Biography

Hello!

My name is Piotr. I live in Elbląg, Poland. Thank you very much for visiting my page. I invite you to read my story. There were three amateur radio operators in my family: Franek SP4HEO (SK), Zygmunt SP2HMJ (SK) and Stanisław SP2MEH (SK).

Radio was an inseparable companion of my life. In my childhood I listened to the sounds coming from my parents' radio receivers. I often fell asleep with a small radio under my pillow. In 2012, I started listening to broadcasting stations on long, medium and short waves. I have many beautiful QSL cards. Between December 2018 and April 2019 I managed to listen to amateur radio stations under the callsign SP4001SWL. In 2019 I passed the exam and received the SQ4MIK call. The suffix comes from the name of my beloved cat Mik (Mikuś in Polish). She appeared on my QSL card.
I'm a member:

Polish Amateur Radio Union | SP2PHA Radio Club | Polish Radiovideography Club | SP Emergency Communications | The European Phase Shift Keying Club #29415 | FT8 Digital Mode Club #09885 | European ROS Club #05104 | Croatian Digital Group #02803 | Natal Digital Group #04378 | 30 Meter Digital Group #10817 | Russian Digital Radio Club #1267 | Feld Hell Club #6465 | TADMC Digital Mode Club #00592 | Belgium Club SSTV #00982 | A1 Club #3762 | QO-100 Dx Club #370 | Activity Group of Belarus (AGB) #01902 | SSTV Mode Club #SMC124 | Straight Key Century Club #26818 | YB6_DXC Digital Modes #2758 | FT4DMC #02431 | Alexander SAQ Grimeton Friendship Association #1799

QSL:

I use paper QSL - via bureau (several times a year) or direct (SAE+2$). I also upload my QSOs to eQSL.cc (daily) and LOTW, QRZ.com, CLUBLOG, HAMLOG (several times a month). SWLs are welcome, also for QRSS and WSPR modes.

My QRSS Grabber:

QRSS is an experimental radio mode that uses frequency-shift-keyed (FSK) continuous wave (CW) very slow Morse code to transmit messages that can be decoded visually by inspecting the radio frequency spectrogram.

My QRSS Grabber: https://www.qsl.net/sq4mik
Over 50 km on 481 THz:

On May 8, 2021, the group of Polish radio amateurs: Marek SP4ELF, Jurek SP2GUB, Adam SQ2DOL, Piotr SQ4MIK, and Jarek SQ4IOB realized optical communication (481 THz) between the locators KO04nd40DA and KO04fi31GV for a distance of 50.018 km. So we have broken the magic limit of 50 km!
SAQ station in Grimeton, Sweden on 17.2 kHz:

On November 16, 2022, was transmit from the SAQ station in Grimeton, Sweden using the 200kW Alexanderson alternator from 1924, on 17.2 kHz CW. I wanted receive the signal of this station for a long time, but only this year I managed to do it.

Preparations began in June. I found comprehensive information on how to receive the historic station from Grimeton at http://dl1dbc.net/SAQ. Based on the schematic provided by Sabine DL1DBC, I designed the PCB in KiCAD. I had never done this before, so I had to learn the basics of this very helpful tool along the way. After consultations with Marek SP4ELF, the project took its final shape and went to production at JLCPCB in China. At the beginning of July, the PCBs were ready. Marek SP4ELF sponsored 10 pieces and they went to interested colleagues. Piotr SP4ELO bought the electronic components, and Adam SQ2DOL designed and printed the case for the e-field probe.

I invite you to watch video: https://youtu.be/TQ_KBtpP-uM

Moja książka:

W 2020 r. napisałem bogato ilustrowany e-book o krótkofalarstwie w moim rodzinnym mieście. Do tej pory został on pobrany ponad tysiąc razy! Otrzymałem od kolegów z Polski, a także z zagranicy, wiele pozytywnych opinii na jego temat. Zapraszam zatem do przeczytania książki "Historia krótkofalarstwa w Elblągu".

Worked DXCCs:

Equipment

Transceivers, Receivers, Transverters, Transmitters:

Yaesu FT-991A, Kenwood TS-480SAT, Kenwood TM-D710E, Kenwood TS-700S, S-Pixie CW QRP TRX made by SQ4MIK, mikroQ80 FT8 QRP TRX, QRP Labs Ultimate3S QRSS/WSPR made by SQ4MIK, SDRplay RSP1A, Tube 144 MHz AM/CW TX made by SP2MEH, 481THz TRX Finningley Nanowave Mk II made by SQ4MIK, roWaves DJ1WF VLF Pocket Receiver, 2m TRV made by UT5JCW + TCXO, QO-100 TRV made by SP3OSJ, Degen DE1103 v. 1.0 World Receiver

Handheld Transceivers:

Yaesu FT-70DE, Quansheng UV-K5(8), Baofeng DM-1702, Baofeng UV-5R, Midland G11 PRO, Baofeng BF-T1
Accessories:

FM Hotspot made by SQ4GIN | MMDVM JumboSpot Hotspot | Power SWR Meter: INRADIO IN-20 | Digi Mode Interface: SP3CHT musb1017 | Microphone: Kenwood MC-50 | Power Supply: INRADIO IN-1225 + RFLABO Multiple DC Power Outlets 13.8V 35A | NanoVNA Vector Network Analyzer | Computer: Raspberry Pi 4B | QRP ATU made by SQ4MIK | PA Alan B42 VHF Booster | HF 1xGI-70BT Tube PA made by SQ3DWF | Automatic Antenna Tuner MAT-TUNER mAT-Y200

CW:

Straight Landline Key: The Great Northern Telegraph Co Ltd. Copenhagen-Denmark model 605 No 92020 | Straight Key TKF with filter (from Zdzisław SP2IRR) | Paddle: Bencher BY-1 No 126419 | Paddle: uniHAM UNI-730A | CW Keyer: MX-K2

Antennas:

Long-wire 41.5m + balun 1:9 (HF+6m), Diamond X-200N (VHF+UHF), Famaval TRX 110cm + 4.5 turn Helix + unmodified LNB AX Technology Opticum LSP 04H for QO-100, Arrow ANT for satellites made by SQ3BKH, RX Mini Whip ANT made by SQ4MIK + SAQrx v.0.98, NTi Mega Loop ML060 Active Loop Antenna (9kHz-60MHz) + NTi CPI1000 Coaxial Power Inserter (9kHz-1GHz) | HT Antennas: Komunica PWR-SRH-536, Diamond SRH805S, Diamond RH901S, Abbree RH-660S, Nagoya NA-701

Radio corner in memory of SP2MEH:

Tube 144 MHz AM/CW TX made by SP2MEH | 144 MHz Tube TRV made by SP2MEH | VHF TRX Unitra Warel "Ton" | VHF TRX Unitra Radmor R-4431K | Straight Key for RBM-1