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...unsubscribed from QRPLabs@groups.io
There is another possibility, that Groups.io unsubscribed you due to bouncing messages. If you login to Groups.io and go to the QRP LABS group page and click on the subscription link on the left you w
There is another possibility, that Groups.io unsubscribed you due to bouncing messages. If you login to Groups.io and go to the QRP LABS group page and click on the subscription link on the left you w
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Michael VE3WMB
· #90099
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Should I lower QCX power when using to send WSPR? If yes, how?
QRP Kits / Pacific antenna makes a stepped attenuator kit that sells for $25 and it will easily handle 5 watts in. http://www.qrpkits.com/attenuator.html I would reduce the supply voltage to the QDX t
QRP Kits / Pacific antenna makes a stepped attenuator kit that sells for $25 and it will easily handle 5 watts in. http://www.qrpkits.com/attenuator.html I would reduce the supply voltage to the QDX t
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Michael VE3WMB
· #89696
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QDX and new Chromebooks
The .deb files for JTDX are here : https://sourceforge.net/projects/jtdx/files/jtdx_2.2.159/Linux/16-bit_audio/ The comments are : Binary installers: -amd64_ub20.deb - installer for Ubuntu 20, -amd64_
The .deb files for JTDX are here : https://sourceforge.net/projects/jtdx/files/jtdx_2.2.159/Linux/16-bit_audio/ The comments are : Binary installers: -amd64_ub20.deb - installer for Ubuntu 20, -amd64_
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Michael VE3WMB
· #88563
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QDX and new Chromebooks
Jim : Well I would start by installing an application called "COG" from the Google Play Store. This will show you some detailed information about your Chromebook including storage, processor type etc.
Jim : Well I would start by installing an application called "COG" from the Google Play Store. This will show you some detailed information about your Chromebook including storage, processor type etc.
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Michael VE3WMB
· #88544
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QDX and new Chromebooks
Paul : On newer Chromebooks all you need to do is to enable the built-in Linux environment to run Linux apps alongside Chrome and Android apps. There is no need to use Crostini. The internal Linux is
Paul : On newer Chromebooks all you need to do is to enable the built-in Linux environment to run Linux apps alongside Chrome and Android apps. There is no need to use Crostini. The internal Linux is
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Michael VE3WMB
· #88512
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QDX caution
I agree with Peter on this. Also sometimes the shorter transmit cycle on FT4 (7.5 seconds) can work to your advantage when there is QSB. I have found that often the less crowded conditions on 20m FT4
I agree with Peter on this. Also sometimes the shorter transmit cycle on FT4 (7.5 seconds) can work to your advantage when there is QSB. I have found that often the less crowded conditions on 20m FT4
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Michael VE3WMB
· #86847
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12V to 9V Converter : QDX ?
I built my REV1 QDX for 12v operation and I have been running it at 12v with no issue. I had ta similar idea for a "poor man's voltage regulator" by stringing 3 or 4 rectifier diodes in series to drop
I built my REV1 QDX for 12v operation and I have been running it at 12v with no issue. I had ta similar idea for a "poor man's voltage regulator" by stringing 3 or 4 rectifier diodes in series to drop
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Michael VE3WMB
· #85723
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QDX V3 arrival and build
I forgot to add that if you decide that you need some additional USB ports for the Pi Zero, I found these cool little USB hubs that are designed to fit the Pi Zero and expand the USB to 4 type-A ports
I forgot to add that if you decide that you need some additional USB ports for the Pi Zero, I found these cool little USB hubs that are designed to fit the Pi Zero and expand the USB to 4 type-A ports
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Michael VE3WMB
· #85717
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QDX V3 arrival and build
Pete : Have you heard of the DigiPi ? http://craiger.org/digipi/ Rather than a full-blown Linux / Raspberry Pi OS distribution it is more of a Digimode Linux appliance using Pi Zero Hardware. It is st
Pete : Have you heard of the DigiPi ? http://craiger.org/digipi/ Rather than a full-blown Linux / Raspberry Pi OS distribution it is more of a Digimode Linux appliance using Pi Zero Hardware. It is st
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Michael VE3WMB
· #85715
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U4B I2C sensor question
Mitch : To answer you question, yes you have the ability to talk to external sensors with the U4B. QDOS Basic has I2CR and I2CR16 commands that read from a device attached to the I2C bus with either 8
Mitch : To answer you question, yes you have the ability to talk to external sensors with the U4B. QDOS Basic has I2CR and I2CR16 commands that read from a device attached to the I2C bus with either 8
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Michael VE3WMB
· #85424
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QDX and eliminating the laptop
