开云体育

Those of you that already have or are interested in our BITeensio (Teensy 3.6 MPU) card for the uBITX take a look at the "TSW" website, www.w0eb.com ( http://www.w0eb.com ) and you will see a preview

Thanks, Jerry.? That's what I was thinking. I probably need to build a little RF probe and follow the transmit path to find the problem.

I guess I'm old school. ?Or one reluctant to complain. If it's cheap and WORKS, DON'T 'FIX'IT! ? Period. If it's expensive and has problems, RETURN it. Period. If you like to modify it, have at it,

There's an awful lot of gain between Q90 and the IRF510's. If that trace between the relays for rx is not grounded during transmit, it will carry enough RF energy to create a really impressive

I will do this the next time I can get to our latest an greatest R&S FSWP in my QRL Henning Weddig DK5LV Am 23.08.2018 um 15:56 schrieb iz oos:

In transmit, the trace between K3 pin 14 and K1 pin 12 is disconnected from the antenna at K3 and connected to ground at K1.? What is the designer's intention for doing that?? Wouldn't disconnecting

David,? the web page has a wiki... Maybe the mods could harvest info and post there or borrow from mike at ubitx.net. Allison

Has anybody measured the actual phase noise of the uBitx?

I am looking for a ready built SI5351 board, with isolating transformers.

If you haven't installed a cap on the output of the DSP audio filter I suggest doing so. Without it I had a lot of strange things going on with my audio as I believe that there is DC voltage present

Sarma Thank you for the great suggestion. This design is not from me. It is the work of?Kees K5BCQ. I agree...... a very nice job and I look forward to testing it. Warren - WA8TOD

Hi Darren, VE3XLT Can you please make this correction to? CEC 1.097 Nextion screen for my basic 3.5" (tft) display? TA2FU Alper

On key down it should well over 2A.

Still working on this. Speaker and audio out jack are wired correctly. So's the pot. It's supposed to be 10K right? I have both a paddle and straight key jack wired up according to

Warren, Thanks for nice job. We never get these vertical type relays. The filter caps may be 3 for each section, so that the user could reach closer value of capacvcitor by a combination. regards

Allison: No, I have been around, just too busy to keep up with all the threads. I wish there was a “Status” page that could keep everybody posted on progress. Thanks, David A Posthuma, WD8PUO

The 12VDC side of K1 is successfully telling K3 what to do.? If K3 is not listening and is stuck in receive, then the transmit RF from the PA will dead end in K3 and the PA transistors will get

David, You must have missed the last three months.... and a pair of very long threads!? ;) To clean that up yes, band pass filters are the option or some very fancy combination of high pass and low

K1 talks to K3 for Rf path.? Look at the schematic. Allison

It's funny, I have been working on getting my Laserbeam set up. Yesterday I wired it up pretty much the same (minus the extra components as they were not mentioned in the set up for the LB) But I have