Sziasztok!
Összeállítottam egy listát arról, hogy milyen eszközöket és módszereket
használnak jelenleg
a rádiós észlelők.
Az angolul nem tudók számára egy kis szótár:
Observer - az észlelő neve
Location - az észlelés helyszíne (földrajzi koordinátákkal kiegészítve)
Frequency - a használt frekvencia
Receiver - a használt rádiókészülék tipusa (vagy a vételre használt
egyéb készülék)
Antenna - a használt antenna leírása
Observing method - a megfigyelési módszer részletes leírása, használt
programok, számítógép
Data sampling systam - adat mintavevő rendszer (néhányan itt írják le,
hogy milyen programokat használnak)
Transmitter - annak az adónak az adatai, aminek a jeleit az észlelés
során veszik (erre van hangolva a rádió)
Üdvözöl: Szabolcs
Observer: Enric Fraile Algeciras
Location: Centre Meteorologic de l´Alt Camp (Tarragona) (01 15´ E, 41
17´ N)
Frequency: 49.7396 MHz
Transmitter Location: CZE Praha and HNG Budapest
Antenna: 3 element Yagi Azimuth 200 deg (NE), elevation 20 deg
Receiver: home made converter 20 dB gain, 1 dB noise and Kenwood TS570.
10 dB attenuator in the receiver to reduce direct reception
Sensitivity: 0.25 uV for 10 dB S/N
Observing method: the audio signal of the video carrier is received using
a SSB filter (2500 Hz) and fed into the PC in real time.
Data sampling system: own written software "MSD" with sound card.
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Observer: Michael Boschat
Location: Halifax, Canada (63 36´ W, 44 39´ N, 58 meters above sea level)
Listening Frequency: 83.24 MHz
Receiver: Icom R-10
Antenna: resonant dipole
Antenna Direction: Horizontally polarized with lobes in E-W plane, elev
0 deg
Filter: high-Q (Q at least 300) bandpass filter between antenna &
receiver.
Listening Mode: CW
Recording method: listening by ear
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Observer: Jeff Brower
Location: Kelowna, British Columbia, Canada (49 51´ N, 119 34´ W)
at 360 meters
Receiver: ICOM PRC-1000 CW mode
Sensitivity: 0.32 uV for 10 dB S/N for CW mode
Antenna: Log Periodic az 155 deg, 120 deg after Sep 12
Frequency: 61.260,408 MHz
Transmitter: Bend Oregon 58 kW
Computer: Dell Latitude CPXH 500GT Laptop
Data sampling system: MAnalyzer
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Observer: Willy Camps
Location: Tessenderlo, Belgium (5 06´ E, 51 14´ N)
Frequencies: 49990 kHz
Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 55´ E, 50
49´ N),
50 W, carrier (no modulation), LHCP, upward beaming
Antenna: 2 element quad in diamond shape, az 82 deg, elev 31 deg
Receiver: AR8600 Mark2 SE
Computer: Fujitsu Siemens 1.4 GHz
Observing method: Spectrumlab, Colorgramme for RMOB v 2.0
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Observer: Gaspard De Wilde ON4ZK
Location: Dessel, Belgium (5 06´ E, 51 14´ N)
Frequencies: 49990 kHz
Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 55´ E, 50
49´ N),
50 W, carrier (no modulation), LHCP, upward beaming
Antenna: crossed dipole RHCP, elev 45 deg, azimuth 95 deg (W)
Receiver and antenna home made
Observing method: automated setup, 100 samples/second, 8 bit resolution.
differential measurement for local noise reduction.
[Time and details of all individual meteor reflections are
stored
on file in the Ghent University format (Prometeos), and are
available for further analysis].
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Observer: David Entwistle
Location: Goosnargh, near Preston (England) 53 49´ N, 2 40´ W
Frequency: 55.25 MHz TV channel E3 (video) Portugal; transmitter Lousa
Antenna: Jaybeam 3-element Yagi, Az 180 deg, elev 10 deg
Polarization horizontal
Receiver: Icom PCR1000
Computer: Dell Latitude
Software: Meteor v 8.2 Software
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Observer: Valter Gennaro (FENICS Work Group)
Location: Osoppo (Ud) Italy (13 05´ E, 46 16´ N)
Frequency: 53.760 MHz
Transmitter: Video Carrier from Monte Cammarata (Sicily, Italy),
(T<-- 980 km -->R)
Azimuth 170 deg (SE) (DXCC=IT9 QRA=JM67 ERP = 35 kW Pol=h)
Antenna: 5 element Yagi, 10 dBi gain, Elevation 5 deg
Receiver: Icom 7100 SSB; Out signal: Rec Remote
Filter: DAIWA Mod. AF-606K Set = 2.5 kHz
Audio Sampler: SoundBlaster 16; 5120 samples/sec; 16 Bit Mono
Software: WRegWav: File audio wave Recorder.
WElabFFT: Converter from file Wav to File FFT;
Sampling interval: 2048 FFT points with resolution 2.50 Hz.
WLookFFT: Visualize FFT data and collect Meteoric tracks.
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Observer: Patrice Guérin
Location: Le Pin, France (0 39.5´ E, 46 51.8´ N, alt 180 m)
Frequency: 90.25 MHz
Antenna: 5 element Yagi FM, astronomical azimuth = 40 deg (SW)
Elevation = 20 deg
Receiver: FM tuner Yamaha digital synthesizer TX-492RDS.
Observing method: Electronic interface on LINE (Pierre Terrier)
output audio signal are fed in COM1: of PC 286/12 boosted 8
MB RAM
Meteor v 7.1 Software COLORGRAMME ON LINE.
