1. “Give me FIVE!” – A QRP SSB multiband transceiver for 5 bands with 10 Watts output power - https://dk7ih.de/gimme-five-a-qrp-ssb-transceiver-for-5-bands-with-10-watts-output-power/

2. A Homebrew Z-Match Transmatch - https://wb3gck.com/2020/04/18/a-homebrew-z-match-transmatch/

3. END FED 6–40 Meter Multiband HF Antenna - http://www.earchi.org/92011endfedfiles/Endfed6_40.pdf

4. ADIF to Map Amateur Ham Radio Contacts by K2DSL - https://www.levinecentral.com/adif2map/

5. Запорізький радіоклуб UR4QZZ - https://www.youtube.com/channel/UCZgVRBp2MR7P68oOYRHCgHg/videos

** ZRC - //www.flickr.com/photos/182352982@N05/albums">https://www.flickr.com/photos/182352982@N05/albums

1. ME Series QRP Transceivers (ME40+ ME30+ ME20+ ME80+) - https://www.midwayelectronics.us/qrp/index.html

2. Retro SWR - https://www.cwtd.org/Jun5.html

3. Cabrillo Evaluator v3.39 - https://www.qsl.net/w3km/cabrillo.htm

4. Переробка комп'ютерного блока живлення на зарядний пристрій (лабораторний блок живлення). UR5YW made - https://www.youtube.com/watch?v=csgpNqZptak

5. Radiosonde decoder plugin for SDR++ - https://github.com/dbdexter-dev/sdrpp_radiosonde

** SDR++, The bloat-free SDR software - https://github.com/AlexandreRouma/SDRPlusPlus

1. Software Defined Radio Transceiver - https://makezine.com/projects/software-defined-radio-transceiver/

2. QuirkyQRPHamRadios - https://www.etsy.com/uk/shop/QuirkyQRPHamRadios

3. 30m CW activity group - http://30cw.net/

4. Feeder through wall (перехід до антени через стіну) - https://pa0fri.home.xs4all.nl/Ant/Doorvoer/feed-through%20wall.htm

5. End of the Year HAM RADIO Sales and Coupons! - https://www.youtube.com/watch?v=JgWJOBh_I1M

1. 5 Watt and a wire, QRP HF SSB activation of ONFF-0085 and ON-00976 - https://www.youtube.com/watch?v=GOI27csfqtc

2. Digital modes interface - http://iw7ehc.altervista.org/interfacciaDigiTipo2EN.htm

3. BiQuad Antenna Calculator - https://buildyourownantenna.blogspot.com/2014/07/double-biquad-antenna-calculator.html

4. Scout Frequencies - https://k2bsa.net/scout-frequencies/

5. Інтернет-мовлення - http://www.nrcu.gov.ua/maps

** Радіостанції України - https://radioua.net/

1. 50Ah LiFePO4 battery - https://ve6lk.com/50ah-lifepo4-battery/

2. Satellite Frequency List - http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm

** Status of active Satellites on Amateur Radio Frequencies - https://www.satblog.info/status-2/

** Satellite Frequency List - https://www.pe0sat.nl/satdb/

** SatNOGS DB - https://db.satnogs.org/

3. Ham Radio HF Nets - https://www.qsl.net/w5rin/FILES/Ham%20Radio%20HF%20Nets.pdf

4. A Simple Field Strength Meter (Простий вимірювач напруженості поля) - https://ve7sar.blogspot.com/2018/03/a-simple-field-strength-meter.html

5. FIRAC AWARD (Міжнародна асоціація залізничних радіоаматорів) - http://www.firac.de/html/firac-award.html

** Status of active Satellites on Amateur Radio Frequencies - https://englishlighthouseawards.uk/awards/