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DXE-FVC-1 - Feedpoint Voltage Coupler 

The FVC-1 provides an interface for standard control switches, such as the DXE-CC-8A or your own arrangement to voltage-
multiplexed antenna systems. This interface system will provide the voltages required to remotely select up to four antennas (or four 
directions) through receiving or low power transmitting feedlines. It provides fuse-protected 0V, +12 
Vdc, -12 Vdc, and 12 Vac. output voltages through a panel mounted feedline connector. These voltages 
can be used to provide four-direction switching of an antenna array either through the feedline or on a 
single wire supplemental control line. Control is done using a standard 1 of 4, BCD or switch closure 
interface.  
 
The FVC-1 is recommended for use with the DX Engineering RFS-2P Remote Four-Square Antenna 
System 
, the RBS-1 Reversible Beverage Antenna System , and the RLS-2 Transfer Switch . The CC-8A 
Control Console 
can provide the 1 of 4 and BCD input used by the FVC-1 or you can use your own 
switch. The FVC-1 also has two LED indicators, red and green, which indicate the presence and polarity of the output control voltage 
being used. They are directional indicators that can be read at a convenient distance and can aid in troubleshooting.  
Features  

 

Safe, external 12V heavy duty power pack.  

 

Metal Housing – superior shielding, rugged, and easy mounting  

 

Convenient installation– mounts anywhere in your shack  

 

Rugged Control Connector – reliable solder-less connections  

 

Internal thermal reset fuse- full protection against accidental shorts  

 

Flexible logic input- BCD or standard one-of-four, high or low actuated  

 

Operation indicators- bright red and green LED indicators can be seen at a distance  

 

 

DXE-CAVS-1P - V-Bolt Saddle Clamp, 1/2 in. to 1-3/4 in. OD Applications

 

This V-Clamp is made in one size that fits tubing from 1/2 to 1-3/4'' OD as used in antenna construction. The supplied V-bolt is long 
enough to attach tubing to thick plates and is made with anti-corrosive properties. The cast rippled surface of the saddle will clamp 
the tubing securely to a flat surface; however, for high-torque applications please use our standard U-Bolt Saddle Clamps.  

 

Used to clamp 1/2 to 1-3/4'' (OD) tubing  

 

Designed for attachments that don't require resistance to torque  

 

V-bolt made from high-strength 18-8* stainless steel  

 

V-saddle cast from 535 aluminum with rippled surface 

The use of an Anti-Seize compound is HIGHLY recommended to achieve proper torque and prevent galling.  
 
 
 

DXE-SSVC-2P  -  Stainless Steel V-Clamp for 1 to 2 inch OD steel pipe

 

This V-Clamp is made in one size that fits Steel tubing or pipe from 1 to 2'' OD as used in antenna construction. The supplied V-bolt 
is long enough to attach tubing to thick plates and is made with anti-corrosive properties. The special Stainless Steel saddle has 
serrated teeth will clamp to the pipe securely by biting into the surface.  For this reason, it is not recommended for softer aluminum 
tubing or pipe.  Ideal for fastening a radial plate and antenna mounting to a steel pipe. 
V-Bolt thread dimensions: 5/16"-18 x 2.0"  

 

Used to clamp 1 to 2'' (OD) steel tubing or pipe   

 

Designed for attachment to round steel support members  

 

V-bolt and saddle made from high-strength 18-8* stainless steel  

The use of an Anti-Seize compound is HIGHLY recommended to achieve proper torque and prevent galling.  
 
 
 

UMI-81343, DXE-NSBT8  -  Anti-Seize &  Never-Seez  

An Anti-seize compound MUST be used on any Stainless Steel nuts, bolts, clamps or other hardware to prevent galling 
and thread seizure. Any of these products can be used for this purpose. 

*

UMI-81343

 

Anti-Seize, 1 oz. Squeeze Tube

 

*

UMI-81464

 

Anti-Seize, 8.5 oz. Aerosol Can

 

*

DXE-NSBT8

 

Never-Seez, 8 oz. Brush Top

 

*

DXE-NMBT8

 

Never-Seez, 8 oz. Brush Top, Marine Grade

 

 

              * These products are limited to domestic UPS Ground shipping only 

 

 
 

Содержание DXE-RFS-SYS-4P

Страница 1: ...7 423 588 DXE RFS SYS 4P INS Revision 1b DXE RFS SYS 4P Components Shown DX Engineering 2014 1200 Southeast Ave Tallmadge OH 44278 USA Phone 800 777 0703 Tech Support and International 330 572 3200 F...

Страница 2: ...are Layout 11 Diagram 3 Alternate Configuration 30 System Operational Overview 12 DXE RFS 2 and Active Element Power 31 Installation 12 Directional Control 31 Active Antenna Elements 13 Internal Jumpe...

Страница 3: ...nsole allows system operation without AC power mains DXE RFS SYS 4P U S Patent No 7 423 588 is a complete Receive Four Square Array Package which includes 1 DXE ARAV3 4P Package of four Active Receive...

Страница 4: ...ns Features Advantages of the DXE RFS SYS 4P Receive Four Square Antenna System over other receiving arrays include Seamless stainless steel RFS 2 enclosure for enhanced weather resistance Reduced sus...

Страница 5: ...thing that affects the signal to noise ratio An average Beverage antenna exhibits about 6 dB gain You would need two reversible Beverage systems to obtain 4 direction selectivity and you still would b...

Страница 6: ...6 Increasing the array size increases its sensitivity on the lower frequencies sliding the performance curve toward the low frequencies and potentially eliminating the need for amplification...

