Procom GF RK-900 - Manual

GF-RK 900
Reinstallation Kit for GlassFix® AntennasOperating Above
500 MHz
DESCRIPTION
The “GF-RK 900” GlassFix® reinstallation kit contains all new parts
necessary to reinstall a GlassFix® antenna. The following tools are
necessary: A knife with a long, bendable blade.
Acetone and a dry cloth.
NOTE
GF antennas are not suitable for car models with windows
that have heat reflective coating.
ORDERING DESIGNATIONS
TYPE NO. PRODUCT NO.
GF-RK 900
1. DISMANTLING AN EXISTING INSTALLATION
The external antenna mount and the internal matching unit are removed
using a knife with a long, bendable blade. While bent, the knife blade is
led in between the glass surface and the unit to be removed, and with
slow, twisting movements the units can be easened off.
The external antenna mount is scrapped.
Clean the glass surface with acetone.
2. REGENERATING THE GLASSFIX® ANTENNA
Strip off the double adhesive tape remains on the matching unit. The old
tape may stick very effectively to the printed circuit board surface, and
the tape may have to be scraped off carefully with a knife.
Clean the exposed surface with acetone and mount the new double-
sided tape-pad from the “GF-RK 900” kit on the unit. Align the tape
carefully while fixing it.
The antenna is now re-established and can be mounted following the normal
GlassFix® mounting procedure.
REINSTALLATION
1. BEFORE INSTALLATION
When selecting mounting location take into consideration: positions of
back view mirror, wiper blade paths and defogger wires (when mounting
on rear window). The driver’s view should not be obstructed.
Max. allowed curvature of the glass surface on the mounting spot is 2
mm deflection per 100 mm length.
Environmental- and car temperature must be above 15° C at installation,
and installation surfaces must be dry and clean.
2. INSTALLATION
3. TUNING INSTRUCTIONS
Insert a forward/reflection-type wattmeter between the transmitter and
the antenna.
Key the transmitter and observe the forward and the reflected power.
Adjust the tuning screw on the matching unit until minimum returned
power is obtained. For duplex operation, the antenna can by off-tuned
slightly to favorize the matching on the RX. Turning the screw clockwise
will shift the antenna resonance to a lower frequency and vice versa.
The SWR on the TX should, however, never exceed 1:1.5.