User's Manual Part 2

RBS 2308 and RBS 2309 User’s Guide
6.3.3 Measuring Feeder L
ength
This section descr
ibes how to measure the feeder length, based on the result of
the test in chapter
Section 6.3.2 Testing Feeder Installation on page 94.
1. Press the MARKER key.
2. Press the M1 soft key.
3. Press the EDIT soft key and place the M1 marker at the near end of the
feeder using the UP/DOWN arrow key. See figure below.
P007951A
CAL ON LIM ON 259 POINTS RECALL
1.20
ON/OFF
50.0DIST (m)
0.0
1.00
EDIT
DELTA
(M2 - M1)
MARKER
TO
PEAK
BACK
M3=OFF
M4=OFF
DTF DTF1
MARKER
TO
VALLEY
M1:1.01,2.3m
:+0.07, +38.6m
2
Figure 41 Placing the M1 and M2 Markers
4. Press the BACK soft key and then the M2 soft key.
5. Press the EDIT soft key an
d place the M2 marker at the far end of the
feeder, using the UP/DO
WN arrow key. See figure above.
6. Press the DELTA (M2–M1) soft key and enter the
Δ2 value as the feeder
length in the test record.
7. Create a unique trace name according to Section6.4NamingaDTF
Measurement on page 96. Save the measurement by pressing the SAVE
DISPLAY key. Type in the trace name using the alphanumeric soft keys,
and press ENTER.
6.4 Naming a DTF Measurement
This section describes how to give the measurement a unique name that is
traceable to a specific antenna system on a specific site.
96
EN/LZT 720 0027 Uen R8A 2006-06-27