Microwave Video Transmitter modules

VIDEO COLOUR or MONOCHROME &
Stereo AUDIO  TRANSMITTER &
RECEIVER Sub-Assemblies

TX/RX KitSet $169

Sold-Out & Discontinued
following components are still available

TX/PCB TX board $39

RX/M RX module $49

Accessories
Ant-Whip Antenna $20
Ant-Whip/RA
Antenna $25
Ant-Y8
Antenna (Gold ?) (A) $99 / (B) $119
Ant-Y12
Antenna (Gold ?) (A) $119 / (B) $139
Ant-Y15
Antenna (Gold ?) (A) $149 / (B) $169
Ant-P18
Antenna (Gold ?) (A) $89 / (B) $99
Ant-P21
Antenna (Gold ?) (A) $109 / (B) $129
Ant-P24
Antenna (Gold ?) (A) $149 / (B) $169

Cable-316/23 Cable $25
Cable-316/50
Cable $35
Cable-316/500
Cable $79
Cable-223/450
Cable $89

SMA-N Adaptor $10
SMA-TNC
Adaptor $10

USES

Wireless Video & Audio RF Transmission link for covert spy and Cable-Free Wireless CCTV Video Surveillance Cameras, Quad Screen Processors, Switchers, Monitors, Multiplexers, Video Recorders, Digital PC Recording.

Portable Wireless Video Transmitter & Receiver for covert pinhole video camera surveillance in Shops - Showrooms - Exhibitions - Work Places - Casinos - Theatres - Concerts - Nightclubs - Outdoor Events - Cinemas - etc. Portable Home Video Surveillance to monitor Swimming Pools - Caravans - Boats - etc.

Observation of Horses - Show Animals - Livestock - etc during transportation in Floats - Trucks - etc.

Automobile Rear Vision and general observation Video Systems for Caravans - Large Boats - Semi Trailers - Road Trains - Aircraft - Buses - Modern or Historic choo.. choo.. Trains - etc.

Wireless AV link for VCRs, Satellite TV, DVD, PCs, Pay TV, MDS, Cable TV, Lightweight Compact Video Cameras for shooting video program material, Remote Control: Cars - Boats - Hovercraft - etc.

 

Module may be fitted directly to Interface PCB or the module section of the PCB may be snapped-off and the Module connected to PCB with wires.

Phase Locked Loop (PLL) frequency control for stability.

IC Bus Control for flexibility and control of Transmit frequency.

Switch TX and Push-Button RX channel selection (Australia = 2 * Export = 4).

Video and Audio signals are Frequency Modulated for better immunity against interference and improved signal to noise ratio.

 

Transmitter MODULE
no longer available
Output: Antenna 75 ohm impedance unbalanced ** SMA female connector. Inputs: Power 12 VDC. Audio L & R ~ 1400 ohms 1 v p-p. Composite Video 75 ohms 1 v p-p. Serial Data. Serial Clock. Dimensions: ~ 45 mm wide, ~ 56 mm deep, ~ 16 mm high, excludes pins and socket, ~ 51 grams.

Transmitter Interface PCB
Inputs: Power 12 VDC Regulated 125 ~ 185 mA, 2.1 mm x 5.5 mm socket, center pin positive. Audio L & R ~ 1400 ohms 1 v p-p RCA sockets. Standard Composite Video 1 v p-p 75 ohms RCA socket. Other: Channel select switches. Video level potentiometer. Dimensions: ~ 125 or 76 mm wide, ~ 60 mm deep, ~ 15 mm high, excludes sockets, ~ 33 grams.


Receiver MODULE
Inputs: Antenna 75 ohms impedance unbalanced ** SMA female connector. Power 5 VDC. Serial Data. Serial Clock. Tuning 8 ~ 12 VDC.  Outputs: Base-Band. AFT. Dimensions: ~ 45 mm wide, ~ 58 mm deep, ~ 15 mm high, excludes pins and socket, ~ 51 grams.

