HP 53181A

The economical HP 53181A RF counter provides fast, precise results with the core measurements you're likely to need for RF tests. It provides the same signal processing and test automation features as the HP 53131A and HP 53132A counters, along with 10 digits/second resolution. The HP 53181A offers a single 225 MHz channel standard, and you can choose an optional second channel that measures up to 1.5 GHz, 3 GHz, 5 GHz or 12.4 GHz.

Features:

• Resolution of 10 digits/second
• Measurements include frequency, frequency ratio (with optional channel 2), period and peak voltage
• Automated limit tests and one-button measurement setups for fast, easy operation
• Onboard digital signal processing speeds measurements
• Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
• Wide frequency range (dc to 225 MHz), with optional extension to 1.5 GHz, 3 GHz, 5 GHz or 12.4 GHz
• Small package fits the limited space on your benchtop
• Up to 200 measurements per second over GPIB

Specifications:

Measurements

Frequency, frequency ratio (with optional second
channel), period, peak voltage

Analysis

Automatic limit testing, math (scale and offset),
statistics(min, max, mean, standard deviation).
Statistics available on all measurements or only
measurements that fall within limits that you specify.



INPUT specs

Measurement characteristics

Frequency range dc-225 MHz
Frequency resolution 10 digits/s
Measurement speed (GPIB) up to 200 meas/s
Time interval resolution (LSD) Not applicable

Input conditioning CH 1

Impedance, coupling 1 Mohm or 50 ohm, ac or dc
Low pass filter 100 kHz, switchable
Attenuation x1 or x10



OTHER specs

External timebase Reference input

1, 5, 10 MHz

Trigger

CH 1

Trigger on rising/falling edges; set level by percent of
signal level or absolute voltage, or use auto trigger on
frequencies above 100 Hz; set sensitivity to LOW,
MED, or HIGH

Gating and arming

Auto, manual (set gate time or number of digits of
resolution); external



GENERAL specs

Interfaces
Standard GPIB (IEEE 488.1 and 488.2) with
SCPI-compatible language; talk only RS-232

Power 100-120 Vac; 50, 60 or 400 Hz
220-240 Vac; 50 or 60 Hz
AC line voltage selection is automatic

Net weight 3.5 kg (6.5 lbs)

Size 88.5 mm H x 212.6 mm W x 348.3mm D
(4 x 8.5 x 14 in)