Hello Hans.
Here is a screen capture from a SA of a 10 dbe the precis Mhz from a GPSDO and the measurment from the progrock (its SW ver 1.0) and the window for correction is 1.
Is it what should bede Joe. expected?
TIA
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Re: USBISP AVR programmer of choice
I use the AVR programmer sold by Atmel:
?
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
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----- Original Message -----
Sent: Thursday, October 19, 2017 8:01 AM
Subject: [QRPLabs] USBISP AVR programmer of choice
Greetings all;
? ? What is the programmer of choice used for upgrading the onboard IC?? Please provide links.
73;
? ? Kurt - W2MW
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Re: USBISP AVR programmer of choice
I use the AVR programmer from Atmel.
?
Ihttp://www.robotshop.com/en/usb-avrisp-xpii-avr-programmer.html?gclid=CjwKCAjwmqHPBRBQEiwAOvbR85eS1k3RyevpFMi1QRLDuprB6BJAesCss8OI32GPAsGKpxmJEG4fnhoCrt8QAvD_BwE
?
?
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
?
toggle quoted message
Show quoted text
----- Original Message -----
Sent: Thursday, October 19, 2017 8:01 AM
Subject: [QRPLabs] USBISP AVR programmer of choice
Greetings all;
? ? What is the programmer of choice used for upgrading the onboard IC?? Please provide links.
73;
? ? Kurt - W2MW
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Re: USBISP AVR programmer of choice
I've always used either the USBasp or the USBtiny to use on the U3S.?
Unfortunately I managed to bugger one of my QCX IC's up using the USBasp but I'm pretty sure I was to blame for that as I was too eager to update to version b software.?
Luckily I had another one from my second kit and used the USBtiny which gave me no hassle.?
I've never had a problem with the USBasp in the past except for this one occasion. User error was certainly to blame though.?
There is a very good right up on the QRPlabs site.?
This uses the arduino and also gives excellent results.?
If I were to say which one I'd use in future, I'd probably say the Tiny as it seems a bit more reliable. For me anyway.?
They're cheap enough to have one of each so I'd say get one of each and give them a whirl.?
I use AVRDUDESS on the U3S and on the QCX I'm pretty sure I wiped the eep side of things and this is bad as I found out..!!! As I say, too eager and in a rush.?
But if you don't experiment you never find out. I found out what not to do Hi.?
If you google USBasp or USBtiny you'll come across dozens of these for sale.?
Regards, James.?
On 19 Oct 2017, at 16:02, Kurt Zimmerman < kurt@...> wrote:
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Show quoted text
Greetings all;
? ? What is the programmer of choice used for upgrading the onboard IC?? Please provide links.
73;
? ? Kurt - W2MW
|
USBISP AVR programmer of choice
Greetings all; ? ? What is the programmer of choice used for upgrading the onboard IC?? Please provide links.
73; ? ? Kurt - W2MW
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Hi Lee.
The stand-offs were not shortend .There is a 0.2 mm space between the LCD and the top.
73? John PD7MAA
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John (PD7MAA),
Did you use the plastic stand-offs in the kit, or, use your own
stand-offs?? If you used those supplied in the kit, did you have
to file anything off of them to fit in the aluminum cabinet??
Since the PC board is mounted from the bottom, the length of the
stand-offs are critical for proper exposure of the display through
the top window cut-out.
Lee, w0vt
On 10/14/2017 4:20 AM, John PD7MAA
wrote:
All info on my blog
:.
73 John PD7MAA
_._,_._,_
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Re: 5 watt amp kit - no output
Trifilar ? It states in the appnote that a 25t inductor should be used.
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Re: QCX 40 up and running
Well done Ken.? Good news and good dx! David G4YVM
On 19 Oct 2017 1:51 pm, "Ken KM4NFQ" < km4nfq@...> wrote: Greetings,
I ordered my QCX Kit on 21 August. I got my email shipping notification on 2 October, and it arrived on 11 October. I finished building and aligning it on 18 October. This is a snapshot of the QCX powered by a 9V battery, with Walkman headphones, and with a homebrew QRP Dummy Load attached.
