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Frequency Counters

Hand-Held 3GHz Universal Counter

Model: F-2800

A compact, pocket-size test instrument, designed for ease of use and dependable performance. Advanced features such as Field Strength Measurement are incorporated in the F-2800.

 

Features:

50ohm input for full range
1MHz to 3GHz coverage

High-speed 300MHz direct count with 1Hz per second resolution

10-digit LCD display

Ultra-sensitive synchronous detector bargraph with 16-segment display of FF signal strength

Low-power consumption 6-hour NiCd battery operation

Low battery indicator

Hold switch locks display

Supplied with telescoping whip antenna and AC wall adapter

Specifications
Input Sensitivity (Typical) Frequency Display Resolution
Amplifier 50 ohm Range Gate Time LSD
Impedance 50 ohm, VSWR<2:1 300MHz 0.0625 sec.
0.25 sec.
1 sec.
4 sec.
10Hz
1Hz
0.1Hz
10Hz
Range 1MHz - 3GHz
Sensitivity <0.8mV @ 100MHz
<6mV @ 300MHz
<7mV @ 1GHz
<100mV @ 2.4GHz
Max. Input 15dBm 3GHz 0.0625 sec.
0.25 sec.
1 sec.
4 sec.
1000Hz
100Hz
10Hz
10Hz
RF Signal Strength Bargraph Typical Reception Distance from Transmitter
Frequency
27MHz
150MHz
800MHz
1st Segment
7mV
5mV
10mV
Full Scale
100mV
90mV
200mV
Cordless Phone
Cellular Phone
CB Radio
VHF Two-way Radio
UHF Two-way Radio
0.3 meters
3-20 meters
2-8 meters
3-30 meters
3-30 meters
Cabinet: Stamped aluminum, black anodized finish

Display: 10-Digit Liquid Crystal Display

Size: 6-1/8" (H) x 2-5/8" (W) x 1-1/4" (D)

Weight: 8 oz.

Battery: Internal 4 "AA" 600mAH NiCd battery pack

Power: 9Vdc, 300mA wall plug adapter

Time Base: <1ppm typ. at room temperature

Optional Accessory: C-2800 Case with Belt Clip

10 Function 1.3GHz Universal Bench Counter

Model: F-1300

The F-1300 is a modern microcontrolled counter designed for a wide range of service and laboratory applications. The unit features 10 main functions: Frequency, Period, Totalize, RPM, Time (max, min, avg), Math and Pulse Width. All functions are displayed on large green LED digits. It is housed in a rugged lightweight case. This counter features a low-pass filter which enables the limitation of high frequency noises from low-frequency measurements.

 

Features:

Frequency - .05Hz to 1.3GHz 3 ranges

Period - Can read 60Hz to 60.000000 F-1/T

Totalize - Counts to 199,999,999

RPM - 3 to 2099994 RPM

Duty Cycle

Max/Min/Avg with Time

Stop-watch set .2 sec to 100 hrs

Math functions

Timer - 2 sec to 99 days

Pulse Width - 0.1 µs to 66666.6ms

Specifications
CH-A
Frequency
Impedance
Sensitivity
Filter
Period
Totalize
Ratio
A-B
R.P.M
Duty
Pulse
0.05Hz to 120 MHz
1Mohm shunted by less than 40pF
25mVrms
Low pass, -3dB point of 100kHz
19999999.9µs to 0.0083µs
0 - 200MHz
CH-A (frequency) / CH-B (frequency)
CH-A (frequency) - CH-B (frequency)
3 to 2099994 RPM
0.01% to 99.99%
0.1µs to 66666.6µs
CH-B
Frequency
Sensitivity
Impedance
10Hz to 2.5MHz
TTL level
<100kohm shunted by <100pF
CH-C
Frequency
Impedance
Sensitivity
50MHz to 1.3GHz prescaled by 64
50 ohm
15mV (-17.4 dBm)
General
Time Base Crystal Control: 10MHz
Aging Rate: +/-10 ppm/year
Display: 9 digit 0.56" seven-segment digits
Power Requirement: 115V, 230V (+/-15%)
Dimensions: 3-29/32" H x 10-13/16" W x 11-11/16" D
Weight: 4 lbs. 3.2 oz.
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