Maspro VU144LK2 User manual

MASter of PROduction
Read this instruction manual carefully before use.
Reception
Channels
European Standard ch.5-12, 21-58
American Standard ch.7-13, 14-63
Chinese Standard ch.6-12, 13-45
VU144LK2
INSTRUCTION MANUAL
For Horizontal
Polarization only
75Ω
Corner Reflector
MASPRO’s corner reflector reduces double images,
and makes clear pictures.
Multi Dipole
4 Traps can allow to receive wideband (VHF E ch.5~12,
UHF E ch.21~58) with one dipole only.
Aluminum Boom
Aluminum boom is light yet sturdy.
Assembled Coaxial Cable to Multi Dipole already
14m coaxial cable was assembled to multi dipole,
which makes installation of antenna easily.
Corner
Reflector
Multi Dipole
Boom
NOTE Skills and experience are required to install antennas on roofs or other elevated
locations. Make sure to consult your installer concerning installation.
Coaxial Cable
(Assembled to Port of Multi Dipole)
Antenna Installation Precautions
¡Be very careful to install antenna at the safest spot possible, so
that parts of the antenna will not cause injury or property damage
if they fall.
¡To prevent electric shock accidents, install the antenna as far
away as possible from wires (powerlines, high voltage wires,
telephone lines) so that it will not come into contact with the wires
even if it falls.
¡Never attempt installation on rainy or windy days. Be extremely
careful also when working under a scorching sun in summer, as
the roof can become very hot.
¡Take necessary safety measures before installing antenna, e.g.
binding the antenna, mounting dipole, and tools to prevent them
from dropping.
¡Working at elevated locations is extremely dangerous. Take all
safety measures possible before installation. When you are on the
roof, you may experience vertigo or experience an exaggerated
sense of height, your feet may become shaky and your footing
unstable. Take special care to avoid slipping.
¡Make sure to remove TV and/or Tuner AC plugs from AC wall
outlets when you connect 75Ωcoaxial cable from TV and/or Tuner.
If plugs remain in outlets, electric shock may occur.
¡Do not install the antenna and guy wire by yourself. Make sure that
someone, or preferably two or more people, are present to assist
you.
¡If you hear thunder, do not touch antenna, cable and another
accessories to fix them. It may cause shock.
¡After a typhoon, check the antenna, mounted dipole, mast, roof
mount, and guy wires for any signs of trouble or loosened bolts and
nuts. Replace damaged or bent antenna with a new one. If you
neglect damaged antenna or leave them without proper
maintenance, parts of the antenna and mounting dipole may
become damaged and drop, causing physical injury or property
damage.
¡Be careful not to use a rusty or corroded antenna and mounting
bracket. Weak or damaged equipment may loosen and drop,
resulting in physical injury or property damage.
VHF/UHF ANTENNA
HIGH PERFORMANCE
for Home Use
Trap Trap
UHF
VHF
1

Assembly
Corner Reflector
Multi Dipole
Fixing Cable
ToTVor
TVoutlet
Boom
Adaptable mast diameter
22 ~ 38.1mm
Front
Front
Front
1
Openfoldedcornerreflectortillknobbybossof
pointAfitsintoholeofpointB,thendonot
openanymore.
2Tightenwingnutup.
After installing multi dipole along the
direction of arrow shown on top of
cover to the front direction, then
tightenwingboltup.
Fixcoaxialcabletothemastwith
vinyltape.
Loosen wing nuts, after passing mast,
tightenwingnutsfirmly.
Wing bolt
For diameter
22 ~ 38.1mm
Mast
(sold separately)
Check the direction of boom and elements carefully
and firmly tighten wing bolt and wing nuts.
Wing nuts
Mast
Coaxial cable
Vinyl tape
Mast
Mast Fixing Clamp
Front
B
A
Wing nut
Available in
the market
Installmultidipoleascoverupward.
NOTE
2

How to Install Another Cable
Cable processing
¡If possible, use 5C2V coaxial cable, or other cable which has either equaling or surpassing performance.
¡Remove assembled weather boot connected to dipole port, then pass cable through weather boot again.
(Process cable tip after getting cable through weather boot.)
Connection to Multi Dipole
Fold back
braided wires
Braided wires
Weather boot
Coaxial cable
(5C2V)
Cover
4
Weather boot
Coaxial cable
Tuck weather boot
onto cable entrance
of multi dipole base
absolutely.
DO NOT bind vinyl tape
onto weather boot, rain
drops occurs trouble.
1Insertcenterconductorunderretainerplate.
2Fixthefoldedouterconductor(braidedcopperwire)with
screw for fixing outer conductor, and tighten it at the
torquevaluebelow.
3Fix the center conductor of cable with screw for fixing
centerconductoratthetorquevaluebelow.
1Open the cover of multi dipole, then install
coaxial cable.
2After installing coaxial cable, close the
cover firmly.
Retainer plate of
center conductor
Center conductor
Screw for fixing
center conductor
¡Tightening torque value
0.4N·m
(4.1kgf·cm)
Screw for fixing
outer conductor
¡Tightening torque value
0.4N·m
(4.1kgf·cm)
Shut the cover of multi dipole with a snap after connecting cable.
Use assembled
weatherboot to
multi dipole at
shipping.
13mm (Actual size) 9
3

MASter of PROduction 2K56-470 LA (N).17-5470-2C
JUL., 2011
0094-11-2895584 0094-11-2855572
30˚
0˚
3dB
10dB
20dB
Beam Width
Half Power
0˚
180˚
30˚
150˚150˚
3dB
3dB
10dB
10dB
20dB
20dB
Beam Width
Half Power
30˚ 30˚
Performance
All graphs are produced using MASPRO's original,
fully-automatic antenna measuring device.
MASPRO's performance data is obtained with
painstaking honesty and is completely reliable.
MASPRO guarantees the accuracy of its performance
data.
Directivity
Half Power Beam Width
The narrower the beam width,
¡The less likely it is that the antenna
will genarate interference through re-
flected signals from the front.
¡The higher the actual gain produced.
Front-to-Back Ratio
Front-to-back ratio is the ratio of the
forward and backward sensitivity in dB.
The larger the front-to-back ratio, the
less likely it is that the antenna will
genarate interference through reflected
signals from the back.
Reception Channels
Items
Number of Elements
Impedance
Gain
VSWR (Voltage Standing Wave Ratio)
Front-to-Back Ratio
Adaptable Mast Diameter
E ch.5 - 12
A ch.7 - 13
C ch.6 - 12
E ch.21 - 58
A ch.14 - 63
C ch.13 - 45
Specification
75Ω
1
2 - 1dB
―
1030（L）
× 650（W） × 250（H）mm
4.5 or less
22 - 38.1mm
Dimensions
Approx. 660g
Weight
Half Power Beam Width
65 - 90˚
Specifications
Directivity is indicated by front-to-back
ratio and beam width.
14
4.5 - 9dB
10 - 20dB
3.5 or less
25 - 65˚
E ch. 40 Half Power
Beam Width
46˚
E ch. 9 Half Power
Beam Width
80˚
5
4
3
2
1
25
20
15
10
5
0
470
dB dB
dB
Front-to-Back Ratio
VSWR
Gain
E ch.
A ch.
C ch.
174167 230MHz
56789101112
E ch.
A ch.
C ch.
774MHz
774
770
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
13
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Specifications and external design are subject
to change for further improvements.
12
10
8
6
4
2
0
2
4
167 223
78691011 12
78910111213
4