Model 250S1G6
Rev D
35
2.
Remove the coaxial cable from the output of the K1 connector to the input of the A3 Four-Way Splitter.
The typical response from the input of the A3 Four-Way Splitter to the RF Output connector on the unit’s
front panel is shown in Figure 4-3.
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Gain
(d
B)
Frequency (GHz)
Figure 4-3. Typical Response: Input A3 Front Panel RF Output
If the response is normal, see Step 8. If the response is abnormal, perform the following tests.
3.
If the gain is slightly low (i.e., several dB below typical), try disconnecting the inputs from the A12
through A27 Quad Amps one at a time, then reconnect them. Note the difference in response when
disconnecting the Quad Amps; if any Quad Amp causes less of a change in gain than the others, check the
Quad Amp, coaxial cable, and so forth associated with that Quad Amp. Typical Quad Amp Response is
shown in Figure 4-4
.
Figure 4-4. Typical Quad Amp Response
