background image

CHA F-LOOP 2.0 

Page 10 

 

electromagnetic wave is maximum at the boundary between the ground and the space above, loop performance is 
usually best when the loop is located near the 

ground at a distance outside of the loop’s close

-in induction field 

(just a loop diameter or two).  The CHA F-LOOP 2.0 is not waterproof and must be installed in an area protected 
from the weather.  Do not use an antenna tuner or coupler with this antenna, as it may cause you to mistune the 
antenna.  

Perform the following steps to assemble the Flexible Booster Loop Antenna, see plates (2) and (3). 

1.

 

Select  a  location  to  setup  the  CHA  F-LOOP  2.0 
TOTAL antenna.  The location can be indoors or 
in  an  outdoors  area  protected  from  the 
weather.    The  location  must  facilitate 
accessibility by the operator to the Tuning Knob 
(h). The operator needs to be able to adjust the 
Tuning  Knob  while  listening  to  the  receiver, 
activating  the  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 interference. 

2.

 

Remove the CHA F-LOOP 2.0 TOTAL components 
from the Portable Bag (o). 

3.

 

Attach  the  Telescoping  Mast  (g)  to  the  Tuning 
Unit  (a)  by  screwing  the  bottom  of  the 
Telescoping  Mast  onto  the  Telescoping  Mast 
Stud (q), located on the top of the Tuning Unit. 
Tighten  snuggly,  by  gripping  the  base  of  the 
Telescoping Mast and turning clockwise.  Do not 
grip  the  mast  tubing  or  use  tools  when 
tightening.  

4.

 

Attach the large 8 inch Coupling Loop (c) to the 
Coupling Loop Attachment (j), located at the top 
of  the  Telescoping  Mast,  by  placing  the 
threaded hole in the Coupling Loop bracket over 
the Coupling Loop Attachment stud and turning 

the  Coupling  Loop  Adjustment  (k)  knob  until 
snug.  The UHF connector should be in front  of 
the Telescoping Mast and point down, as shown 
in Plate (2). 

5.

 

Fully extend the Telescoping Mast sections.  

6.

 

Connect  one  end  of  the  Flexible  Booster  Loop 
(e) to the left Radiator Loop Connection (f). 

7.

 

Connect  the  other  end  of  the  Flexible  Booster 
Loop to the right Radiator Loop Connection. 

8.

 

Secure  the  top  middle  of  the  Flexible  Booster 
Loop  to  the  top  middle  of  the  Coupling  Loop 
with one of the attached Sticky Straps. 

9.

 

Shape  the  Flexible  Booster  Loop  into  a  circular 
shape.  The Coupling Loop and Flexible Booster 
Loop should be in the same plane. 

10.

 

Place the CHA F-LOOP 2.0 on a flat surface, such 
as  a  table  top,  or  attach  the  Aluminum  Base 
Plate  (n)  to  a    tripod  or  other  compatible 
antenna mount. 

11.

 

Connect  the  Coaxial  Cable  Feedline  (m)  to  the 
Loop Connection (l).  

12.

 

Secure the Coaxial Cable Feedline along the 
Telescoping Mast to ensure easy tuning and 
consistent low SWR. 

13.

 

Perform  an  operational  test  (see  procedure 
below). 

 
Power Compensator Installation 

The  optional  Power  Compensator  will  increase  the  power  handling  capability  of  the  CHA  F-LOOP  2.0  to  60W 
intermittent duty cycle (SSB telephony) and 25W continuous duty cycle (CW, AM, FM, RTTY, and SSB-based digital).  
To install the Power Compensator, place the bracket of the Power Compensator (s) over the left Flexible Radiator 
Loop Connection (f) and position the canister as shown in Plate (6). 

Summary of Contents for CHA F-LOOP 2.0

Page 1: ...HF Portable Loop Antenna 2 0 CHA F LOOP 2 0 and CHA F LOOP 2 0 TOTAL Operator s Manual Nevada USA WWW CHAMELEONANTENNA COM VERSATILE DEPENDABLE STEALTH BUILT TO LAST...

Page 2: ...t voltages that kill Never trust insulation to protect you Stay away from all power lines WARNING Never operate this antenna where people could be subjected to high levels of RF exposure especially ab...

Page 3: ...receive than an outside full size quarter wave vertical antenna Remarkable for an antenna that is only less than three foot in diameter and covers 3 5 MHz to 29 7 MHz 80 10 meter ham bands The magnet...

Page 4: ...the primary method of HF radio wave propagation HF radio waves on a frequency below the critical frequency found by an ionosonde are reflected off one of the layers of the ionosphere and back to Eart...

Page 5: ...t and 4 8 MHz during the day A magnetic loop antenna radiates at all angles from horizon to zenith making it an equally effective antenna for both local and long distance DX communication While not sp...

Page 6: ...exible Radiator Loop Extension The Flexible Radiator Loop Extension consists of a 102 inch length of shorted coaxial cable with UHF Plugs at both ends The Flexible Radiator Loop Extension enables the...

Page 7: ...ry Table 2 CHA F LOOP 2 0 and CHA F LOOP TOTAL Frequency Ranges 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 Cou...

Page 8: ...istune the antenna Perform the following steps to assemble the Standard Flexible Loop Antenna see plates 2 and 3 1 Select a location to setup the CHA F LOOP 2 0 antenna The location can be indoors or...

Page 9: ...e following steps Plate 4 Double Flexible Loop Antenna 1 Perform assembly of the Standard Single Flexible Loop configuration 2 Disconnect one end of the Flexible Radiator Loop b Loop 1 from one of the...

Page 10: ...when tightening 4 Attach the large 8 inch Coupling Loop c to the Coupling Loop Attachment j located at the top of the Telescoping Mast by placing the threaded hole in the Coupling Loop bracket over t...

Page 11: ...to the desired frequency range 3 Adjust the Tuning Knob h for maximum receive signal strength Turn the Tuning Knob counterclockwise to decrease the resonant frequency see Plate 8 You will know when yo...

Page 12: ...r Loop Connections f are securely tightened 3 Inspect Flexible Radiator Loop b for damage Replace if damaged 4 Ensure the Coaxial Cable Connection m is securely tightened to the Loop Connection l 5 In...

Page 13: ...h may vary Table 3 2 1 SWR Bandwidth Weight 4 lbs Personnel Requirements and Setup Time one operator around 2 minutes Do not use an antenna tuner or coupler with this antenna Accessories The following...

Page 14: ...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...

Reviews: