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I bought one Chinese antenna tuner and soon found out that I could not install the variable capacitors and their knobs. But in my collection of an cient radio parts I found suitable ersatz.? So I

Greetings all, I've no wish to stir up the debate about which supply voltage QDXs should be built for, but in reading the manual, I saw where it says that the power slider in WSJT-X has no effect on

I am not sure I understand what you are reporting.? When you say the VSWR meter doesn't budge, do you mean when in setting the forward power mode? It also helps to know the firmware installed on the

That's not USB over Ethernet, it's USB over TIA-568 (CAT-{5,6,7}) _cable_ 73, Willie N1JBJ

I have the QDX from last December (rev 2 I think?).? Somehow I managed to show up on PSK reporter for the nearest monitoring stations on my first try, but nobody was responding to my CQ or

Tim, Your doing great. When I built my 50w amp I needed help with the troubleshooting before initial startup. Mistakes are expensive both in terms of time and replacement parts. I found a great

There have been two major component changes in the QDX over the course of its availability that may affect its power consumption. The first is the synthesizer chip. Version 1 used the Si5351A from

I believe the early version of QDX used a different chip. When it became unavailable because of world wide shortages, Hans had to change to a higher current substitute. The QDX today draws about 140ma

Looks like there are USB-over-ethernet devices that do this: https://www.amazon.com/AV-Access-Extender-Operating-Synchronously/dp/B01EV33R8S/ref=sr_1_4 You could add Wifi on both sides but that starts

Hi Chris, Am 09.08.22 um 00:26 schrieb crichmon via groups.io: Nah, not really. I thought, it be the kind of gimmick we techno-nerds like, but anyhow, I had some fun fiddling with the undocumented

The QDX requires a specific "driver(s)".? There just isn't any direct Bluetooth interface (that I know of) with this kind of driver option In order to avoid a driver, you would need to directly

Thanks Hans, not when VNCing to a headless Raspi. :(. Tried it via a direct connection to a laptop and it does as you say. Guess I will have to find how to do ‘sticky keys’ via VNC link :). 73 Ken

Don't confuse the DC input with the power dissipated in the finals. Power goes elsewhere, and (hopefully) a large fraction of that power goes out to the antenna (and does not come back). 73, Willie

Strangely enough, just ran across this picture of my Decwriter II (300 baud! 30 characters per second!) that was hooked up to my S-100 machine running CP/M. Had one in high school that was a _serious_

Hi all, The outcome of my tests with the QDX connected to the 50W class C PA (for FT-8) is as follows: - QDX with T1 3:2, operated at +10V DC - 50W PA operated at +18V DC - direct BNC 50 Ohm

HP stuff was always my favourite. They seemed to have a habit of collecting around my workbench. At least the boss always knew where to come if he needed one ;-) -- - 73 de Andy -

Hello all, I'm curious about the general consensus for setting receive audio levels on the QDX. I've been using WSJT-X mainly in FT8 and FT4 with an occasional check in WSPR. I like the fact that QDX

One key point to remember is that the manufacturers spec sheet doesn't quite tell the truth in reality because to save their butts they deliberately underspec the ratings. I can prove that by saying

Oh dear... seeing VT220 mentioned took me down the nostalgia terminals trip... ASR33 on a DEC-10 at university ADM3A on Prime750 at university. ( 32bit supermini similar to a VAX 11/750 but completely

Hello Ken It's like a Morse key. The transmission stays on only while you hold the key down. 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl wrote: