OPTOELECTRONICS, INC
RF Test Equipment, TSCM and Counter Surveillance Equipment
M1
Frequency Counter
Useful for testing two way radios for frequency measurement in the field or using on the bench, the M1 is a full range 50Hz-2.8GHz frequency counter. Using an embedded micro-controller along with our powerful custom OE40 counter IC, the M1 provides advanced features such as our Patented Digital Auto Filter, Digital Auto Capture and Data Storage. The M1 BNC input may be switched from 50OHm to 1 Meg OHm for use with a scope or low pass audio probe for in-circuit measurement of test points and oscillators.
TCXO Option
The M1 has an optional high stability 1ppm TCXO timebase. This is twice as stable over time and temperature than most frequency counters.
Features
-
50Hz-2.8GHz frequency range
-
4-5 hour battery operation
-
10 digit LCD display
-
16 segment RF signal strength bargraph
-
100 internal memories
-
High speed 250MHz direct count with 1Hz per second resolution
-
10 gate times from 100 microseconds to 10 seconds
-
High impedance and 50 Ohm amplifiers for full range 50Hz - 2.8GHz coverage
-
Includes NiCads and power supply
-
Switchable 1 Meg Ohm input for use with a scope or low pass audio probe
-
Standard 1 ppm timebase

DB32 antenna shown sold separately
M1 $549
Technical Specifications
Frequency Range 50Hz-2.8GHz
Input Impedance 50 Ohm / 1Meg Ohm
Input Coupling AC
Max Input +15dBm (50mW) 50V AC+DC @ 1 Meg Ohm
Frequency Time Base 10MHz +/- 1ppm initial accuracy / 1ppm TCXO option
Display 9 digit LCD
Size 3.7"H x 2.75"W x 1.2" D
Power Requirements 9-12VDC, 300-1000mA, center +
Battery Internal rechargeable 4 cell NiCd
Battery run time 6-8 hours on full charge

M1
Frequency Counter
Useful for testing two way radios for frequency measurement in the field or using on the bench, the M1 is a full range 50Hz-2.8GHz frequency counter. Using an embedded micro-controller along with our powerful custom OE40 counter IC, the M1 provides advanced features such as our Patented Digital Auto Filter, Digital Auto Capture and Data Storage. The M1 BNC input may be switched from 50OHm to 1 Meg OHm for use with a scope or low pass audio probe for in-circuit measurement of test points and oscillators.
TCXO Option
The M1 has an optional high stability 1ppm TCXO timebase. This is twice as stable over time and temperature than most frequency counters.
Features
-
50Hz-2.8GHz frequency range
-
4-5 hour battery operation
-
10 digit LCD display
-
16 segment RF signal strength bargraph
-
100 internal memories
-
High speed 250MHz direct count with 1Hz per second resolution
-
10 gate times from 100 microseconds to 10 seconds
-
High impedance and 50 Ohm amplifiers for full range 50Hz - 2.8GHz coverage
-
Includes NiCads and power supply
-
Switchable 1 Meg Ohm input for use with a scope or low pass audio probe
-
Standard 1 ppm timebase
Technical Specifications
Frequency Range 50Hz-2.8GHz
Input Impedance 50 Ohm / 1Meg Ohm
Input Coupling AC
Max Input +15dBm (50mW) 50V AC+DC @ 1 Meg Ohm
Frequency Time Base 10MHz +/- 1ppm initial accuracy / 1ppm TCXO option
Display 9 digit LCD
Size 3.7"H x 2.75"W x 1.2" D
Power Requirements 9-12VDC, 300-1000mA, center +
Battery Internal rechargeable 4 cell NiCd
Battery run time 6-8 hours on full charge

DB32 antenna shown sold separately

M1 $549
Input Sensitivity
50 Ohm 10MHz-2.8GHz 1 Meg Ohm 50Hz-40MHz
<10mV @ 10MHZ 25mV @ 1kHz-10MHz
<3mV @ 27MHz 40mV @ 10Mhz-40MHz
<3mV @ 150MHz
<5mV @ 450MHz
<5mV @ 800MHz
<12mV @ 1GHz
<25mV @ 2GHz
<100mV @ 2.8GHz
Download M1 manual
Frequency Display Resolution
Range Gate Select Gate Time LSD Sample Display
250MHz 1 .0001S 10kHz 250.00
2 .001S 1kHz 250.000
3 .01S 100kHz 250.0000
4 .1S 10Hz 250.00000
5 1S 1Hz 250.000000
6 10S 0.1Hz 250.0000000
2.8GHz 1 .0064S 10kHz 2800.00
2 .064S 1kHz 2800.000
3 .64S 100Hz 2800.0000
4 6.4S 10Hz 2800.00000