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http://www.hamskey.com/2018/01/how-to-upgrade-ubitx-firmware.html?m=1 This may help.. 73,? Kelly K5AID

Yes, they are very useful! I have one and recommend? the addition to any workshop.

Try http://www.hamskey.com/2019/02/release-cec-firmware-v1121-for-ubitx-v5.html Bill K9JUI

Here is an interesting link to a mosfet reverse polarity protection circuit. I found this mentioned in a post on this group from about a year

Bill, I am leaning that way now... I noticed? the raduino has the mini usb connector. Time to go scrounge up a cable, and get to work. I'm going to load the fw for stock display? then try the

Can anyone send me the right link for the new ver 5 kd8cec new system thanks in advance I have tried 3 different and they all fail Don W0DJK

Once you upgrade to kd8cdc software your tuning will be much better. I would just upgrade now as the calibration is so much better on the CDC code.

In the old Kenwood days, it was not likely that an amateur radio operator would be able to duplicate the boards. That’s no longer the case. I’ve had to figure out a few different connections in

Sorry to hear about your uBitx board.? I have used these testers: https://www.eetimes.com/author.asp?section_id=30&doc_id=1329331# ( https://www.eetimes.com/author.asp?section_id=30&doc_id=1329331

In this day and age, that would be somewhat like demanding he give up corporate intelligence knowledge. Layout is a valuable commodity.

Just a warning to any hams selling batteries at swaps. Please don’t put red price stickers next to the negative battery pole...... Don’t ask me why. I now check all batteries I might buy when I

Ah, thanks for that info Evan. I'll upgrade the polyswitch. I have them from 50mA to 8Amps here in stock. Still, I've not got my board going correctly. It is distorted and deaf so I think a mixer is

Since it is 1 amp, I assume that it is only protecting the board, and not the PA.? When on 80 meters, my v4 and v5 boards will draw 2+ amps total.? That would be close to the trip point of the poly

That is why I used a polyswitch. It is a resettable fuse :) https://www.mouser.com/ProductDetail/Littelfuse/RXEF110?qs=hv6pn79dJPSCD61RjaQM8g%3D%3D

I don't remember, Farhan has ever released board layout or its photo Sarma vu3zmv [email protected] wrote:

I would agree, as I too had a reverse polarity issue.? For me it was a left over HP power brick; HP has for some reason reverse polarity on the barrel connectors.? I forgot this and plugged it in.?

Oh, Raj, you were right about the red wire..? Thanks! Kelly K5AID

Well after a few hours of teardown and reassembly, I salvaged the encoder and the board. It tunes flaky, tends to jump around, very sensitive tune rate....I also was able to hear wwv on 5 mhz. It does

Hi, Mike. Thanks for reaching out.? I'll check out that YouTube tutorial; it's possible that I've seen it though a silent demo doesn't always reach me. I want to know why we're doing one thing

It sounds like a good idea would be to buy a spare Arduino to play with. I have a couple so I have a going one, and one to fool with. That is, I could play around with it before I hooked my uBitx V5