80m and 40m V TYPE DIPOLE ANTENNA FOR AMATEUR RADIO
HFV8040
Operation Instructions
Check 1:Is the antenna too close to
the building wall? If the
obstacles are too close to
antenna, VSWR is higher
and the radiation pattern is
disturbed. Please install the
antenna from the building as
far away as possible.
Check 2:Did you assemble the
antenna correctly? Please
read the instruction again
and reconfirm the assembly.
Check 3:Is the coaxial cable
something wrong? Please
check if soldering the
connector is okay and the
wire breaks by the volt-ohm
meter.
・Parts Description
Parts# Description Qty
M57001 Element A φ102
M57002 Element B φ30 2
M57003 Trap element A 2
M57004 Trap element B 2
M57005 Hat 340mm 8
M57006 Hat S 180mm 12
M57007 Hat SS 80mm 8
M57008 Hat ring 4
M57009 Balun BU50 (with M5 set
screw, spring washer) 1
M57010 Bracket for balun (with
insulation) 1
M57011 Bracket for element A
(with insulation) 2
M57012 Bracket for element B 2
M57013 Fixing plate 1
M57014 U volt set M8 (with nut,
spring washer) 2
M57015 V volt set M6 (with nut,
spring washer) 1
M57016 Tapping screw M4x8 12
M57017 Tapping screw M5x20 2
M57018 Hexagon volt M6x25 8
M57019 Internal tooth lock
washer M4 12
M57020 Internal tooth lock
washer M5 2
M57021 Nut M6 8
M57022 Spring washer M6 8
M57023 Lead wire 2
M57024 Self-melting tape 1
roof of a house or top of a
building, look around the roof to
see if there are any obstacles
such as an electronic wire or TV
antenna. The HFV8040 has to be
located as far away as possible
from those things to obtain its
maximum performance. Installing
the antenna too close to the
building wall may cause bad effect
for electrical characteristics of the
antenna.
②Don’t install the antenna where is
easily reachable by people.
③Install the antenna firmly not to fall
down due to the strong wind. Even
if falling down the antenna, locate
the antenna at the safe place
where people and building are not
inflicted injures.
<<Before transmitting>>
Transmit after confirming if the
antenna works normally by an SWR
meter.
<<During transmitting>>
Touching the antenna during
transmission may cause to electrify.
Pay attention not to touch the
antenna especially for children if
installing on a balcony railing.
<<Rumbling Thunder>>
The thunder seems to rumble in the
vicinity, don’t touch the antenna and
coaxial.
When you don’t use the radio, take
off the cable from the radio.
<<If there is something wrong, stop
transmitting immediately>>
Keeping transmitting with high
VSWR may cause the radio to be
damaged.
Stop transmitting immediately and
check the following matters. If it
doesn’t solve the problem, please
ask the dealer or Diamond Antenna
Corporation.
[Condition: If the antenna doesn’t
seem to receive well or propagate
well]
To use this antenna properly, read
this instruction thoroughly before
using it, Keep this manual carefully at
hand for later use.
・Description
①HFV8040 is a reduced type V
dipole antenna for 80m and 40m.
②Compact, light weighted and very
easy to assemble.
③To adjust the frequencies is
possible to change the hats and
places.
④HFV8040 can be used at
3.5-3.8MHz / 7-7.2MHz.
⑤HFV8040 is a V type dipole
antenna (90 degree fixing).
・Instruction for use
Impedance of HF dipole antenna
could be changed depending on
the installation place or
surrounding situation.
It is OK if SWR is less than 1.5.
However, it might be difficult to
make SWR less than 1.5 according
to the situation.
The frequency range of reduced
scale type antenna is restricted.
We recommend using an antenna
tuner together with this product.
SWR might be higher if there are
other antennas or the mast at the
cove of V-dipole antenna.
-Note--------------------------------
<<Installing the antenna>>
①Don’t install on a rainy or windy
day since it is dangerous.
②Don’t attempt to install the
antenna only by yourself. Installing
the antenna alone on the roof may
lead you dangerous accident.
Always ask your friends for help
installing the antenna.
③Don’t drop the antenna, tools and
attachment when installing the
antenna in the height. Install the
antenna before assembling it on
the ground.
<<Antenna location>>
①If the HFV8040 is located on the
