HP 5382A Hewlett Packard Frequency Counter 225MHZ

( Brand: Hp ), ( Manufacturer Part Number: 5382A ), ( Part Type: Counter )

Review HP Hewlett Packard 225mhz Frequency Counter

The **Hewlett Packard (HP) 5382A 225 MHz Frequency Counter** is a precision instrument designed for high-accuracy frequency and time interval measurements, making it an indispensable tool for engineers, researchers, and technicians in fields ranging from RF communications and signal processing to aerospace and industrial testing. Built upon Hewlett Packard s reputation for reliability and innovation, this counter delivers exceptional performance with a maximum measurement range extending up to **225 MHz**, though its true strength lies in its ability to resolve frequencies with remarkable precision achieving an accuracy of ** 0.0005% 1 digit** over its full range. The instrument s **5 -digit display** (ranging from 0.00000 Hz to 999.99999 MHz) ensures clarity and detail, while its **dual-channel capability** allows for simultaneous measurements of two independent signals, facilitating complex phase and frequency comparisons with ease. Engineered with a **10 MHz reference oscillator** (with optional external synchronization via a 1 PPS input), the 5382A maintains exceptional stability, critical for applications requiring long-term consistency, such as calibration work or frequency synthesis testing. Its **TTL-compatible input** with a **50-ohm termination** ensures compatibility with a wide array of signal sources, from oscillators and synthesizers to microwave components, while the **gate time selection** (ranging from 100 s to 100 s) provides flexibility for both fast transient analysis and steady-state measurements. The counter s **automatic frequency tracking** feature minimizes user intervention, making it ideal for continuous monitoring, while its **manual and automatic range selection** optimizes measurement speed and accuracy. Built with rugged durability in mind, the 5382A features a **front-panel keypad and display** for intuitive operation, along with **RS-232 serial communication** for programmatic control and data logging, enhancing its utility in automated test setups. Whether used for calibrating oscillators, analyzing RF signals, or troubleshooting communication systems, the HP 5382A remains a benchmark for frequency measurement, blending **unmatched accuracy, versatility, and reliability** into a single, compact instrument.

The HP 5382A is a classic frequency counter from Hewlett Packard, known for its reliability and precision. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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1. **High Accuracy and Precision**: The HP 5382A is renowned for its exceptional accuracy, with a typical accuracy of 1 ppm ( 1 part per million) over its full frequency range (up to 1 GHz). This makes it suitable for applications requiring precise measurements, such as RF testing, signal analysis, and calibration work.

2. **Wide Frequency Range**: With a maximum frequency range of 1 GHz, the 5382A covers a broad spectrum of signals, from low-frequency audio to high-frequency microwave signals. This versatility makes it useful in various fields, including telecommunications, electronics, and research.

3. **Reliability and Durability**: As a well-established model from Hewlett Packard (now Agilent), the 5382A is built to last. Many units from the 1980s and 1990s are still in use today, thanks to their robust construction and minimal failure rates. This longevity can make it a cost-effective investment over time.

4. **Manual and Automatic Modes**: The counter offers both manual and automatic measurement modes, allowing users to choose between quick one-time readings or continuous monitoring of signals. This flexibility is useful for different types of testing scenarios.

5. **Compatibility with Older Systems**: Since the HP 5382A was designed during an era when many electronic systems relied on analog and early digital interfaces, it can be integrated into legacy test setups. This makes it a valuable tool for maintaining or repairing older equipment.

6. **Low Maintenance Requirements**: Unlike some modern electronic devices that require frequent software updates or complex configurations, the HP 5382A operates on basic principles with minimal maintenance needs. This simplicity reduces the risk of unexpected failures or compatibility issues.

7. **Resale Value**: Due to its reputation for quality and reliability, the HP 5382A holds a strong resale value in the used market. If your needs change in the future, you can often recoup a significant portion of your investment by selling it.

8. **No Dependence on Modern Technology**: Unlike newer digital instruments that may rely on proprietary software, firmware, or computer interfaces, the HP 5382A operates independently. This reduces the risk of obsolescence due to changing technology standards.

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1. **Age and Obsolescence**: The HP 5382A is an older model, dating back to the 1980s. While this age contributes to its reliability, it also means that finding replacement parts or technical support can be challenging. Hewlett Packard (now Keysight Technologies) no longer manufactures or officially supports this model, which could be a drawback if repairs are needed.

