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I experience a delay between dots and dashes except at very low speeds which makes keying somehow erratic. Any cure for this? (Voltages for dots and dashes are correct). Thanks, 73 I4awx Luigi

Great idea! Seeing others experiment with ?C's in projects is terrific! Jack, W8TEE

I'm working on assembling/integrating the uBitX into this enclosure. I've searched with Dr Google but can only find a video that describes assembly and interconnect of the various sub boards that come

Another path to take, if you already have a 50 ohm dummy load, is to use that instead.? You *will* need to calibrate the system in that case. I am working on a version of the DDL using a SparkFun,

I use a indelible marker to color the leads. You can use an inductance meter to check, the higher one will be 3T .. Raj

Hello from the rapidly warming and drying out downunder. I have got as far as winding the transformers and installing them. My method for remembering which was the three turn and which was the two

Mouser has 2,837 of the 1k 3W Xicon in stock, item number 283-1.0K-RC They don't really have to be 1k, there are plenty of other choices. For example, get the same part at 1.2 k, item 283-1.2K-RC and

All: A number of you have written me privately saying you're having trouble finding the 1K 3W resistors for the dummy load project (Nov., 2018, QST). If you don't have access to QST, you can download

I'm replying to an old post, much of it was about SD cards with the Nextion displays (for those that use email, not the web).? I got a 4.3" Nextion Enhanced display for a non-bitx project and tried

Having built a few already RTFM is valid.? It is compact so take time and check everything. Allison

Thanks for telling me about the DX contest and that 15 was opened. Just got D4C , MonteVerde , which seems to be off the coast of Africa, an Island ? 5 watts, uBITX !? 80 meter loop with an antenna

Thanks. I will try that. Im not 80 yet, just 76, but eyes and shakes etc seem 100. Sent from Mail for Windows 10 Sent: Saturday, October 27, 2018 11:46 AM To: [email protected] Subject: Re: [BITX20]

Chinese on-line retailers sell electrets with external amplifier on a 15x20mm board complete with separate 5 pin header.? This unit seem to be very effective for BITX radios.? Past week? I received

Thanks for posting that, something to listen to. 1000 watt ubitx all band. LOL

Yes, I'd say its the soldering that's pretty much the only challenge. I have one friend whos in his 80s and he is challenged by soldering now. Couple of things, 1 is shaking. The way to be successful

https://soldersmoke.blogspot.com/2018/10/soldersmoke-podcast-207-15-mtrs-60-mtrs.html

I have just used Allan'sdownload file V1.92-3.5 for tft loading to micro SD card. All looks well but there is not any sound. I wonder as this is a work in progress if this an unresolved problem or

Ruarto Recognize that much of the assembly is soldering wires. First take some time having fun to identify the version, and how it goes together. The ubitx has a prominent set of 4 relays, compare

I have been lurking and trying to follow these treads and am getting real nervous. I am elderly and not that proficient of a electronic tech, don’t have oscilloscopes, etc. I was told it was ready

This tells me that there is a fault BEFORE the first mixer. High probability is a shorted trifilar transformer. I found one such case by rocking the toroid and there was a jump in SSB power. Check the