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The prescaler and especially the AD8703 stuffing options are admittedly a bit over the top. ?The audio and RF signal generators and the RF probe would likely cost pennies, it's all R's and C's and a

The balanced modulator of this design produces phased SSB output.?? To produce AM Carrier,? the balanced modulator needs to become unbalanced by application of? Audio AC to the audio port of the

The tuning clicks on my Raduino were eliminated with some DC filtering to the Raduino supply rail. ?From memory, a 10 0hm resistor in series with the Raduino supply and a 470uF cap to ground on the

Arduino Nano with ATmega 328 -- Ion VA3NOI

Hi I see that Adafruit sells the PA-09 crimper. If you watch either Adafruit's Ask An Engineer or Show and Tell shows, they will show a 10% discount code. These shows are live on YouTube, Show

Hi Jerry: Rolling these features into the BITX40 (hopefully) is unnecessary. That said, I think a (non-integrated) tool with these features would be useful for almost everyone; BITX40 or not.? I

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

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