Covert CB Radios To The Ham Bands - The Receiver How It Works

In this video series I take look at old 1980s CB radio equipment with the view to modifying them to operate on the Ham radio bands. The video explores where these old two way radios came from, how they work in detail and what can be done to modify them including working test examples made up from readily available parts. I also take a look at how modern technology can interact with vintage electronic radio equipment.


This is part 1 of 3 and covers the receiver.

The video is aimed at radio enthusiasts with an interest in electronics.

Please feel free to leave comments.


Timecodes
0:00-Intro
1:29-Demonstration of receiving on other bands
4:17-Let’s Talk about the Radios
5:27-What do we know about Cybernet
8:56-The Cybernet receiver block diagram
10:13-The Cybernet receiver how it works a practical scenario
12:30-The Cybernet receiver how it works AM mode
22:01-The Cybernet receiver how it works SSB mode
25:32-How to modify the receiver coverage
30:38-Cybernet schematic diagram
33:31-Cybernet receiver AM/FM & SSB IF insertion points
36:28-Time for a new receiver front end
54:31-Basic front end test configuration HF
1:11:55-Basic front end test configuration UHF
1:13:27-Outro chat about the receiver
1:18:09-End credits whilst building a voltage controlled attenuator



Module Links
QRP Labs Band Pass Filters
https://www.qrp-labs.com/bpfkit.html


Jani Lab Band Pass Filter
https://janielectronics.com/index.php...

RF Mixer AD831 (Amazon)
https://www.amazon.co.uk/Frequency-Tr...

Low Noise RF Amplifier (Amazon)
https://www.amazon.co.uk/1-2000MHz-Wi...

NXP BAP64Q Datasheet
http://www.farnell.com/datasheets/233...




Related Links
New York Times
Sayonara to the C.B. Boom?
https://www.nytimes.com/1976/12/26/ar...


CB Channels Wiki
https://en.wikipedia.org/wiki/Citizen...

Kyocera History
https://global.kyocera.com/company/su...

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