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ARAH system located between 1/10-wavelength and 1/2-wavelength from the transmitting antenna, 
connected to a transceiver with a receive input using the 

DXE-TVSU-1A

 Time Variable Sequencer 

Unit for proper switching. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for DXE-ARAH3-1P

Page 1: ...izontal Active Antenna Used under US Patent No 7 423 588 DXE ARAH INS Revision 3f DX Engineering 2017 1200 Southeast Ave Tallmadge OH 44278 USA Phone 800 777 0703 Tech Support and International 330 57...

Page 2: ...ion 6 Basic Tools Required 6 Manual Updates and Information 6 Installation 6 Location 6 Active Matching Unit 7 Brass Element Blocks 7 Spacers and Rear Mounting Plate 8 Mounting Mast 9 Ground System 9...

Page 3: ...ted noise interference Most modern LED or LCD flat panel televisions are not broadband noise generators If the noise source is external and single directional in nature using two ARAH antennas in conj...

Page 4: ...0 dBm This is significantly better than most aftermarket preamplifiers and receivers making it one of the cleanest active antennas on the market reducing or eliminating spurious signals Feedline decou...

Page 5: ...sformer 120 VAC 60 Hz to 12 Vdc 500 mA Two element connection wires DXE SSVC 2P V Bolt Mounting Clamps and hardware for mounting Additional Items Needed But Not Supplied Mast mounting pipe DXE F6 75 F...

Page 6: ...pdates and Information Every effort is made to supply the latest manual revision with each product Occasionally a manual will be updated between the time your DX Engineering product is shipped and whe...

Page 7: ...plates are assembled the orientation may be changed by loosening the mounting hardware and moving the brass blocks to the lower holes and re assembling the hardware Turn the black front mounting plat...

Page 8: ...ing plate Figure 3 is used between the saddle clamps and the mounting plate assembly as shown The large holes in the front mounting plate Figure 2 are used for tightening the clamp hardware These clam...

Page 9: ...num Ground System The DX Engineering Horizontal Active Antenna system operates independently from a ground system However steps should be taken to properly protect the mounting mechanism tower etc fro...

Page 10: ...RCA phono style plug connects to the receiver antenna input See Appendix A for Radio Interface Options Coaxial Cable Feedline Flooded 75 CATV type feedline cable F 6 is strongly recommended for use w...

Page 11: ...rsus gain response The L jumpers change the inductance values and C jumpers change the capacitance values As shipped all jumpers are deactivated Installing jumpers in L1MF L1HF or both will configure...

Page 12: ...per function Bench tests on the DXE ARAH3 1P are normally about 60 mA so with some voltage drop on the line 40 to 50 mA should be okay If the measured voltage at the end of the line is under 11 Vdc th...

Page 13: ...the DXE RFCC 1 Receive Feedline Current Choke will remove common mode signal and noise collected by the shield of the feedline in order to realize normal signal to noise improvements available from a...

Page 14: ...Every radio manufacturer and every amateur radio operator s location is different The following is only a suggestion and you should consult your radio manufacturer s manual for details and further re...

Page 15: ...15 ARAH system located greater than 1 2 wavelength from any transmitting antenna connected to a transceiver with a receive input...

Page 16: ...system located between 1 10 wavelength and 1 2 wavelength from the transmitting antenna connected to a transceiver with a receive input using the DXE TVSU 1A Time Variable Sequencer Unit for proper s...

Page 17: ...able preparation Connector to cable retention of 40 lbs minimum Superb impedance match to 1 GHz Manufactured of high quality 360 brass cadmium plated for maximum corrosion resistance UV resistant plas...

Page 18: ...ammed from 300 to 1000 Hz in 50 Hz steps front panel headphone jack with adjustable volume Supports CW full break in Can control external power to our Active Receive Antennas and permit operation in c...

Page 19: ...or grounding Low noise receive antennas are traditionally located away from electrical wiring and other noise sources Unfortunately noise and other unwanted signals have a direct path to your low nois...

Page 20: ...iting The above warranties shall not extend to any products or parts thereof which have been subjected to any misuse or neglect damaged by accident rendered defective by reason of improper installatio...

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