PE1ITR - VHF AND UHF WEAK SIGNAL EXPERIMENTS

PE1ITR is the callsign of a dutch amateur radio station located in Eindhoven, The Netherlands. QTH-locator is JO21QK. I am Rob Hardenberg, the operator of the amateur radio station and licensed since 1981.

This website is dedicated to my VHF-UHF-SHF weaksignal operations, radio propagation studies, Earth-Moon-Earth communication experiments and satellite activities. I have a blog in which I regularly report on these activities.
I maintain a real-time Sporadic E-Skip dxalert system. Also running a DX Cluster. Online Magnetometer.

In a changing station setup active in the frequencybands: 50MHz, 70MHz, 144MHz, 432MHz, 1296MHz, 2320MHz, 3400MHz and 10368MHz in SSB/CW, FM, Digital Modes and Amateur Television. I regularly listen to broadcast stations at long distance at: 65-72MHz (OIRT), 88-108MHz (FM Broadcast), 175-230MHz (DAB) with adequate equipment.
Lately I've been very interested in Reduced Bandwidth Digital Amateur Television (RB-DATV). I really enjoy RB-DATV Dxing and contesting on VHF-UHF (51.7 MHz, 144.6 MHz, 436-438 MHz with DVB-S/S2, DVB-T).

Member of VERON. QSL directly or via the QSL-Bureau. I am participating in the LoTW. This is my QRZ.com page. Pse contact me for skeds.

