Filter
Top Products
Insertion Gain (Amplifier) Measurement
The following frequency domain measurement is an example of a Insertion Gain (Ampli
-
fier) measurement over a selectable frequency range. Insertion loss measurements, such as
antenna-to-antenna isolation and filter rejection (isolation), follow the same procedures as
below except in Insertion Loss (+6 dBm) measurement mode.
Required Equipment
·
Site Master Model S251B
·
(2) Precision 7/16(f) Open/Short/Load, Anritsu 2000-768
·
(2) N (m) to 7/16 (m) Test Port Extension Cables, Anritsu 15NNF50-1.5A or
(2) N (m) to N (f) Test Port Cables and (2) N (m) to 7/16 (m) adaptors (510-92)
·
7/16 (f) Adapter, Anritsu 510-97
·
Tower Mount Amplifier, Ericsson A57001HQ85 or equivalent
Device-Under-Test Specification
Procedure
Step 1. Press the ON/OFF key on the Site Master.
Selecting the Measurement
Step 2. Press the MODE soft key.
Step 3. Use the Up/Down Arrow key to scroll to
INSERTION GAIN (–30 dBm). Press
the
ENTER key to select insertion gain measurement mode.
Selecting the Frequency Range
Step 4. Press the FREQ soft key.
Step 5. Press the
F1 soft key.
Step 6. Enter 1, 8, 0, 0 using the keypad or Up/Down Arrow key. Press
ENTER to set
F1 to 1800 MHz.
Step 7. Press the
F2 soft key.
Step 8. Enter 2, 1 ,0, 0 using the keypad or Up/Down Arrow key. Press
ENTER to set F2
to 2100 MHz.
Performing a Calibration
Step 9. Connect the test port extension cables to the RF In and RF Out test ports as
shown in Figure 4-17.
Step 10. Press the
START CAL key. Follow the instructions in the message area.
4-22
Chapter 4 Measurements
Type Frequency Range Gain (Typical)
TMA
1885 to 1990 MHz
1965 to 1990 MHz
+12 dB
–0.5 dB