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Small wireless Full-HD video transmission without latency

Writer's picture: skoopiaskoopia

Updated: May 20, 2021

Ideal solution for industrial applications looking for wireless solutions without latency, such as UAV, elevators, pipe inspection robots, mechanical robots, hoists. Any setting in which improved movement freedom, or reduction of cabling is required.

wireless video transmission without latency, No latency video transmission
Wireless video transmission without latency -15AT-W

Full-HD wireless AHD/TVI/CVBS transmission is the ideal step up to Full-HD while replacing CVBS wireless modules. The skoopia 15AT-W wireless AHD/TVI/CVBS transmittor and receiver unit is capable of up to 500 meters wireless communication for 1080p30/25 AHD/TVI signals.


Key advantages AHD wireless versus WiFi wireless:

  • No latency

  • Affordable

  • Small

  • Lightweight

  • Straightforward connection (video in / video out)

It is a superior solution in any setting in which AHD or TVI is used as technology (for the known reasons of long transmission, easy cabling and no latency) where freedom of movement or avoiding difficult connectors is an issue.


To meet above challenges, and the known skoopia small size camera implementations demanding small size transmission units, we have made the 15AT-W wireless AHD video transmitter as small as possible (26mm x 46mm) and have also included the smart option that one can attach up to six AHD wireless video transmittors without latency to a single receiving unit. Moreover, we included a super small size u-fl (IPEX) connector for the antenna (default is SMA, which is sizeable), further emphasizing skoopia's focus on on super small high resolution video solutions without latency.


AHD wireless is the next revolution in any setup wanting to create freedom of movement, reducing complexity of cabling (slip rings, replacement requirements etc), or avoiding recalibration/ re-initiation of a video setup in a plural video environment.


Characteristics of wireless video transmission wihtout latency

  • Transmission over 500 meter

  • Low power mode for easy implementations

  • Full-HD streaming AHD/TVI 1080p30/25, but also 720p or CVBS

  • No latency

  • 5.8 GHz frequency

  • Affordable (pricing meets CVBS wireless pricing)

  • Up to 6 Full HD (1080p30) transmissions to 1 receiving unit parallel.

Wireless AHD is the Full-HD solution for existing CVBS applications requiring wireless transmission but want to step up to Full HD.

There are multiple applications that could benefit from wireless & Full-HD video transmission without inducing additional latency. Here are two examples helping to identify beneficial situations applying wireless AHD.


Avoid cable carrier or drag chain

Typical application areas are found in situations where significant movements are made over long distances, requiring video cable to be included in the setup. Successful examples of such situations: Cameras in elevators, cameras in hoists or cranes avoiding long moving ropes, typically guided by cable carrier or drag chain.


Avoid slip ring

Slip-rings are required if applications demand rotation freedom. However, slip rings, certainly in longer cabling instances and higher video frequencies, have a significant impact on the total video signal. Robot applications requiring multiple degrees of freedom and low latency high quality video greatly benefit of replacing multiple slip-rings with one wireless AHD solution.


Avoid changing connection

In applications in which single camera output is viewed, but plural camera systems will be used and exchanged often, up to six wireless connections can be established to a single receiving unit, further limiting difficult connection changes and instant exchange of the connection to be viewed.


The industrial wireless AHD/TVI/CVBS solution works seemlessly with all industrial AHD cameras, and particularly with the skoopia AHD/TVI/CVBS cameras.


board cameras

  • single board 14mm x 14mm Full HD AHD/TVI camera - skoopia 21C14AT

  • single board 26mm x 22mm Full HD AHD/TVI/CVBS camera - skoopia 21C26AT

block cameras

  • 10x optical zoom Full -HD AHD/CVBS block camera - skoopia 20Z10S-NF

  • 20x optical zoom Full -HD AHD/CVBS block camera - skoopia 20Z20A (no longer available)

  • 30x optical zoom Full -HD AHD/CVBS block camera - skoopia 20Z30A

The receiving output can be fed directly to the skoopia AHD native monitors (e.g. skoopia M215AT) or skoopia DVR (e.g. the skoopia D20AT-1 with smart overlay capability).

