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Hello, I wanted to know what type of capacitor is most effective for a power decoupling. Basically, is a SMD capacitor as effective as a ceramic or something other? In addition, there is a calculation

And nevermind... I figured it out. In my haste to test the broadcast filter, I failed to unplug the uBitx from USB. I had turned off the rig and never turned the power back on. So evidently there's

I recently acquired a ubitx v6 used and in all my tinkering, I can't get the audio through the speaker to resemble anything intelligible.? The audio using headphones however is distinctly

oshpark also has a "qrp bitx tia" ...surface mount termination insensitive amplifier ... again from EMRFD and similar to the amps in the micro-bitx...nice gain block Jim

Scott, One thing you might need to consider is your 200 spots on PSK Reporter my only be from receiving stations that might not be transmitting. Skip Davis, NC9O

Set the volume controls so that with the antenna connected and a quiet or relatively quiet part of the band, the volume is loud but not clipping or distorted. Measure the AC audio level. Remove the

The ubitx is my only hf gear.? What would I need ideally to quantify background noise and can I approximate it without additional gear?

That should’ve been going from no antenna to your antenna. Didn’t catch that voice recognition error. Really important to have some measurement of your background noise.

How much local noise are you experiencing? inverters, solar panels, noisemakers, Power line noise? In the middle of the day when you listen in the lower half of the 20 m band you should hear lots and

Still having quite a bit of fun building/moving antennas and using the uBITX to learn about propagation. This has me confused however.? Here's what I believe are the relevant details; uBITX ver6 1/2

Mark Well if your ubitx requires it at your qth, by all means finish it. I suggest making a note to ID this toroid, then finish building it. If it works, well we don't? need to know how many turns

Hello, see here: [email protected] | Only noise when connected to the antenna (

Hello, I found the source of the problem. Parasitic oscillation due to improper decoupling of the power supply on the conversion part No1. Now I get it, but it’s still a little distorted. It makes

Hi Joe, I also hope you are well. I am also vaccinated with the first dose of Astra-Zeneca, now I have 5G coverage ... Ramón L.

I drew on the work of Chris Greening. THANK YOU CHRIS!. Ramón Lorenzo EA4GZI

Interesting, did not see that article before. Hope your doing well. With all the Covid stuff it sure has slowed everything down and taxing medical resources. But compared to many other provinces we

Ordered the BCB quite a while ago already, lost count when verifying the number of turns on my first toroid.? Haven't found the time to get back to it. I am such a slacker. -- Mark, kb9woo Milwaukee,

HI Ted, Thanks for the nice note. I had not previously seen W7MLH's modules. That's a terrific find and great for making compact builds.? For homebrew in particular I am a big believer in building in

There seems to be a parallel effort on esp walkie talkie by Chris Greening as reported on hackster recently. https://www.hackster.io/chris-greening/esp32-walkie-talkie Perhaps useful in your great

Great looking enclosure! ?? 73, Robert, AG6LK