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CHA TD 2.0 

Page 12 

 

Terminated Sloping Wire 

The CHA TD 2.0 Sloping Wire antenna, see figure (2), is a broadband short to medium range HF antenna.  
It  is  designed  to  provide  acceptable  ground  wave  and  sky  wave  propagation.    This  configuration  is 
predominately  omnidirectional  on  lower  frequencies,  becoming  more  unidirectional  towards  the  low 
end  of  the  antenna  as  the  frequency  increases.    Positioning  of  the  ground  Counterpoise  Wire  also 
produces directivity towards the end of the Counterpoise Wire on higher frequencies.   
The Terminated Sloping Wire requires one support, is a good general-purpose antenna, and is excellent 
for  hasty  deployment  -  when  there  is  insufficient  time  or  space  for  deployment  of  the  Terminated 

Inverted “V” antenna.  

It should be raised to a height of around 25 feet for best performance.  When 

raised to 25 feet, the Terminated Sloping Wire antenna requires 55 feet of space for installation. 

One Terminating Resistor Unit and one Antenna Wire are not used in this configuration. 

 

 

 

Figure 2. Terminated Sloping Wire. 

 
To erect the Terminated Sloping Wire antenna, perform the following procedure. 

 
Site Selection and Preparation. 

1.

 

Perform 

Terminating 

Resistor 

Unit 

Assembly procedure, if needed. 

2.

 

Select  a  site  to  deploy  the  CHA  TD  2.0 
Sloping  Wire  antenna,  see  figure  (2).  The 
best  site  should  have  a  tree  or  other 
support that would enable the Terminating 

Summary of Contents for CHA TD 2.0

Page 1: ...Tactical Dipole 2 0 CHA TD 2 0 Operator s Manual Nevada USA WWW CHAMELEONANTENNA COM VERSATILE DEPENDABLE STEALTH BUILT TO LAST...

Page 2: ...ferences 21 Be aware of overhead power lines when you are deploying the CHA TD 2 0 You could be electrocuted if the antenna gets near or contacts overhead power lines Photographs and diagrams in this...

Page 3: ...nt Sky wave NVIS communication and its broadband design supports Automatic Link Establishment ALE frequency hopping and spread spectrum modes The CHA TD 2 0 can be deployed by the operator in the fiel...

Page 4: ...ful communications between two points is predicted on 50 of the days of in a month The LUF is the frequency below which successful communications are lost due to ionospheric loses The OWF which is som...

Page 5: ...letter references are used to identify components in the detailed assembly instructions Plate 2 Matching Transformer Unit Details A Matching Transformer Unit B Suspension Eyebolt C Top Counterpoise C...

Page 6: ...te 3 Antenna and Counterpoise Wire Details G Counterpoise Wire 25 ft Quantity 2 H Antenna Wire 60 ft Quantity 2 I Terminal Lug J Carabiner Quantity 6 K End Loop L Insulating Ring Plate 4 Terminating R...

Page 7: ...n Point P Strain Relief Point Q Shock Cord R Antenna Wire Winding Notch S Counterpoise Wire Winding Notch Plate 5 Miscellaneous Components Details T Tent Stakes Quantity 4 U Throw Bag V Short Mini Par...

Page 8: ...olding an Antenna Wire H roll together 6 Install a Carabiner on an Insulating Ring L at one end of the Antenna Wire 7 Attach the Carabiner to the Strain Relief Point of the Terminating Resistor Unit t...

Page 9: ...lso provide NVIS capability below 10 MHz Below 10 MHz the antenna is bidirectional broadside to the antenna Above 10 MHz the pattern contains multiple lobes Bringing the ends of the antenna towards ea...

Page 10: ...a Carabiner on the Insulating Ring at the free end of the other Antenna Wire 10 Attach the Carabiner to the Suspension Eyebolt 11 Connect the Terminal Lug at the end of the Antenna Wire to the Top Co...

Page 11: ...ve the Tent Stakes into the ground at that point 22 Rewind Long Mini Paracord onto Mini Line Winder Z 23 Return unused components to the Duffel Bag and perform an operational test Plate 8 Inverted V A...

Page 12: ...ral purpose antenna and is excellent for hasty deployment when there is insufficient time or space for deployment of the Terminated Inverted V antenna It should be raised to a height of around 25 feet...

Page 13: ...ne end of the Terminating Resistor Unit using a Bowline or similar knot 13 Untie the Mini Paracord from the support and pull the Mini Terminating Resistor Unit up to the desired height 14 Secure the e...

Page 14: ...nnect the Coaxial Cable from the Matching Transformer Unit 4 Carefully roll do not twist the Coaxial Cable 5 Untie the Mini Paracord from the Matching Transformer Unit or Terminating Resistor Unit if...

Page 15: ...ng Also provide details such as antenna configuration frequency and what steps you have taken to troubleshoot the problem Field Installation and Repair Kit The following components are not supplied bu...

Page 16: ...ack Personnel Requirements and Setup Time one trained operator approximately 10 minutes Figures 4 through 10 show Far Field plots for the various CHA TD 2 0 configurations Figure 3 Measured SWR Figure...

Page 17: ...CHA TD 2 0 Page 17 Figure 5 Terminated Inverted V 7 1 MHz Figure 6 Terminated Inverted V 14 1 MHz...

Page 18: ...CHA TD 2 0 Page 18 Figure 7 Terminated Sloping V 110 Opening 14 1 MHz...

Page 19: ...CHA TD 2 0 Page 19 Figure 8 Terminated Sloping Wire 3 7 MHz Figure 9 Terminated Sloping Wire 7 1 MHz...

Page 20: ...minated Sloping Wire 14 1 MHz Chameleon AntennaTM Products Please go to http chameleonantenna com for information about additional quality antenna products available for purchase from Chameleon Antenn...

Page 21: ...tions 91st Edition American Radio Relay League Newington CT 2 1987 Tactical Single Channel Radio Communications Techniques FM 24 18 Department of the Army Washington DC 3 Turkes Gurkan 1990 Tactical H...

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