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Very nice work John I have been thinking of doing something similar, I’ll be interested to see how your sketch works. I’m a Arduino hacker too it helps to understand how these things work. Skip

Thanks for the measurements Glenn. Have you connected your driver stages to the finals in the uBitx and re-measured, or are you going to duplicate the final stage outside of the unit, or replace the

I am very interested in the servo control code and components and wiring!? I would like to adapt that to handle a pair of servos for an az-el rotor for my satellite Arrow antenna, which only weighs

Help Mike, Great idea.? For my part I don't know if it's hard code developer or more mad hacker, but it is fun. Here is a picture of the latest addition, an L-Network ATU built in the uBitx case,

I download uBITX-master/uBITX_20/? here under are 9 files (ino) I click on uBITX_20.ino and the IDE start up. The IDE is then loaded with a big file............. When I start compile there are lot

In your .wine/dosdevices directory you will add a soft link to the USB port like this: sudo ln -s /dev/ttyUSB0 ~/.wine/dosdevices/com1 This link is permanent, so you only have to do it once. Hope

Hello Ian, BPF are working ok now! As you can check IK2YRA on wsprnet. It takes me a while to found a delta between Master calibration (175000)and WSPR calibration (149000) i write it to the ubitx

Ordered my uBitx jan21. PayPal just notified me shipment moments ago!

Ordered my uBITX on 19 Jan. Received my PayPal shipment order today. Fr Richard

Last time I checked, it was just the Windows .exe, which can be made to work on LINUX with Mono. I tried Mono on my Mac, but it did not work. I also tried Wine. It does come up, but I have no idea how

Upgrade to KD8CEC firmware. i use it and works perfectly 73 Carlos IK2YRA 2018-03-13 7:32 GMT+01:00 DrZ <zehrhj2@...>: -- Carlos Wenzel ik2yra@... +39-3284684518 Skype: IK2YRA

Hi Ashhar, this is precisely what i have done in the driver stages. Along with the MPSH10's. glenn vk3pe

Don I haven't tried a straight key but with the original firmware, I was having problems with erratic keying when using a paddle. ?Since upgrading to the KD8CEC I haven't noticed a problem. ? 73

Is there a uBitx manager program available for the Mac OS? 73 Mike KF6KXG

I think it’s a known issue, QRPGuys has a uBitx CW conditioner PCB for $4 shipped, you supply the parts https://qrpguys.com/ubitx-cw-conditioning-adapter?(

Ron, Replacing U1 fixed the problem.? I posted the chip details /g/BITX20/message/43594 Tom Ab&WT

I replaced U1 and it fixed the problem.? The part I received today was a batch of ST Microelectronics TDA2822M chips from Juried Engineering on Amazon

The freed up analog pin would be quite useful, I'm thinking SWR/PWR. I'd guess most uBitx users don't use the internal iambic keyer, will be several sources of firmware if they want it, perhaps using

A simple trick to buck the lower frequency gain is to use a low value capacitor in the emitter bypass of the predriver. The emitter will see a 100 ohms resistor at low frequncies and as the reactance

The added advantage of using ptt as the straight key is that i can tune up the antenna without having to carry a key to the field. There is another issue that it will solve as well. It is as follows :