Thanks. One of these days I'll get the power switch. I've just been waiting to place a bigger order. One other thing to watch out for is that some of the PCBs out there come with an expanded button he

For a case I used: https://www.mouser.com/ProductDetail/854-BOX3-1455L-BK and did my own bezel for the OLED display. I'm not too happy with the bezel yet. The display should be closer to the front of

Yeah, RTFM hasn't always been one of my strong points, sorry. On the good side, tuning the Si5351 to the BFO frequency and then adjusting the BFO for a max fixed frequency did seem to work, so far any

Reed, I had an interesting event last night. I did a reset all and power cycled the radio. The touch screen seemed mirrored/rotated/??? I ended up more or less randomly pressing spots until I got the

In addition to the FW issue, you have an I2C addressing problem. The 10-pin Si5351 has a fixed I2C address (0x60). You'll need a second Si5351 to have a different I2C address. Only the 20-pin QFN 'A c

Thanks everyone. My motivation was to make my calibration more quantitative than qualitative: get my ear out of the calibration procedure and replace it with lab equipment that I have more confidence

What should the CLK0 and CLK1 frequencies be? From what I read, CLK0 should be 11 MHz CLK1 should be 57 and 33 MHz for LSB and USB respectively. I connect my Agilent counter to CLK1 and am getting 33.

I haven't been able to get my ubitx 6.2 with Reed's FW working with WSJT-x v2.2.1, though it does work with FT-817 Commander. I haven't tried UBITX manager. I started setting up a serial protocol anal

That is in fact how I first characterized my attenuator when I built it. My test equipment is: VNA: Agilent E5071B SA: Agilent E4407B SigGen: HP 8648C Really, it's my company's R&D test lab equipment,

I did some baseline measurements on my new V6 running Reed's FW before I start changing too many things. The power's a good bit lower than expected and the third harmonics on both 15m and 30m are 4-5

I got a new v6 kit with the enclosure this past weekend. My daughter helped put it together. With the COVID-19 stuff going on, everyone's working from home and has staked out their territories leaving

I think I'll need to find some shielded inductors for this filter as recommended by Raj. I used the ones I mentioned previously. I also noticed that I had the function generator set up incorrectly to

Thanks Raj. I'll pick up some 51pF caps Monday. My local parts shop gets worried if they haven't seen me in a day or two... I'll try parts I have on hand first. Otherwise, it'll be time to put togethe

This is a V3 that has new relays and the L5/L7 fix and working on the LPF that I believe is before the mixer, but I'm not sure. I've been taking measurements at each step. So far not significant drops

Good point. Earlier in this thread it was recommended that I add a LPF to get rid of the spurs on 15, 12, and 10m. It was my understanding that the following (from Ashar I believe) is the one (though

I was about to dig into my parts bin searching for toroids and I remembered I had those left over. I'll probably have to order some 30 uH parts. 27 and 33 are easy to get locally, 30 maybe not. Sounds

Well, that didn't go well. Looking at it, the two toroids on the left are a little close. I have a layer of grounded copper foil between the PCB and the filter (insulated of course). I might rebuild t

I'm afraid it was already set to the half way mark. Is there something particular I should be looking for? At this point I'm having enough fun taking measurements and improving things as I go along. T

Thanks, I'll look into that. John W1JDS

I did post some CW data a few weeks back as I swapped out the relays and inductors. Some of the data is suspect given unexpectedly high power readings. If you can read an Excel file I can send the who