如果您想了解有关该产品的更多信息,请联系我们。

Rohde and Schwarz ZNH4 - 30 kHz to 4 GHz Handheld Vector Network Analyzer (1321.1611.04)

仅剩3
正常价格 $17,105.00 USD
正常价格 $18,199.00 USD 销售 售价 $17,105.00 USD

商品详情

  • 类型 Complete Products
  • 小贩 ROHDE & SCHWARZ

Rohde and Schwarz ZNH4 - 30 kHz to 4 GHz Handheld Vector Network Analyzer (1321.1611.04)

  • 30 kHz to 4 GHz frequency range
  • Catalog number: 1321.1611.04
  • One-port cable and antenna measurement with basic instrument
  • S-parameter (S11, S12, S21, S22) measurement with basic instrument
  • 100 dB (typ.) dynamic range for filter and antenna isolation measurements

The R&S ZNH is a full two-port handheld vector network analyzer (VNA) that offers one-port cable and antenna measurement and full two-port S-parameter measurements. The touch-based interface simplifies operation and a configuration overview menu makes measurement preparation more efficient. The R&S ZNH may have a small form factor, but it is complete in every detail and delivers good performance and all the key functionalities.

Maintaining the operation of RF communications systems requires fast identification of any defects in the system components. The R&S ZNH, a multifaceted handheld vector network analyzer, helps on-site field engineers remedy defective components detected in the system. The basic version of the R&S ZNH handheld VNA can perform one-port cable and antenna measurements and four S-parameter measurements. With the addition of an optional power meter, pulse measurement, wave ratio, and wave quantities functionalities, the R&S ZNH enables field engineers to maintain and restore radar and satellite systems swiftly.

The ZNH basic unit includes:

  • Distance to fault measurement
  • One port cable loss measurement
  • Reflection measurement
  • Transmission measurement
  • Four S-parameters (S11, S21, S12, S22)

There are also several optional measurement modes. More information on these can be seen further below. The part numbers are indicated in parentheses.

  • Power sensor support (ZNH-K9)
  • Pulse measurement (ZNH-K29)
  • DC bias variable voltage source (ZNH-K10)
  • Vector voltmeter (ZNH-K45)
  • Wave ratios and wave quantities (ZNH-K66)

Several versions available

The ZNH is available in four models, with maximum frequencies ranging from 4 to 26.5 GHz. The following is a brief overview of the main features of each.

Model Catalog Maximum frequency Number of ports CAT functionality S-parameter RF Connector
ZNH4 1321.1611.04 4 GHz 2 Standard Standard N
ZNH8 1321.1611.08 8 GHz 2 Standard Standard N
ZNH18 1321.1611.18 18 GHz 2 Standard Standard N
ZNH26 1321.1611.26 26.5 GHz 2 Standard Standard PC 3.5mm

Four receiver architecture

The four-receiver architecture consists of dedicated reference receivers and test receivers at both port 1 and port 2. This allows the ZNH to support more advanced calibration types such as unknown through, open, short, and match (UOSM) calibration. This calibration is useful for DUTs with different input or output connector types at the test ports.

Simple to operate

The multi-touch screen offers the standard pinch to zoom function available on smartphones. The ZNH supports typical phone control gestures, helping users feel at home. Even if operators cannot access the instrument directly, free PC, Android, and iOS remote control apps are available for seamless operation. Furthermore, the measurement wizard helps simplify measurements with automated test sequences, speeding up the test process and reducing the potential for human error.

One-port cable and antenna measurements

With 16001 points per trace, the R&S ZNH can measure electrically long cables with no limitations. This enables the detection of cable discontinuities, which is important for base station antenna installation. For the one-port cable loss measurement, only one end of the cable needs to be connected to the R&S®ZNH test port; the other end can be terminated with a short circuit or left open.

Alternately, the antenna system performance can be assessed with reflection measurements. When a minimum amount of the transmitted signal is reflected, it indicates that the transmission energy efficiently covers the intended area. Unnecessarily high reflection makes the system inefficient and can damage components. Reflection measurements can be expressed in terms of return loss, VSWR, and the reflection coefficient.