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Observer: Patrick Mergan (Andromeda - Belgium)
Location: Gijzegem, Belgium 50 59´ N , 4 03´ E
Frequency: 66.29 MHz
Transmitter Locations:
R. Rossii - St-Petersburg?
R.Rif - Biysk (Altayskiy Kray)?
Nadvoitsy (Respublika Kareliya)?
Makhnevo (Sverdlovskaya oblast) RSM?
Antenna: 4 elements Yagi, direction East, elevation 20 deg
Antenna amplifier: 15 dB
Receiver: Modified Pioneer TX-D1000
Observing method: S-meter via low pass and comparator fed to LPT1: port
of PC
Data sampling system: self written DOS program (tmet.exe) in Turbo Pascal.
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Observer: Cristian Negru = YO3FFF =
Location: 25 09´ 55" E, 44 07´ 59" N, 84m ASL, Romania
Frequency: 143.05MHz
Transmitter location: GRAVES radar JN27SI
Transmitter equipment: CW bistatic radar, see WEB
Receiving antenna: 14 el Yagi 15dBd gain, 18 m AGL, Azimuth 290 deg
Receiving equipment: Tsys 182K, RX threshold -138dBm USB,
BW 2.4KHz, AGC-ON; PC feed on SB;
Software: Spectran 213, sampling rate 5512 Hz; 1 min GIF saving
Observing method: manual counting on GIF files; all meteor reflections
were counted, underdense/overdense all together
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Observer: Sadao Okamoto
Location: Damine Meteor Observatory, Japan (137.53 E, 35.07 N)
Location: Nissin site at Nissin City (137 01 27 E, 35 07 17 N,
Height=30 m)
Transmitter: HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by
JA9BOH Kimio Maegawa. No modulation except for
identification.
Antenna: 2 element Cross Yagi 4 dBi aiming to Zenith. Omni-directional
in azimuth and elevation above 15 deg elevation.
Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N)
At present time more than 100 observers are listing for
Kimio Maegawa´s 53.75 MHz beacon.
Receiver: IC575
Antenna : 2 element HB9CV, pointed to the zenith
Observing method: HROFFT and HROview software, manual count.
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Observer: Mike Otte
Location: Pearl City, IL, USA (42 N, 90 W)
Frequency: 97.9 MHz
Antenna : 4 elem Yagi pointed south west, elev 45 deg
Receiver: Nissan radio
Observing method: Colorgramme WMeteor v 3.2 on Compaq 233 MHz
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Observer: Jean-Louis Rault
Location: Epinay sur Orge (near Paris), France (48 40´ N, 2 20´ E)
Frequency: 48.250 MHz TV channel; transmitter Nevacerrada
Antenna: turnstile omni, elev 45 deg, 10 dB attenuator
Receiver: PCR1000
Computer: Pentium IV
Software: HROFFT + Colorgramme RMOB Lab 1.5
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Observer: Andy Smith
Location: Tavistock, Devon, UK (50 33´N, 4 08´ W)
Receiver: Yaesu FT857
Antenna: 9 ele Tonna, az 120 deg (SE), elev 20 deg
Frequency: 143.050 MHz Graves
Computer: Athlon PC 2GHz processor, 1 GB memory, WinXP Pro running
SpecLab
Observing method: Colorgramme RMOB Lab v 1.5
Automatic counting using Spectrum Lab v2.5
Sporadic E automatically suppressed from counts!
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Observer: Dave Swan
Location: Christchurch UK (50.47 N 1.44 W)
Receiver 1: Pro 2006 (modified to give a carrier detected
output for Chessell 301 pen recorder).
Detected signal level > 23 dBm
Antenna: 5 element Yagi Gain 7.5 dBd.
Azimuth 210 deg elevation 10 deg.
Antenna relocated and RG 213 low loss cable installed on
July 28, 2001. This removed a -2 dB loss from the antenna
and feeder system.
Frequency: 55.25 MHz
Transmitter: TV channel E3 (video) Portugal; transmitter Lousa;
distance ~ 1250 km
Computer: AST 486 Notebook with Meteor v 7.1 software
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Observer: Istvan Tepliczky
Location: Tata, Hungary (18 24´ E, 47 40´ N)
Frequency: 95.6 MHz
Antenna: 5 element Yagi (100 MHz), horizontal polarisation, azimuth SW,
elevation 0 deg., antenna head amplifier 15-20 dB gain
Receiver: Videoton RT-7300S
Observing method: Electronic interface on LINE output audio signal are fed
in COM port of a PC. METEOR v 8.0 version processes the signal
and records on hard disk the time of the events.
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Observer: Diego Valeri
Location: Contigliano (RI) (42.4103 N, 12.7679 E, 420 m)
Frequency: 49.7396 MHz
Transmitter Location: HNG Budapest
Antenna: 4 element Yagi: Azimuth 67 deg (NE), elevation 12 deg
Receiver: TV B/N with amplifier 10 dB gain
Observing method: audio signal of the video carrier is received using
a SSB filter (2500 Hz) and fed into the PC in real time.
Data sampling system: "MSD" software with sound card 8-16 bit.
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Observer: Felix Verbelen ON4AVF
Location: Kampenhout, Belgium (4 36´ E, 50 57´ N)
Frequency: 49990 kHz
Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 55´ E, 50
49´ N),
50 W, carrier (no modulation), LHCP, upward beaming
Antenna: 2-elements HB9CV Yagi, elev 52 deg, azimuth 250 deg (W)
Receiver: ICOM 7100
Observing method: automated setup using PC soundcard + Spectrum Laboratory
software [Digitised sound and computer images are stored on
local
harddisks for further analysis.
Only overdense meteor reflections are counted manually and
used for
statistics] |