Atec Agilent-N1921A - Manual (Page 7)

7
1 mW Power Reference (continued)
Physical characteristics
Dimensions The following dimensions exclude front and rear panel protrusions:
88.5 mm H x 212.6 mm W x 348.3 mm D (3.5 in x 8.5 in x 13.7 in)
Net weight N1911A ≤ 3.5 kg (7.7 lb) approximate
N1912A ≤ 3.7 kg (8.1 lb) approximate
Shipping weight N1911A ≤ 7.9 kg (17.4 lb) approximate
N1912A ≤ 8.0 kg (17.6 lb) approximate
Display 3.8 inch TFT Color LCD
Environmental conditions
General Complies with the requirements of the EMC Directive 89/336/EEC
Operating
Temperature
Maximum
humidity
Minimum humidity
Maximum altitude
0 °C to 55 °C
95 % at 40 °C (non-condensing)
15 % at 40 °C (non-condensing)
3,000 meters (9,840 feet)
Storage
Non-operating storage temperature
Non-operating maximum humidity
Non-operating maximum altitude
–40 °C to +70 °C
90 % at 65 °C (non-condensing)
15,420 meters (50,000 feet)
System specifications and characteristics
The video bandwidth in the meter can be set to High, Medium, Low and Off. The video bandwidths stated in the table
below are not the 3 dB bandwidths, as the video bandwidths are corrected for optimal flatness (except the Off filter). Refer
to Figure 2 for information on the flatness response. The Off video bandwidth setting provides the warranted rise time and
fall time specification and is the recommended setting for minimizing overshoot on pulse signals.
Dynamic response - rise time, fall time, and overshoot versus video bandwidth settings
Parameter
Video bandwidth setting
Low: 5 MHz Medium: 15 MHz High: 30 MHz
Off
< 500 MHz > 500 MHz
Rise time/fall time 1 < 56 ns < 25 ns ≤ 13 ns < 36 ns ≤ 13 ns
Overshoot 2 < 5 % < 5 %
For Option 107 (10 m cable), add 5 ns to the rise time and fall time specifications.
1. Specified as 10 % to 90 % for rise time and 90 % to 10 % for fall time on a 0 dBm pulse.
2. Specified as the overshoot relative to the settled pulse top power.
Recorder output and video output
The recorder output is used to output the corresponding voltage for the measurement a user sets on the Upper/Lower
window of the power meter.
The video output is the direct signal output detected by the sensor diode, with no correction applied. The video output
provides a DC voltage proportional to the measured input power through a BNC connector on the rear panel. The DC volt-
age can be displayed on an oscilloscope for time measurement. This option replaces the recorder output on the rear panel.
The video output impedance is 50 ohm.