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Model 4304A and 4308

Broadband, Fixed-Element Multirange Wattmeter for Analog Wireless RF Applications, 25–1000 MHz

4304AThe Model 4304A wattmeter is a popular choice for quick testing over multiple power and frequency ranges, and for many two-way communications applications. A single, permanently mounted, 25-1000 MHz element delivers full-scale measurements from 5 to 500 watts. A high quality line section keeps insertion loss to less than 0.10 dB from 25 MHzŒ512 MHz and 0.13 dB from 512 MHzŒ1000 MHz. The resulting full-scale accuracy is 6% to 7% (depending on frequency).

Performance is stable to 1000 MHz. Insertion VSWR with the supplied female N-type connectors is a maximum of 1.07 at 512 MHzŒ1000 MHz and will not exceed 1.05 VSWR at 25 MHzŒ512 MHz. A chart mounted to the back of the instrument lets you easily determine antenna or load VSWR from power measurements.

  • Permanently mounted broadband element covers 25 MHz–1000 MHz and 5W–500W.
  • Ideal for service work where speed and ease-of-use are a top priority.

Specifications

Power Ranges: 5, 15, 50, 150, 500 W, with no scale limitations except power limited to 150 W from 800 MHz-1000 MHz.

Frequency Range: 25 MHz to 1000 MHz.

Insertion VSWR:   25 MHz-512 MHz: 1.05 maximum with N female connector.
512 MHz-1000 MHz: 1.07 maximum.

Insertion Loss: 25 MHz-512 MHz: 0.10 dB maximum with N female connector. 512 MHz-1000 MHz range, 0.13 dB max.

Accuracy: 25 MHz-100 MHz: 7% of full scale, using correction charts.
100 MHz
-512 MHz: 6% of full scale, no correction
needed.
512 MHz
-1000 MHz: 7% of full
scale, no correction needed.

Connectors: QC Type (Female N normally supplied).

Finish: Light gray powder coat.

Nominal Size: 6 7/8"L x 5 1/8" W x  3 5/8" D, (175 mm 5 130 mm 5 92 mm).

Weight: 3 lb. (1.36 kg).

Element: Fixed, multi-range, non-interchangeable.


Model 4308

Cellular Specialist Multirange Wattmeter for Analog Cellular,
440–960 MHz

4308The Model 4308 provides measurements with 5% full scale accuracy for analog cellular systems and subscriber equipment. This instrument is also a good choice for low to medium power analog RF measurements in the UHF and 800Œ960 MHz band.
If you work with digital cellular, the APM-16 is a better choice with its ability to
handle both digital and analog RF technologies.

  • Fixed-element design for analog cellular applications.

 

Specifications

Power Ranges: 1.5, 5, 15, 50 W, with no scale limitations.

Frequency Range: 440 MHz-960 MHz.

Insertion VSWR: 1.05 with TNC connectors (QC type).

Accuracy: 5% of full scale.

Impedance: 50 ohms, nominal.

Connectors: QC Type (Female TNC normally supplied).

Finish: Gray powder coat.

Nominal Size: 6 7/8 " L x 5 5 1/8" W x 3 5/8" D, (175 mm 5 130 mm 5 92 mm).

Weight: 3 lb. (1.36 kg).

Element: Fixed, multi-range, non-interchangeable.

WISCO International, Inc. - MIAMI, FL U.S.A.
Fax: (954) 370-3997 | E-mail: wiscointl@wiscointl.com

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