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Coaxial Dynamics Model 81041 USB Dual Socket Directional RF Wattmeter

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 Forward and Reflected Power in Watts and dBm

 Automatically Calculates SWR and Return Loss

 Internal Dual Socket 7/8” Line Section

 Switch for Forward or Reflected Power

 Quick Match Connectors

 Uses Standard Gold Plated Plug-In Elements

 Two Year Limited Warranty


The new Model 81041 is a portable, self-contained RF Wattmeter that features a studio-quality analog meter and USB interface.  Numeric, analog meter, and bar graph data are simultaneously displayed on a PC’s monitor.  The functions indicated are Forward and Reflected Power, both in Watts and dBm, plus an automatic calculation of SWR and Return Loss.

The internal dual socket line section and forward/reflected switch gives the user the ability to display either forward or reflected on the analog meter, while both are displayed simultaneously on the PC.

Our use of a rugged shock mounted meter with a mirror-backed scale along with superior taut band technology, provides reliable and accurate readings of either forward or reflected power on the meter.

The Model 81041 uses standard elements to detect average RF power from 100 mW to 10 kW over a Frequency Range of 2 MHz to 2.3 GHz.  Software and a detachable six foot USB cable are included for a simple installation on any PC using Windows Vista, 2000, XP or NT.  No additional cables, AC or DC power adapters, batteries or custom remote sensors are required.

Type N female connectors are standard with over 20 interchangeable QM connectors available such as 7/16, SMA, UHF, BNC and TNC types in male and female genders.

Your confidence in the quality and dependability of the Model 81041 Wattmeter is assured with the Coaxial Dynamics Two Year Limited Warranty.


Power Range

100 mW to 10 kW

Frequency Range

2 MHz to 2.3 GHz


1.05:1 Max (with Type N connectors)


5% when used with proper Coaxial Dynamics
line sections and elements


50 Ohms Nominal


Type N Female standard (see note below)

Power Requirements

Less than 100 mA via USB Port

Dimensions (H x W x D)

7.25 in. (18.4 cm) x 5 in. (12.7 cm) x 4 in. (10.2 cm)


4.2 lbs. (1.9 kg)


Textured Blue Polyurethane Enamel

Note: Other Quick Match Connectors are available.

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Copyright 2019 Coaxial Dynamics (A CDI Industries, Inc. company).
All rights reserved. Last updated: Tuesday, September 24, 2019.