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CHA RXL 

Page 11 

 

 

Specifications 

 

This is a RECEIVE-ONLY antenna 

 DO NOT TRANSMIT using this antenna

 

 

The Receive Loop must be installed a minimum of 25 feet from other antennas in use by 
transmitters transmitting 100 Watts or more.

 

 

Frequency: 135.7 KHz 

 30.0 MHz (continuous coverage, which includes the 2200m, 630m, and 160-10m 

amateur radio service bands and all medium and shortwave broadcast bands) 

 

Diameter: 36 inches 

 

Gain: Frequency dependent, see figure (2) 

 

RF Connections: 

o

 

Radio Receiver: UHF Socket (SO-239) for Coaxial Jumper to Radio Receiver. 

o

 

BIAS-T and Preamplifier Unit: BNC Socket.  Coaxial Cable between BIAS-T Unit and Preamplifier 
Unit must have BNC Male connectors at each end (see accessories list). 

 

Power: 12V DC (normally supplied by the included DC Power Supply, which requires 120V AC 60 Hz) 

 

Weight:  6 lbs. 

 

Mount: 1 ¼” mast, camera tripod, or table top

 

 

Personnel Requirements and Setup Time: one operator, around 5 minutes 

 

 

 

Figure 2.  Preamplifier Gain. 

 

 

Summary of Contents for CHA RXL

Page 1: ...LF MF HF Receive Loop Antenna CHA RXL Operator s Manual Nevada USA WWW CHAMELEONANTENNA COM VERSATILE DEPENDABLE STEALTH BUILT TO LAST...

Page 2: ...s that kill Never trust insulation to protect you Stay away from all power lines Photographs and diagrams in this manual may vary slightly from current production units due to manufacturing changes th...

Page 3: ...ical antennas Field trials demonstrated that with the CHA RXL mounted outside signals were typically only around one to two S units lower than a full size dipole antenna but that interference was less...

Page 4: ...oop Directivity A high level block diagram of the CHA RXL is shown in figure 1 Figure 1 Receive Loop High Level Block Diagram Antennas built by Chameleon AntennaTM are versatile dependable stealthy an...

Page 5: ...mbly and is used as the mount for the Receive Loop and Camera Tripod Attachment c Remote Antenna Connection The Remote Antenna Connection is a BNC socket used to connect the Coaxial Cable from the Pre...

Page 6: ...cket is not used if the CHA RXL is mounted on a camera tripod or placed on a table top Plate 5 CHA RXL Mounting Bracket and Hardware h Preamplifier Mounting Holes The two Preamplifier Mounting Holes a...

Page 7: ...lluminated when 12 14V DC power is applied to the BIAS T Unit o DC Power Socket The DC Power Connection is a 2 1mm X 5 5mm coaxial socket on the BIAS T Unit used to accept 12 14V DC power The center p...

Page 8: ...late 7 3 Place a Flat Washer over each of the four threaded bolts of the inserted U Bolts 4 Place a Split Washer over each of the four threaded bolts of the inserted U Bolts 5 Thread a Nut over each o...

Page 9: ...Split Washer over the inserted Knurled Knob Bolt 8 Thread a 10 Wing Nut onto the inserted Knurled Knob Bolt and tighten until firmly tightened by hand 9 The assembled end should look like that picture...

Page 10: ...n antenna switch duplexer rotor controller etc between the BIAS T Unit and the Loop Preamplifier 3 Connect one end of a Coaxial Jumper Cable not supplied to the Radio Connection m on the BIAS T Unit 4...

Page 11: ...rtwave broadcast bands Diameter 36 inches Gain Frequency dependent see figure 2 RF Connections o Radio Receiver UHF Socket SO 239 for Coaxial Jumper to Radio Receiver o BIAS T and Preamplifier Unit BN...

Page 12: ...Clamp Mount CHA UCM heavy duty antenna mount suitable for portable or semi permanent use Coaxial Cables in 12 25 and 50 lengths with BNC Male connectors at each end Chameleon AntennaTM Products Pleas...

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