NISSEI TM-4000 SWR/POWER METER
NISSEI TM-4000 SWR/POWER METER
Description
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The Telewave Model 44 series RF Wattmeters are compact, versatile instruments used for direct measurement of forward and reflected RF power. Thanks to their wide band capability and dynamic range, no elements, inserts, or bandswitching is required. The 20uA taut-band meter is shock mounted in a rugged, diecast housing, making these instruments ideal for mobile radio installation in aircraft or vehicles, as well as base stations. Models with a -P suffix include an RF sampling port, with an output 40dB below the transmission line level, for frequency measurement or spectral analysis. This input and output port is accessed via a BNC connector located on the side of the units. It allows for injecting an input signal into the unit under test or can be used for spectrum analysis and frequency measurements without affecting the operation of the meter. Five power scales are provided, The 500 watt scale will test most high powered transmitters, while the 5 watt scale makes it simple to tune low powered portables. The excellent stability of these and the ability to switch them from one power range to another to check the calibration eliminated the need for a secondary standard to check calibration
Features
- Requires no inserts or "slugs"
- No band switching
- Measures 1 to 500 Watts
- Five power ranges
- Five watts full scale range
- Frequency range: 25 - 1000Mhz (44A & 44AP) and 2 - 200MHz (44L1 & 44L1P)
- Measures forward and reflected power
- Shock-mounted meter movement
- Available with N or UHF Quick-Change connectors
- Light weight and easy to carry
- -40dB RF sampling port optional
Specification
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Full Scale Power Ranges : 5, 15, 50, 150, 500W Impedance, Primary Line : 50 Ohms nominal VSWR : 1.1 maximum RF Sampling Port (-P suffix) : 40dB +/- 2dB Dimensions : 169(h) x 102(w) x 83(d) mm Weight : 1360 g In The Box
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- Unit
- Bracket
- DC Power cable
- Thumbscrews
- Self-tapping screw
- Instruction manual