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It is all about your antenna and the activity on the band. No magic number.

Thank you Barb, thats a really good information that i need.

QRP (< 5W) is a challenge. hamspots.net and pskreporter.info both show lots of low SNR for your transmissions. Mike W9MDB

When working WSJT-X, what is the weakest incoming signal you expect to get a response from? I'm running a QDX and a QMX, each putting out 2-4 W depending on the band. I find that I rarely get a

Hello Don 700 / 1900 Hz, standard two tone frequencies. VFO on 7030 kHz (I know, CW segment nor SSB... It's only testing to the spectrum analyzer via 50 ohm attenuators). I'm using phase

When going from an aluminum housing as provided by QRP Labs to a 3D printed one, I suspect that, due to the poorer thermal conductivity of the plastic/air matrix, high temperature issues may arise

I usually have a draft 'project' on file with Mouser so it's ready to go when I need parts... I've not had any problem buying single quantity NP0/C0G caps from Mouser, but I usually put together a

Hans:? Brilliant work!? What tone frequencies are you using? The uneven IMs point to some AM->PM distortion. Has any predistortion been applied?? Is there code space to do so?? Plans to do

Because of the shipping cost being way more than the component cost I have a business account with Mouser and create 'BOMs' using Mouser's web page and just drop a single order to get a few dozen

Tonight's build of Hamlib will have set_clock and get_clock for the QMX (does not work for QCX or QDX according to their manuals). set_clock can take utc and local as arguments to set the current

James, You could use an LM-317 voltage regulator to knock-down the input voltage to any value you determine. It uses two external resistors in a voltage-divider circuit to set the output. They do

Try this one: https://www.mouser.com/ProductDetail/Newhaven-Display/NHD-C0216AZ-FSW-GBW?qs=Vb5qD4CGh4nMkt96QTe%2F8A%3D%3D&mgh=1&srsltid=AfmBOooMqu8IXYyVYSaEzpEAFZK5rW94Voq1ZMVKfPYjCfNL6Dfq5OjnE-o I

Hi Mike Yes there's a CAT command "TM" for get/set of the real time clock. I forget the format but it should be documented in the operating manual along with all the other CAT commands. 73 Hans

Andrew, ?Thanks. Yes, CW only. I should have stated that in the question.

Yes, find a smaller display and rotate it 90deg is the first step i will do. Creating enclosure with a new arrangement of components and 3d printing the next step.

Is there a CAT command to set the clock? I have added QRPLabs? to Hamlib already so can customize it if there are extra commands available. rigctl -l | find "QMX" ? 2052? QRPLabs? ? ? ? ? ?

Hello Mark Fixing the accuracy of the RTC is again something on my to-do list. The RTC runs from the 32.768 kHz crystal and like any uncompensated uncalibrated crystal they can be off. I will include

I'm using a QMX+ with the CR2032 installed and "QMX+ RTC" selected. The problem is with the accuracy of the clock when the unit isn't switched on. AFAICT, it's pretty accurate when the radio is

James, there are pros and cons for both. Searching through the forum you will find some discussion. I wish you success for your work and hope to read good news from you. 73, Ludwig

To be clear, it looks like Q507 is ok but I'm not sure because So Q507 maybe not ok or something around Q507 is wrong. If voltage at G and at S are the same, across a well working Q507 no current is