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There are lots of small audio amplifier boards from China on ebay tht you could use just to drive an internal speaker. Here is one example

I don't have much experience around RF design. So take my opinion with a large grain of salt. But here goes anyways. On 15 meters, the spur is only 3mhz away:? 45mhz-21mhz= 24mhz That's a fairly of

My micro Bitx arrived yesterday!? I'm checking to see if it has the new discreet transistor audio amp now.? I want to have some small onboard speaker in whatever box I plan that will work whenever

I put one of my Rigol spectrum analyzers on my uBITx this weekend before traveling and i can report pretty much the same as everyone else has seen. ?Im particularly interested in the performance on

matjaz 1. Make sure that the firmware is registered as xxx20I.hex file 2.Check the SDA, SCL 3.The address of I2C must be set in uBITX Manager. All I2C devices have unique addresses. Usually the LCD is

I have a uBitx Rev 3 for sale in San Antonio, TX. Purchased in April 2018. With socketed 2822 audio chip. In original package, only opened to ensure no damage. I just haven't had time to get to it,

I have 2 4x20 i2c displays from 2 different manufacturers and they have different addresses. One is 03F ? and the other is 0x27 ?and they work fine. Make sure the firmware is set up for i2c and once

I'm not worried. HFSignals is selling thousands of boards and is watching their supply chain closely. There are alternatives, such as building a filter from crystals, building a sharp LC filter, going

The good news is there are enough control signals to select either 2 or 4 band filters. Where to put them and also add gain to make up for insertion loss are issues. If only one band its easy.? The

Like I said, I don't know anything about a Mac, but it appears that you have multiple copies of the project. I'll tell you how I have my code laid out, and maybe you can do something similar on the

You 'picked it up', eh?? Well on a hot double date in my '48 Chevy I drove off with one accidently! No damage done.? Don't recall watching the movie! ?

The newer factory firmware downloads contain CAT and it works well. Tom AB7WT

You may want to check this out: gitbucket as an alternative <http://github.com/gitbucket> Ron W7HD

Hello, finally have 20x4 lcd I2C and conect SDA on D4, SCL on D5 working with UBITX_CEC_V1.08I but not working. If try with 20x4 paralel conect like on original uBITX and UBITX_CEC_V1.08P working fine

The Bitx40 Raduino used to use 2 connectors with wiring harnesses. The uBITx uses a connector and a row of pins. The pins eliminate the need for the signal wire harness. Otherwise, it is basically the

Thank you for the information - Is the 45 Mhz IF filter (or any of it's variants that could work, including SMD) considered current factory production? Everything else in ubitx seems to be

This is a topic that comes up fairly regularly.? When you get it all figured out it would be helpful to others if you added a wiki page. -- www.bitxmap.com ( http://www.bitxmap.com )

Yes, I have realized that. I have asked a local amateur and he told me that about 100 km from here there is a skilled ham with all the equipment needed. Hopefully he will be of help. I will let you

Yes that is true but we must not forget that Bitx and uBitx are affordable for a beginner amateur radio and that adding a lot of additional features will confuse more than one if the price was a lot