Enabling Linux on Chrome OS : https://support.google.com/chromebook/answer/9145439?hl=en and a list of Chromebooks that support the native Linux (Beta) in Chrome OS. https://sites.google.com/a/chromiu
Enabling Linux on Chrome OS : https://support.google.com/chromebook/answer/9145439?hl=en and a list of Chromebooks that support the native Linux (Beta) in Chrome OS. https://sites.google.com/a/chromiu
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Michael VE3WMB
· #85165
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QDX and eliminating the laptop
If you have a newer Chromebook with an Intel architecture you don't even need to install GalliumOS. You can run native Linux (Debian) applications alongside Chrome and Android apps. There is a beta Li
If you have a newer Chromebook with an Intel architecture you don't even need to install GalliumOS. You can run native Linux (Debian) applications alongside Chrome and Android apps. There is a beta Li
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Michael VE3WMB
· #85143
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QDX T2 windings size
#transformer
#qdx
It just occurred to me that my twists were 360 degrees (i.e. a full revolution of the screwdriver used as a grip). If the intent was to do 180 degree twists (which might make sense) then I would ended
It just occurred to me that my twists were 360 degrees (i.e. a full revolution of the screwdriver used as a grip). If the intent was to do 180 degree twists (which might make sense) then I would ended
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Michael VE3WMB
· #84503
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QDX T2 windings size
#transformer
#qdx
I finally completed my REV 1 QDX yesterday and made my first QSO with it on FT8. My only build issue was with T2. I measured three 20cm lengths of wire for the trifilar winding and twisted them for 50
I finally completed my REV 1 QDX yesterday and made my first QSO with it on FT8. My only build issue was with T2. I measured three 20cm lengths of wire for the trifilar winding and twisted them for 50
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Michael VE3WMB
· #84468
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Question for fellow frequency pedantics U3S :)
#u3s
Mark : I suspect that few receive stations actually go through the soundcard calibration procedure so that is likly why you are seeing varying reported frequencies. Nothing to worry about, the importa
Mark : I suspect that few receive stations actually go through the soundcard calibration procedure so that is likly why you are seeing varying reported frequencies. Nothing to worry about, the importa
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Michael VE3WMB
· #81589
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OK to use Elecraft T1 with QCX-mini?
QRP Kits / Pacific Antennas used to sell a little kit (now retired) that was handy for this scenario. You could easily reproduce it from the schematic. (see link below). http://www.qrpkits.com/files/L
QRP Kits / Pacific Antennas used to sell a little kit (now retired) that was handy for this scenario. You could easily reproduce it from the schematic. (see link below). http://www.qrpkits.com/files/L
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Michael VE3WMB
· #74040
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QDX
My QDX + enclosure showed up on my doorstep this morning. I guess I never looked too closely at the dimensions, this thing is pocket-sized. I was expecting an enclosure of about 5 x 6 inches it is mor
My QDX + enclosure showed up on my doorstep this morning. I guess I never looked too closely at the dimensions, this thing is pocket-sized. I was expecting an enclosure of about 5 x 6 inches it is mor
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Michael VE3WMB
· #73927
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New kit: QDX - QRP Labs Digital Transceiver
I happily stand corrected ! I guess that the term MFSK by itself is misleading. Digging a little deeper, DominoEX definitely uses (IFSK) incremental shift keying so it will be fine. In fact just liste
I happily stand corrected ! I guess that the term MFSK by itself is misleading. Digging a little deeper, DominoEX definitely uses (IFSK) incremental shift keying so it will be fine. In fact just liste
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Michael VE3WMB
· #72593
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New kit: QDX - QRP Labs Digital Transceiver
Jim et al : The QDX is not an SSB transmitter. It is only compatible with modes that use sequential FSK (i.e. one tone at a time). This rules out any modes that use MFSK (i.e. MFSK16, DominoEx, Olivia
Jim et al : The QDX is not an SSB transmitter. It is only compatible with modes that use sequential FSK (i.e. one tone at a time). This rules out any modes that use MFSK (i.e. MFSK16, DominoEx, Olivia
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Michael VE3WMB
· #72531
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QDX FT8 frequencies?
I would also be game to try JS8 on the QDX. I have used the JS8Call application once on 6m and it looks promising. It gives you all of the benefits of the FT8 protocol but allows you to ragchew, albei
I would also be game to try JS8 on the QDX. I have used the JS8Call application once on 6m and it looks promising. It gives you all of the benefits of the FT8 protocol but allows you to ragchew, albei
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Michael VE3WMB
· #72529
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