Bird Technologies AT-500-Manual - Manual (Page 50)

Bird AT-500 Antenna Tester
32
Using a Trace as the Limit
The trace you want to use for the limit must be saved.
You can have the current antenna test running or start
it after you set up the limit test.
Figure 12 Dotted Outline of Limit Trace
1. Press the MENU key.
2. Press the SWEPT FREQ key.
3. Press the LIMIT key.
4. Press the TRACE - > LIMIT key.
5. Press the REG-n key where the trace is stored.
Note:
A dotted outline of the limit trace will
be displayed with the new trace displayed over it.
Pass or Fail will be displayed.
Note:
You can still move the cursor,
change measurement units, frequency band
and scale. The dotted outline of the limit trace
will be automatically adjusted to provide a
direct comparison with the antenna system
under test.
Swept
Freq Field
Str Util Test
VSWR
2.0
1.0
2.00 MHz 136.00
*
1.35
69.00 MHz
PASS
Single
Freq