Please do consider putting your files on Thingiverse or making
them available in some way.? It would be a great service to QCX
owners.
72,
Michael? KD4SGN
On 11/21/2017 11:35 AM, Kent
Vanderploeg wrote:
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Lovely, simple
design!? I also would very interested in printing one myself, if
you have any desire to share your work on Thingiverse.? Good
work!!!
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Lovely, simple design!? I also would very interested in printing one myself, if you have any desire to share your work on Thingiverse.? Good work!!!
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Re: I hate to complain....BUT!
Hello David,
You are quite right there is something wrong - and they would very much like to be decoded, rather than not :-)
I have come across this at 6m, 4m & 2m from time to time.
My solution is to change the WSPR base frequency to decode them and let them discover they are off frequency on the WSPR site.
Hopefully they will look at their decodes on the website (and there is probably only mine !) and discover the reason they are not being decoded (I don't know how to find out their emails, which would be better).
It is easy to make a mistake and the sooner one is aware of it then a correction can be made - if there is no information, nothing will happen.
Regards,? Ed,? G8BQR
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Update on C3 Canaeda 150 CG3EXP now VE0EXP
The research ice breaker Polar Prince which participated in the C3 Canada
150 voyage from Toronto Ontario Canada through the St Lawrence seaway,
along Canada's east coast, and through the North West passage ending in
it's destination of Victoria British Columbia reached it's destination
right on schedule at the end of October 2017.
The vessel has remained in that area since but is preparing to continue
it's journey south along the North American continent, through the
Panama Canal and then north to it's home port of Halifax Nova Scotia.
Permission has been obtained to permit the QRP Labs U3S to continue
transmitting and has subsequently had it's call updated to VE0EXP and
continues to transmit WSPR on the same schedule as did CG3EXP.
You will be able to follow along on aprs.fi after I start providing data
for VE0EXP.
cheers, Graham ve3gtc
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Yes, I like the case.? If you are selling I'm interested.
73; Kurt - W2MW
-------- Original Message --------
Subject: Re: [QRPLabs] QCX 3D print
From: "Michael Lloyd" < mikell@...>
Date: Tue, November 21, 2017 11:17 am
To: [email protected]
I don't know anything about 3D printing but I'll bet you could sell those. I really like the case.? 73 NE5U Mike
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I don't know anything about 3D printing but I'll bet you could sell those. I really like the case.?
73
NE5U
Mike
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That is indeed quite a nice design, clever idea with the recess for the controls.
Publish the design on thingverse or similar ?
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Re: qcx 1036 band filters
Follow the manual on L1-L4, unless you experience problems with performance. It's important to make them tidy and spread the turns out evenly, wind in the correct direction to get the leads to line up with the PCB. Perhaps worth to measure C25-C28, C30 before installing as they're equally important.
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Good evening
? Hans my qcx is well advanced
t1 did not pose a problem, on the other hand what are the last changes in force for l1, l2, l3, l4 there have been more mails giving different values I am a little lost!
thank you for your reply .
73 s' qro jo?l f6cht.
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Re: Firmware update with USBasp
FYI:? ?Ordered USBISP ATMEGA128 programmer from eBay(MA JINNA) 2 months ago. Received cancellation notice and refund from vendor yesterday.
Anyone successfully? ordered USBasp programmer from ebay?
Rick? KA8BMA
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FB! Mine a 40m #1320 shipped yesterday. The clock has started. Chauncey Baker
KD5JBK
EM15hl Cleveland County Oklahoma
SKCC#17411
On Nov 20, 2017 6:34 PM, "Keith VE7GDH" < ve7gdh@...> wrote: This is just a note to mention that my 80M QCX #625
shipped Oct 9 and arrived Nov 17. I didn't see the
GPS tucked in underneath at first, but it was there.
I can't wait to get it built, but I know it will be
a fun project.
--
73 Keith VE7GDH
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#971 shipped 2017/11/09 also arrived today in North Korea South Australia 2017/11/21 duration 12 days total. A lovely box, very nice box. Keeping unopened for now. Will open when back home safely or when need something to do, likely 20m. First job, next job, is to make an EFHW tuner for 30m QCX and put it in a more durable box.
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This is just a note to mention that my 80M QCX #625
shipped Oct 9 and arrived Nov 17. I didn't see the
GPS tucked in underneath at first, but it was there.
I can't wait to get it built, but I know it will be
a fun project.
--
73 Keith VE7GDH
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Re: Firmware update with USBasp
 -- Regards/73, Enno, PF5X
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Re: Firmware update with USBasp
Thanks for all the comments. I took the plunge (always afraid of bricking my processor ...) and used my €2 USBasp (bought on e-Bay by some French electronics outlet, which happens to have fast delivery with the lowest shipping cost) onto my QCX. My programmer had a 3.3/5V voltage jumper, so by taking it off there was no supply voltage available from programmer side.
I downloaded Extreme Burner AVR (). This is a brilliant, ultra simple program which co-installs THE USBlLIB0 DRIVERS !!! (in Win7 just tell Windows to install these despite them being unsigned, In Win8 and up you have to go the extra mile to get this done, see other posts and Google).
Fired up the program, fired up QCX, put the programmer in the USB slot of the PC and finally connected it to the QCX. Then, for testing, I started to read the Flash memory to check whether the communication was OK. Then loaded the 1.00d hex file, and chose 'write flash'. BE CAREFUL HERE AND DO NOT PUSH THE 'WRITE ALL' BUTTON as you will write the EEPROM as well and maybe even the fuses with the default values of the program. In particular that last one you will not want ...
Loosing the EEPROM content is just unhandy. I guess you have to re-program all settings. But better to prevent this ...
The write process takes only 30 sec or so.
Checked the CW-R (LSB) setting and yes it works now ! Thanks Hans for this fix.
--
Regards/73,
Enno, PF5X
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Re: U3S on Solar Power project, noob questions
Thanks to all for the tips, hints, information, and guidance on my U3S solar cell project. I apreciate it very much. I¡¯m trying to channel all the information into a usable plan to power my U3S with the same little Chinese solar cells that I also want to use on a future U3B flight. I guess it will come down to trial and error and a lot of experimenting with the different tips given on here. I¡¯ll keep you updated on any succesful set ups. ? Best 73, ? Michael PA7MDJ ?
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Re: JT-9 working well tans Atlantic on 2200 meters, but no spots uploaded?
Hi Chris,
I tried JT-9 on 6m a while back and found that "CQ G8BQR IO82" initially (despite being unable to complete a QSO !) and, after looking through the info for an alternative, found "DE G8BQR IO82" both of which were spotted.?
Incidentally, TX of JT-9 after a WSPR period also worked.
U3s, software v.3.09c
Regards,? Ed,? G8BQR
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The instruction photo is pretty clear and I can see part of the + sign on what is supposed to be the top of the battery. But when I put a voltmeter on the pins (before installation) I see a - 0.3 volts. That's a negative residual voltage on a new battery. Is that going to be a problem or is that normal for this type of battery.
I have zero experience with this type of battery and I have no idea what to expect.
Larry - W7IUV
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Re: Firmware update with USBasp
Hi Enno
Yes, you can use a standalone programmer like that to upgrade the firmware in a QCX chip.
Yes, it will only work with a crystal - the fuses are programmed for the QCX chip to use the external crystal (20MHz in this case). You cannot program the chip with no clock signal. That circuit will work, just connect a crystal across xtal1 and xtal2 pins. Just for programming purposes, any crystal should be fine e.g. 8MHz, 10MHz, 16MHz. Not more than 20. Theoretically xtal1 and xtal2 should also have a small capacitor to ground e.g. 10pF, 15pF, 22pF etc., but I have not found it to be necessary.
73 Hans G0UPL? ?
On Nov 20, 2017 5:57 PM, "Enno Korma" < enno.pf5x@...> wrote: On the same topic. Would it be possible to (re-)program the chip in a?stand-alone?programming circuit?according to this schematic:
I am not sure, because the chip might be programmed to expect an xtal oscillator. What I understand from the ATMEL datasheet is that during programming there need to be?some type of clock (either internal, external or xtal) running apart from the serial CLK signal provided by the SPI. (Clock choice is set with fuses I believe ...)
Anyone having experience with this?
--
Regards/73,
Enno, PF5X
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Re: Firmware update with USBasp
Just to let you know that I have successfully reprogrammed my QCX a couple of times with a USBTiny ISP with the power for both the programmer and QCX both coming from the USB port of my laptop. My programmer has a configuration jumper to allow separating the power but I left it on. Warren, I just checked, my USBasp tells the PC 50mA (USB View) so if the PC really limits power on the USB outlets then that's why mine does not work. I guess they are not all equal. 73 Alan G4ZFQ
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Kurt Zimmerman
Daniel Ekman SA2KNG
Enno Korma, PF5X