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Preselectors
         
 

SCR Preselector page.

SCR Preselector-CAT

High-performance Software Controlled Radio Preselector.

1.8MHz to 50MHz tunable Band-Pass Filter bank. Digital tuning.

Five operating modes:

Stand alone. By means of its control knobs.

Remote:

- GUI. Graphic User Interface console from PC.

- CAT. From dedicated radio software. Tracking feature.

- TCP/IP. Over the Internet or local network.

- I2C bus. From adedicated external control system.

 

Tiny-CAT SCR preselector

Tiny-CAT SCR Preselector

Modular Software Controlled Radio preselector.

1.8MHz to 30MHz tunable Band-Pass Filter bank. Digital tuning.

Intended to complement experimental projects due its modular design.

 

 Four remote control modes:

- GUI. Graphic User Interface console from PC.-

- CAT serial protocol, Tracking feature.

- TCP/IP. Over the Internet or Local Network.

- I2C bus. From PowerSDR application.

 
 
         
Converters
 

VLF/LF converter

LF 10KHz to 500KHz to 3.5MHz-4MHz up converter.
LF 10KHz to 500KHz to 4MHz-4.5MHz up converter.
(suitable for SDR and analogue radios)

 



144MHz-146MHz to 28MHz-30MHz VHF down converter
for SDR radios.
( suitable for analogue radios)

 
         
Amplifiers
  Filtered Preamplifier    

LF-HF-VHF-UHF range of Pre-Filtered, Low Noise, High IP3 preamplifiers.

 
Antenna-signal switching
 

General purpose HF Dual By-Pass relay.
100Watts PP RF power rating.

 

General purpose HF-VHF Dual By-Pass relay.
100Watts PP RF power rating.

 
 


Antenna relay

General purpose antenna/signal relay.
100Watts PP RF power rating.

 

RF Switch details

Solid State RF switch (no relays)
10KHz - 3GHz

 
 

Splitter_By-Pass relay

Antenna Splitter&By-Pass Relay.
Panoramic reception.
Transmission monitoring.

 
    Splitters    
 

Two way Passive Antenna/Signal Splitter
Frequencies range:
model HF 100KHz to 400MHz
- Insertion loss: 3dB max.

 

Splitters

Two way Passive Antenna/Signal Splitter
Frequencies range:
model VLF 4KHz to 60MHz
- Insertion loss: 3dB max.

 
 

Splitter_By-Pass relay

Antenna Splitter&By-Pass Relay.
Panoramic reception.
Transmission monitoring.

 
    Filters    

 

100 Watts Broadcast Band Rejection filter (BCB filter)
By-passed filter in reception with no relays.
Suitable for inserting between any HF transceiver and antenna.

 

RF accessories

Mini Low Pass Filters range

 
  USB Digital Isolator  
 

USB Galvanic Digital Isolator for SDR radios.

 
    Antenna Accessories    
 

10KHz to 60MHz Antenna Galvanic Isolator.
Suitable for SDR or analogue radios.

 

Antenna Z match

Impedance Adapter for Long Wire Antenna (Input/Output Galvanically Isolated)
Suitable for SDR or analogue radios

 

 

VHF-UHF Galvanic Isolator

VHF-UHF-SHF Antenna Galvanic Isolator.
Suitable for SDR or analogue radios

    Measurement    
 

Step attenuator

0 TO 71 dB step attenuator Ladder configuration.

 

 

RF accessories

Pad attenuators range

 
 


     
 

40dB "T" attenuator. 100 Watts power rating.
Panoramic adaptor for transceivers & general measurements tool.

 

 

RF accessories

Mini Z bridge.
General purpose impedance measurement bridge.

 
         
    Electronic components    
 
         
  Offers   Toroid cores  
         
 

LODESTONE PACIFIC

Toroid Mounts

 
RF components

MiniCircuits

 
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