High-performance Software Controlled Radio Preselector
TUNABLE BANDPASS FILTER BANK FOR HF BANDS
Covering 1.8MHz to 30MHz in five bands.
Variable Digital Tuning.
Features:
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Improves your average receiver or scanner to lead with strong signals on the most noisy and crowded bands and protects the sensitive front-end components of the receiver.
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Designed to be used as Front-End in Software Defined Radios.
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Removes radiated signals back to antenna from quadrature mixers.
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Joined to a VFO performs tracking tuning function.
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Complete Front-End for your projects.
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Standalone or PC controlled through a graphical user interface.
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High speed USB v2.0 compliant.
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Plug and Play feature.
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Runs under Windows XP and WindowsVista32 Operating Systems.
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SCR Preselector Graphic User Interface on PC.
Runs under Windows XP and Vista32.
SCR Predelector Progam Software
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SCR Preselector Brochure download |
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SCR Preselector in May/June of QEX magazine.
The SCR Preselector is featured in the May/June 2008 issue of QEX.
Reprinted with permission © ARRL
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SCR Preselector Rear Panel view
Dinamic Display detail. Standalone mode
The SCR Preselector working with ICOM IC-R5 scanner receiver.
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(Click on picture to enlarge.)
The SCR Preselector working together with a Softrock 40/80m RTXv6.2.
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(Click on picture to enlarge.)
SCR Preselector Transmission plots.
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SCR Preselector with removed cover.
Solid aluminium enclosure.
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The main board.
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Control module
LCD display 3 linesx16 characteres with backlight.
The PIC microcontroller 18F4455 is located below the LCD display.
On the right hand two incremental encoders with push switch for
Tuning/Functions and Band /Function Selection..
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SCR Preselector
Including:
CD with installable Software package, USB driver and Manual.
Set of BNC-BNC leads.
USB cable.
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£ 475.00 |
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ACCESSORIES
Two Signal Path RF Relay for In Line Insertion
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Designed to By-Pass the SCR Preselector in transmision mode.
Connected in line between your transceiver and the antenna by-passes the SCR Preselector on transmission switchover avoiding being overloaded.
Activated by means of the main or auxiliar PTT.
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Frequency range: DC - 60MHz
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Insertion loss: 0.2 dB @ 50 MHz
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Isolation: 60 dB @ 50 MHz
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Power rating: 200 W PEP
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Impedance: 50 Ohm
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SWR: 1.22 @ 50MHz
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Voltage /current: 12 Volts DC/65 mA
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Switching time:
- Set: 15mS
- Reset: 5mS
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External Dimensions: 40x37x111mm.
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Diagram
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Two Signal Path RF Relay
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£ 95.00 |
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Impedance Adapter for longwire or beverage antenna.
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Provides the impedance match for the high Z that present wire antennas.
A special designed broadband toroidal transformer provides the impedance match between the antenna and the 50 ohm input impedance of receivers.
Ideal for connect an auxilliary longwire or beverage antenna on table-top receivers or for portable operation.
Gas Discharge Tube safeguard.
4 mm. banana/screw post for the wire antenna side connection.
BNC connector on 50 Ohm Receiver side.
Earth post.
Frequency: HF 0.1MHz to 30MHz.
Power rating: Reception.
External dimensions (H,W,D): 30x55x37mm. |
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Impedance Adapter - High Z to 50 Ohms
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£ 45.0 |
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