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I will be sure to check out the analyzer when it comes out. By the time you guys get this bit of code organized where I can just copy and paste it in, I should be done putting mine in an enclosure. A

Well, conventionally PSK31 uses upper-sideband. If you've got an SI5351-based BitX, it's a fairly simple matter to change sidebands. I've forgotten what sideband is typically used for RTTY. This

Well, that's what I was afraid of. It is like trying to make milk from chalk and water, you're going to need a lot more than what you got. In other words, it's impractical.? I would need proper

If you inject a 700Hz carrier into the mixer, you will produce two mixes + and - of the carrier. The xtal filter removes one and what is left is a pure carrier. not MCW as I know it. If the carrier

Jerry, That was me on R104. No idea on 100 ohms emitter of Q13. I propose to parallel on Q13. I tried to blow the transistor Q13 with my main rig on 40M but BITX on a wire.. did not blow. The double

John: I have an article coming out in QST on an Arduino antenna analyzer. The bad news is that I don't know when it will be printed; only that it will be "by Feb next year". That said, it's built on

I would suggest Roy and others to try out shielding tape . This is from aliexpress and appears very cheap and just sticks.

Kent, I posted this a couple weeks ago. There is another version of the code around that has this error fixed,. Randy, K7AGE I am using IDE version 1.6.12. BITX40 code from -

What changes are required to the sketch to use the current version? I was unable to locate version 1.0.2 v/r Fred W4JLE Sent: Tuesday, February 21, 2017 11:34 To: [email protected] Subject: Re:

To reinforce what Jerry is saying, pin names 0 and 1 on the Nano are used to communicate with the PC via the Serial object, so it's best to leave them as is if you expect to do any debugging. Pin 2

Whoops, had a copy-and-paste error. ?That first line should be: ? ?pinMode(4, OUTPUT); Also, while that first line is typically in the ?setup() ?routine, the other three lines could be most

Looks great Roy, what speaker/size are you using? David KG7WFM wrote:

Allison's comments are probably worth chasing a little further. ?Here's a summary of her points, and my comments: 1) ?Diode ring injection level should be higher for the 1n4148's Likely true. ?An

John Smith, Regarding noTone() Pin 6 is used in the Raduino sketch for "CW_TONE", Ashhar has it set up to send out a sidetone. ?Probably best to let pin 6 be, pin 4 is free though, it gets defined as

Modulated CW (MCW) originally was a AM tone. So you had carrier plus both side-bands. Receivable on ordinary am receiver.

A pure sine wave into the mic of an ideal SSB transceiver would transmit a clean AIA CW signal. ?In the real world, that sine wave will be distorted, and the carrier not fully suppressed. ?But it

http://m.banggood.com/Electronic-Plastic-Shell-Cartridge-Handle-Project-Case-Desk-Instrument-200x175x70mm-p-1035473.html?rmmds=search I had ordered a couple of the Banggood cases and finally got to

Aside from attempts to use the BitX for what I would call "true CW," i.e., "A1A" mode in which the carrier is directly keyed (with or without shaping) and having a "necessary" bandwidth of only a few

That's shipped out of California. If you have more weeks than you do dollars, there's cheaper.

Good grief...$4.50! Unbelievable how cheap things like this are. The Teensy 3.6 is another one: 1Mb of flash, 256K SRAM, and a 180MHz clock for under $30...amazing! Jack, W8TEE To: [email protected]