Electrical - EA1DDO

1 This two-element, tri-band quad operates on 10, 15,and 20 meters. The choice to two band settings:phone and CW, presents low VSWR across eachsegment with broadband swaged aluminum tubing speraders offerstrength and durability, and are free of patterndistortion effects. The spreaders are broken atstrategic Electrical points with high impact-cycolacinsulators and are completely free of "RF" and patterndi t tiff tThe Driven Element is at DC ground to eliminatestatic noise and to provide lightning pretuned gamma matches offer closed loop feature decreases static swaged tubing and vertix-feed combine toprovide mechanical stability. The cast aluminum tilt-head boom gives strength and offers a choice of preset speader arms are drilled for easyassembly. You only need to measure the elementOne transmission line feeds all three bands.

2 RG-8/auoffers minimum cable loss and full legal powercapabilities. If your cable run is less than 60 feet andpower doesn't exceed 200 watts use RG-58 the best height for your installation. Heightabove the ground determines the angle of radiation(the lower the angle, the greater the range).For best results, install the Hy-Quad at least 45 feetabove the ground and 8 to 10 feet above your toweror site should be clear of any objects of a large,conductive mass which tend to shift antennaresonance, affect the VSWR, and distort the : To prolong the life of this product in or aroundcoastal areas, it is recommended that all hardware beencapsulated with a silicone rubber compound suchas Dow-Corning silastic rubber or GE silicone seal toprevent atmospheric impedance (nominal).

3 52 ohmsForward 10 meters dB; 15 meters dB;20 meters dBFront-to-back ratio .. 25 to 35 dBdepending on Electrical heightMaximum power input .. 1 kw AM, 4 VSWR at resonance .. :1 or betterLightning protection .. DC groundStudy the manual and familiarize yourself with theillustrations. Check the parts against the parts : When unpacking your antenna, check theinside of all tubing for parts (clamps, insulators,smaller tubing etc.). To conserve space, these smallerarticles are sometimes put inside the larger : All tubing supplied with the Hy-Quad isdesigned to telescope together. It is held in place withtwo #10 x 3/8" self-tapping screws. All tubing lengthsare predrilled for your convenience. For optimumoperation, all element-to-wire dimensions should befollowed by 1/8".

4 The size of this antenna requires consideration as tohow you are going to get it to the top of your tilt-head boom-to-mast bracket (see Figure 35)facilitates assembly of the antenna in halves. Thereare two installation methods:Method 1 - Completely assemble the antenna on theground and hoist it into position as shown in Figure 2 - Assemble the antenna on the ground inhalves, then hoist each half up the tower and attachto the boom-to-mast bracket on the best method is to assemble the antenna in halveson the ground. When this is done the reflector anddriven element spreaders must be in the same the boom to the boom-to-mast bracket andassemble the sperader arm to boom bracket on theboom. MAKE SURE THE DRIVEN ELEMENT ANDREFLECTOR BRACKETS ARE IN THE SAME PLANE. Nowseparate the antenna in halves and complete theassemblye.

5 Driven Element Spreader Arm Assembly Horizontalf. Assembly of Spreader Arms to Boom Sectionsg. Compression ClampAssembly h. Element Assemblyi. Phone By-PassWires j. ElementTensionk. Gamma MatchAssembly I. BoomHorizontal( ) Both ends of the horizontal spreader arms areassembled in exactly the same way. For simplicity, theassembly procedures for only one end will be() Insert the 11/8" x 48" tube into the 1'/4" x 14'5/6"tube. Align the holes and secure the tubes using #10x 3/8" self tapping screws.( ) Select the spreader arm insulators and attach themloosely on the end of the 1 1/8" x 48" tube.( ) Select the tube measuring 1 1/8" x 10" and insert itinto the spreader arm assembly sequence will be described in thefollowing order:a. Reflector Spreader Arm Assembly Horizontalb.

6 Reflector Spreader Arm Assembly Verticalc. Driven Element Spreader Arm Assembly TopVertical d. Driven Element Spreader Arm AssemblyBottom VerticalCAUTIONThe 10" piece of 11/8" tube must be inserted to adepth that allows a 2" space between it and the48" length of 11/8" tube. Once this 2"spacingdimension is assured, securely tighten theinsulator sections together using the 1/4" x 3/4"This concludes the assembly of half the horizontalreflector spreader arm. The other half is assembled inexactly the same ( ) Select a 1'/4" x 14'5/6' tube and a 1'/8" x 48" not interchange the ends. The hole diameters aredifferent and the small holes must be inside the largetubes. Align the holes and secure the tubes using #10lf ti( ) Select the 1 " x 365/8" tubes and slip the end withthe smaller drilled holes into the 1'/8" x 48" tubes.