 

Small Full-HD Wireless AHD module - Tx (transmitter unit)


PRODUCT SPECIFICATION

5.8GHz 1080P AHD / CVI / TVI RX module


Wireless AHD transmittor unit


skoopia 15AT-WT


CONTENTS

1. General

2. Environmental Specification

3. Electrical Characteristics

3.1 DC Characteristics

3.2 Video Characteristics

3.3 RF Output Characteristics

4. Pin Assignment

5. Channel Selection

6. Mechanical Specification

6.1 Dimension

6.2 Application CKT


1. General


No. Items Description

1 Operation Frequency Range 2 CH : 5725 MHz ~ 5875 MHz

6 CH : 5200 MHz ~ 5950 MHz

2 Channel mode

TVI / CVI /AHD 1080P Mode TVI/CVI Mode In Band 2 CH Overlapping (a)

Expand 6 CH Non-overlapping (a)

AHD Mode In Band 2CH Non-overlapping (a)

Expand 6 CH Non-overlapping (a)

AHD 720p Mode Mode A In Band 4 CH Non overlapping (b)

Expand 4 CH Non-overlapping (b)

Mode B In Band 2CH Non-overlapping (b)

Expand 6 CH Non-overlapping (b)

3 Video Modulation FM

4 RF Antenna Port Impedance 50 Ω


2. Environmental Specification


No. Items Min. Typ. Max. Unit.

1 Operating Temperature -10 +60 °C

2 Storage Temperature -20 +70 °C


3. Electrical Characteristics


Testing Condition @ 25°C


3.1 DC Characteristics


No. Items Min. Typ. Max. Unit. Condition

1 Supply Voltage 4.0 5.0 5.25 V DC

2 Current @ 5V

28 dBm 750 850 1050 mA 12 dBm 250 265 300 mA

3.2 Video Characteristics


No. Items Min. Typ. Max. Unit. Condition

1 Imput impedence 75 Ω

2 Input level 1 Vp-p


3.3 RF Output Characteristics

No. Items Min. Typ. Max. Unit. Condition

1 TX Power @ 5V

Pin 7 (PS): GND 26 28 31 dBm

Pin 7 (PS): OPEN 9 11 14 dBm


4. Pin Assignment

Wireless Full HD AHD transmission - electrical pinning
Wireless AHD transmittor unit - pinning

Pin No. Name I / O Function Description

1 - -

2 GND - Ground

3 5V I DC power input ( 4 ~ 5V )

4 GND - Ground

5 Video In I Video Input

6 GND - Ground

7 PD I Open: Power On, Short to GND: Power Down

8 CH SW1 I Channel Setting SW1

9 CH SW2 I Channel Setting SW2

10 CH SW3 I Channel Setting SW3

11 RF Mode I RF Channel Mode setting

Hi : 1080P AHD / TVI / CVI (a)

Low : 720P AHD (b)

12 GND - Ground

13 GND - Ground

14 Video Mode Led O Video Mode Indication LED

Led on: Hi pre-empahsis = TVI/CVI

Led off: Low pre-empahsis = AHD

15 TVI/AHD I RF Channel setting

Hi TVI/CVI (a) AHD 720p (Mode B) (b)

Low: AHD (1080p) (a) 720 p (Mode A (b)

16 Video Mode Led I Video Mode Setting

Open: Hi pre-empahsis for TVI/CVI (Video Led On)

Short to GND: Low pre-empahsis for AHD (Video Led Off)

17 GND - GND

18 VREF - Reserved

19 GND - Ground (no pin header)

20 GND - Ground (no pin header)

20 N/A - -

21 ANT I RF Input ( No pin header )

Option : SMA Connector is available

22 GND - Ground ( No pin header )

23 GND - Ground ( No pin header )

** ANT IPEX O RF Output IPEX Connect ( Option )


PIN3 (5V) can be used to control the RF power output. Lowering the voltage will lower the RF output power.


5. Channel Selection


TVI / CVI Mode or AHD Mode (1080p) (a)


Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5824 MHz OPEN OPEN OPEN OPEN OPEN

CH2 : 5776 MHz OPEN OPEN GND OPEN OPEN

OutBand Non- CH3 : 5686 MHz OPEN GND OPEN OPEN OPEN

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND OPEN OPEN

CH5 : 5506 MHz GND OPEN OPEN OPEN OPEN

CH6 : 5416 MHz GND OPEN GND OPEN OPEN

CH7 : 5326 MHz GND GND OPEN OPEN OPEN

CH8 : 5236 MHz GND GND GND OPEN OPEN


AHD 1080p Mode

Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21


InBand Overlapping 2CH CH1 : 5840 MHz OPEN OPEN OPEN OPEN GND

CH2 : 5760 MHz OPEN OPEN GND OPEN GND


OutBand Non- CH3 : 5686 MHz OPEN GND OPEN OPEN GND

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND OPEN GND

CH5 : 5506 MHz GND OPEN OPEN OPEN GND

CH6 : 5416 MHz GND OPEN GND OPEN GND

CH7 : 5326 MHz GND GND OPEN OPEN GND

CH8 : 5236 MHz GND GND GND OPEN GND


AHD 720P Mode (b)