Receiver Interface PCB
no longer available
Input: Power 13.5 ~ 16 VDC 120 ~ 180 mA, 2.1 mm x 5.5 mm socket, center pin positive. Outputs: Audio L & R line level 1 v p-p RCA sockets. Standard Composite Video 1 v p-p 75 ohms RCA socket. Other: Channel select Push-Button. LED channel indicators. Video level potentiometer. Dimensions: ~ 148 or 106 mm wide, ~ 59 mm deep, ~ 15 mm high, excludes sockets, ~ 43 grams.

TX/RX KitSet consists of TX and RX Modules and Interface PCBs, Modules and PCBs are assembled and fully tested. Assembly involves soldering Modules to PCBs (or via wires) and enclosure in a housing, no tuning or alignment required. All components are fitted to PCBs including Pre-Programmed Microcontrollers, Inductors, Sockets, Switches, ICs, Capacitors, etc., connection and operating notes are supplied. A simple 1/4 wave antenna consisting of a straight piece of ~ 35 mm x 0.9 mm wire, inserted into SMA Antenna socket and retained with Heat Shrink Tubing is adequate for short range applications.

 

Video Transmitters may be legally used without a licence within the *LIPD 2400 ~ 2463 MHz Band and 10 mW *EIRP limit.

RANGE

Depends on surroundings, obstructions, structures, antenna gain, other transmitters, EMI and RFI in the vicinity.

In ideal, clear, Line-of-Sight conditions

Vertical Whip antennas up to ~ 100 metres.

Correctly matched and aligned Yagi 15 dBi antenna on Receiver up to ~ 600 metres.

Correctly matched and aligned Parabolic 24 dBi antenna on Receiver up to ~ 1 600 metres.

*

ANTENNAS

Range and Signal to Noise Ratio may be improved by fitting a higher gain antenna to Receiver. For maximum signal strength TX and RX antennas must be the same polarity, that is both oriented Vertically or Horizontally.

Ant-Whip ~ 3 dBi gain, ~ 9 mm diameter, ~ 107 mm long Straight, ~ 87 mm long Folded, ~ 11 grams. SMA Male Connector.
Folding Straight or Right-Angle 2.4 GHz 3 dBi Gain Microwave Whip Antenna

Ant-Whip/RA Right-Angle, Semi-Flexible, ~ 3 dBi gain, ~ 6.7 mm diameter, ~ 110 mm long, ~ 7 grams. SMA Male Connector.
Right Angle Semi-Flexible 2.4 GHz 3 dBi Gain Microwave Whip Antenna

 

Ant-Y8 2.4 ~ 2.5 GHz, ~ 8 dBi gain. 6 Element, ~ 290 x 95 x 35 mm excluding Clamps, ~ 530 grams. (volumetric shipping weight ~ 1.2 kg)

Ant-Y12 2.4 ~ 2.5 GHz, ~ 12 dBi gain. 10 Element, ~ 430 x 95 x 35 mm excluding Clamps, ~ 600 grams. (volumetric shipping weight ~ 1.6 kg)

Ant-Y15 2.4 ~ 2.5 GHz, ~ 15 dBi gain. 15 Element, ~ 650 x 95 x 35 mm excluding Clamps, ~ 680 grams. (volumetric shipping weight ~ 2.30 kg)

Dipole ~ 50 ohms impedance, ~ 500 mm RG-142 Coax cable with SMA Male Plug, ~ 140 mm x ~ 70 mm Aluminium mounting plate, plated Steel Clamps, Nuts, Washers, Brass Spacers.
High Gain Directional Yagi  2.4 GHz Microwave Antenna

 