?
A GPS Receiver Kit was ordered at the same time, and it will be my next build. Then I will be learning how to use it. Regards, Ken, KM4NFQ
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Re: QCX 40 up and running
Greetings,
I ordered my QCX Kit on 21 August. I got my email shipping notification on 2 October, and it arrived on 11 October. I finished building and aligning it on 18 October. This is a snapshot of the QCX powered by a 9V battery, with Walkman headphones, and with a homebrew QRP Dummy Load attached.
?
A GPS Receiver Kit was ordered at the same time, and it will be my next build. Then I will be learning how to use it. Regards, Ken, KM4NFQ
On Wed, Oct 11, 2017 at 8:44 AM, Lee <Lee@...> wrote:
Greetings all, the QCX 40 meter rig came on line yesterday and?is running very nicely.? On first power up the display was barely readable and the processor continuously cycled through reset.??Turns out L6 which feeds 5 volts to the processor was open.? Shunted it with a 10uH choke I had on hand and all is well.? Very impressive radio!? Thank you Hans!
?
73,
-Lee-
WA3FIY?
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QCX + NESCAF = best rig ever?
Did anybody tested the QCX with NESCAF filter already?
If you will add the NESCAF filter to QCX then you will?not find?better QRP?transceiver in the shack... I believe?;)
73 - Petr, OK1RP
--
B:
G+:
G+:
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Re: 20m QCX - output power issue
Hi Olgierd,
I had some similar problems with my 20m QCX.? The issue of output power changing after key down was due to the two inner low pass filter capacitors, C25 and C26 I think.? I changed them for some 200V ATC capacitors and the power output then remained stable after key down.?? The next issue started after trying WSPR.? This is the same as your key down sometimes with high power and sometimes with low power.? After touching up all the solder joints and getting nowhere, I changed the PNP key shaping transistor Q6 (2N2907) and it was fixed.? This transistor is running close to its limits and has been replaced with an MPS751 in later kits I understand.
Cheers, Glenn VK3YY.
On 19 October 2017 at 18:20, <opilarczyk@...> wrote: Hi everyone,
I've completed my #391 QCX build for 20m. The receiver works well, but I discovered a strange problem with the power going out, as on the video:
I'll try to trace the path of signal with my oscilloscope soon, but maybe someone here experienced such behavior or has any idea about the probable cause. The PA section isn't too complex so there's just a few elements to check.
Lovely rig:-)
Olgierd SQ3SWF
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20m QCX - output power issue
Hi everyone,
I've completed my #391 QCX build for 20m. The receiver works well, but I discovered a strange problem with the power going out, as on the video:
I'll try to trace the path of signal with my oscilloscope soon, but maybe someone here experienced such behavior or has any idea about the probable cause. The PA section isn't too complex so there's just a few elements to check.
Lovely rig:-)
Olgierd SQ3SWF
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Re: Controlling U3S with Microcontroller?
Hi Dan
The U3S software is not open-source.?
For your project, you could consider an Arduino, and the QRP Labs Arduino shield? with Si5351A Synth module and a Low Pass Filter for the band of your choice. The Arduino shield has the same PA as the U3S, and you can use this set-up as a transmitter. You can find Arduino examples on the web page too, that show how to configure the Si5351A Synth.?
73 Hans G0UPL
On Wed, Oct 18, 2017 at 8:56 PM, <cmdrdan@...> wrote: Hi,
I am a high school student about to get my general licence working on an environmental project. I need to send back small amounts of data, and use relatively little power to do so. I was looking at using a U3S to send this, but I need a way to control it from an embedded platform (such as an Arduino or STM32). I looked around, but I cannot find any mention of an I2C/SPI/etc interface, or the source code for the firmware. The closest I came was?, where a custom firmware was mentioned (but I cannot find that actual firmware). Can someone give me some advice on how I might go about this?
Regards,
Dan Stutman
K1DAS
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Dead/Damaged SI5351A Chip in CW Transceiver?
