The calibration function adjusts the base frequency of the Si5351, so all clocks are adjusted, including the PFO and 2nd IF frequency. For me I have found that adjusting the BFO, to get best response,

#calibration #ubitx-help

Alwaus do what the book says, they may have slues you don't. Sound like you not zero beating or the adjustment is not being kept. FIrst the Main cal must be done so that the actual frequency of the BF

#calibration #ubitx-help

All, I've been reading this group's posting for several months along with relevant postings for this topic...but I have some remaining confusion/questions. 1) What is the right order of adjustment: ca

#calibration #ubitx-help

Excellent info, Roman. Thanks very much! I’ve been trying to work out a way to get a more accurate BFO adjustment and without having test gear I’ve been stumped. Your procedure does the trick! 73 Mike

#ubitx-help #nextion #ubitx #calibration

An update on the BFO adjustment - It turns out that the info I gave about adjusting for the lowest pitch is wrong. If not adjusted correctly, you may end up transmitting both the signal AND the carrie

#ubitx-help #nextion #ubitx #calibration

The _S is for the Arduino S-Meter addition CEC documents on his website. That is quite the report, have me a bit nervous when I go to power up my V5 for the first time. May do your 386 mod since I pri

#ubitx-help #nextion #ubitx #calibration

I had very similar issues with my v5 ubitx I received recently. This is my journey... 1. Got v5 ubitx and hooked it all up in an open air case with single sided board as front panel 2. The audio sound

#ubitx-help #nextion #ubitx #calibration

Evan, Bingo! Thank you so much for that link and comment. I can imagine that the cryptic message might have been a truncated version of something like "[tune vfo] to exactly 10 MH press PTT & turn [of

#calibration #ubitx

Yes. I get you. Thanks. Perhaps the new method i saw on the same site, but as I went thro' hf signals ubitx site to day, this is what I found. Perhaps Farhan may have to relocate the relevant section

#calibration #ubitx

That calibration method is what was used before version 5.1 of the uBitX sketch, and still applies if you are using the KD8CEC sketch which just duplicated the old method. However, it is not correct f

#calibration #ubitx

Evan, I saw the details. Ashar Farhan says to tune to a Shortwave AM station and adjust "calibrate for soc alled zero beat, and later select an SSB signal for loudness (not clairy.) Then fine tune usi

#calibration #ubitx

Check on this thread, as the calibration procedure changed from the v4 to v5 software. https://groups.io/g/BITX20/topic/30236125 Note that the new process with HFSignals' firmware does go into transmi

#calibration #ubitx

Thanks for that, Curt. The N3SB article looks promising. Neil, KX2Y

#calibration #ubitx

Frequency calibration acts strange. Use search engine to find k3pzn ubitx page. Then look for calibration article by n3sb. Curt

#calibration #ubitx

I just finished assembling a uBitx. The display shows "ver 5.1" for the firmware. On first trials It seems to receive and transmit (with a dummy load) about as you'd expect, but when I tried to touch

#calibration #ubitx

Just to let you know I have managed to change the CW Tone using the encoder push switch method. I started the memory manager and uploaded from the uBitX. The CW setup table in the KD8CEC firmware now

#ubitx-help #ubitxcw #calibration

Hi Vic. Your advice and support is much appreciated. It has been a while since I worked on this radio and have forgotten a lot of the information. Not sure where the 65535 came from but I will have a

#ubitx-help #ubitxcw #calibration

You should be able to set the CW offset by entering 700 in the Nextion CW menu where it says CW Tone. I suspect it is ignoring the 65535 shown there now as an invalid number. You can also do this from

#ubitx-help #ubitxcw #calibration

Can someone outline how to alter the CW Tone offset frequency from 800Hz to 700Hz using the KD8CEC firmware please. I am confused by the conflicting data presented in the CW setup. Frequency and BFO c

#ubitx-help #ubitxcw #calibration

Thanks -- my goal with the uBITX was multiband ops with mini-effort and max coverage -- simplicity. I wasn't smart enough to know what this means is you lose low SWR numbers. But then I wasn't smart e

#calibration #firmware