https://github.com/afiskon/hbr-3b

QRP CW Transceiver
https://github.com/afiskon/hbr-3b

amateur-radio diy electronics ham-radio morse-code qrp radio si5351 stm32 transceiver wireless

Last synced: 5 months ago
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QRP CW Transceiver

• Host: GitHub
• URL: https://github.com/afiskon/hbr-3b
• Owner: afiskon
• License: mit
• Created: 2022-07-16T08:55:15.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-12-24T20:42:31.000Z (over 2 years ago)
• Last Synced: 2024-11-05T10:44:41.520Z (6 months ago)
• Topics: amateur-radio, diy, electronics, ham-radio, morse-code, qrp, radio, si5351, stm32, transceiver, wireless
• Language: C
• Homepage: https://eax.me/hbr-3b-transceiver/
• Size: 7.27 MB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# HBR/3B

QRP CW Transceiver

* Covers 30, 17, and 12 meters

* Easily modifiable for other 3 bands or [all 8 HF bands](https://github.com/afiskon/hbr-8b)

* Classical single IF superheterodyne design

* Free of spurious signals!

* Simple but effective AGC

* Supports RIT and XIT

* 10-30 WPM Elekey-B type keyer + straight key mode

* Keyer settings are saved in EEPROM

* ~5W class C power amplifier

* Has a S-meter and a SWR meter

* Open-source firmware, schematic and 3D-printable enclosure

Links

* Article (in Russian): https://eax.me/hbr-3b-transceiver/

* Demo: https://www.youtube.com/watch?v=xab1Q_SXZec