I¡¯ve assembled my CW transceiver kit and started on alignment. All was good until I tried aligning the BPF.
The alignment screen works but no amount tuning of C1 will produce any signal or peak. Going through and checking voltages around the board shows the expected voltages with the exception of Clock 1 which has no reading, Clock 0 has the expected 1.7volts. I¡¯ve attempted to re-solder the pads on the SI5351 by flooding the pads and then removing excess solder. No change Clock 0 works but nothing from Clock 1. Also checked to make sure the Clock 1 line is not shorted.
Do I have a damaged chip? Any other tests that can be applied?
Nigel VK6NI
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brick sized HT rigs, is it time for them to return?
after a friend mentioned he had one of these older FM HTs, I noted to myself that a package that large today might be enough to house an entire qrp HF+VHF SSB transceiver! what are your thoughts?
here is the skinny on the example.
Justin N2TOH
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Hello all.....
I just joined the WSPRnet. I have been qrp most of my licensed period.
I use an HW-8, Argo II, V, VI for qrp cw on 15m and 40m.
I hope to have a QCX transceiver for 40m and 17m.
How does WSPR program function after you log in?
Can it also be used with the?HW-8, Argo II, V, VI.
I apologize but getting my feet wet in this area.
Any information would be greatly appreciated!
73!
Pete
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Re: Still No WSPR With U3S!
Hello Hazarda,
You mean like the way none of your posts has traced back to a simple
thank you to those that have tried to assist you ;) Glad you are now
receiving spots, but a simple courtesy seems lacking... Probably a
language thing, but your English otherwise seems excellent. I'll just
go brush my teeth, I taste bitterness.
Wednesday, October 18, 2017
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Show quoted text
Whatever this problem was, the doomsday reset apparentlyseems to
have fixed it. I don't know why. Can't guess. Don't care. System resets do magical things. Back to the original power with no problems. For the first time, this unit is getting remote spots. I should take comfort in the fact that of all the problems and
miseries I've had from these units, not one has traced back to a
construction error on my part. _._,_._,_ -- 2E0ILY Best regards, Chris mailto:chris@...
--
Best regards, Chris Wilson (2E0ILY)
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Re: Controlling U3S with Microcontroller?
Dan K1DAS
Sounds like an interesting project.? I have been doing something along the same
lines, but using a and Morse Code as the communication protocol.?
There are examples and libraries available on-line for sending and receiving Morse
Code with an Arduino.? Data rates are slow, but the protocol is well known and easy
to work with.? Others (the purists clan) will probably tell you to use other protocols.
Pixie transceivers I am using are the design shown on Roger G3XBM's web site.
?
You could use almost any of the QRP transceivers that are shown on the Internet,
including the U3 series from Hans G0UPL .
Some have more power, but for short range telemetry almost any will work.? If you
want to use the Internet as part of your data link, things get a bit more complex but
there is Arduino example code for that as well.
Contact me off-group if you want to talk more about this.?
Arv? K7HKL
_._
On Wed, Oct 18, 2017 at 11:56 AM, <cmdrdan@...> wrote: Hi,
I am a high school student about to get my general licence working on an environmental project. I need to send back small amounts of data, and use relatively little power to do so. I was looking at using a U3S to send this, but I need a way to control it from an embedded platform (such as an Arduino or STM32). I looked around, but I cannot find any mention of an I2C/SPI/etc interface, or the source code for the firmware. The closest I came was?, where a custom firmware was mentioned (but I cannot find that actual firmware). Can someone give me some advice on how I might go about this?
Regards,
Dan Stutman
K1DAS
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Re: Still No WSPR With U3S!
Whatever this problem was, the doomsday reset apparently seems to have fixed it.? I don't know why.? Can't guess.? Don't care.? System resets do magical things.?
Back to the original power with no problems.?
For the first time, this unit is getting remote spots.
I should take comfort in the fact that of all the problems and miseries I've had from these units, not one has traced back to a construction error on my part.
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Kurt Zimmerman
John PD7MAA
Daniel Ekman SA2KNG
David Perry
Glenn S
dypete
Hazarda Masklo