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Introduction 

 
The classic Butternut HF2V vertical antenna operates on 80 and 40 meters. Designed with 
corrosion-resistant aluminum tubing, this 32-foot tall antenna is very durable and attractive.  
Optimize your performance on 80 & 40 meters.  
 

Features 

 

Band coverage for 80 and 40 meters 

 

Height is 32 feet 

 

Weight is only 13 pounds 

 

Feedpoint Impedance is a nominal 50 ohms and uses a coaxial cable connection at the 
antenna base 

 

Power handling up to 1,500 watts - full legal limit on both bands 

 

Will handle 60 mph winds (no ice) - higher winds with guying 

 

Bandwidth for VSWR 2:1 or less: 40 m - entire band. 80 m is 90 kHz 

 

Active element length on 80 & 40 meters is 32 feet 

 

Requires radial system  

 

Please

 - Read the entire manual to become familiar with the construction of the Butternut HF2V 

vertical antenna. This manual does follow the ‘classic’ design and construction methods. However, 
throughout the manual information has been added that varies from the ‘classic’ design by adding 
newer options that you may want to consider when installing your Butternut HF2V. 

 
WARNING! 

 

INSTALLATION OF ANY ANTENNA NEAR POWER LINES IS DANGEROUS 

 
 
 

Warning

:

 Do not locate the antenna near overhead power lines or other electric light or power 

circuits, or where it can come into contact with such circuits.  When installing the antenna, take 
extreme care not to come into contact with such circuits, because they may cause serious injury or 
death.  
 
Before you begin working, check carefully for overhead power lines in the area you will be 
working.  Don't assume that wires are telephone or cable lines; check with your electric utility for 
advice. Although overhead power lines may appear to be insulated, often these coverings are 
intended only to protect metal wires from weather conditions and may not protect you from electric 
shock. Keep your distance! As a suggestion, remember the 10-foot rule; when carrying and using 
ladders and other long tools, keep them at least 10 feet away from all overhead lines - including any 
lines from the power pole to your home. 

 

There are parts made from fiberglass in this kit. Take normal precautions when handling any 
fiberglass material. There may be fiberglass dust, slivers or particles present when the fiberglass 
parts were manufactured. The use of typical fiberglass handling safety gear (gloves, dust mask, eye 
shield, clothing, etc.) when handling and working with fiberglass is recommended. Use a damp rag 

Summary of Contents for HF2V

Page 1: ...Band Vertical Antenna BUT HF2V BUT HF2V INS Revision 4 Butternut 2019 1200 Southeast Ave Tallmadge OH 44278 USA Phone 800 777 0703 Fax 330 572 3279 Artists rendition of an installation Tech Support and International 330 572 3200 ...

Page 2: ...ES IS DANGEROUS Warning Do not locate the antenna near overhead power lines or other electric light or power circuits or where it can come into contact with such circuits When installing the antenna take extreme care not to come into contact with such circuits because they may cause serious injury or death Before you begin working check carefully for overhead power lines in the area you will be wo...

Page 3: ...l antennas may sustain damage or fail altogether With the small amount of effort needed to install a four point guying system the risk hardly seems worth taking A four point guying scheme provides the best mechanical advantage to reduce wind stress regardless of direction Information on guying the Butternut HF2V is included in this manual Site Selection Ideally select a mounting location clear fro...

Page 4: ...ercome unknown poor soil conditions improve bandwidth and ensure the best performance efficiency possible from the Butternut HF2V antenna Radial Wire that is 14 gauge stranded copper with black relaxed PVC insulation wire is suggested for the best results DXE RADW 32RT or 65RT Radial Wire Kits The wire radials should be placed as symmetrically as possible straight from the feedpoint around the ver...

Page 5: ... machined are referred to as burrs and the process by which they are removed is known as deburring The aluminum tubing is machine cut on both ends and machine slit on one end You should further assure that there are no ragged edges or protrusions 2 Clean the inside of the aluminum tubing to clear out any dirt or foreign material that would cause the aluminum tubing sections to bind during assembly...

