1. JBOT – An Easy QRP linear amplifier - https://www.vu2ese.com/index.php/2020/06/19/jbot-an-easy-qrp-linear-amplifier/

2. DK5JI: Countries with CEPT Licence (2023-03-12) - https://files.darc.de/index.php/s/CKT38kZP6miK7xf

3. The United States Frequency Allocation Chart - https://www.beautifulpublicdata.com/the-united-states-radio-frequency-allocation-chart/

4. Список українських постачальників компонентів - https://docs.google.com/spreadsheets/d/1vEC8ZElSIXJTsE8_0axEp6kBmYmTfmfnDcni1pl_hKw/edit#gid=0

5. Compact 20m Yagi - http://www.iw5edi.com/ham-radio/5872/compact-20m-yagi

** Six Meter Yagi Antenna - http://www.iw5edi.com/ham-radio/5886/six-meter-yagi-antenna

1. The 'MELITTA Version II' : a compact 5 bands remote switchable BPF - https://www.qsl.net/on7eq/projects/melitta_v2.htm

2. KC9ON: CW Morse Products - https://kc9on.com/product-category/cw-morse-products/

** IK0YGJ: Zen and the art of radiotelegraphy - https://www.qsl.net/ik0ygj/enu/ZART_r20101008m.pdf

3. Microvert antenna calculator - https://lowreal.net/2013/microvert/

** Can Antenna Calculator - http://www.dk3red.homepage.t-online.de/en/s15_04.htm

4. DVSwitch Mobile (це програма PTT для Android для операторів радіоаматорів, яка дозволяє з’єднуватися з іншими радіоаматорами в мережі AllStarLink) - https://play.google.com/store/apps/details?id=org.dvswitch&hl=en_US&gl=US

5. Flrig v1.4.8 (Ham Radio Digital Modem Application) - https://sourceforge.net/projects/fldigi/files/flrig/

1. DK7IH: A “lean design” SSB-Transceiver for 14 MHz - https://dk7ih.de/a-lean-design-ssb-transceiver-for-14-mhz/  

2. MicroVert Antennas - http://www.dk5ai.de/projects/microvert

3. 80/40m Vertical (+160M) - https://www.qsl.net/ei7ba/80&40mVertic.htm

** Antennae for the Low Bands..80 and 160m - https://www.qsl.net/ei7ba/low_band_antennae.htm

4. ITU International Morse Code Recommendation - https://www.itu.int/rec/R-REC-M.1677-1-200910-I/

5. UY1RA: Трансивер и SDR - https://gosh-radist.blogspot.com/2023/03/sdr.html?m=0

** Трансивер и SDR II - https://gosh-radist.blogspot.com/2023/03/sdr-ii.html?m=0

** Трансивер и SDR III - https://gosh-radist.blogspot.com/2023/03/sdr-iii.html?m=0

1. N2HTT’S XIEGU X5105 3D-printed frame - https://qrper.com/2023/03/n2htts-xiegu-x5105-3d-printed-frame/

2. (tr)uSDX now with a spectrum scope ((tr)uSDX тепер із спектром) - https://itshamradio.com/trusdx-now-with-a-spectrum-scope/

3. CW Key-to-Rig Switch Box - https://udel.edu/~mm/ham/keySwitch/

4. HF DXView Propagation Map - http://hf.dxview.org/

5. Диполь Гончаренка DL2KQ на 145 МГц з кабеля: виготовлення, та тестування - https://www.youtube.com/watch?v=aCOC-JH_Moc&t=1s

1. KC8AON''s QRP Projects: The Untenna - https://www.simplehamradioantennas.com/2023/03/kc8aons-qrp-projects-untenna.html

2. CW Key-to-Rig Switch Box - https://udel.edu/~mm/ham/keySwitch/

3. QSO Today Virtual Ham Expo (March 25-26, 2023) - https://www.qsotodayhamexpo.com/

4. URE WebCluster - https://webcluster.ure.es/

5. Походная антенна на 7 - 28 МГц - https://www.youtube.com/watch?v=bek3nYQzfPo

ВІТАЄМО ВСІХ НАШИХ ПРЕКРАСНИХ ЖІНОК І ОСОБЛИВО ВІКТОРІЮ (UT7AW), ЛІДІЮ (UT2AL) І ОЛЬГУ (US6IVB) ІЗ СВЯТОМ ВЕСНИ!

1. Portable 40m CW Transceiver - https://zl2ctm.blogspot.com/2018/06/portable-40m-cw-transceiver.html

2. K1FM Mini Magnetic Loop - https://k1fm.us/2014/06/k1fm-mini-magnetic-loop/

3. First EME QSO - https://www.florian-wolters.de/posts/first-eme-qso/

4. TikTok: RadioPrep - //www.tiktok.com/@radioprep">https://www.tiktok.com/@radioprep

5. 28 MHz Antenna Project – 10m Flowerpot Antenna - https://vk1nam.wordpress.com/2022/12/02/28-mhz-antenna-project-10m-flowerpot-antenna/