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I don't do CW, will likely never to CW, so when I assembled my uBITX I didn't wire in the jack for the key, but I saw in the instructions you had to have a resistor there no matter what. Attached is a picture of how I did that.?I think I have this right, but I thought it was worth asking before I added this to the wiki.



Thanks,
Patrick W7PEA

Hello Patrick,

They called that wire blue on mine. Different folks have different color perceptions. I believe you have it wired right. Be sure to insulate that whole thing or Murphy will get you. If one end of that conglomeration accidentally gets grounded the rig will go into transmit - CW - and stay there. If the other end gets accidentally grounded you will pull your 5-volt supply to ground and - trouble! Ask me how I know that:) Some electrical tape and chewing gum (used) will work.

If you are not going to ever use the CW part of your radio maybe I can get you to send it to me <evil grin>. I will install it in a CB radio I converted to ten meters. Please be careful when you remove it from your radio so as to not ruin something nearby - like the upper sideband.

For those who didn't know and might be scratching their heads - OY! That last paragraph is *joke*. I know not everybody is completely familiar with English:)

73,

Bill KU8H

--
bark less - wag more

Patrick,
Since it is going to the Wiki:? As is,? it might be a little confusing.? What you see as green, I see as yellow... and it's a 4.7K ohm resistor on the wire up diagram.

Personal use:? If you don't use CW, why not strip out the CW code from the firmware and now you have more code space and an input to put to other uses?

Regards,
Gary

I did pretty much the same thing, works fine.? /g/BITX20/message/47629



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Thanks Bill for the validation and humor. ;-)

-p

Instead of omit the keyer, i use a switch to activate and use the CW as a constant carrier signal for antena tunning. It's easier than say Helooooooooooooooooooo!

73

David, CA3DPV

On Mon, Jul 9, 2018 at 11:11 am, Gary Anderson wrote:

Since it is going to the Wiki:? As is,? it might be a little confusing.? What you see as green, I see as yellow... and it's a 4.7K ohm resistor on the wire up diagram.

Thanks Gary!

I went back and forth if that was yellow or green. Even got out the desk magnifying light. Thanks for referencing the schematic for me I'll update the image before I put it on the wiki.

-W7PEA

Closing this out:?

Wiki Page is up:?/g/BITX20/wiki/No-CW-Jack-Mod

Feel free to make corrections or improvements to that page as you wish.
-W7PEA

The wire colors have the same order as the resistor color code: black, brown, red, orange, yellow, green, blue, violet.? You labeled the connector "Raduino," so the "R" is at the violet-wire end, and the "o" is at the black-wire end of the connector as shown in the photo.
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Jon Titus, KZ1G
Herriman, UT USA