Mode A


Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5854 MHz OPEN OPEN OPEN GND GND

CH2 : 5818 MHz OPEN OPEN GND GND GND

CH3 : 5782 MHz OPEN GND OPEN GND GND

CH4 : 5746 MHz OPEN GND GND GND GND

OutBand Non- CH5 : 5640 MHz GND OPEN OPEN GND GND

overlapping 6 CH CH6 : 5550 MHz GND OPEN GND GND GND

CH7 : 5460 MHz GND GND OPEN GND GND

CH8 : 5370 MHz GND GND GND GND GND


Mode B

Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5824 MHz OPEN OPEN OPEN GND OPEN

CH2 : 5776 MHz OPEN OPEN GND GND OPEN

OutBand Non- CH3 : 5686 MHz OPEN GND OPEN GND OPEN

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND GND OPEN

CH5 : 5506 MHz GND OPEN OPEN GND OPEN

CH6 : 5416 MHz GND OPEN GND GND OPEN

CH7 : 5326 MHz GND GND OPEN GND OPEN

CH8 : 5236 MHz GND GND GND GND OPEN




6. Mechanical Specification

6.1 Dimension

Small Full HD wireless AHD transmittor - 46mm x 26mm
AHD wireless transmitter - dimensions 46mm x 26 mm


6.2 Application CKT


Wireless Full HD AHD - transmittor electric scheme
Wireless AHD transmitter - electric scheme


 

Small Full-HD Wireless AHD module - Rx (receiver unit)


PRODUCT SPECIFICATION

5.8GHz 1080P AHD / CVI / TVI RX module


Wireless AHD receiver unit


skoopia 15AT-WRskoopia 15AT-WR



CONTENTS

1. General

2. Environmental Specification

3. Electrical Characteristics

4. Pin Assignment

5. Channel Selection

6. Mechanical Specification

6.1 Dimension

6.2 Application CKT


1. General


No. Items Description

1 Operation Frequency Range 2 CH : 5725 MHz ~ 5875 MHz

6 CH : 5200 MHz ~ 5950 MHz

2 Channel mode

TVI / CVI /AHD 1080P Mode TVI/CVI Mode In Band 2 CH Overlapping (a)

Expand 6 CH Non-overlapping (a)

AHD Mode In Band 2CH Non-overlapping (a)

Expand 6 CH Non-overlapping (a)

AHD 720p Mode Mode A In Band 4 CH Non overlapping (b)

Expand 4 CH Non-overlapping (b)

Mode B In Band 2CH Non-overlapping (b)

Expand 6 CH Non-overlapping (b)

3 Video Modulation FM

4 RF Antenna Port Impedance 50 Ω


2. Environmental Specification

No. Items Min. Typ. Max. Unit.

1 Operating Temperature -10 +60 °C

2 Storage Temperature -20 +70 °C


3. Electrical Characteristics


Testing Condition @ 25°C


No. Items Min. Typ. Max. Unit. Condition

1 Supply Voltage 4.0 5.0 5.25 V DC

2 Current Consumption 270 300 330 mA

3 Input Level -85 -10 dBm

4 Sensitivity -80 dBm

5 Video Output 1 Level 0.6 0.7 0.9 Vp-p

6 Video Output 2 Level 0.6 0.7 0.9 Vp-p

7 Video S/N Ratio 40 dB

8 Antenna Bias Voltage 3.3 V On/Off set by Pin 17 BIAS

3.1V @ I (load) = 10mA

3.0V @ I (load) = 15mA

2.9V @ I (load) = 20mA



4. Pin Assignment


wireless Full HD without latency
AHD wireless pin layout

Pin No. Name I / O Function Description

1 GND - Ground

2 5V I DC power input ( 4 ~ 5V )

3 PD I OPEN : Power ON, Short to GND : Power Down

4 RSSI O RSSI voltage range : 0.2V ~ 1.2V

( RF Signal   RSSI voltage  )

5 GND - Ground

6 Video Out 2 O Video Output 2

7 GND - Ground

8 Video Out 1 O Video Output 1

9 CH SW1 I Channel Setting SW1

10 CH SW2 I Channel Setting SW2

11 CH SW3 I Channel Setting SW3

12 RF Mode I RF Channel Mode setting

Hi : 1080P AHD / TVI / CVI (a)

