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QMX+ onboard microphone #QMXplus
What's the short story on why the onboard QMX+ microphone doesn't work (yet). Is there an upcoming solution? Just curious, Roy de K2RMA
By Roy Ashkenaz · #146181 ·
Re: #qmx #Firmware release 1_02_000 #qmx #firmware
It was said, by one with whom I agree: "Does not seem that showing the rx level on the radio primary screen should depend on whether there is an AGC function. Irregardless though, wonder why AGC does
By Fred Murray · #146180 ·
Updated Wiki Page: QMX QMX_p kernel failures #wiki-notice
The wiki page QMX QMX_p kernel failures ( /g/QRPLabs/wiki/39740/222925 ) has been updated by @Ludwig_DH8WN <DH8WN@...>. Compare Revisions (
By Group Notification <noreply@...> · #146179 ·
Re: QMX died before i got a chance to transmit.
Teddy, please read this page ( /g/QRPLabs/wiki/39740 ) from the QRP Labs Wiki. 73 Ludwig
By @Ludwig_DH8WN · #146178 ·
Re: RF Amp using the now cheap GaN-FET's
Allison, Some of them wall warts are pretty good at radiating RF. That being said, creating a clean signal at 30mhz is a significantly different job than designing a 500khz SMPS.? As you well know. A
By Jerry Gaffke · #146177 ·
Re: WSPR without GPS unit
I had a similar problem but the screens said "WSPR Power" rather than "WSPR Call". Over and over again I re-entered my call sign, getting no change. Then I realized that "WSPR Power" needed to be
By Mike Perry, WA4MP · #146176 ·
Re: Solder pot for toroid leads
?Roy, This is very similar to the one I built from an old modified Radio Shack 110 v heated solder sucker years ago. It works. Here's the pictures. Dave K8WPE
By David Wilcox K8WPE · #146175 ·
Re: RF Amp using the now cheap GaN-FET's
Jerry, What is the difference between a modern wall wart and a class D TX?? No rectifiers, filter is LPF suitable for the band and antenna matching. Oh and stable? frequency source. The hard core
By ajparent1/kb1gmx · #146174 ·
Re: Introducing QMX CARROT
Now the QMX Carrot has successfully completed its second SOTA/POTA activation. And my KX2, remaining in the backpack, is getting jealous. But I almost missed a Summit to Summit due to SWR protection,
By Chris · #146173 ·
Re: RF Amp using the now cheap GaN-FET's
No I rarely do am.? ?I did build a retro-75 (SWL circa 2010) that was class E. While trying to may the uSDR work I found the TX made a fair AM tx (modulate the DC to the finals). The large size
By ajparent1/kb1gmx · #146171 ·
Region 1 Field Day
The Whitsunday Weekend is the Region 1 CW field day. Get your QRP Labs rig out into the field and have fun. https://www.darc.de/der-club/referate/conteste/iaru-region-1-fieldday/en/ My QMX plus will
By Martin DK3UW · #146170 ·
Re: QMX Plus in contest
you are in my log your Nr. 557? Roelof. I had no rate of 40 but some over 30 but the high bands were painful. I ended up with 700 QSO's. Mixed QMX and Flex 1500. QSK is perfect on the QMX+ and
By Martin DK3UW · #146169 ·
Re: RF Amp using the now cheap GaN-FET's
Allison, Have you documented your AM +PWM scheme anywhere? I¡¯m sitting here with a pair of 813¡¯s in parallel wondering what to do next. John WA6YSY
By John, WA6YSY · #146168 ·
Re: QCX Challenge
Well Jorma was there at 7 pm as well and we had a QSO on 20 m andlater 40 m plus Richard G4PCE? So 2 QMX? plus 2 other QSO's Condx not good on 15 m. No RBN at all Igor at least you were at the beach
By Martin DK3UW · #146167 ·
yellow t37 torroids #qcx
Hi probably a silly question but which bag do the yellow t37 torroids live ? i have 2 qcx+ kits and i have both red torroids in both kits but no yellow . thanks nic
By ng433@... · #146166 ·
Re: RF Amp using the now cheap GaN-FET's
Sounds like you need to add a Heising Modulator! Jean Shepherd K2ORS (SK) and the Heising Modulator: https://www.youtube.com/watch?v=oTg2BQR5eag&pp=ygUeamVhbiBzaGVwYXJkIGhlaXNpbmcgbW9kdWxhdG9y (
By Donald S Brant Jr · #146165 ·
Re: Release of version 2.0 of ABS solution for QMX+ (Automatic internal antenna tuner, internal battery and internal speaker with audio amp) #PSU #QMXplus #audio #ABS #ATU
Please also include me in the US group buy. Thanks, Jon K6WV
By Jon Kelley · #146164 ·
Re: QMX died before i got a chance to transmit.
Tested at 7.5 volts limited to 250 mA, no current draw plugged in. upon pressing the left encoder in maximum current draw at 250 mA upon releasing left encoder, no current draw.
By Teddy · #146163 ·
Re: RF Amp using the now cheap GaN-FET's
Allison, Been looking at what the AM guys are up to as you may have noticed by the links given in my previous posts. That's exactly what we need for polar SSB, an efficient switch mode RF amp plus a
By Jerry Gaffke · #146162 ·
Re: 3 cell lipo battery, how to use it anyway
Gerry. ?Yes agree all that Alison. ?Sorry that doesn¡¯t tie up with my experience on series cell battery systems with Smart BMS¡¯s ?(which is now most systems and most BMS¡¯s.) They are
By Bruce Akhurst · #146161 ·