7 Alignthe holes and secure using #10 x 3/8" self tapping( ) Select the %e" x 24" tubes and slip the unswagedend into the 1 " x 365/8" tubes. Align the holes andsecure with #10 x 3/8" self tapping screws.() Select the 5/8" x 41'5/2' tubes and slip the drilledend into the %8" x 24" tubes. Align the holes and secureusing the #10 x 3/8" self tapping ElementTop Vertical Spreader ArmRefer to Figure 4. Select a 1'/4" x 14'5/,6" tube and a 1'/8" x 48" tube. Slip the 1'/8" x 48" tube into the end ofthe 1'/4" tube. Align the holes and secure using the3f( ) Next, select the 1 " x 365/8" tube, which is drilled forattachment of a tombstone insulator, and insert intothe 1'/8" x 48" tube. Align the holes and secure using#10 x 3/8" self tapping screws.() Select the %e" x 24" tube and insert into the 1 " x365/8" tube.

8 Align the holes and secure using #10 x 3/8"( ) Next, select the 5/8" x 353/4" tube, which is alsodrilled for attachment of the tombstone insulator, andinsert into the %8" x 24" tube. Turn the tube so theholes line up. The hole for the tombstone insulator inthis 5/8" tube must line up with the tombstone insulatorhole in the 1 " x 365/8" tube.( ) Select a 1 " x 323/4" tube and slip the end with thesmaller drilled holes into the 10" piece of 1 1/8" the holes and secure using the #10 x 3/8" selftapping screws.( ) Select the %e" x24" tube and slip the end withsmaller holes into the 1 " x 323/4" tube. Align the holesand secure using #10 x 3/6" self tapping screws.( ) Select the 5/8" x 323/8" tube and slip the drilled endinto the %e" x 24" tube. Align the holes and secureusing the #10 x 3/8" self tapping ( ) This completes assembly instructions on the topdriven element assembly.

9 This should now be marked"Top DE" and set aside for future Vertical Spreader Arm( ) First, select the 1'/4" x 14'5/,6" tube and a 1'/8" x 48"tube, Insert the drilled end of 1'/8" diameter tube intothe drilled end of the 1'/4" diameter tube. Align thehldbi th #10lf ti( ) Select the 1 " x 365/8" tube and insert the drilledend into the 11/8" tube. Align the holes and fastensecurely, using the #10 x 3/e" self tapping the holes and fasten securely.( ) Select the 78" x 24" tube and insert it into the 1 " x36 5/8" tube. Align the holes and secure using #10 x 3/8"screw.( ) Finally, select the 5/8" x 353/4" tube and insert in the78" tube. Again, align the holes and fasten securelyusing the same type hardware as before.( ) Mark this spreader arm assembly "Lower DE" andset aside for future Spreader Arm AssemblyThe last spreader arm assembly is the horizontal armsof the driven element.

10 These too will be assembled inhalves. Both halves are identical, therefore, assembly( ) Select the 1'/4" x 14'5/,6" tube and 1'/8" x 48" the end of the 11/8" x 48"tube into the drilled endof the 1'/4" x 14'5/,6" tube. Align the holes and fastensecurely using the #10 x 3/8" self tapping screw.( ) Select the spreader arm insulators and attachloosely on the end of the 11/8" x 48" tube.( ) Select the tube measuring 11/8" x 14" and insert intothe spreader arm 5. Spreader Arms Grouped and LabeledNOTE: To aid in this part of the assembly, a 3" dia. x 3'length of pipe can be driven in the ground about 1 will hold each boom section in a near verticalposition while the spreader arms are assembled.( ) Select the eight spreader element brackets andloosely assemble using '/4-20 x 3/4" bolts, nuts, andlockwashers, '/4"-20 x V anchor bolts and square nuts,as shown in Figure 14" piece of 11/8" tube must be inserted to adepth leaving a 2" space between it and the 48"length of 11/8" tube.