fc1002_manual
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Introduction

The Aceco FC1002 hand-held frequency counter is a practical counter, even advanced features such as field strength measurement are incorporated. It is compact, truly pocket sized, test instrument designed for ease of use and dependable performance. Supplied as a complete with internal NiCd pack, AC wall charger and 7 section telescopic antenna.

Specifications
 

Frequency range

1 MHz - 3 GHz

Weight

210 g

Size

80 mm high x 68 mm wide x 31 mm deep

Impedance

50 Ohms (BNC Socket)

Case

Stamped aluminum with black anodized finish

Battery

Internal 4 x AA 600 mAH NiCd pack

Power

9 VDC 300 mA

Timebase

Less than 1 PPM at room temperature

Features

  • 10 digit Liquid Crystal Display
  • Low power consumption (Average 6 hour battery life)
  • Supplied with NiCd pack, AC wall charger and telescopic antenna
  • Hold switch to lock display
  • Low battery indicator
  • Ultra sensitive synchronous detector 16 section bargraph to show RF signal strength
  • High speed 300 MHz direct counter with 0.1 Hz resolution
  • 4 selectable gate speeds

Controls

  1. Power Switch - This slide switch turns the counter on and initiates a 2 second test of all the LCD segments.
  2. Range Switch - This should be switched to the 300 MHz position for frequencies between 1 MHz and 300 MHz and switched to the 3 GHz position for frequencies between 10 MHz and 3 GHz.
  3. Hold Button - This holds the current display and stops the counter from counting.
  4. Gate Button - This selects the gate or measurement time. A longer gate time allows counting for longer period and results in higher accuracy.
  5. Calibration - The calibration adjustment opening is located on the front panel of the counter. This allows access to the trimmer capacitor that provides about a 10 PPM adjustment range of the time base oscillator. This is not usually necessary but to do so read a signal of an known frequency before adjusting the trimmer for correct frequency display. If you calibrate at 4.1943 MHz or above then the counter will be more accurate.

Warranty

Aceco Electronics, Corp. guarantees the counter and accessories for one year against defects in manufacture. This warranty does not cover items that have been modified, subject to unauthorized repairs, misuse or abuse. This warranty does not cover damage caused by excessive power levels applied to the signal input. Never make any kind of connection between the counter and a transmitter.

Hints And Tips

  1. NiCd Operation
    This frequency counter can operate for up to six hours from its fully charged NiCd batteries. They are charged when the unit is plugged into the supplied AC/DC adapter. Full recharge will occur over12 to16 hours. Before recharging the batteries you should be deep cycled occasionally by allowing them to completely discharge to maintain maximum battery capacity. The NiCd batteries should last for several years. However, it is a good idea to check them every twelve months for signs of corrosion or leakage. Always replace the whole set if any one cell fails.
     
  2. Signal Input
    When using the counter with an antenna for signal pick up, random frequencies may appear on the display. This is quite normal and is caused by the high gain of the receiver circuits which amplify noise in the absence of a strong readable signal. Never get the unit too close to a transmitter as internal damage will result.
     
  3. Antenna Selection
    The supplied telescopic antenna is best for general purpose use. This is because its length can be adjusted to suit the frequency required. Usually you will want a shorter antenna for UHF and a fully extended one for VHF / HF.
     
  4. Reception Distance From Transmitter
    The distance from which you will be able to receive frequencies will depend upon the type and location of the transmitting antenna, transmitter output power and the frequency in use.
    Some typical distances are:
     

Cordless Phone

0.3 meters

Cellular Phone

3 - 20 m

CB radio

2 - 8 m

VHF Two Way Radio

3 - 30 m

Input Sensitivity ( Typical )

 

Amplifier

50 Ohm

Impedance

50 Ohm VSWR less than 2:1

Range

1 MHz - 3 GHz

Sensitivity

< 0.8 mV at 100 MHz
< 6 mV at 300 MHz
< 7 mV at 1.0 GHz
< 100 mV at 2.4 GHz

Max. input

15 dBm

RF Signal Strength Bargraph

 

Frequency

1st Segment

Full Scale

27 MHz

7 mV

100 mV

150 MHz

5 mV

90 mV

800 MHz

10 mV

200 mV

Frequency Display Resolution

 

Range

Gate Time (Seconds)

LSD

Sample Display

300 MHz

0.0625

10 Hz

300.00000 MHz

 

0.25

1 Hz

300.000000 MHz

 

1.0

1 Hz

300.000000 MHz

 

4.0

0.1 Hz

300.0000000 MHz

3 GHz

0.0625

1000 Hz

3000.000 MHz

 

0.25

100 Hz

3000.0000 MHz

 

1.0

10 Hz

3000.00000 MHz

 

4.0

10 Hz

3000.00000 MHz


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