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I’m actually amazed that you are doing as well as you are. There is a concept called “aperture”that relates to the volume of space from which a given antenna extracts signal If you have more

Simran For receive try stretching out 8m or more of wire. The ubitx was optimized? for full sized antennas, but 8m or more should bring some signals. Patiently learn about ham radio antennas. To

Hi Tom, Are you familiar with the Youtube channel "Applied Science"? The engineer who runs it has some interesting videos: "Shooting an electron beam through air" https://youtu.be/m3oonk1wnHY He

You might look at the SOTABeams web site.? They often use an EFHW. Gerry Sent by the Thunderbird

https://www.instructables.com/air-variable-capacitor-from-scrap-aluminum-sheets/ https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.qsl.net%2Fvu2nil%2Fprojects%2F20210%2F20210.html&psig=AOvVaw0Mhp

Hello Arv thanks for the reply. I will certainly try to first procure the caps and build aswell once the setup is done with formally mfg caps. There is this group on FaceBook called as Minimalist

Simran You can make your own variable capacitor from insulators and conductors. Formulas are available for calculating the amount of capacitance from size of plates and dielectric constant of the

I just got handed (about 5 hours ago)? a goodly length (about 7.3 meters) of 50 millimeter Heliax.? It's a bit big for a transmission line for the uBITX (LOL), but I also have a 5-500 pf 5Kv

Hello Will, thanks for the reply. The loop that I made was by taking a string...hooking it to one of the leg of a chair... measuring 1Meter length and exactly placing a marker pen at the end of 1

Hi Simran! :-) I have used loop antennas in the past, and if they aren't tuned well, they can be almost deaf.? If you can, try to get a tuning capacitor for the loop as soon as you can, which will

Hi, I am able to rx a few stations locally Got to hear someone speaking from about 1400km away on 20 Meters. However, the issue is the signals that I get are pretty weak. I am using a homemade 1meter

Scratch building of the early version described in this group was encouraged: /g/HBTE/messages?expanded=1 Just search for "tinysa". It has since moved to production with significant

Make sure the backlight is at 100%.? A PWM signal controls the brightness and I get noise on mine when at anything other than 100% -- Dennis WC8C

I saw an article a little while back. The article was a comprehensive list of reference sites, articles, books and data that you should clone onto a Raspberry Pi and place in a sealed metal box, so if

The Antuino is a very capable spectrum analyser. It has a few known limitations but you can scratch build it for less than 50 dollars and a few evenings. wrote:

Sorry, the TinySA is not open source. John

Bob - It was a fun board to build.? I sent you a message. 73, Justin B. KI5GKD

i also can only see good on one eye ... a good headband loupe and some practice and i can also solder smd parts dependingh on silkscreen and pcb design they nearly float to the right position (when

Hello ! try ferrite ring on the Nextion's power supply line. And shield the back of the screen with PCB, works well.

I use an unenhanced Nextion 5inch display with its own LM7805 supply. There is a high pitched whine that I don’t hear on my other ubitx that has a 3.2 inch Nextion. Both running CEC firmware. Tried