Gary, Is it possible to remove the Raduino and display from the case and connect to the USB port on your computer without the mainboard? The Raduino should powerup and the display should show the norm

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Thanks yes I did. I took the digi board completely out of the loop. If I put the original nano in the radio acts as a normal v 4 ubitx. I can't figure out why these replacements won't work?

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Somewhere I read that after some changes were made, the V6 had to be turned off and back on for the changes to take effect. I think there was a few seconds delay in turning it back on required (in the

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Gary, Did you try powering up the rig without the USB connection to the Nano from the digi board? There may be an issue with the digi board. 73 Evan AC9TU

#arduino #bitx20 #bitx20help #antennas #audiocircuit

I don't think I worded my first post very well. I am trying to install a new nano board. The v 4.3 sketch loads properly no errors when it compiles or loads. This board seems to be the identical physi

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Sorry Gary. I misread your email. Ignore my comments.

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Hi Gary, I flashed a spare Nano or tried to using the IDE Software with verbose ticked for the Upload option. It kept failing with a can't sync 500 error. I found I had to select the OLD BOOTLOADER op

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Greetings i am pretty new here and I want to thank everyone in advance for their help. I am trying to sort out an issue with a digiboad that I had installed that worked for a while then quit. It had b

#arduino #bitx20 #bitx20help #antennas #audiocircuit

Give or take, it’s approximately 50 ohms

#antennas #ubitxv6

Hi What is the RF output impedance of the uBITX, v6? just became owner of the new baby, soon QRV, I hope :-) vy 73 de OZ6TI

#antennas #ubitxv6

belthur, One other thought, The RF could be coming in through the mic cord. A snap-on ferrite and 0.01 uF bypass caps on the input to the ubitx could help if that is the issue. 73 Evan AC9TU

#ubitxv6 #antennas

Are you amplifying the mic at all? Do you have another receiver that can be used to verify the output of the ubitx? The only way to be sure is to measure the output. What I have done is build a -50 db

#ubitxv6 #antennas

Checked. CW is just fine. How do I avoid audio overdrive?

#ubitxv6 #antennas

Thanks. No, my uBitx case isnt grounded. I will fix that. I will also try a Balun. Thanks.

#ubitxv6 #antennas

My first guess would be RF back into the ubitx. Especially since it is with the linear amp on. Do you have the ubitx in a metal case, is it grounded, do you have a common mode choke on the coax to the

#ubitxv6 #antennas

Added a 20m antenna to my Inverted V already having 40m. Now, I have 7150 in VFO:A and 14220 in VFO:B. When I give a TX, it will switch over to VFO:A in the middle of TX... If I have 14220 in VFO:A, i

#ubitxv6 #antennas

Okay now I will tell a story - I first saw and used an automated VNA around 1979. I will still a EE college student, but had a work assignment at a company then called RCA. The VNA from a company then

#antennas #v6

Nano VNA is a nice tool to learn and build antennas. Comes with inbuilt battery that lasts easily for few hours. Bit delicate in build and not rugged for field use, especially if you buy the one that

#antennas #v6

A SWR meter is all that is needed to adjust simple antennas. However the nano VNA makes it easy to see where the antenna is resonate. You can take them out to the antenna so you do not have to go to t

#antennas #v6

Russ, All true until you get high enough and it starts going down. I'd describe it as higher the closer to 70 ohms (natural impedance for dipole). Also at less than .25 lambda the impedance is lower t

#antennas #v6