Wideband HF Antenna User Manual
Contents
1. Tipical SWR performance Reference level 0dB HP 8920868 RF Cammunications Test Set 01 09 01 09 54 00 am 300 kHz Generator sweem truncated i NECS E DID iy US de VO MN JE D MGE dM ge ere MS 1 re 15 000000 SPECTRUM ANALYZER a fiiis antrals er el Main 20 0 RF In Ant dBm i z Figura 7 Typical SWR Performance Measure level 20dB return loss average Elbi Wideband HF Antenna papers User Manual Page 10 of 15 6 1 Whip assembly All models of antennas are delivered with the Whip divided in 2 sections The first operation to be done at installation is to assemble the 2 sections by means of suitable threaded joints Elbi Wideband HF Antenna land and C4 User Manual Page 11 of 15 6 2 Roof Mount Model The FAA5522B is the roof mounting model it is provided of a suitable stainless steel brackets which allows the installation through an extension pole or mast This method is always the best if the supporting pole diameter 58 5mm 5 not supplied is height enough to guarantee an average height of the antenna of not less of 6 to 10ft 2 3m above surroundings buildings Optionally the antenna can be mounted directly to the wall using an opportune adapter bracket not supplied The contents of the delivered package is shown below Fig 8 FAA5522B parts included in the delivery package The package is compr2. e Connection to TX 50 Ohms coax cable recommended RG 213 U Ground Yes Elbi Wideband HF Antenna land and C4 User Manual Page 6 of 15 5 4 Working Principle The wideband HF is whip antenna intended for use with ALE capable transceivers for HF communication Although no external tuning is necessary for operation over the 3 to 30 MHz band an ATU Antenna Tuner Unit can be used to improve SWR ratio By the way working principle is based on unique method of coupling transmission line transformers A detailed analysis of the impedance adapter network revealed that 1t actually consists of two separate transformers with inter coupled windings This technique is used in conjunction with a single feedback winding on one of the transformers The overall result is a complex design that form a network which improves the match at specific frequencies introducing where necessary an additional series impedance 5 5 Physical layout The basement of the 10 meter self supporting whip is mounted on a U shaped special grade stainless steel sturdy plate see Fig 9 and Fig 11 The impedance adaptor along with toroidal transformers is mounted in a aluminum enclosure with integral heat sink see Fig 12 Elbi Wideband HF Antenna land and C4 User Manual Doc N FAA5522B 23B Page 7 of 15 5 6 Radiation Patterns The typical vertical radiation patterns on several frequencies of the HF spectrum is provided in Fig to In this case the an
3. Se HF Antenna ad and CY Se Manual Doc N FAA5522B 23B Page 1 of 15 Wideband HF Antenna User Manual 25 12 2011 o Elbi Wideband HF Antenna land and C4 User Manual Page 2 of 15 INDEX INDEX t 2 1 PURPOSE OF MANUAL rc ais 3 2 UEBERENCESPECIEICATIO NS yii ONA AEE LD Doi hE Ea a E So S a i e hh ap E EE 3 ATTACHED DOCUMEN ES SSSR O OD n toa DE e SD DD a a a 3 A SAFETY INSTRUCTIONS SSO DD O 4 PRODUCT DESCRIP TION resi EEEE AAE EE ENEE EEE EEE EEEE 5 5 1 PECE T REN A E E a 5 2 IVE er qa SENI NEN m 5 5 3 ey LOL QS 4 mmm 5 5 4 WORKING T RI CITT E a S E E e ea a 6 5 5 GS E OU 6 5 6 RADIATION do MR m Tnm 7 EN D FEY TION Poe 9 6 1 era M ew A ODI E 11 d Mounting Usinge Extension POl E 12 De Drect V a MOUNE a cassette SEES OEE lace ep as 13 6 2 NAVAL MOUNT VERSION MN RENE 14 6 3 ELECTRICAL CONNECTION G 2522155299505 045 9 nonii aan Eee i eiri ee sch st bse bE e 15 Elbi Wideband HF Antenna papers User Manual Page 3 of 15 1 Purpose of Manual This manual describes all the features and technical sp
4. arantees low radiation angles Mounting too close to a house 30ft or less is less recommended This results in an inferior radiation pattern and more importantly a heavily increased noise level from house installations power lines etc Mounting on a mast or tower higher than 10ft results in high radiation pattern up to 60 degrees As with all good antennas the Wideband HF antenna acts to nearby objects such as other antennas lightning protection systems wires etc This is particularly pronounced with items that are closer than one wavelength and longer than 1 2 wavelength at the working frequencies Under these circumstances the antenna can receive its own signal back resulting in increased SWR Thanks to its design the antenna is electrically connected to ground that s for safety and low static noise The base mount needs to be well grounded The diagram below represents a real SWR performance relative to a typical installation on a building roof the average return loss value 1s more than 15 dB or 1 1 4 in terms of VSWR HP 6920868 RF Communications Test Set 01709701 09 53 00 am AHALYZER BiHz3 00 kHz Generator Marker T ERE ENO Re SEARS eens defi effici Frea 153 000000 SPECTRUM rr puc quur 1 asesgyeuusnsuunnyunonsennnaponnnnnnua Controls Ref Level Span z 30 000000 dB MHz Figura 6
