TE1000 Vector RF Impedance Analyzer
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The TOMCO TE1000 vector impedance analyzer is a versatile, portable test instrument which enables the user to make highly accurate impedance measurements through VHF RF frequencies.
The TE1000 has full vector measurement capability, and accurately resolves the resistive, capacitive and inductive components of a load. The user can display the vector impedance plus a range of related parameters including SWR, reflection coefficient, return loss and R-L-C equivalent circuit.
The TE1000 impedance analyzer is ideally suited for precision bench testing and development, making it a superior alternative to portable SWR meters and antenna testers which can only provide a fraction of this information.
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Only $3750 US
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The TE1000 impedance analyzer operates from 0.5-150MHz. It also includes a general purpose RF test signal output across this frequency range. The lab precision unit is rugged, lightweight and can be powered by mains or by internal battery making it ideally suited for both benchtop and portable use. An internal data display provides stand alone visual output. The unit's RS232/USB interface and PC based software further increase the power of the instrument. These features provide swept frequency capability and facilities for complex data analysis, data logging and graphical display on a convenient laptop or other computer. The TE-1000 impedance analyzer is supplied in a lightweight, rugged aluminum case.
TE1000 Impedance Analyzer Tuning a TOMCO Atmospheric Radar System
The TE1000 offers similar functionality and comparable accuracy over its range as the HP/Agilent 4193A and other "high end" lab instruments, at a fraction of the cost.
Features of the TE-1000 Impedance Analyzer:
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powerful built-in computational capabilities allow the TE-1000 Vector Impedance Analyzer to display a wider range of parameters: not just impedance, but also reflection coefficient, series or parallel R-L-C equivalent circuit, SWR and return loss
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sophisticated built-in algorithms eliminate contamination of measurements due to stray reactances in the probe
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vector quantities can be displayed in polar or rectangular coordinates
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swept frequency measurements and data logging via a simple serial or USB interface (software supplied)
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sophisticated, user friendly software to log and display data in a range of plots including Smith charts
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accuracy equal to or better than HP/Agilent 4193A for comparable function
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range of adaptors available allowing the probe to connect directly to N-type connectors or to surface mount components via tweezer adaptor
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calibration certificate
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Easy on your budget
TE1000 Impedance Analyzer with Laptop PC Display for RF Circuit Tuning
The broad capabilities of the TE-1000 RF impedance analyzer enable this versatile RF test equipment to function as a vector impedance meter, capacitance meter, inductance bridge (replacing Delta OIB-3 and General Radio 1606 RF bridges), antenna analyzer, VSWR meter, and return loss bridge.
How the TE1000 Vector Impedance Analyzer Works:
The TE1000 RF Impedance Analyzer operates by generating an RF signal at a user defined frequency in the range 500kHz to 150MHz, and injecting it into the load at the probe tip. The resultant RF voltage and current are sampled and measured, and from this the unit calculates the complex impedance of the load. Once the complex impedance is known, the VSWR, reflection coefficient, R-L-C equivalent circuit and return loss can also be determined. The user selects which measurement is to be displayed and in which format. The impedance can be displayed in rectangular or polar format. The R-L-C equivalent circuit can be displayed as either a series or parallel circuit.
There are 2 basic modes of operation. In fixed frequency mode one frequency only is selected by the user. In scan mode the user can scan sequentially through a range of frequencies. The scan mode is particularly useful for locating resonances such as in a quarter wave line or a crystal.
The TE1000 Impedance Analyzer can be controlled either via the keypads on the front panel or remotely from a PC using the RS232 serial line and control software. The PC software can be used to log data directly from the impedance analyzer and store this in a format which is compatible with MS Excel.
