Komunica PWR-4CROSS User manual

PWR-4CROSS
10m/6m/2m/70cm FM Mobile Antenna
Specifications
Gain
2.15 dBi (10m, 6m, 2m)
5.5 dBi (430MHz)
Power 60W FM
Impedance
50
Ω
Connector
PL-259
V.S.W.R
Less than 1.5
Length 123cm
Weight 487gr
Grounding Required
Notes fo
r
Using the Antenna
To use your antenna PWR-4CROSS by Komunica® properly, please read carefully these instructions before using and
keep this document on-hands for later reference.
The PWR-4CROSS by Komunica® is a 10m/6m/2m/70cm FM Quad Band Mobile antenna.
Ideal for emplacement on Trunk Lid Mounting and not recommended for magnet base or mounting in centre of roof.
Grounding is required for optimum performance.
Please note:
1. This antenna requires tuning to desired frequency. It is tuned for FM segment of each Amateur band.
2. Use a quality VSWR meter to insure a proper adjustment.
3. The PWR-4CROSS requires a strong mount and a proper vehicle grounding.
4. Mounting location will affect VSWR. Ideal for emplacement on Trunk Lid Mounting.
5. It is not recommended for magnet mounts or mounting in centre roof.

Errors and omissions excepted (E&OE)
Installation Instructions
1. Remove your antenna from package and verify its contents to insure it is complete.
2. For a maximum strength and performance of your PWR-4CROSS, it´s very important to choose a proper
mounting location, with a good vehicle ground.
Matching network is compensated for trunk lid mounting and not recommended for centre roof mounting nor
magnet base.
3. Install your PWR-4CROSS antenna on vehicle. Be sure that your trunk-lid makes good contact and it´s properly
fixed for your personal security.
4. Use a quality VSWR meter and check V.S.W.R. of each band for a proper tuning.
Adjustment
Firstly, check VSWR on 6 meters:
Loosen set-screws (PWR01006) on base coil (PWR01007) and
then find the centre of frequency for a best performance of
your PWR-4CROSS.
Upon obtains an acceptable VSWR on 6 meters & 2 meters,
tighten set-screws (PWR01006) strong.
Please follow the same instructions to adjust properly the 10
meters band by the tuning whip: Raising the whip
(PWR01001) will affect both, 6 meters & 10 meters centre
frequency.
It is best to tune the 6 meters band first to reach optimum
centre frequency, then proceed to adjust for 10 meters
optimum centre frequency.
Tune until obtain a satisfactory VSWR at both 6 meters & 10
meters centre frequency.
Verify setting results in best fit for each band.
Tighten set screw (PWR01008) using removable “Loctite” or
similar product to insure a proper fastening of setscrews and
whip section.
In case you have difficulty in tuning the 10 meters & 6 meters
bands, the cause would be most likely attributed to grounding
characteristics of the vehicle trunk lid.
It is sometimes necessary to add short grounding straps or
copper braid from trunk lid to body panel, to lower resonant
frequency.