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Hey Curt, So I got the amp assembled but without a filter. Tests look good into a dummy load. On a antenna for just a brief keyup my turner couldn’t keep the swr low at all. It kept tuning. Any

Hey Curt, I’m feeding the ubitx with a cheap lab bench power supply. It’s intended more for electronics hobbyists than for ham radio, so it’s entirely possible that it is not a clean power

So once again I made some progress. I have not located the exact cause of the end of the transmission yet, but I am sure the problem lies within the fake AM mode of the uBITX: So, i used my USB to

Hi! I highly recommend doing it using a sound card microphone input. That way you can adjust the passband using something like fldigi to monitor the noise floor in the passband. -adrian

Hello, thank you all for your excellent replies: I'm going to make the BFO calibration procedure, and listening by myself on my good old DEGEN 1103 chines receiver. And yes, I was surprised at first

Jon maybe I should have asked what kind of power supply you are using -- a battery or something 'intended' for ham radio use?? a PC type power supply might garble things pretty well (it depends). the

I got the single chip 80w/100w (depending on voltage) version on Aliexpress.

it is your BFO calibration.? There is a you tube to watch73 kd5yyk

I had downloaded Flrig from the W1HKJ site, version 1.3.44, when I was trying to use it. I've deleted it from the computer now as it did not work. Is anyone else using Flrig? =Vic=

Hi, Good things come to procrastinators... This KV4QB site has a lot of interesting Ham related microprocessor projects. Including adding a TFT display to a uBitx. And a cool simulated analog meter

Hi Vince, Wayne... It's based on work done by DuWayne KV4QB - http://kv4qb.blogspot.com/search?q=power+dummy I have a few spare boards if you are interested... / Gerry

I bought one of these signal generators (FY6600) about a year ago. It can do everything I require for HF and is accurate enough for my needs. It has a lot more functions than I expect I will ever use

You may like to hear your modulation yourself with another receiver. You transmit into a dummy load and you receive without any antenna. I have ver. 3 and has no basses, say lower than 500hz.

Hey Curt, This past weekend, I was able to receive some distant phone and CW signals with none of the garbling that I heard this evening. Unfortunately, this evening, everything sounded garbled to me,

Sounds quite cool to me! 3 blocks is dreadfully close. How do more distant signals sound? Receivers do overload when signals are huge. Possibly also your ubitx may need the bfo adjusted. See my most

I've recently built a ubitx and hooked it up to a GR5V antenna that I borrowed from a member of my local radio club. This evening, I was working with a friend of mine who lives three blocks away to

The one looks to be the amplifier and filter module to me. Matthew Pitts N8OHU -- Sent from my Android device with K-9 Mail. Please excuse my brevity.

newoldham wrote : "It's a 20m Dipole, not well-tuned!" Using any antenna tuned to an HF ham band helps to mitigate against the "invasion" of interference from nearby AM broadcast band signals. So with

Thanks Curt. Okay that’s the filter I was going to get as well. I also saw the blog where the blog suggested to increase bias voltage. I am also waiting for a similar sized heatsink too, next will

I took a look at it.? Simple, straight-forward, and most of the features I consider critical - you can do a lot with that.? If the battery test puts a small load on the battery while testing, that's