Four S-parameter measurements

S-parameters are the basic measured quantities of a network analyzer. They describe how the DUT modifies a signal that is transmitted or reflected in the forward or reverse direction. During product development and manufacturing, it is common to test component specifications and verify design simulations to ensure systems and their components work properly. In the field, S-parameter measurement helps to verify and troubleshoot deployed RF and microwave systems. The full two-port R&S ZNH offers the four S-parameter (S11, S21, S12, S22) measurements as standard. The VNA features single, split, triple, and quad display modes and various formats.

Optional measurement modes

Power sensor support (ZHN-K9)

Any high-precision power measurement application, for instance, level calibration, requires very high accuracy to measure and align transmitting power. When equipped with the R&S NRPxx power sensors and the ZNH-K9 option, the R&S ZNH becomes an accurate RF power meter with a wide measurement range. Calibration is not required prior to making measurements since the sensors are fully characterized over frequency, level, and temperature and feature long-term stability. Zeroing is usually not required; the user can plug in a sensor and simply start measuring.

Pulse measurement (ZNH-K29)

The ZNH-K29 option enables precise pulse and peak power measurements using the ZNH together with a Rohde & Schwarz wideband power sensor. Field applications benefit from this compact, powerful combination.

During installation and maintenance of radar systems, pulse characteristics and output power have to be measured. Due to a maximum video bandwidth of 30 MHz and a rise/fall time of < 13 ns, the sensors can measure pulses with a pulse width as short as 50 ns.

When installing and maintaining even the latest generation of microwave link modules, the user benefits from the sensor's high measurement speed and wide dynamic range.

Automatic pulse analysis helps the user measure important pulse parameters. This analysis eliminates the need for complex measurements using markers. Changes in the pulse shape are immediately taken into account in the measurement results.

The following parameters are determined by automatic pulse analysis:

  • Time parameters: rise/fall time, start/stop time, pulse width, duty cycle, pulse period
  • Level parameters: pulse top, pulse base, peak, average, minimum, overshoot (positive and negative)
Pulse analysis with R&S ZNH-K29 and R&S NRP-Z81 wideband power sensors
DC bias variable voltage source (ZNH-K10)

Certain systems, such as tower-mounted amplifiers (TMA) for mobile communications applications, require DC power to be fed via the RF cable. Standard setups consist of a handheld analyzer, a 110V/230V plug-in power supply, a dedicated bias tee, and cables. The R&S ZNH has an integrated bias tee that does not require these components as additional external devices and can be battery-operated. The VNA acts as a hassle-free variable voltage source to provide the power these systems need for testing, installation, and maintenance.

Vector voltmeter (ZNH-K45)

The R&S ZNH-K45 vector voltmeter option displays the magnitude and phase of a DUT at a fixed frequency. The ZNH can therefore replace a conventional vector voltmeter for many applications. The required signal source and bridge are already available in the ZNH.

The setup is extremely simple, which makes the R&S ZNH-K45 ideal for field use. The results of relative measurements from a reference DUT can be stored at the push of a button. Comparison measurements, e.g. between various RF cables and a reference cable (golden device), can be quickly and easily performed. Typical applications are:

  • Adjustment of electrical cable length
  • Installation, maintenance, and troubleshooting of phase-controlled antennas, for instance, localizer antennas used in instrument landing systems (ILS) for air traffic control
  • Calibration of monopulse radars
Wave ratios and wave quantities (ZNH-K66)

R&S ZNH offers four fully coherent receivers/channels. This means there are two additional sets of measurement parameters, which have an unambiguous meaning even if the DUT is measured outside its linear range:

  • Wave quantities provide the power of any of the transmitted or received waves
  • Wave ratios provide the complex ratio of any combination of transmitted or received wave quantities

The wave quantities provide the absolute power and phase at the various receivers of the analyzer ports. Wave quantities are therefore suitable for the following measurement tasks:

  • Use of the analyzer as a frequency selective power meter
  • Harmonics
Wave ratio measurement
Wave quantities measurement
Overview of Handheld Analyzers
Applications Customers Measurements / functions required Measurements/functions available in
ZPH ZVH ZNH FPH FSH
Installation & maintenance • Communication, mobile and
broadcast operators and contractors

