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5 Mounting the GPS Antenna
5.1 Antenna Cable:
Type of cable
diameter Ø
Attenuation at 100MHz
max lenght.
[mm]
[dB]/100m
[m]
RG58/CU
5mm
17
300
(1)
RG213
10.5mm
7
700
(1)
(1)This specifications are made for antenna/converter units produced after January, 2005
The values are typically ones; the exact ones are to find out from the data sheet of the used cable
5.2 Antenna Short-Circuit
(systems with front display only)
In case of an antenna line short-circuit the following message appears in the display:
ANTENNA
SHORT-CIRCUIT
DISCONNECT POWER
! ! !
If this message appears the clock has to be disconnected from the mains and the defect eliminated. After that
the clock can be powered-up again. The supply voltage for the antenna/converter unit is approx. 18.5 V DC in
idle mode and approx. 16 V DC when the GPS antenna is connected.
IMS-M4000
Date: 21st August 2019
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