Retro QRP CW Transceiver with added AGC circuit
Time stamps:
00:00 - 00:32 Introduction, technical overview
01:55 - 02:32 AGC turning OFF/ON
04:25 - 05:05 The first QSO in MWC contest
06:06 - 07:06 The second QSO in MWC contest
08:20 - 10:05 The third QSO in MWC contest
10:15 - 11:10 The fourth QSO in MWC contest
11:15 - 11:57 The fifth QSO in MWC contest (DL1QC)
Technical description (in Czech language): http://599.cz/fc-oled-15-b.html
I have refurbished QRP CW transceiver SW80+ (Smallwonderlabs) with added scale (a frequency counter), an iambic keyer and an AGC circuit. The AGC regulation signal is derived from an output audio signal, so there is evident delay in regulation action.
The scale (frequency counter) is able to communicate via CAT with PC contest logbook. In this video I show the operation with logbook TR4W.
Some technical Info about frequency counter: http://599.cz/fc-oled-15-b.html
Some technical info about the iambic keyer: http://599.cz/elbug.html
Some technical info about the USB-UART converter with i-coupler: http://599.cz/i-coupler.html (in Czech language).
Rules of MWC contest: https://memorial-ok1wc.cz/index.php?p...
Equipment used to make the video:
Camera Canon EOS 60D
Lens Sigma 105mm/2.8 Macro
Samsung Galaxy A8
FastStone Capture
Cyberlink PowerDirector 18