Telewave Inc. 44A Level Meter
Manufacturer:
Model:
44A
Date:
2008
Category:
Group:
Description:
BROADBAND RF WATT METER
Information
This manual provides the physical and functional description and operating theory necessary for effective use of the Telewave Model 44A/AP Broadband Radio Frequency (RF) Wattmeter. Its features include: • Displays five power ranges • Measures 1 to 500 watts • Does not require inserts • Does not require band switching • Fully operable in freezing conditions • Provides 5 watts full scale range • Interchangeable connectors (QC) • Lighweight, rugged and easy to carry • -40 dB RF sampling port (Model(44AP) 2.02 The instrument integrates two broadband directional couplers for measuring incident and reflected power, ranging, calibration and display. The wide coverage and dynamic range of this instrument eliminates any inserts or band switching. A 20 µA taut band meter movement is used to display the measured power, providing the measurement accuracy necessary to tune low power portable transmitters. 2.03 A convenient, easy to read, voltage standing wave ratio (VSWR) chart is provided on the rear of the instrument for determining VSWR from the measured incident and reflected power levels. The instrument is designed for rugged field use and is housed in a diecast metal case with a leather carrying strap. The measurement circuits in the wattmeter are driven directly by the current developed in the coupler, making it unnecessary to supply AC power or batteries. A carrying case (Model TC44) is available as an option. The Model 44A/AP is ideally suited for mobile, marine, and aircraft applications as well as base stations.

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User Manual
Manual type:
User Manual
Pages:
21
Size:
484.44 Kbytes (496067 Bytes)
Language:
english
Revision:
Manual ID:
Date:
01 March 2008
Quality:
Electronic document, no scan, very well readable.
Upload date:
20 August 2017
MD5:
ad834a27727a3d8cbc369ea59c93e943
Downloads:
316
Information
CONTENTS SPECIFICATIONS GENERAL DESCRIPTION PHYSICAL DESCRIPTION FUNCTIONAL DESCRIPTION Schematic and Parts List Functional Description Accessory List OPERATION Unpacking and Connections Power Measurements VSWR Calculations True Power at Load Calculation Directivity and Insertion Error MAINTENANCE Warranty Service and Calibration Parts Location Calibration / Adjustment Procedure REFERENCE VSWR Nomograph Low Frequency Correction Chart Jumper Cable Cutting Chart

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