5'48+%'"#0&"4'2#+4

If your intercoms are not performing as they should, take them to your local RadioShack store for assistance. Modifying or tampering with the intercom’s internal components can cause a malfunction and might invalidate its warranty and void your FCC authorization to operate them.

52'%+(+%#6+105

Receiver Section

20 dB Quieting Sensitivity (Local)

2 µV

Frequency Accuracy

0 KHz

Image Rejection (12dB SINAD)

32 dB

Spurious Rejection (12dB SINAD)

40 dB

Channel Selectivity ± 500KHz

50 dB

Squelch Threshold

20 dB SINAD

S/N at 1mV input, ± 38KHz deviation (A-weight) (@ROP)

.... 60 dB

Distortion at 1K Hz, ± 38K Hz Deviation (@ROP)

1%

10% THD Output Power

500 mW

Current Drain at Reference Output

160 mA

Transmitter Section

RF Power Output at 50Ω

+3 dBm

Harmonic and Spurious Radiation Suppression

40 dB

MIC Input Sensitivity (@38 kHz Deviation)

2.5 mV

AUX Input Sensitivity (@38 kHz Deviation)

150 mV

Sub Tone Deviation

10 KHz

Call Tone Deviation

35 KHz

Alert Tone Deviation

32 KHz

Total Harmonic Distortion

1%

Current Drain

55 mA

General Performance

Battery Low Indication

4.0

V

Minimum Operation Voltage (Battery)

3.5

V

Operation Range (line of sight)

200 feet

Overall Frequency Response (–3 dB Bandwidth)

300 - 10kHz

Current Drain at Standby Mode

18 mA

Charging Time for 80%

10 hour

Weather Alarm Input Sensitivity

5

V

VOX Sensitivity

13 mV

Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

Service and Repair

7

Page 7
Image 7
Radio Shack 43-3102 owner manual 548+%#0&42#+4, 52%++%#6+105, Receiver Section, Transmitter Section, General Performance

43-3102 specifications

The Radio Shack 43-3102 is a versatile and compact digital multimeter designed for both hobbyists and professionals in the electronics field. Known for its reliability and ease of use, this multimeter has carved a niche for itself among DIY enthusiasts, electricians, and technicians alike.

One of the standout features of the Radio Shack 43-3102 is its ability to measure a wide range of electrical values with precision. It can measure AC and DC voltage, up to 600 volts, making it suitable for various applications, from household electrical systems to complex electronics. Additionally, it measures current (up to 10 amps), resistance (up to 20 megaohms), and diode and continuity testing, providing users with a comprehensive toolkit for troubleshooting and diagnostics.

The 43-3102 incorporates a large, easy-to-read LCD display, which enhances readability under various lighting conditions. The screen displays values clearly, allowing users to take measurements effortlessly, even in dim environments. Furthermore, the multimeter features a hold function, which freezes the current reading on the display for easy reference, promoting accuracy during measurements.

The technology behind the Radio Shack 43-3102 includes a robust microprocessor for enhanced accuracy and reliability. This chip processes sensor data to deliver precise readings across the different measurement modes. The multimeter also features automatic ranging, which eliminates the need for users to manually select the range for measurements, simplifying the operation and reducing the potential for errors.

Portability is another key characteristic of the 43-3102. Its compact design and lightweight build make it easy to carry, whether you’re working at a job site or tinkering in your home workshop. Additionally, the durable casing protects it from bumps and drops, ensuring that it can withstand the rigors of daily use in multiple environments.

Furthermore, the multimeter is equipped with a 9V battery compartment, which is easy to access, allowing for quick battery replacements.

In conclusion, the Radio Shack 43-3102 digital multimeter is an indispensable tool for those working in the field of electronics. With its extensive features, precise measurements, and user-friendly design, it serves as both a reliable companion for professionals and an educational tool for beginners exploring the world of electronics. Whether measuring voltage, current, or resistance, the 43-3102 stands out as a practical and efficient choice.