This website is created on 23 aug 2003; Last modified on

Blog

(2024-06-02) Digital mode Q65 and Aurora Propagation.
(2024-05-28) Magnetometer Data and Aurora Propagation.
(2024-05-26) Online Magnetometer for Aurora.
(2024-03-24) FT8 Multi stream and Multi Anser on VHF with MSHV
(2024-01-26) 222 MHz Transverter and Station.
(2023-09-??) My DATV Receiver.
(2023-09-20) VHF DXpedition to P4 - Aruba 2024.
(2023-09-05) 51.7 MHz DATV (part 4) from Texel Island.
(2023-08-27) 51.7 MHz DATV (part 3) and DATV august contest.
(2023-07-16) 51.7 MHz DATV (part 2).
(2023-05-20) **DX Record** PI4GN received by HB9/PE1ITR 695 km. 144.6 MHz DVB-S 125ks FEC 1/2.
(2023-03-11) Digital Amateur Television DXpedition to DL and HB9 may 2023.
(2022-11-08) DATV and Airplanescatter.
(2022-09-18) RX of PA3BYV DATV 436 MHz 66ks via Airplane reflection: here and here (without audio stream element)
(2022-09-10) PA3AOD received by PE1ITR distance 184km. Analog AM television at 434.250 MHz.
(2022-09-01) PA0BOJ datv op 70cm ontvangen in Texel 182 km.
(2022-08-27) DATV Contest 2022-08-21 LX/PE1ITR JO30BA.
(2022-08-17) QSOs between PA and 4X on 144 MHz.
(2022-07-24) QSOs between PA and EA8 on 144 MHz.
(2022-06-21) Amateur Radio VHF Norge Ekspedisjon 2022 (LA/PE1ITR).
(2021-08-16) 144 MHz Contest Setup (Part 3).
(2021-08-03) 23 elements yagi on 868MHz (and 903 MHz).
(2021-05-26) High MUF on VHF.
(2021-05-19) FM-DX vanuit Trintelhaven op 19-05-2021.
(2021-05-08) Experiments on 8m (40 MHz).
(2021-04-08) Graves Radar Update April 2021.
(2020-12-14) 4m radar experiments (part1).
(2020-11-20) Leonids 2020 VHF Radar Experiments.
(2020-11-09) 144 MHz Telegraphy Marconi Memorial Contest 2020.
(2020-11-07) VHF Radar Experiments Airplane Backscatter.
(2020-10-25) Orionids 2020 VHF Radar Experiments.
(2020-10-07) UHF Activity Report IARU Contest October 2020.
(2020-09-02) VHF Radar Experiments 2020.
(2020-08-22) DATV 144 MHz experiment August 2020.
(2020-07-12) DATV DX-ing and settings.
(2020-07-11) DATV 144 MHz experimenten.
(2020-07-06) Verslag VHF contest Juli 2020.
(2020-06-12) FM-DX RX Converter 100 - 108 MHz to 20 - 28 MHz.
(2020-06-08) 144MHz E-skip dxalert design.
(2020-05-17) 70MHz 6 elementen 28 ohm impedantie yagi antenne.
(2020-04-29) Linrad, SDR-IQ and GNUradio.
(2020-04-08) 144MHz OWL Antenna converted to X-pol yagi.
(2020-03-05) DATV and Interfering signals.
(2020-03-05) Power Measurement with GNU Radio.
(2020-01-22) DATV op 50MHz (part 1).
(2019-11-13) QO-100 setup.
(2019-09-25) 144 MHz Contest Setup (Part 2).
(2019-09-21) FM-DX 8 elementen OWL yagi antenna.
(2019-08-14) Navspasur Radar. Update of my old webpage.
(2019-07-27) GNURadio AM television receiver with very narrow bandwidth
(2019-06-05) Report VERON Velddagcontest 1/2 juni 2019 on 144MHz
(2019-05-23) Amateur Radio VHF DXpedition to D4, Cabo Verde july 2019. PE1ITR = D44LA
(2018-09-05) The antenna 3 stack
(2018-07-23) Report 144MHz E-skip Propagation 2018-07-23
(2018-07-08) juli 2018 contest activity report
(2018-06-19) Verslag IARU 50/70MHz contest bij PI4MAX
(2018-06-03) 144MHz Activity Report CdF 2018
(2018-04-29) Simple PI4 Beacon Transmitter in GNU Radio
(2018-04-14) Ontvangst van bakens op 70cm
(2018-03-18) Lineaire transponder met gnuradio
(2018-02-24) 13cm Web SDR eerste testen
(2018-02-06) Miniwhip of E-field probe antenne
(2018-01-21) Linrad Splatter Killer for Wideband FM
(2018-01-05) Quadrantids 2018 en Meteorscatter op 70cm
(2017-12-20) Smalband ATV (SATV) met 70cm TV zender
(2017-12-11) ATV contest december 2017 bij PI4GN
(2017-11-29) FM-DX - Phase Shifter (1)
(2017-11-27) FM-DX RDS en meteorscatter (2)
(2017-11-25) FM-DX RDS en meteorscatter
(2017-11-14) FM-DX experiment met een extra reflector (1)
(2017-11-13) Nieuwe straler voor de 144MHz 11el K5GW yagi antenne
(2017-10-25) Mijn eerste ontvangst van een EME station in 1986
(2017-10-15) 10GHz WebSDR in Eindhoven
(2017-10-15) 70cm 3DA0MB Moonbounce DXpeditie
(2017-10-02) Oscar 10
(2017-10-01) 70cm ATV ontvangst verbeterd
(2017-09-30) Verslag belevenissen AMSAT DL Jahreshauptversammlung 2017
