Silent Key
Involved in Radio since 1965 Licensed since 1980
Main interests: 50MHz-10GHz, Constructions, Propagation study, E.M.E ( moonbounce),Satellites
Other Interests: Construction of optical telescopes and radio telescopes, SETI
1^st SV E.M.E station on air 1982
5.5m Dish prime focus f/d .4
SV1OEin the shack2008SV1OE--10Ghz 1981
------------------- 1296 Mhz Power-Amp2x (7289)---------------
4x17 el beam + splitter 2.4 Ghz 1296Mhz Low Noise Cavity Pre-amp
Band Pass Filter 2.4 Ghz Patch Antenna 2.4 Ghz
30 cm Telescope Mirror f/d 4 4x17 El Beam 2.4 Ghz 19.5 dbd
60 cm Fiberglass Dish + Circular Feed Horn 2.4 Ghz 2.4m Fiberglass Dish + Feed Horn 1296 Mhz
5.6 Ghz Linear pol Feed Horn 2.4 Ghz Circular FeedHorn
3m Dish + Circular pol feedhorn 1296 Mhz 4x17 El Beam 144 Mhz
7 El patch Antenna 2.4 Ghz3 Ele Band Pass Filter 2.4 Ghz
1.8--54 Mhz Low Pass FilterSV1OEin the shack 2007
5.5m dish construction
5.5m dish construction
<-----------------------------------5.5m Dish For EME --------------------------------->
----------------------------5.5m Dish-----------------------
ATV Test Card8 El Beam Quad 50 Mhz
51 El Beam 1296 MhzTowerwith antennas
1296 Mhz low noise Cavity Pre-amp Slot Antenna 1296 Mhz
4x 17 el beam 2.4Ghz 2.4 Ghz Test bench
Band pass Filter 2.4 Ghz
2.4 Ghz four way Splitter
Septrum Feed horn 1296 Mhz 2.4 Ghz four waySplitter Test
3m Dish Sun Noise Measurements1296 Mhz 3m Dish
5.5 m Dish SV1OE in the shsck 2009
Tower + Antennas1296 MhzTx/Rx + cavitypreamp relays mounted under the dishantenna
23 cm Antenna Horizontal pol OmniAntenna 2el x 2 + Splitter 1296 Mhz Mobile
Slot Antena, 51 El beam H Pol, 35 el beam V pol 1296 MHz,2m 10 el,5El 50 mhz ---------------J Pole Antenna 1296 Mhz-------------
SV1OE in the shack--200110 cm Casegrein Maksutof Telescopef/d 10
3m Dish
23cm Omni H Pol Mobile Antenna-- 70cm Casegrein Dish !0 Ghz--30cm Newtonian + CasegreinTelescope
Septrum Feedhorn23cm Power/SWR Meterhardware
Septrum Feed Horn1296 Mhz
Septrum Feed Horn 1296 Mhz
60 cm Fiberglass Dish2.4Ghz Sun + filter on monitor
1296 MhzPower Amp 6x( M 57762 )120W Power /SWR meter
Low noise Cavity Pre-Amp 30cm TelescopeSun spot Measurements
2.4mFiberglassDish Sun Noise measurements 30cmTelescope mirror test bench
10 cm telescope Sun spots Measurements 1990 1296 Circular pol Feed horn test bench
5.5m Dish +Circular pol Feed Horn
Cavity Filter+Cavity Pre-Amp 23cm Antennas
Sun spots 17/05/2000 Polar Mount
20m gamma match tuner with step-motor under antenna
1WInput 20W Output Linear Amp 23cm (M57762 )2.5 w LinearAmp 23cm ( M67715 )
2.5 w Linear Amp 23cm ( M67715)Horizontal Pol Omni Mobile Antenna
2 el beam 23cm Ground Plane 23cm
Moon + Venus Moon + Venus
SV1OE in the shack 1984 Seti
------------Low Pass Filter1.8-52 Mhz----------------
Installation of 12m tower on roof of QTH 3m dish with 23cm feed horn + polar mount
SV1OE in the --2008Coax Transformer 50/75
Cavity Water Cooled Linear amp 2.4 Ghz ( 7289 )
CavityWater Cooled Linear amp 2.4 Ghz ( 7289 )
50cm Ofsset Dish Dual Feed horns 5.6GhzWater Cooled amp 2.4 Ghz ( 7289 ) withPump +Tank
60 cm Fiberglass Dish 5.6 Ghz
--------------- FM ATV 1296.040 Mhz---------------
20 watt 23 cm P.A ( M57762 ) Inside view of 20 watt P.A
1296MhzTx/Rx + cavitypreamp relays mounted under the dishantenna 30 cm Telescope Mirror after Grinding
50 Mhz Band Pass Filter + Pre-Amp 23 cmP.A 6x (M 57762 )120W Output
120watt 23cm P.A (6x M57762) 500watt 1296 Mhz ( 6x 7815AL)
500watt P.A 1296 Mhz ( 6x 7815AL ) + Driver Water Cooled3mdish polar mount with stepper motorfor tracking
amp( 7289 )
View of Moon onMonitorSun + filteron monitor
Sun Noise Measurements with 3m dish Declination scale attached to dish
Declination scale attached to dish 5.6 Ghz linear Feed Horns
Band Pass Filter 1296 Mhz3m dish Polar Mount
Band Pass Filter 1296 Mhz
Frequency counterBand Pass Filter 1296 Mhzcomponents
23 cmfour waySplitter 1296MhzCavity pre-am1296 Mhz
+++++++++++++++++++++++ Bulding a cavity 23cm preamp step by step ++++++++++++++++++++