Low : 720P AHD (b)

13 GND - Ground

14 GND - Ground

15 N/A - -

16 N/A - -

17 BIAS I ANT PIN DC 3.3 V BIAS Setting

OPEN: 3.3 V BIAS OFF

Short to GND: 3.3 V BIAS ON

18 N/A - -

19 N/A - -

20 N/A - -

21 TVI / AHD I RF Channel setting

Hi : TVI / CVI (a)

AHD 720P (b) - Mode B

Low : AHD1080P (a)

AHD 720P (b) - Mode A

22 GND - Ground ( No pin header )

23 GND - Ground ( No pin header )

24 ANT I RF Input ( No pin header )

Option : SMA Connector is available

25 GND - Ground ( No pin header )

26 GND - Ground ( No pin header )

** ANT IPEX O RF Output IPEX Connect ( Option )


5. Channel Selection


TVI / CVI Mode or AHD Mode (1080p) (a)


Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5824 MHz OPEN OPEN OPEN OPEN OPEN

CH2 : 5776 MHz OPEN OPEN GND OPEN OPEN

OutBand Non- CH3 : 5686 MHz OPEN GND OPEN OPEN OPEN

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND OPEN OPEN

CH5 : 5506 MHz GND OPEN OPEN OPEN OPEN

CH6 : 5416 MHz GND OPEN GND OPEN OPEN

CH7 : 5326 MHz GND GND OPEN OPEN OPEN

CH8 : 5236 MHz GND GND GND OPEN OPEN


AHD 1080p Mode

Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21


InBand Overlapping 2CH CH1 : 5840 MHz OPEN OPEN OPEN OPEN GND

CH2 : 5760 MHz OPEN OPEN GND OPEN GND


OutBand Non- CH3 : 5686 MHz OPEN GND OPEN OPEN GND

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND OPEN GND

CH5 : 5506 MHz GND OPEN OPEN OPEN GND

CH6 : 5416 MHz GND OPEN GND OPEN GND

CH7 : 5326 MHz GND GND OPEN OPEN GND

CH8 : 5236 MHz GND GND GND OPEN GND


AHD 720P Mode (b)

Mode A


Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5854 MHz OPEN OPEN OPEN GND GND

CH2 : 5818 MHz OPEN OPEN GND GND GND

CH3 : 5782 MHz OPEN GND OPEN GND GND

CH4 : 5746 MHz OPEN GND GND GND GND

OutBand Non- CH5 : 5640 MHz GND OPEN OPEN GND GND

overlapping 6 CH CH6 : 5550 MHz GND OPEN GND GND GND

CH7 : 5460 MHz GND GND OPEN GND GND

CH8 : 5370 MHz GND GND GND GND GND


Mode B

Channel / Freq. SW1 SW2 SW3 RF TVI/AHD

pin 9 pin 10 pin 11 pin 12 pin 21

InBand Overlapping 2CH CH1 : 5824 MHz OPEN OPEN OPEN GND OPEN

CH2 : 5776 MHz OPEN OPEN GND GND OPEN

OutBand Non- CH3 : 5686 MHz OPEN GND OPEN GND OPEN

overlapping 6 CH CH4 : 5596 MHz OPEN GND GND GND OPEN

CH5 : 5506 MHz GND OPEN OPEN GND OPEN

CH6 : 5416 MHz GND OPEN GND GND OPEN

CH7 : 5326 MHz GND GND OPEN GND OPEN

CH8 : 5236 MHz GND GND GND GND OPEN




6. Mechanical Specification

6.1 Dimension


wireless Full-HD AHD receiver dimensions
Dimensions wireless Full-HD AHD receiver

6.2 Application CKT


wireless Full-HD AHD - electrical scheme
Electrical scheme wireless AHD


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Control the RF power of wireless Full HD AHD transmitter.


The underneath table allows you to set the RF power of the 5824 MHz AHD Channel accurately, allowing you to generate a product adhering to the relevant radiation class your application must adhere to.


Resistor (Ohm) Power (dBm)

0 28.3

100 27.5

180 26.3

220 25.1

270 24.6

330 23.7

390 23.1

430 22.7

470 22.4

510 22.0

620 21.3

680 21.0

750 20.6

820 20.3

910 19.9

1000 19.6


Industrial wireless Full-HD no latency
Industrial AHD Wireless Full HD without latency

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