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CHA RXL 

Page 8 

 

Receive Loop Assembly 

The CHA RXL antenna and can be permanently mounted on an outdoor TV-style antenna mast, used portable on an 
apartment balcony, or next to an RV, using a camera tripod, or indoors placed on a table top.  Prepare the CHA RXL 
for the intended installation method and then assemble the loop using the procedures below.

Mast Mount.

 Perform the following steps to prepare the CHA RXL for mast mounting, see plates (7)-(9). If not 

mounting the CHA RXL on a mast, skip to the Loop Assembly procedure. 

1.

 

Layout the mast mounting hardware as shown in 
the right photograph in plate (5). 

2.

 

Insert both U-Bolts through the U-Bolt Holes (i) in 
the  outside  of  the  Mounting  Bracket  (g),  as 
shown in plate (7).   

3.

 

Place  a  ¼”  Flat  Washer  over  each  of  the  four 

threaded bolts of the inserted U-Bolts. 

4.

 

Place  a  ¼”  Split  Washer  over  each  of  the  four 

threaded bolts of the inserted U-Bolts. 

5.

 

Thread a ¼” Nut over each of the four threaded 

bolts of the inserted U-Bolts. 
 

 

Plate 7. Mast Mounting Bracket Assembly. 

6.

 

Position the Preamplifier Unit (b) upside down on 
the work surface. 

7.

 

Place the Mounting Bracket on the bottom of the 
Preamplifier  Unit,  as  shown  in  plate  (8).   

The 

Mounting  Bracket  can  be  installed  in  either 
direction,  depending  on  your  installation 
requirements.  
 

 

Plate 8. Attaching Mounting Bracket. 

8.

 

Insert  a 

¼” 

Allen  Head  Bolt  through  both 

Preamplifier  Mounting  Holes  (h)  and  into  the 
corresponding threaded holes in the Preamplifier 
Unit  mounting  plate  on  the  bottom  of  the 
Preamplifier Unit.  

9.

 

Tighten both Allen Head B

olts using a 5/32” Allen 

wrench until tight, as shown in plate (9). 

 

 

Plate 9. Tightening Allen Head Bolts. 

 

 

 

 

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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