Agilent Technologies, Inc. 53181A-060 Chan.1 rear input in parallel with front input

Replacement Product: 53210A

Transitioning from 53131A, 53132A, 53181A frequency counters to their replacements, the 53200 Series RF and universal frequency counter/timers

Option 060: Select when no 2nd channel option has been ordered

Adds parallel rear input connectors for channel 1 ^(1),(2)

Option 061: Use when an optional 2nd channel (1.5 GHz Option 015, or 3 GHz Option 030) is selected.
Adds parallel rear panel connectors for channel 1^(1),(2)
The BNC for channel 2 will be on the REAR of the instrument ⁽³⁾

Option 062: Use when an optional 2nd channel (5, or 12.4 GHz) is selected.
Adds parallel rear panel connectors for channel 1^(1),(2)
The N-type connector for channel 2 will be on the FRONT panel

1. When ordered with optional rear terminals, the Channel 1 input is active on both the front and rear of the counter, though the specifications provided only apply to the rear terminals. Performance for the front terminals is degraded, but may be improved by terminating the rear terminals into 50ohms.
2. Since the front and rear inputs are connected in parallel they should be used independent of each other.
3. Specifications are the same for both the front or rear Channel 2 connectors.