开云体育

I have for sale a few kits from my radio desk that just don't get used. *50w QRP-Labs Amp 40m* : Built and tested by me with added 24v fan. I will also include a hand PTT that plug's into the amp and

If you are using Firefox with add on noscript then give full permission to gropus.io and repeat and save your setting. No script messes up some things on my desktop. Raj

Worth trying, but the NEO-7M is very cheap and does not give a clean square wave. Any corrections in edge count to better agree with the satellite will disturb that square wave. In the discussion I

The December issue of QST has an interesting article about using an Arduino in a simple transmitter (Page 30). It is hardly as sophisticated as the use of the technology here but it may be of interest

It could be something as simple as a bad connection somewhere nearby that acts as a mixer for other frequencies and then gets re-transmitted. Finding it and getting it repaired is not going to be

So it is worth trying to connect the NEO-7M GPS module (48MHz divided by 4) to the Si5351A and see what happens, as it is already there in the Raduino. Hopefully it will be good enough to provide a

Here's an interesting note regarding a 10mhz reference output from a cheap NEO-7M GPS module: /g/HBTE/topic/69599658#699 ##### It is worth noting that the module only produces a

Hi Jerry, That makes total sense. I have some affordable GPSDO with 10MHz output I got from ebay. I feel your suggestion might be the best solution, of course, at the cost of re-doing the Raduino and

Thanks Tom, that is a good idea! Rafael PU2UIT

Good approach. Except for overwhelming the front end, I don't sense 5G and cell tower being the major effects. But I am only aware that their RF is much higher than HF. My brief experience setting up

Just got this from my son. He also send some waterfall images but will not show them here. Here is what he reported: So I have a major RFI issue going on? I don’t believe there is a problem with

greencoloured, contact me at drc11113@... to talk about buying your set don

For sale is a fully assembled uBitX v6.1. It comes with the original parts kit and microphone included with the radio. I have installed the TSW Teensy 4.0 adapter kit. The radio works very nicely with

If you are sticking with the Si5351 family for this and are ok with laying out a new board, I'd use the $2 Si5351C in the QFN package.? It has a refclk input that can work with directly with the

Might be a round about way to do it. Depending on available pins. In the time that the Nano processor is not doing much, let the Nano read the 1 PPS pulses from a GPS to get a counter value that would

Every now-and-then I accidentally send one of these emails to my "Spam" folder. My emails STOP immediately after I get one saying my account is shut down until I re-activate it. Worth a try. Bob

This may help ... On groups.io, when you select no emails and save the changes, you then have to move to the very bottom of the page where you will find another save button which must also be pressed.

Evan, thanks. I went back to V3 and V4 and did not see any references to it. ?Although I was looking for power (CW adjusted fine and I adjusted to 10 watts) I did not think of spectral purity. ?It

Thanks Mick I will be looking for spectrum purity later this week. ?Too many irons in the fire right now. Stay safe -- Frank, KG9H

Skip hi and good day. ?Nice to hear from you. Yes I tried that for CW and it adjusted fine. ?I did not see a decrease in SSB though which prompted by question. Will look you up on QRZ. Stay safe. --