TE1000 Impedance Analyzer Specifications
| Model number | TE1000 |
| Frequency range | 0.5-150 mHz |
| Frequency resolution |
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| Impedance measurement range |
Measures impedance at any angle Magnitude range 1Ω to 10k Ohm |
| Measurement speed | Display updated every 500 milliseconds (approx.). |
| Typical accuracy of measurement |
The accuracy depends on the impedance being measured. Guaranteed accuracy for 3 standard impedances are listed below:
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| Measurement modes |
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| SWR measurement range | Greater than 100:1 (depends on system characteristic impedance) |
| Power source | DC plug-pack or internal battery (auto power-save in battery mode) |
| Display | 80 character alphanumeric LCD |
| Measurement probe | Active probe on 1 metre cable - allows direct in-circuit measurements |
| Interface | RS232 on 9-pin D and USB connectors- software runs under Windows 95/98/XP |
| Weight | 1.9kg |
| Dimensions | 250w x 200d x 80h |
Typical TE1000 Impedance Analyzer Applications Include:
- RF engineering design and development
- AM, MW, HF, shortwave antenna and transmitter tests
- FM and TV transmitter and antenna tests
- Transmission line impedance matching
- Production line component tests
- TDR and FDR Cable fault finding
- RF filter and balun design and test
- NMR and MRI testing
- Cutting cables to precise electrical lengths
- On site antenna tuning
- Incircuit measurement
- Component characterization
More Applications of the TE1000 Impedance Analyzer
The TE1000 RF impedance analyzer is capable of extremely accurate measurements of a wide range of impedances. However, as with any high frequency measurement, a certain amount of care must be taken to ensure that the results are not "contaminated" by stray impedances. Always observe the following precautions when using the TE1000 impedance analyzer (or any other impedance analyzer):
- Minimize any lead lengths between the probe and the impedance to be measured. Even a few millimetres of wire can be significant when measuring low impedances at high frequencies.
- Connect the load as close as possible to the base of the probe tip. This is the point which the TE1000 imepdance meter uses as its reference.
- Avoid having any excess lead length "hanging off" the probe tip: such lead length acts as a small antenna and appears as a capacitor in parallel with the impedance being measured. This can be significant when measuring high impedances at high frequencies.
- Keep your fingers clear of the probe tip when making a measurement. Hold the probe body and earth ring only.
When measuring in or around high power RF sources, ensure that no stray RF enters the probe.
Measuring the length of a coaxial cable
Connect the TE1000 impedance analyzer to the cable, and terminate the cable with a "perfect" reflector - an open circuit is usually the easiest. If the total electrical length of the cable is less than one half-wavelength then the angle of the reflection coefficient (in polar format) is twice the electrical length of the cable:
Electrical length in degrees = angle of reflection coefficient / 2
Furthermore, if the velocity factor, Fc, of the cable is known then the physical length of the cable can be calculated from:
Physical length = ( electrical length in degrees x Fc x 3 x 10 8 ) / (360 x frequency in Hz )
For example, if the reflection coefficient is 0.5<40° then the cable is electrically 20° long. If the velocity factor of the cable is 0.66 and the frequency is 10MHz, then the cable is physically 1.1 metres long.
Measuring the loss in a length of coaxial cable
Connect the TE1000 impedance analyzer to the cable, and terminate the cable with a "perfect" reflector - an open circuit is usually the easiest. Then the loss in the cable is equal to the return loss divided by two. In other words, the return loss is the total loss in the cable, to the end and back again.
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Worldwide Shipping and Support
The TOMCO TE1000 Vector Impedance Analyzer is shipped and supported worldwide.
LBA is the exclusive distributor of the TE1000 in the Western Hemisphere!
Rely on LBA for fast and secure delivery, and after sale warranty support.
Only $3750 US*!
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Call 800-522-4464 or 252-757-0279
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*No charge for shipment in the Western Hemisphere. Expedited shipping and handling will be charged extra. Duties and taxes are extra as required by destination.
The TE1000 Vector Impedance Analyzer is a product of TOMCO now licensed to TrewMac Systems.
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