Страница 7: ...goal is to do the best you can by balancing all the factors 1 10 wavelength is the minimum distance to any transmitting antenna from the Four Square perimeter greater than 1 2 wavelength is the minimu...

Страница 8: ...commended the ground height difference between any element in the array be less than 10 of the array diameter For example a 60 foot diameter array should be within six feet of level Every effort shoul...

Страница 9: ...a 3 4 or larger rigid copper water pipe although conventional copper coated steel rods may also work Depending on soil conductivity you can expect better performance with multiple ground rods spaced a...

Страница 10: ...longer than the optimal 98 feet shown for 160m and 80m This will improve 160m performance reduce sensitivity on 80m somewhat but less than sizing the array exactly for 160m Band Freq MHz Optimal Side...

Страница 11: ...if structures radiating even small amounts of noise or signals are within 1 wavelength of the array Measure side to side and then corner to corner to ensure the element locations are square Normally t...

Страница 12: ...wer switching function automatically An alternate configuration refer to Appendix A which uses the feedline coaxial cable for either the operational power or the directional control voltages can be us...

Страница 13: ...e identical jumper settings For access to the jumpers in the active matching units remove the 2 screws on each side of the case and remove the bottom The circuit board and jumper headers will be visib...

Страница 14: ...commodate the size of the array but must all be the same length velocity factor and type Note the orientation and numbering of the elements by using Figure 2 Be sure the appropriate antenna element is...

Страница 15: ...ngth in Feet Diagonal Physical Length in Feet Factored 0 95 Electrical Length in Feet DLY3 Physical Length in Feet 0 85 VF 135 160m 190 9 181 4 154 2 98 160m 80m 138 6 131 7 111 9 70 80m 99 0 94 0 79...

Страница 16: ...mast rather than allowing them to hang from the connectors It is important to use 75 feedline to the operating position from the DXE RFS 2 Do not use amplifiers combiners filters or splitters that ar...

Страница 17: ...ns are shown in Diagram 1 Default Configuration Control lines usually BCD can normally use good quality CAT5e cable 4 twisted pairs of 24 AWG wire for runs up to 1000 feet Typical DX Engineering BCD c...

Страница 18: ...r load A DX Engineering 4 Square or 8 Circle will require approximately 250 milliamps only 4 actives are powered at any one time When calculating line length take into consideration the total number o...

Страница 19: ...gs Figure 5 shows the default jumper settings for the DXE RFS 2 For JMP1 JMP2 the center and top pins of both are shorted For JMP3 JMP4 the center and bottom pins of both are shorted Figure 5 Jumper L...

Страница 20: ...20 Diagram 1 Default Configuration for the DXE RFS SYS 4P Shown with optional items Power connections not shown for clarity...

Страница 21: ...the least gain possible Depending on conditions a preamplifier can cause receiver overload this may require an attenuator or bypassing the preamplifier The DXE RPA 1 HF Preamplifier has better dynami...

Страница 22: ...nto modern transceivers The Receive Four Square array pattern is designed to enhance forward low angle signals and reject rearward and high angle signals The Receive Four Square system provides superi...

Страница 23: ...s on the units and the urine will corrode and damage electronics Insects getting inside units and shorting out electronics A Broken and or shorted conductors due to animal weather or other damage incl...

Страница 24: ...aged by an animal that relieved themselves on the antenna whips and AVA units as if they were trees The above items are the most common failure points in the system that need to be checked If necessar...

Страница 25: ...l voltages on the connected control line will cause relays to switch inside the RFS unit If switching voltages are correct lack of system directivity or gaps in reception may be due to antenna feedlin...

Страница 26: ...e RF If one or more Active Receive Verticals produce a low or no signal then the AVA unit at the base of that antenna may not be receiving power Retest for DC power at the antenna end of that feedline...

Страница 27: ...nfiguration requires changing the internal jumpers from their default settings Be very careful about changing the default jumper settings You must not jumper the DXE RFS 2 so that power and directiona...

Страница 28: ...edline for directional control then you must provide power for the DXE RFS 2 using terminal C of the J12 connector Terminals A B are not used A single conductor cable is needed to power the DXE RFS 2...

Страница 29: ...onfiguration All Element feedlines delay lines and station feedlines must be 75 coaxial cable RFS 2 internal jumper changes are required Element feedlines can be any length but must be equal Power lin...

Страница 30: ...ected to the optional DXE FVC 1 for directional control All Element feedlines delay lines and station feedlines must be 75 coaxial cable Requires RFS 2 internal jumper changes Element feedlines can be...

Страница 31: ...s a 2 bit 12 Vdc BCD interface scheme to switch directions through a user supplied 4 conductor cable connected to the DXE EC 4 The default direction without applied control voltage is in the direction...

Страница 32: ...f both are shorted Figure 5 Jumper Locations showing Default Settings JMP1 Selects Power Voltage Source Coax or J12 Shown in default position voltage from J12 JMP2 Selects Direction Voltage Source Coa...

Страница 33: ...tially reduce unwanted feedline radiation or reception without the need for improved station grounding The advantages of using an FCC Prevents unwanted RFI by eliminating feedline current and radiatio...

Страница 34: ...that fits tubing from 1 2 to 1 3 4 OD as used in antenna construction The supplied V bolt is long enough to attach tubing to thick plates and is made with anti corrosive properties The cast rippled s...

Страница 35: ...e handle and listen for the click That s the sound of another perfect wire stripping job performed in about 2 seconds a fraction of the time it takes your pocket knife to do the same job An adjustable...

Страница 36: ...ts are claimed to be defective in material or workmanship DX Engineering shall upon prompt notice thereof issue shipping instructions for return to DX Engineering transportation charges prepaid by Buy...

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