Anritsu S251C - Manual (Page 64)

Device Under Test
q TMA-D
Procedure
Step 1. Connect the External Power Supply (40-115) to the Site Master.
Step 2. Turn on the Site Master and press the MODE key.
Step 3. Select
INSERTION GAIN (–30 dBm) using the Up/Down arrow key and press
ENTER .
Step 4. Press the FREQ/DIST key to set the frequency limits. For a TMA-D amplifier,
set F1 to 1800 MHz and F2 to 1990 MHz.
Step 5. Perform a two-port calibration of the Site Master (page 3-4).
Step 6. Connect the RF Out port of the Site Master to the ANT connector of the TMA.
Step 7. Connect the RF In port of the Site Master to the RX connector of the TMA
Step 8. Press the MARKER key and set marker set M1 to 1834 MHz and marker M2 to
1871 MHz
Step 9. Press the SYS key, then
OPTIONS, then BIAS TEE to turn on the bias tee volt-
age. The gain is the level change before and after the bias tee voltage is turned
on.
4-17
Chapter 4 Measurements
TMA-D
RX TX ANT
HOLD RUN
START
CAL AUTO
SCALE
SAVE
SETUP RECALL
SETUP
LIMIT MARKER
SAVE
DISPLAY RECALL
DISPLAY
PRINT
MODE FREQ/DIST AMPLITUDE SWEEP
SYS
ENTER
CLEAR
ESCAPE
ON OFF
/
1 2
4
5 6
7 8
9 0
3
+ -
.
Site Master S251C
RF IN TEST PORT
TEST PORT CABLE
(OPTIONAL) TEST PORT CABLE
(OPTIONAL)
EXTERNAL POWER
SUPPLY (40-115)
RF OUT TEST PORT
(BIAS TEE)
Figure 4-13. TMA-D Measurement Setup