开云体育

Arduino Nano w/ ATmega168?

I'd like to see some sort of RF probe built into the main board of the Bitx40 on any new PCB rev. ?At least pads and traces laid out for it, to optionally be stuffed with parts obtained by the user.

Hi Don, In addition to the other very valuable insights and suggestions you've received, for the specific problem of the carrier behaving as an "AM transmitter", I'd suggest you check the balanced

Very weird. ?I uploaded a couple files a few days ago, was easy enough. ?Now I can't. ?Can still create a new folder just fine. ?Did some sort of "UploadFile" button disappear from the groups.io

LOL!? I'm with you Roy!? I thought it was ridiculous too!? Heck, I didn't even want to pay for Chinese ones, so I tried crimping them with needle nose pliers first (instructions are out on the net

There was a long discussion of the Si570 and possibly moving to the Si5351 on the minima mailing list a few years ago. ?Much of it still pertains, including discussion of holding the divide ratio

I bought both. Excellent for a beginner like me. Art. N2AJO Sent from my iPhone

Hi Farhan, thanks for the update. Herewith is the new schematic. 73Gian, I7SWX

I just bought this RF probe: http://qrpguys.apps-1and1.com/wp-content/uploads/2016/11/probe_assy_111916.pdf as it has a readout but isn't tied to a DMM. Jack, W8TEE To: [email protected] Sent:

Thanks for the kind words...they are appreciated! Jack, W8TEE To: [email protected] Sent: Wednesday, February 1, 2017 11:22 AM Subject: Re: [BITX20] Jack's Books W8TEE I bought the first, need to get

RF Probe circuits and RF Field Strength circuits.? DIY build your own N5ESE Ballpoint Pen RF Probe for cheap.?? Prefer a Sharpie RF Probe, yes we have that one, too.? All 3 circuits complement

After trying and wasting money on other crimps and dies I wish I spend the 50 the first time. They're still a long shot cheaper then OEM molex crimps. If you feel you'll need them again for future

I bought the first, need to get the second.... Great resources, imho. Marco - KG5PRT

Hi Jack supports this group with his many postings and software insights. I just bought a couple of Jack's books. Hope to learn more about the Arduino C environment and some amateur radio examples.

Hi Sarma! The load current is way lower, about 0.15A (what the current draw on the +5V line is). That results in a power dissipation of 1.25 to max 1.35W. TO-220 package has a thermal resistance

This is a genuine question and not sarcasm, is 50 bucks a good price for a simple hand crimper? I was shocked when I saw the price. Roy WA0YMH

This would be a good place to start. http://golddredgervideo.com/kc0wox/bitx20a.htm ( http://golddredgervideo.com/kc0wox/bitx20a.htm ) Leonard

HA!?As it turns out, QST has accepted my AA article for publication...don't know when that will be, but they said "in 2017". As you know, there is an assembly manual for the AA and we will be selling

Hey jack, got a any more info on that antenna analyzer? I need to give back the one i borrowed! lol

That's what I ALWAYS do apart from fixing then to the case or a heatsink. Regards Lawrence