5. ear area where dropped hardware may be easily recovered Consult the parts pictorial page and parts list below Elbi Wideband HF Antenna land and C4 User Manual Page 5 of 15 5 Product Description The Wideband HF antenna 1s a relative high efficiency broadband vertical radiator intended for use with frequency agile transmission systems over the 2 30 MHz HF band 1 HF ALE systems It is produced in two different versions respectively FAA5522B for the roof mounting solution and FAA5523B for naval mounting solution 5 1 Highlights e Minimal maintenance requirements High Reliability e Broadband a decade frequency interval typical e No tuning devices SWR 1 1 5 typical on entire bandwidth e 50 ohm coax feed line a MIL quality RG 213 U is suggested e RF power 1 5 kilowatt P E P 500 watt average e Rugged fiberglass element and steel mounting for harsh environment 5 2 Mechanical Features Length 10 meters Weight 20 Kg e Sections 2 Bottom diameter 57 mm e Antenna structure epoxy fiberglass e Finishing Polyurethane paint Colour grey RAL 7030 e Irradiation element material high Q Teflon line Ferrule material inox steel per AISI 316 e Working temperature 35 C to 80 C e Max wind resistance 180 Km h 5 3 Electrical Features Frequency 2 to 30 MHz Impedance 50 ohm e Polarization Vertical e Horizontal radiation pattern 360 e Vertical radiation pattern See diagram
6. ecifications for the wideband HF antenna furthermore contains detailed information necessary for installation and operation Such manual is intended both to radio operators as well as service and maintenance technicians putting into service the antenna connected with other units 1 e hf SSB transceivers 2 Reference Specifications MIL STD 461E Requirements for the Control of Electromagnetic Interference Emissions and Susceptibility MIL STD 810F Department of Defense Test Method Standard for Environmental Engineering considerations and Laboratory 3 Attached documents Model Title FAA5522B Roof Mount Antenna FAA5523B Naval Mount Antenna Elbi Wideband HF Antenna land and C4 User Manual Page 4 of 15 4 Safety Instructions Warning At no time during assembly installation adjustment or operation should any part of this product be allowed to come into contact with electric power line Nor should this product be installed in such a way that any part of it may contact power line during normal operation or in the event of structural failure Failure to exercise extreme care in this matter can result in damage property personal injury or even death Caution Some parts of the equipment become very hot and will cause burns if accidentally touched Warning during installation Antenna installation is very easy make sure that all parts and hardware are present before beginnig the assembly and installation Work in a cl
7. ehensive of the following parts Horizontal Bracket type A 2 Whip Bracket type B one is supplied already fitted to the Whip and Tuning Unit Two section 5 meters lenght of Fiberglass Whip whit Tuning Adaptor box 8 Special Nuts 8 M10x30 screws 8 MIO lock washers ae Elbi Wideband HF Antenna Land and C4 User Manual Page 12 of 15 a Mounting Using Extension Pole Mount the bracket to the Mount the whip tuning unit assy to the extension pole bracket Fig 9 Mounting using Extension Pole You must follow step by step the procedure described below 1 Check presence of extension pole not supplied installed as required in paragraph 6 1 Install as shown in step 1 of Fig 10 the Horizontal Bracket on top of the pole by means of 4 Special Nuts and 4 screws 3 Assure as shown in step 2 the of Fig 10 Whip Tuning adaptor using the supplied hardware as shown in the precedent step Elbi Wideband HF Antenna Land and C User Manual Page 13 of 15 b Direct Wall Mounting By means of a suitable Wall bracket not supplied orderable with P N FAA5522B you can install the antenna directly on the wall 1 2 3 Assemble the Horizontal Secure the bracket to the wall Mount the whip tuning unit assy to the bracket with the Wall bracket bracket Fig 10 Direct Wall Mounting You must follow step by step the procedure described below l As shown in the figure above it is necessary to assemble
8. tenna is mounted on a building roof LZ sc c S ELSE 80 LIS ESSET SN LESSON NY SHEN aaa SSO KK S 120 en a Sy KOA SN N 60 PAS h SNN 3 REIS CP LEE ras beso AAT f Sy QXXAXN Ver LL cane LLL AC cell 1 S NS E S ui 120 Fig 4 Pattern radiation F 20 MHz PE EE SORS EEE AAC 109 8 7 8 54 3 2 10 12 3 4 56 7 8 919 90 WS SS ict CL m 1 toe Tn Wy Sy I d x lt gt QUEE SC Fig 5 Pattern radiation F 26 MHz Elbi Wideband HF Antenna papers User Manual Page 8 of 15 6 Wideband HF Antenna User Manual Doc N FAA5522B 23B Page 9 of 15 Land and Installation As with all antennas great care should be exercised in the choice of a site for the Wideband HF antenna pattern radiation as well as operating bandwidth and SWR can be greatly influenced by the antenna proximity to the earth and other conductors The ideal mounting for the Wideband HF antenna is 6 to 10ft 2 3m above ground as far away as possible from reflecting metal objects A flat roof on a concrete building is also good This gu
9. the Horizontal bracket with the Wall bracket not supplied 2 Secure the Wall Bracket to the wall in the most appropriate way 3 After step 2 you need to assure the whip tuning adaptor assembly to the Wall Bracket by 4 Special Nuts Elbi Wideband HF Antenna papers User Manual Page 14 of 15 6 3 Naval Mount Version The FAA5523B model is the marine version of the wideband antenna and 15 fully assembled with a special mounting basement suitable for ship deck floor installation Because of its design mechanical installation is very easy therefore is sufficient to secure the antenna basement to the ship deck floor previously prepared Figura 10 Naval Mounting model Elbi Wideband HF Antenna Land and C4 User Manual Page 15 of 15 6 4 Electrical connections The antenna electrical connections are located at the bottom of the Tuning Unit as shown in the figure below The feeding input is the N connector female The ground connection is represented by the M6 screw with wing nut and lock washer RF INPUT FEMALE N TYPE CONNECTOR GND STUD Figure 11 Electrical Connections
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