2. **Lack of Modern Features**: Modern frequency counters often include advanced features such as built-in spectrum analysis, GPS-disciplined timekeeping, or USB/GPIB interfaces for seamless integration with computers. The HP 5382A lacks these features, which may limit its utility in contemporary test environments.

3. **Limited Display and User Interface**: The display on the HP 5382A is a simple analog or early digital readout, which can be less intuitive and less precise for quick readings compared to modern LCD or touchscreen displays. The interface is also less user-friendly for those accustomed to modern digital instruments.

4. **No Built-in Calibration Tools**: Modern frequency counters often include self-calibration or built-in calibration routines to ensure accuracy over time. The HP 5382A requires external calibration tools or standards, which adds to the complexity and cost of maintaining accuracy.

5. **Power Supply Dependence**: The HP 5382A typically requires a stable power supply, and fluctuations or poor-quality power can affect its performance. Modern units often have built-in power regulation or backup battery options, which the 5382A lacks.

6. **Limited Connectivity Options**: The counter may lack modern connectivity options such as USB, Ethernet, or Bluetooth. While it often includes GPIB (General Purpose Interface Bus) for computer integration, GPIB interfaces are becoming less common in newer setups, which could limit its compatibility with modern test systems.

7. **Higher Initial Cost for Used Units**: While the HP 5382A is often sold at a lower price point due to its age, high-quality used units may still command a premium, especially if they are well-maintained or come with accessories. This can make it more expensive than newer, budget-friendly alternatives.

8. **Training and Skill Dependency**: Operating the HP 5382A effectively requires a good understanding of frequency measurement principles and analog/digital electronics. Modern instruments often include built-in tutorials or guided interfaces, reducing the learning curve for less experienced users.

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The HP 5382A is an excellent choice for applications where accuracy, reliability, and simplicity are prioritized over modern features. Its precision, wide frequency range, and durability make it ideal for professional environments such as laboratories, calibration facilities, or legacy test setups. However, its age and lack of modern features may pose challenges in environments where advanced connectivity, self-calibration, or user-friendly interfaces are required. If you are working with older equipment, maintaining a legacy system, or require a high-precision tool for specific applications, the HP 5382A remains a strong contender. For users who need cutting-edge features, modern connectivity, or ease of use, newer frequency counters may be more suitable.

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- You require a highly accurate and reliable frequency counter for precise measurements.

- You are working in a field where legacy equipment is still in use, or you need compatibility with older systems.

- You prioritize durability and low maintenance over modern features.

- You are willing to invest in occasional calibration and potential repairs to ensure long-term functionality.

- You need advanced features such as built-in spectrum analysis, GPS timekeeping, or modern connectivity options.

- You require a user-friendly interface with minimal training or setup.

- You are working in a fast-paced environment where obsolescence or lack of support could be a significant drawback.

- You prefer newer, more affordable alternatives that offer similar or better performance with additional features.

For most modern applications, consider newer frequency counters such as the Keysight N9010A, Rigol DMU4000, or Fluke 98A, which offer a balance of accuracy, modern features, and ease of use. However, if you find a well-maintained HP 5382A at a reasonable price and it aligns with your specific needs, it remains a valuable tool for precision frequency measurement.

Details:

Reference # DES-16474-3B-65-1, Important Hard Drives Information. HP Hewlett Packard 5382A 225MHz Frequency Counter, : has scuffs and wear. Check the drive first with Computer Management App in Windows or Disk utility on Mac to see if it is read by computer before thinking does not work. Shipping and Handling, UPS Ground Advantage Rates are for contiguous states.

part #: 5382a prices

• $49.99-$599.00

specifications tesmetequ:

• brand: Hp
• mpn: 5382a
• part type: Counter

returns tesmetequ:

• paid by: Buyer
• method: Money back
• policy: Returns Accepted
• time: 30 Days

general tesmetequ:

• Test, Measurement Inspection > Test Meters Detectors > Other Test Meters Detectors
• condition: Used

seller tesmetequ:

• rating: 100.0%
• # reviews: 3470
• city: Upland, California

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offer tesmetequ:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1
• started: April 18, 2026

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