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I have no power out, yet the oscillator is working as I hear it on my DX10 when the DX10 is not connected to an ant.? I ran hardware diagnostics on the rf filters.? They were pretty much a strange

Hi Folks.? I just want to pass along my AGC settings.? They are somewhat based on what others have posted plus some of my own tweaks. I have not spent much time on the noise filter parameter as the

I have seen quite a few a few posts on sensitivity on the High Band QMX, but I am not too sure what to do if it isn't up to snuff...My Low Band QMX sensitivity is about -107 to -109 dbm at the antenna

Steve, My Progrock2 initially ran very hot. I was able to connect via PC to the microUSB port and set the frequency, but at high frequencies (above 135MHz) the output becomes unstable/noisy and gives

The QMX firmware version1_00_015 and up implement the CAT command TM for get/set of real time clock. I created a small powershell script for windows to set the time (see

Good morning (In the States) Hans! I used a little 'Burt' force, and by alternating screws from each side and opposing corners i got it together with a good fit.? Thanks, I was afraid to put too

I have had it happen before with other extruded aluminum boxes where the fit between the two halves is not perfect. I use a pair of smooth-jawed pliers to give a very (slight) bend in or outwards on

Hello Burt Series they're slightly off and require a lot of force but I can't recall having seen an enclosure which wouldn't snap together given enough brute force. But if you need me to send you a

Got through the build, added the firmware, booted up the rig.? Now to fit the case on!? This has turned into the most difficult part of the build.? The tongue and grove are off by a very small

Generally... video/RF amplifiers are measured the same. Power output (undistorted and t 1db comprssion) Power gain (also votlage gain) Distortion IMD, IP3, harmonics Noise, noise figure of the

Yes, I did.? Perhaps my surmise above was incorrect. As I said before, I'm reluctant to butcher the radio when it operates perfectly well on 20m through 12m so far as power out is concerned -- and I

William, I count 20 turns on both of the toroid pictures.? The difference is on the 14th turn.? I count 15 turns to what should be the 14th turn and then only 2 turns between 17 and 20 on the

Evan, Thank you for your reply. I went back to carefully review my work as well as LY2H's video covering this subject.. https://www.youtube.com/watch?v=X_Oz8N7yu2g&ab_channel=LY2HHamRadioVan After

Borrowed a tinySA Ultra and a 40dB attenuator from a friend today, and got good results using that and 10dB of attenuation inside the tinySA.? All harmonics in the radio's output are in compliance

thanks will do! as twisted as it sounds,? I am looking forward to trouble shooting this as my trouble shooting abilities are not what they used to be.? It will be great to exercise them again after

Unless you have a specific reason to turn on the LNA, leave it off.? It will reduce the upper limit of the dynamic range of your instrument at the same time that it increases sensitivity.? Always

That is approximately -25dBm total power into the tinySA mixer ; and gain/loss before the mixer, whether internal or external, will need to be accounted for.? -25dBm is not a hard and fast number and

Yes he does. You clearly didn't bother reading his non US callsign which is quite clearly written at the end of his post. HINT - next time try reading the UK regs instead, there are no

The Backlight only need '12v' power applied to come on. Most of the set runs on 5v via a regulator - but not the final few Audio OP amps which will generate some hiss.. Perhaps you ruined the first

Next you should probably check for continuity on all pins between IC2 and the LCD. Those are : IC2 LCD 2 11 3 12 4 13 5 14 6 6 27