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Re: QCX WARC Party - October 2024
Good afternoon all, ...and it was a good afternoon for me at least.... 5 contacts on 30m during the Party on my QCX-mini, PA3BYW, ON7DQ, PA0CMU, G3XJS all QRP plus DL0EL/MM who I'm sure wasn't
By Chris Wood · #131350 ·
Re: QMX + SSB - any hardware mods neded
This has been asked and answered many times already. Believe it or not: Its only a firmware update. No hardware mod needed.
By Andreas DM7AK · #131349 ·
Another USB port question (requests?)
Is it possible to incorporate the PSx command ? ?I enjoy remote as well, and when something goes awry I usually power down the entire system using a WiFi wall wart to the rig power supply. In the
By Richard Hattaway · #131348 ·
QMX + SSB - any hardware mods neded
I'm excited to see that Hans has got the SSB working in his latest video on YouTube.? I'm just wondering if there will be any hardware changes or mods required to the current QMX+ to use SSB or will
By Alan Artt · #131347 ·
Re: QDX rev 6 image freq problem
Thanks Jerry, good advice. I tried heating and wiggling while watching the audio on a soundcard scope. No sign of life in the left channel. And as I measured good signals/voltages on the ADC chip pins
By Fredrik (OH1HSN) · #131346 ·
Re: QMX article in the QST
You should send one here to get tested? http://www.sherweng.com/table.html Joe WB9SBD
By Joe WB9SBD · #131345 ·
Re: I am still being amazed by the QMX I recently built
That¡¯s awesome! Amazing little creatures these QMX!!! As for me.. I took my QMX out camping this past weekend for its maiden voyage! I was way up in the mountains of Idaho USA and I made 10
By Mike KK7MMN · #131344 ·
Re: QMX+ Dev Kit
Is this what you are looking for? http://shop.qrp-labs.com/SPAREPARTS/tallheader
By Ben WH6FDU · #131343 ·
Re: QDX rev 6 image freq problem
If the problem occasionally changes: Try applying heat, cold, and mechanical pressure, this might localize the problem. Perhaps flex the board a bit (but not too much!), this might show if it's a bad
By Jerry Gaffke · #131342 ·
Re: QMX not powering on
Remove the GPS module if you installed it.? My power jumper under it was too big and it grounded out on the GPS antenna connector.? I had the exact same symptoms.? It came to life when I removed
By Tom WE8TOM · #131341 ·
Re: QMX article in the QST
Maybe Rob Sherwood will eventually take a look at the QMX+. -- John AE5X https://ae5x.blogspot.com
By John AE5X · #131340 ·
Re: Sending prosigns via CAT KY
Hello Andreas Agreed, these would both be useful items. I have added them to my development list for the next firmware version. 73 Hans
By Hans Summers · #131339 ·
Re: QDX rev 6 image freq problem
Thanks Oleh! I'm quite confident my problem is further in the chain, as I see nice I and Q signals after the audio amplifiers = at the inputs of the ADC (attached screenshot, measured over the
By Fredrik (OH1HSN) · #131338 ·
Re: QMX not powering on
I had same simptoms recently. Pull out smps, measure vdd to gnd resistance if around 2ohms thats bad, you have a short Measure ESR of tantals on vdd line of PCM1804 if any of the two shows over 60
By Ivica - YU1QRP · #131337 ·
Re: QCX mini can transmit for 10-30 seconds then output fizzles out and will not transmit until cooled down. #20m #ic3 #qcxmini #troubleshooting
Like I said ! Bruce says " *Don¡¯t* get the pre programmed ones"
By Bruce Akhurst · #131336 ·
Re: Clear SWR Protection "S" through the USB port?
Hans, It is wonderful to be associated with an OUTSTANDING vendor. You guys are the BEST! Thanks, Sam Hanie, AC4OW [email protected]> wrote:
By Sam Hanie · #131335 ·
Re: QMX article in the QST
Hi Shirley Yes, I thought about that too. I used to scoff at the "excuses" that conventional measurement techniques of some performance characteristics don't work properly on SDRs compared to analog
By Hans Summers · #131334 ·
Re: QMX not powering on
Thanks for the pointers. I initi6had the current limit set to around 100mA and then increased it to 500mA, but still no joy. Stans explanation of what this component is doing is very useful, I will
By Matthew M0MZB · #131333 ·
Re: QMX article in the QST
SDRs are notoriously difficult to measure with conventional lab techniques, so it's possible the ARRL Lab got it wrong. I'm pretty sure they DID get that blocking gain compression number wrong. It's
By Shirley Dulcey KE1L · #131332 ·
Re: Clear SWR Protection "S" through the USB port?
Hi Sam It's good that there's a workaround however, I think it would be tidy for there to be a CAT command which returns the SWR protection (and other kinds of protection, like battery voltage)
By Hans Summers · #131331 ·