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APPENDIX

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RF MODULE

The RF module, as the name suggests, operates at Radio Frequency. The

corresponding frequency range varies between 30 kHz & 300 GHz. In this RF system, the

digital data is represented as variations in the amplitude of carrier wave. This kind of

modulation is known as Amplitude Shift Keying (ASK).

This RF module comprises of an RF Transmitter and an RF Receiver. The

transmitter/receiver (Tx/Rx) pair operates at a frequency of 434 MHz.

RF TRANSMITTER

An RF transmitter receives serial data and transmits it wirelessly through RF

through its antenna connected at pin4. The transmission occurs at the rate of 1Kbps -

10Kbps.

PIN DIAGRAM

PIN DESCRIPTION

Pin No Function Name

1 Ground (0V) Ground

2 Serial data input pin Data

3 Supply voltage: 5V Vcc

4 Antenna output pin ANT

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RF RECEIVER:

An RF receiver receives the transmitted data wirelessly through RF through its

antenna connected at pin8. The transmission occurs at the rate of 1Kbps - 10Kbps.

PIN DIAGRAM

PIN DESCRIPTION

APPLICATIONS

Telemetry

Small-range wireless network

Wireless meter reading

Access control systems

Wireless home security systems

Pin No Function Name

1 Ground (0V) Ground

2 Serial data output pin Data

3 Linear output pin; not connected NC

4 Supply voltage; 5V Vcc

5 Supply voltage; 5V Vcc

6 Ground (0V) Ground

7 Ground (0V) Ground

8 Antenna input pin ANT

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SPECIFICATIONS

TRANSMITTER SPECS:

Working voltage: 3V~12V

Working current: max≤40mA (12V), min≤9mA(3V)

Resonance mode: sound wave resonance (SAW)

Modulation mode: ASK /OOK

Working frequency: 315MHz-433.92MHz, customized frequency is available.

Transmission power: 25mW (315MHz at 12V)

Frequency error: +150kHz (max)

Velocity: ≤10Kbps

Self-owned codes: negative

Aerial Length: 24cm (315MHz), 18cm(433.92MHz)

Dimensions: 43x12x5mm

Weight: 2g

RECEIVER SPECS:

Working voltage: 5.0VDC +0.5V

Working current: ≤2.5mA (5.0VDC)

Working principle: superheterodyne

Working method: OOK/ASK

Operating frequency: 315MHz, 433.92MHz, customized frequency is available;

Bandwidth: 2MHz (315MHz, having result from testing at lowing the sensitivity

3dBm)

Sensitivity: excel –105dBm (50Ω)

Output signal: TTL electric level signal entire transmit

Dimensions: 19x12x5.5mm

Weight: 1.6g

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WIRELESS CAMERA WITH AV RECEIVER

Wireless security cameras are closed-circuit television (CCTV) cameras that

transmit a video and audio signal to a wireless receiver through a radio band. Many

wireless security cameras require at least one cable or wire for power; "wireless" refers to

the transmission of video/audio. However, some wireless security cameras are battery-

powered, making the cameras truly wireless from top to bottom.

The term audio/video receiver (AVR) or Home Theatre Receiver is also used to

distinguish the simpler stereo receiver from the multi-channel audio/video receiver (home

theatre receiver), though the primary function of both is amplification.

Product Description Product Features:

Range of 70 TO100 feet "straight-line of sight", can go through walls but

ranges vary.

Resolution is 380 TV lines

Output power: 200mW

Low minimum illumination of 3 lux.

Camera/transmitter operates on one 9V battery or DC 9V adaptor (included).

Receiver requires DC 12V adapter (included), output to any VCR or T.V.

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Hi Resolution - Color wireless cordless camera

Just Fix it to your TV or VCR and record the thing

Easy Installation process

Easy Start Process

Excellent Resolution

Can gather sensitive information

To Transmit live video footage of your parties

To keep a watch on who is coming and going

Wireless Range is approximately 40 to 60 feet

Just fix it to your tv

Easy installation process

Easy start process

Excellent resolution

Wireless audio, video camera with transmitter and receiver

It is an audio, video surveillance for security

One can hide it easily

Camera is as tiny as pinhole camera with excellent video, audio clarity like

handy cam

Hi resolution - color wireless cordless camera Package includes:

1 X Wireless camera

1 X Video Receiver

1 X Antenna

1 X 110V /220V AC 8V adapter for the camera (camera can either use battery

or the 8V adapter)

1 X Battery clip

1 X 110v /220V AC 12V adapter for the receiver, audio/video cable (to your

TV/VCR) and operating instructions

Note-voice can be listen when someone speaks in front of camera

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