Antenna Demo Page – SCADALink

Radio systems must be deployed with the proper antenna systems including antenna, cable, lightning protection, and mast/towers. This section describes selection of antenna systems.

Radio and Cellular Modems can operate in the following bands – VHF, UHF (hi and low), Spread Spectrum, WiFi.

Antenna Impedance

Antenna are typically 50 Ohm Impedance.

Band	Frequency	Description	Note
VHF	130 – 200 MHz	Voice Communication, Licensed radio
UHF	400 MHz	Licensed Radio
Spread Spectrum	902 – 928 MHz	License Free Application
WiFi	2.4 GHz	Wi-Fi, a, b, g, n
WiFi	5.8 GHz	n, ac
Cellular	700 MHz	LTE / Data / Voice
	800 MHz / 900 MHz	Data / Voice
	1700 MHz / 2100 MHz	AWS
	1900 MHz / 2600 MHz	Data / Voice

Antenna Types

Omni Base Station Antenna

Omni-directional base station antennas systems are used for fixed site applications where a central or repeater site must communicate to remote sites in multiple (omni) directions. For systems covering wider areas, the base station antenna would be mounted on an elevated mast or tower. For systems covering shorter distances low gain omni antennas may be used.

Directional Antenna

Directional (typically YAGI) station antennas are used for fixed or portable sites to communicate to Master site or Repeater site in a Point to Multipoint Systems, or for Point to Point Systems. Antennas are mounted on masts or tower to clear terrain obstructions. The directional antenna can be YAGI, reflectors, or parabolic dishes. Antennas for areas with severe icing may require radomes on the complete antenna or the driven element.

Mag Mount Antenna

Mag mount antennas are used for mobile or short distance fixed site applications. Mag mount antennas with no ground planer design if mounted on non-metallic equipment to insure adequate ground plane.

Whips

Whip antennas are connect directly on devices for testing to communicate within a laboratory or shop. Whip antennaes are not recommended fixed site installation where the antenna can be obstructed by buildings, vehicles, equipment or enclosures.

Specialty Antennae

Specialty antennas including in-ground, flush mount, or multi-band antennas may be used.

In-Road Antenna Installation

1.	400 MHz Antennas
Item		Part No.	Description	Note
1A		SY 307 UHF	Rugged antenna suitable for UHF SCADA system radios. 403-430 MHz, 10 dB gain, Supplied with a N(F) connector on the lead lin.	Link
1B		ANT-PRO403-12	The PRO403-12 is engineered to meet or exceed the requirements of a broadband, high gain, Professional Grade 400 MHz Yagi antenna. 403-430 MHz, 12 dBi gain, 250W, with a VSWR of 1.5:1 or less.

2.	Spread Spectrum Antennas
Item		Part No.	Description	Note
2A		ANT-PC9013N	13 Element design, 13 dB Gain, Aluminium construction, Supplied with N(F) connector on the lead line. 13 Element design, 13 dB Gain, Aluminium construction, Supplied with N(F) connector on the lead line.	Link
2B		ANT-LAIRD-PC906N	The PC906N Yagi antenna is suitable for use with SCADA system radios that operate in the unlicensed 896-940 MHz frequency range. 6 Element design, 8.5 dB Gain, Aluminum construction, Supplied with N(F) connector on the lead line.	Link
2C		ANT-PC904N	The PC904N Yagi antenna is suitable for SCADA system radios that operate in the unlicensed 896-940 MHz frequency range. 4 Element design, 6 dB gain, Aluminium Construction, Supplied with N(F) connector on lead line.	Link
2D		ANT-TRA9023N	wide bandwidth and low radiation pattern for superior results. Exterior is made of highest grade plastic. No ground plane is required. 902-928 MHz, 3dB gain, 100W, with N Female Terminated connector.

3.	Cellular Antenna
Item		Part No.	Description	Note
3A		ANT-WIL-DUALBAND-CELL	Wide-band directional YAGI antenna. 698-960 / 1710-2700 MHz, Cell 8-10db Dual Band, 8.5 Avg / 9.5 Peak dBi, Low Band: 100-109 Horiz, 65 Vert, Connector N-Female.
3B		ANT-LAIRD-TRA6927	Antenna Phantom , Omnidirectional, 3G/4G/LTE, no ground plane, Connector N-Female.
3C
3D		SY406	The SY 406 Yagi antenna is suitable for SCADA systems operating with cellular modems in 824-896 MHz frequency range. Rugged 7 Element design, Aluminium reflector/director elements with 360° welds, Black anodised for extended life and superior performance in heavy ice or snow covered conditions, 10 dB Gain, Supplied with a N(F) connector.	Link
3E		PC806N	The PC806N Yagi antenna is suitable for cellular modems operating on SCADA systems in the 806-866 MHz range. 6 Element design, 8.5 dB Gain, Aluminium construction, Supplied with N(F) connector	Link

4.	WiFi Antenna
Item		Part No.	Description	Note
4A		ANT-WIFI-WLAN-DUALBAND	Dual Band Stubby Antenna, Omnidirectional, WiFi / Wlan Antenna. 2400-2500/5150 MHZ, 2.5±0.5 dBi Gain, Connector N Male.