Page 6: ...INTER THE FIBER ROD INSULATOR AND COMPLICATE INSTALLATION 3 Slide the insulator on 40 meter tube B1 into the top of base section B and secure with a 8 x 1 1 2 bolt 8 lock washer and 8 hex nut The antenna will be mated to tube A and the other insulator along with the red coil Q in a later step in the assembly NOTE The top of base section B has the mounting hole located 1 4 from the end In all subse...

Page 7: ...MENT ON THE BASE SECTION Note Jet Lube SS 30 Anti Oxidant should be used between all antenna element sections Jet Lube SS 30 is an electrical joint compound to affect a substantial electrical connection between metal parts such as telescoping aluminum tubing or other antenna pieces It ensures high conductivity at all voltage levels by displacing moisture and preventing corrosion or oxidation Jet L...

Page 8: ... and 8 hex nut 14 Raise tube assembly G through M vertically and slide the lower end of tube G into the upper end of 40 meter tube B1 Align the holes of tube G with those of 40 meter tube B1 pass a 8 x 1 1 2 bolt through the holes and tighten securely with a 8 lock washer and 8 hex nut NOTE DURING THE FOLLOWING STEPS PLEASE REMEMBER THAT A DIFFERENCE IN POTENTIAL MAY EXIST BETWEEN COAXIAL LINES CO...

Page 9: ...a short piece of copper strap from the radial plate to the lower connection of coil Q mounted on tube A of the HF2V or the optional BUT MPS Mounting Post Sleeve In either case a ground wire attachment from the lower tube A to the Radial Plate should be made to ensure a good RF connection The DXE RADP 3 has a mounting area for an optional dual SO 239 This is can used with a short connecting coax ca...

Page 10: ...uld be tapped down along the 40 meter coil so that four full turns are shorted out Secure it with 8 x 3 4 bolt 8 lock washer two 8 flat washers and 8 hex nut The other shorting strap if needed may be attached to the lower clamp of the 80 meter coil and tapped upward along the coil for decreased inductance Secure it with 8 x 3 4 bolt 8 lock washer two 8 flat washers and 8 hex nut With no top loadin...

Page 11: ...coil Q may be viewed as a step up transformer that will match the lower impedance at the feedpoint to the characteristic impedance of the feedline and proper adjustment will produce SWR of close to unity in those cases where the earth loss resistance is sufficiently low to keep the feedpoint impedance below the characteristic impedance of the cable used If earth losses are unusually great as in de...

Page 12: ...should be avoided regardless of its strength rating because it can stretch as much as 15 Polypropylene rope or even nylon rope may also be used although the former should be checked periodically for signs of weather deterioration The wire suggested for elevated radials is a 14 gage stranded copper with a black relaxed PVC insulation The relaxed insulation makes handling the wire easy since it will...

Page 13: ...to support itself Operation of the HF2V may be extended to the other bands through the addition of accessories without sacrificing 80 and 40 meter performance Butternut HF2V Parts List Ref Description Qty A Tube A with Insulator 1 1 4 dia x 24 long 1 B Tube B element 1 1 4 dia x 48 long 1 B1 Tube B1 with Insulator 1 1 4 dia x 14 long 1 C Coil Assembly 80 40 Meters 1 D Capacitor Assembly 80 Meters ...

Page 14: ... 13 Butternut HF2V Detail Drawings Not Scale ...

Page 15: ...etain a slight amount of slack and do not come off at too steep an angle At angles of less than 45 degrees the guys begin to exert a downward compressive force on the structure that can be more of a threat to survival than lateral wind loading on an un guyed structure Under no circumstances should guys be placed higher than one third of the way up the antenna The upper two thirds of the HF2V has l...

Page 16: ...ial or workmanship Butternut shall upon prompt notice thereof issue shipping instructions for return to Butternut transportation charges prepaid by Buyer Every such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing The above warranties shall not extend to any products or parts thereof which have been subjected to any misuse or neglect damaged by acci...

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