_091625.jpg><20210531_091638.jpg><20210531_092412.jpg><20210531_092448.jpg>


Re: QLG2 Error in manual-1

Bob M.
 

A quick and failproof method I use is a small (3-12VDC) voltage source and a resistor in series, then I touch the LED leads to that combination. If it doesn't light up, reverse it. If it still doesn't light up, it's probably a dud. Once it lights up, cut one lead shorter so it matches the new LEDs (anode=longer) and install it. The flat side on some LEDs is often hard to see and even harder to feel, and I've had LEDs made incorrectly where the flat side was not the cathode. You can also check all those junque-box LEDs with equal lead lengths before use.

With all the built-in test features incorporated into most QRP Labs kits, something to test the LEDs before installation seems rather easy. Also, turning on all LEDs and flashing them in a particular sequence at power-up (red, yellow, green for example) would be a cute feature for a future firmware revision.


Re: DUMB QUESTION OF THE DAY: QCX+ "TUNE" Function

Mel Snyder
 

The “turn speed to zero” is how I also do it. My KX3 has a “Transmit” button that will put out full carrier - especially valuable when bypassing the ATU to determine your real SWR at different band points. The ATU function button tunes with 3 watts.

I don’t have to think back 30-40 years for the Kenwood tune feature - my QRO rig is my SK OM’s TS940SAT. But after so many years, I don’t risk the finals to that "power-back in tune” function - I dial back the carrier to a few watts, hit the ATU button and key down as its ancient, motor-driven ATU grinds it way to lowest SWR. 

W3PYF - or as my OM (who passed at 85 and would have been have been 101 this year) used to say on AM and SSB “Pretty Young Females”



On May 31, 2021, at 12:45 AM, Mont Pierce KM6WT <de.km6wt@...> wrote:

On Sun, May 30, 2021 at 08:26 PM, VK5EEE wrote:
No you're not missing anything, on a CW rig indeed "tune" is hitting the key! My expensive Yaesu and Icom don't have a tune button either, what would I use it for?

"Tune" functions typically xmit a solid carrier at a lower power level to avail the operator time to tune "Tube finals tank circuits", or for transistor rigs, tune the antenna, before putting out full power. 

Also, for rigs with AM/FM/SSB modes, the tune function saves having to switch modes, reduce power, etc. to get a small signal needed for just adjusting the antenna tuner.

With transistor rigs, no more final tank circuits to manually tune.
With QRP rigs, you're already on lowest power setting (usually).


That question brings back some old memories of my Kenwood TS-520 30/40 years ago...  what did they have?  6146s


For QCX rigs, hit the left button briefly, turn the keyer speed down to "0" to temporarily invoke Straight Key mode, then press the key.


Anyways...

73
km6wt



Re: QCX "spy radio"

Jan PA3GSV
 

On Mon, May 31, 2021 at 10:35 AM, Pete G4IOA wrote:
Vy nice Russian set.  Here's my attempt at a QCX/Paraset.
I may be using it this evening for the QCX party on 40m at 19:00 UTC.
CUSN
Pete. G4IOA
Looking vy nice! We are all set for covert operations! :-)
Are the tubes functional in any way?


Re: QCX "spy radio"

Jan PA3GSV
 

On Sun, May 30, 2021 at 10:06 PM, jerry@... wrote:
Tell me what to write, and I will translate it to Russian...
громкость - volume
настройка - tuning
диапазон - band
кв - HF/shortwave

I might expect to see them abbreviated on front panels.
гром.
наст.
диа.

Tnx for the offer, maybe I'll make a second faceplate :-)