Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド
Chapter 3 Balancing and Setup
48
1 Connect an RF meter or spectrum analyzer to the forward main output test point.
2 Set switch S1 to position number 2.
2 Set switch S1 to position number 2.
3 Turn the MANUAL BACKOFF potentiometer fully counterclockwise for
maximum gain.
4 Determine the outside temperature at the amplifier location.
5 Refer to the Manual Backoff Chart (on page 49) to find the proper manual backoff
5 Refer to the Manual Backoff Chart (on page 49) to find the proper manual backoff
level for the current temperature and reference frequency.
6 Turn the MANUAL BACKOFF potentiometer clockwise to reduce the output
level by the amount specified in the Manual Backoff Chart.
Note: After making this adjustment, do not adjust the MANUAL BACKOFF
potentiometer again.
potentiometer again.
7 Proceed to the next section, To Determine the Output Tilt.