INTRODUCTION

The RA1M1000A USB Smart RF power sensors has been designed to provide quick and user friendly way of measuring CW, FM, AM and pulse RF output levels of various RF circuits such as FM transmitters, amateur radios, CB radios, RF amplifiers and similar.

This RF power meter can be used to measure:

• RF signal between -40 dBm up to +15 dBm (0.1 uW to 32 mW) directly
• With optional attenuators, RF power levels up to 50 or 100 W (or more with other attenuators)
• RF power in pulsed mode (great for high power amplifier development)
• RF insertion loss of various coaxial cables and RF attenuators

MAIN FEATURES

• Wide dynamic range, 55 dB
• Wide RF bandwidth, 1000 MHz
• Wide video bandwidth, 5MHz
• Excellent measurement accuracy, 2% typical
• Excellent input reflection coefficient, better than -20dB
• Industry standard Type N connector
• Robust USB type B interface
• No external power supplies required
• Non-volatile memory to store calibration data
• Fully enclosed metal body
• Ability to measure absolute or relative RF power
• Ability to add offset to include attenuators
• Ability to log data over extended period of time
• Ability to change measurement units
• Ability to hold max measurement value

• Ability to measure peak power in pulsed mode

PACKAGE CONTAINS

• Smart USB RF Power Sensor (measures RF power between -40 dBm and 15 dBm)
• 6ft long USB cable

• USB flash drive with complementary software and user manual (pdf)

OPTIONAL

• 40dB, 50W attenuator (for broadband RF power measurements up to 50W)

• 40dB, 100W attenuator (for broadband RF power measurements up to 100W)

WARRANTY

• 1 Year limited warranty from date of purchase (parts and labor, excludes physical damage and damage due to excessive RF input power)

YOUTUBE VIDEOS

• Introductory video: https://youtu.be/DiorVYaUw6U
• 2m amateur radio output power measurement: https://youtu.be/y1pn_dK-Xms

ELECTRO-MECHANICAL SPECIFICATION

Electrical
Parameter	Condition	Min.	Typ.	Max.	Unit
Frequency range (model specific)	-	1	-	1000	MHz
Dynamic range (model specific)	-	-40	-	+15	dBm
Return loss	1 MHz 1000 MHz	- -	-32 -28	- -	dB
VSWR	1 MHz 1000 MHz	- -	1.05 1.08	- -	-
Measurement tolerance	-	-	±2 ±0.1	±5 ±0.2	% dB
DC voltage requirement (via USB)	-	4.0	5.0	5.5	V
DC current requirement (via USB)	-	-	150	-	mA
Refresh rate	-	-	60	-	ms
Pulse mode frequency	-	-	1	3	kHz
Pulse mode duty cycle	100 Hz 500 Hz 1 kHz 3kHz	1 5 5 20	10 10 10 20	95 95 95 85	%

Mechanical
Size (L x W x D)	4.0 x 1.0 x 1.0, (102 x 25 x 25)	Inches, (mm)
Weight	0.22, (0.1)	Lbs. (kg)
RF input connector	Type N, male	-
USB interface connector	USB, type B	-
USB cable length	6.0, (1.8)	Ft., (m)