1. QSST VideoAthon PCBTransceiver - http://qrpme.com/?p=product&id=QSST
2. 70cm Quadruple Quad - http://www.iw5edi.com/ham-radio/5619/70cm-quadruple-quad
** 1:4 Current Balun - http://www.iw5edi.com/ham-radio/5506/14-current-balun
3. PA0FRI's active loop antenna - https://pa0fri.home.xs4all.nl/Ant/PA0FRI's%20actieve%20antenne/PA0FRI's%20active%20loop%20antenna.htm
4. DIY FUME EXTRACTOR 3D Printed Attiny13 (витяжка диму) - https://www.instructables.com/Fume-Extractor-1/
5. End Fed Half Wave Antennas - https://elginradio.wordpress.com/2017/10/17/end-fed-half-wave-antennas/