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CHA F-LOOP 3.0 

Page 

8

 

 

 

j.

 

Coupling Loop Attachment - 

The Coupling Loop Attachment is used to attach the Coupling 

Loop (c) to the top of the Telescoping Mast (g). 
 

k.

 

Coupling Loop Adjustment - 

The Coupling Loop Adjustment is used to tighten the Coupling 

Loop Attachment (j).   

 

l.

 

Loop Connection - 

The Loop Connection is a UHF socket located on the bottom of the Coupling 

Loop (c) used to attach the Coaxial Cable (m).  

 

m.

 

Coaxial Cable - 

The Coaxial Cable 

(not shown) 

is a 12 foot length of RG-58 coaxial cable, with an 

RF isolator at the antenna end, used to connect the CHA F-LOOP 3.0 Antenna to your radio set.   

 

n.

 

Aluminum Base Plate - 

The Aluminum Base Plate is on the bottom of the Tuning Unit (a).  It is 

used to provide a stable base for placing the CHA F-LOOP 3.0 on a flat surface, such as a table, 
or to mount the CHA F-LOOP 3.0 to a heavy-duty camera tripod or an 3/8

 antenna mount. 

 

o.

 

Rigid Radiator Loop 

(included with PLUS model) - 

The Rigid Radiator Loop 

(not pictured)

 is a 

super high efficiency two-piece aluminum radiator loop included with the PLUS model. 

 

p.

 

Rigid Radiator Loop Mounts - 

The Rigid Radiator Loop Mounts are used to attach the Rigid 

Radiator Loop (o) to the Tuning Unit (a). 

 

q.

 

Telescoping Mast Stud - 

The Telescoping Mast Stud is located on top of the Tuning Unit (a) and 

is used to attach the Telescoping Mast (g) to the Tuning Unit.   

 

r.

 

Loop Extension Barrel Connector - 

The Loop Extension Barrel Connector is a double-female 

UHF connector (SO-239) used to join the Flexible Radiator Loop (b) to the Flexible Radiator 
Loop Extension (d), which enables the CHA F-LOOP 3.0 to operate the 80 meter ham band. 
 

s.

 

Power Compensator

 (optional) - 

The optional Power Compensator attaches to Flexible 

Radiator Loop Connection (f) on the left side of the Tuning Unit (a).  It is used to increase the 
power handling capability of the CHA F-LOOP 3.0.   

 

t.

 

Camera Tripod Mount - 

The Camera Tripod Mount is used to mount the CHA F-LOOP 3.0 to a 

heavy-

duty camera tripod using a ¼” x 20 standard camera tripod stud.  There are two 

threaded Camera Tripod Mounts in the Aluminum Base Plate (n), one in the center and one 
near the back edge.  Either may be used.   

A ¼” x 20 to 3/8” x 24 adapter

 (CHA SS ADAPTER) is available for purchase to enable use of the 

CHA SPIKE MOUNT, CHA JAWMOUNT, or CHA UCM optional high-quality antenna mounts. 

 

Summary of Contents for CHA F-LOOP 3.0

Page 1: ...CHA F LOOP 3 0 Page 1 HF Portable Loop Antenna 3 0 CHA F LOOP 3 0 Operator s Manual Nevada USA WWW CHAMELEONANTENNA COM VERSATILE DEPENDABLE STEALTH BUILT TO LAST...

Page 2: ...9 Double Flexible Loop Assembly CHA F LOOP 3 0 BASIC 10 Flexible Booster Loop Assembly CHA F LOOP 3 0 TOTAL 11 Rigid Radiator Loop Assembly CHA F LOOP 3 0 PLUS 12 Power Compensator Installation 13 Lo...

Page 3: ...real practical advantage of the small loop compared to a short vertical whip tuned against earth or a full sized vertical antenna is the loop s freedom from dependence on a ground plane and earth for...

Page 4: ...cause you to mistune the antenna Antennas built by Chameleon AntennaTM are versatile dependable stealthy and built to last Please read this operator s manual so that you may maximize the utility you...

Page 5: ...m Usable Frequency MUF Lowest Usable Frequency LUF and Optimal Working Frequency OWF The MUF is the frequency for which successful communications between two points is predicted on 50 of the days of i...

Page 6: ...NVIS during field testing of the CHA F LOOP 3 0 both DX and NVIS contacts were made on the 30 meter ham band within minutes of each other Parts of the Antenna The CHA F LOOP 3 0 is comprised of the f...

Page 7: ...diameter 146 inch length of shorted coaxial cable with UHF Plugs at both ends and is designed to increase CHA F LOOP 3 0 TOTAL performance in the 60 through 15 meter ham bands f Flexible Radiator Loo...

Page 8: ...del p Rigid Radiator Loop Mounts The Rigid Radiator Loop Mounts are used to attach the Rigid Radiator Loop o to the Tuning Unit a q Telescoping Mast Stud The Telescoping Mast Stud is located on top of...

Page 9: ...following steps to assemble the Standard Single Flexible Loop configuration 1 Select a location to setup the CHA F LOOP 3 0 BASIC antenna The location can be indoors or in an outdoors area protected...

Page 10: ...gle Flexible Loop configuration uses the standard Flexible Radiator Loop Flexible Radiator Loop Extension d and small Coupling Loop included with the CHA F LOOP 3 0 BASIC CHA FLOOP 3 0 PLUS and CHA F...

Page 11: ...he transmitter and observing the SWR meter If used indoors the location should also be reasonably away from switching power supplies Internet routers and other sources of electrical and electronic int...

Page 12: ...the Rigid Radiator Loop Antenna see plate 6 1 Select a location to setup the CHA F LOOP 3 0 PLUS antenna The location can be indoors or in an outdoors area protected from the weather The location must...

Page 13: ...tible antenna mounts available from Chameleon AntennaTM 9 Connect the Coaxial Cable Feedline m to the Loop Connection l 10 Secure the Coaxial Cable Feedline along the Telescoping Mast to ensure easy t...

Page 14: ...antenna configuration Figure 1 Band Switch Label Table 2 shows the more precise frequency range for each antenna configuration and switch setting If the desired operating frequency is in both positio...

Page 15: ...ky straps 5 If used un attach the Rigid Radiator Loop Re install the hardware in the Rigid Radiator Loop flanges so they do not get lost 6 Fully collapse Telescoping Mast 7 Remove Coupling Loop from t...

Page 16: ...ible Booster Loop approximately 4 0 23 1 MHz 60 through 15 meter ham bands Power 25W intermittent duty cycle SSB telephony 10W continuous duty cycle CW AM FM RTTY and other digital modes Diameter 34 i...

Page 17: ...ly any flat surface CHA SPIKE MOUNT The CHA SPIKE MOUNT is an innovative product built exclusively by the skilled machinists at Chameleon AntennaTM It is a precision fabricated heavy duty stainless st...

Page 18: ...Portable Antenna Pioneer References 1 Silver H Ward editor 2013 2014 ARRL Handbook for Radio Communications 91st Edition American Radio Relay League Newington CT 2 1987 Tactical Single Channel Radio...

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