I need some help trouble shooting bitx 20 ver 3b mixer stage. The VFO p-p is 125mv (In fact I had to add a capacitor to the frequency counter for it to work)) Q7 dc voltage is per the manual , when I

#bitx20help

Newbie to uBitx and at 74 years young new to arduino also. I have a V5 ubitx. Having trouble calibrating frequency & BFO. I can adjust the frequency listening to another receiver and I can adjust the

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Thanks to all of you for your input...Regards Jes M0JSW

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The standard 8-way looms are colored per resistor code, 0 - 7. These correspond to pins 1 - 8 then 9 - 16. Smaller connectors similarly color 0 onward for numbers 1 up. I don't have a ubitx so I can't

#bitx20help #bitx40help

The standard firmware only provides basic LSB functionality. Improved Raduino firmware for BitX40 supporting LSB, USB, CWL, CWU, and other useful functionality is available at https://github.com/amunt

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What is the link to the assembly instructions you are using? Leonard

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Can you give a little more specifics on how you found the receivers were different?

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when I try to read the information in the drawing, it is all fuzzy and unreadable, can you send me a file that I can print out and be readable ? thank you.

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Kent , please see this link at bottom photo on page 15 https://groups.io/g/BITX20/files/New%20Hacking%20Your%20Bitx%20Version%203B%203C%2020%20For%2040mt%20Band.pdf perhaps it could help you. all the

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Thanks Sarma - and best wishes to you too. Paul ZS2OE

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I'm using the Hendricks digital dial kit that is sold with their BitX20A kit. I take it the only real way to attach it is to stick it to the solder pad of the relevant part on the underside of the boa

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Thanks Sarma for kindly publishing the datasheet. However, I had already looked it up and my problem was in my interpretation of it. I can follow vacuum tube and IC diagrams (I know which way round th

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Now to do an update. I want to add the S meter to the second line, while I build Jacks TFT display. Vince N2AIE

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Hi, No problem but: isolate the IRF510 from the heatsink.!! Rob

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Hello Just joined the group so hello to everyone. I have the the Hendricks Bitx20A kit. I already built a DDS board to replace the on board VFO. I have a simple question. What components are needed to

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I used npo ceramic I not have any smc to try on my 80 m bitx I am using a 5-50pf ceramic trimmer my 80 m set not ready for testing yet still waiting for parts my 40m bitx has good audio with the mod c

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Another one here: http://www.ad7c.com/projects/ad9850-dds-vfo/ 73, Dan.

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That's what I did I don't have pay pal it worked OK for me

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The web page works OK on my phone I like peters videos there very good I have built the AGC for my bitx and it works well

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Hello, For a personnal transceiver using a bidirectionnal TX/RX superheterodyne architecture with a simgle FI (20, 28, or 54 MHZ SSB ladder filter) made with severals modules availlables on eBay, alls

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