Ant-P18 2.4 ~ 2.5 GHz, ~ 18 dBi gain sectional Grid Parabolic with ~ 50 ohm impedance Dipole. Horizontal and Vertical polarisation mounting points. Fitted with ~ 800 mm RG-8/U Coax cable and Male "N" Connector **. Reflector ~ 390 mm x ~ 545 mm. Weight ~ 1.7 kilograms. Supplied with Hor/Vert Clamp hardware. Delivery by Road to most locations $25 ~ $30.
18 dBi 2.4 GHz Sectional Parabolic Microwave Grid Antenna

pictured in Vertical Polarity mode * Mast not included

Ant-P21 2.4 ~ 2.5 GHz, ~ 21 dBi gain sectional Grid Parabolic with ~ 50 ohm impedance Dipole and Sub-Reflector. Horizontal and Vertical polarisation mounting points. Fitted with ~ 800 mm RG-8/U Coax cable and Male "N" Connector **. Reflector ~ 395 mm x ~ 885 mm. Weight ~ 2.4 kilograms. Supplied with Hor/Vert Clamp hardware. Delivery by Road to most locations $25 ~ $30.
21 dBi 2.4 GHz Sectional Parabolic Microwave Antenna
pictured in Vertical Polarity mode * Mast not included

Ant-P24 2.4 ~ 2.5 GHz, ~ 24 dBi gain sectional Grid Parabolic with ~ 50 ohm impedance Dipole and Sub-Reflector. Horizontal and Vertical polarisation mounting points. Fitted with ~ 750 mm RG-8/U Coax cable and Male "N" Connector **. Reflector ~ 590 mm x ~ 900 mm. Weight ~ 3.5 kilograms. Supplied with Hor/Vert Clamp hardware. Delivery by Road to most locations $25 ~ $35.
24 dBi 2.4 GHz Sectional Parabolic Microwave Antenna 24 dBi Sectional Parabolic Microwave Grid Antenna
pictured in Vertical Polarity mode * Mast not included

Mounting Positions for Horizontal - Vertical - 45 Degree Polarisation

 

SMA-N Adaptor SMA male to N female, for Parabolic antennas.

 

Coax Extension Cables with SMA male & female connectors: 23, 50 & 500 centimetre RG-316, 450 centimetre RG-223, suitable for Whip & Yagi antennas & Parabolic antenna with SMA-N adaptor.


Cable-316/23 & Cable-316/50. Attenuation ~ 60 dB / 30 metres @ 3 GHz

Cable-316/500. Attenuation ~ 60 dB / 30 metres @ 3 GHz

~ 4.5 metre RG223 Extension Cable
Cable-223/450. Attenuation ~ 16.7 dB / 30 metres @ 3 GHz

NOTE: Parabolic and Yagi are directional antennas.

Whip antennas are for most practical purposes omni or non directional when used vertically.

Antenna Gain... what does it mean ???
a simplified explanation

Received signal strength from an antenna with 3 dBi gain will be double that from an antenna that has 0 dBi gain, received signal strength from a 6 dBi will be double that from a 3 dBi and so on... An increase in antenna gain of 3 dBi is approximately equal to doubling the transmitter output, received signal strength or range can be increased by raising antenna gain or transmitter output. Range can be doubled by either increasing antenna gain by 6 dBi or quadrupling the transmitter output.

The maximum allowed 2.4 GHz LIPD Video Transmitter output power is 10 milliwatts (mW) EIRP (in Australia), increasing transmitter output is illegal and therefore not an option.

Increasing the gain of the receiver antenna is an alternative to increasing transmitter output.
In very simple terms: increasing antenna gain from 0 dBi to 3 dBi is equivalent to raising the transmitter output from 10 mW to ~ 20 mW, 5 dBi ~ 33 mW, 8 dBi ~ 66 mW, 12 dBi ~ 160 mW, 15 dBi ~ 320 mW, 18 dBi ~ 640 mW, 21 dBi ~ 1280 mW, 24 dBi ~ 2560 mW. 

* LIPD = Low Interference Potential Devices
* EIRP = Equivalent Isotropically Radiated Power
Source: Australian Communications Authority

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