Meinberg IMS-M1000, Руководство пользователя

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Installation
1.
Mount the antenna according to the criteria men-
tioned above directly on a wall, using the mounting kit
included in the delivery.
Now connect the antenna cable to the N standard
socket of the antenna.
N-Norm (female)
N-Norm (male)
DCF77 Transmission Tower
AW02
AW02 Antenna Installation
Longitudinal site aligned
to the transmission tower
Procedure for antenna alignment:
When aligning your AW02 antenna it does not show itself a visual status of the reception quality of the
DCF77 signal.
Meinberg recommends that the alignment and the associated reception quality check be done in a team. A
good method for aligning and testing a long wave antenna is to have person 1 (at the antenna) in contact with
person 2 (at the receiver).
Step 1
Person 1 rotates the antenna until person 2 reads the minimum field strength value on the front display (if
present) or the modulation indicator/ LED does not yet flash every second.
Step 2
Person 1 rotates the antenna by 90
◦
until person 2 notices a maximum reception (field strength value at maxi-
mum) or a flashing of the modulation LED every second without intermediate flickering.
However, a high signal level alone is no guarantee of good reception, as it can also be caused by electri-
cal noise in the associated frequency range.
With good reception, the connected DCF reference clock synchronises within three minutes after switching
on.
PZF Reference Clocks
IMS-PZF Field LED (Field) flashes for 10 seconds after switching on
LANTIME mit PZF-Referenzuhr Field strength/correlation value can be checked in the front display and web interface.
Pay attention to the maximum cable length when installing the antenna cable
between antenna and receiver. This depends on the cable type used (e.g.
RG58) and its attenuation factor.
38 Date: 27th May 2021 IMS - LANTIME M4000