• Satellite and radar system integrators,
contractors, end- users (civil and military)
Antenna performance K39 - K42**
Cable performance K39 - K42**
Cable fault identification - K41**
Waveguide fault identification - K41 - -
Filter performance ✓* K39 - K41**
RF transmission / spectrum analysis K1** K1 -
Power measurement
with power sensor
K9
AM/FM transmission
[Radio broadcaster]
K7* - - K7 -
Pulse measurement
[Radar customer]
K29
EMF measurement
(with TS-EMF antenna)
✓*** ✓*** - ✓*** K105
LTE demodulation measurement - - - - K50/ K50E/ K51/ K51E
GPS information – Built-in GPS
receiver External GPS receiver
B10* -
HA-Z240 (ZVH & FSH) / HA-Z340 (the rest)
Interference hunting • Mobile and broadcast
operators and contractors

• Satellite and radar system
integrators,
contractors, end- users (civil and military)

• Regulators
Spectrogram (recording) K15** K14 - K15 K15
Triangulations
(with HE400 antenna)
K15** - - K15 K15
Indoor/outdoor mapping K16** - - K16 K17
Geotagging/ Signal strength mapping K16** - - K16 K16
Spectrum and EMF measurement   Spectrum analysis - OBW,
channel power and SEM, etc
K1** K1 -
EiRP measurement - - - -
EMF measurement
(with TS-EMF antenna)
✓*** ✓*** - ✓*** K105
R&D measurement   EMI debugging
(with HZ-15/17 probes)
- - - K43 K43
Components testing
(DUT dependent)
✓* K39 / K42 - ✓**
Education RF transmission / Spectrum analysis K1** K1 - -
Production testing AM/FM transmission K7* - - K7 -
Pulse measurement K29
Go/No-go testing (limit line)
*For ZPH - S11 and S21 only, FSH (.23/.30) – S12 and S22 only
**Models dependent (pls check the respective analyzer datasheet)
***Basic field strength measurement (no demodulation & reporting)

In The Box

  • ZNH device
  • Lithium-ion battery pack
  • USB cable
  • AC power supply
  • Getting started manual
  • Side strap

Manufacturer Specs

Network analysis
Frequency range   30 kHz to 4 GHz
Test port connector   type N female
Number of test ports   2
Standard measurement functions one-port cable and antenna measurement reflection and transmission measurement, one-port cable loss, DTF measurement
  two-port vector network analysis S11, S21, S12, S22
Result format   ► dB magnitude
► phase
► unwrapped phase
► Smith
► linear magnitude
► real
► imaginary
► SWR
► polar
► group delay
Calibration methods   ► reflection normalization (open and short)
► reflection (OSM)
► transmission normalization (P1 and P2)
► transmission normalization in both directions
► TOSM
► UOSM
Dynamic range   100 dB (typ.)
Output power   0 dBm (typ.)
Trace noise magnitude (RMS)   0.0015 dB (typ.)
Trace noise phase (RMS)   0.0015° (typ.)
Measurement speed   761 µs per point
Number of measurement points selectable 3 to 16001
Measurement bandwidth range 10 Hz to 100 kHz in 1/3/10 steps
Measurement range   –120 dB to +30 dB
Maximum rated input leve CW RF power 23 dBm (= 0.2 W)
  peak RF power 26 dBm (= 0.4 W)
DC bias output voltage mode: internal +2 V to +32 V in 0.1 V steps (nom.)
General data
Display size capacitive touchscreen 7"
Display resolution WVGA 800 x 480 pixel
Battery (R&S®HA-Z306) capacity 72 Wh (version E), 74.5 Wh (version F and above)
  voltage 11.25 V (nom., version E) 10.8 V (nom., version F and above)
Operating time with new, fully charged battery   4 h
Dimensions W x H x D 202 mm × 294 mm × 76 mm (8.0 in × 11.6 in × 3 in)
Weight   3.1 kg (6.8 lb)