(2017-09-16) Nieuwe 13 cm atv zender
(2017-09-11) ATV Contest september 2017
(2017-09-04) 144MHz september 2017 contest PC5T
(2017-08-27) Bochum 20170826 9cm EME
(2017-08-24) 144MHz Zomercontest August 2017 Activity Report
(2017-08-02) Update 144MHz index page
(2017-07-30) My 9el 12.5Ohm OWL Antenna
(2017-01-13) FSK441 versus MSK144 laboratory tests
(2017-01-07) Quadrantids 2017 en Meteorscatter op 70cm
(2016-12-29) FM Antenne 9 elements OWL 106MHz
(2016-12-12) atv contest 10 11 december rode berg belgie on/pe1itr jo10js
(2016-11-07) PI4MAX 144MHz CW Marconi Memorial Contest 2016
(2016-11-01) 432mhz antenna november 2016
(2016-10-01) 432mhz antenna oktober 2016
(2016-09-10) PC5T 144MHz IARU contest september 2016
(2016-08-01) fm dx transmitter santis 107.8mhz distance 708km
(2016-05-24) Homemade 2m Transceiver (1985)
(2016-05-24) VHF Radar Experiments 2016
(2016-04-16) My QTH JO21QK
(2016-02-27) Spectrum Pictures of digital voice modes
(2015-10-24) Pantelleria DXpedition IH9/PE1ITR on 50MHz and IH9/PE1BTV on 144MHz from JM66AT (2015)
(2015-09-09) pc5t september 2015 vhf contest
(2015-08-05) 3 element Band 3 antenna
(2015-03-22) Codan 9360 HF SSB Transceiver
(2014-12-15) **DX 2.3 Million KM** Detection of Shin-en2 at 437,385MHz
(2014-12-15) **DX 4.7 Million KM** Detection of Artsat2:Despatch at 437,325MHz
(2013-10-28) Report of my IG9Y expedition adventures on the VHF bands and Lampedusa pictures.
(2013-09-14) 144MHz Multiple Antenna System Setup for Contesting (Part 1).
(2013-08-13) Notes on meteor scatter on 432MHz
(2013-08-01) The Detection of the NAVSPASUR RADAR by Moonreflection or Passive Satellite Reflection in Eindhoven, The Netherlands.
)2013-05-02) Omni Directional 50 MHz Contest Antenna.
(2012-12-07) Notes on 50 MHz Moonbounce antenna.
(2012-06-30) 50MHz Low Pass Coaxial Stub Filter.
(2012-03-17) DAB Receiver
(2012-04-01) PE1ITR/P JO22HR. Active in the RSGB 70MHz contest. We were the best overseas entrant.. En Audio contest impressie.
(2011-07-24) FM-DX DX-pedition to Afsluitdijk.
(2011-06-27) FM-DX Antennas
(2011-04-24) DAB Band 3 Yagi Antenna
(2011-04-17) FM-DX DX-pedition to Lauwersoog.
(2009-11-15) My first 70 MHz station.
(2009-10-02) Satellite Scatter.
(2009-08-20) Simple Interferometer.
(2009-04-25) **Updated**The 143.050MHz Graves Radar a VHF Beacon for Amateur Radio.
(2009-08-15) XP217: Detection of RAFT 216.980MHz transponder 4 milliwatt beacon. RAFT has been launched 21 dec 2006 from the Space Shuttle Discovery. Re-entry in the earth atmosphere at 30 May 2007.
(2009-04-11) 50MHz Splitter.
(2008-11-26) **DX 14 Million KM** Detection of the Mars Reconnaissance Orbiter at 437,100MHz.
(2008-09-16) Delfi C3.
(2007-05-08) 2007 LA/PE1ITR dxpedition to JP31 square..
(2006-03-17) Article about passive satellite reflections (link to pdf document).
(2005-01-01) 217 MHz antenna and Preamps for Navspasur Experiments.
(2004-03-03) Reception of the S-band downlink from Oscar 11.
(2002-09-01) QRV via Oscar 40 on the L-band uplink.
(1988-01-01) VHF BAND 3 175 - 225MHz. Year 1987 - 1988.
(1987-01-01) VHF BAND 1 45 - 70MHz. Year 1985 - 1988.
(1985-08-02) Meteorscatter SSB QSO's. Old recordings of YU1MWP and SM4KYN.
(1983-08-09) First contacts via the Oscar 10. A high elliptical orbiting amateur radio satellite
(1983-06-10) 1983 PE1ITR/OE dxpedition to GG square..
(1983-02-03) The callsign PE1ITR is assigned to me. This is a full technical license. First contact with this callsign.
(1981-06-27) The callsign PD0LJX is assigned to me. This is a Novice license. Allowed on 6 Channels 145.250/275/325/350/375/400 MHz with FM. My First amateur radio contacts.
(1975) The Operator of PE1ITR at the age of 10. The picture shows I am a Star Trek fan at a young age and that I played with Fischertechnik at the time. My interest in Radio started 2 years later.


144MHz 3x9el owl	144MHz 9el DK7ZB	432MHz EME 4x16el DK7ZB

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Contest and Dxpeditions

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