Radio Licensing & Frequency Assignments

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RADIO SPECIALISTS PTY LTD 

RADIO SALES, LICENSING, CONSULTANCY, DESIGN

Satphones, Commercial Two-way, Aviation, Amateur, CB, GPS, Marine Radio and Surveys

Shop/Office: 243 Seacombe Road, South Brighton, South Australia 5048

Shop Hours: Mon- Fri 9am-5:30pm Sat 9am-5pm

Tel/Fax: 08 8298 3906     International +61 8 8298 3906

Email: mail@radiospecialists.com.au 

ACN 130 186 088

© Copyright Radio Specialists Pty Ltd. 

RADIOS AND LICENCES COMBINED PACKAGE DEALS

Huge range of grid pack antennas and yagis available, for wireless LAN 2.4 GHz and 5.8 GHz

Link calculations - we can assist with antenna gains required for given link distances, Fresnel zone clearances, Fade Margins etc. 

The antennas are designed for Spread Spectrum bandwidths eg IEEE  802.11b and 802.11g protocols.

Wi-Fi 2.4 GHz and 5.8 GHz WIRELESS LAN 

 

2.4GHz Wireless LAN FAQs

 

Q: How much power am I permitted to radiate at the antenna in a 2.4 GHz WLAN ?

A: 4 watts (36dBm) EIRP when using digital modulation eg 802.11b and 802.11g

 

Q: What is dBm ?

A: Power level relative to the reference of one milliwatt, and expressed in dB 

    dBm = 10 log P1/P2 where P1 is the power level and P2 = 1 milliwatt (mW) = 0.001 watt 

    So, 10 log 4/0.001 = 36dBm EIRP is the maximum power you can radiate. 

 

Q: What is EIRP ?

A: Effective Isotropic (theoretical point source) Radiating Power 

    You could run 4 watts into a point source antenna with a radiation pattern like a sphere (except it is only

    theoretical and doesn't exist), or you could run 100mW into a 16dBi gain antenna (40 times the power) in

    a given direction. The radiated energy level at the receiving point some distance away would be the same.

    It means whatever combination of transmitter power and antenna gain you use you cannot exceed the 4

    watts that would be effectively radiated from the point source.   

    

    A simple dipole has 2.15dB directional gain broadside with nulls on its ends. 0dBd = 2.15dBi

 

Q: How do I calculate how much antenna gain I can use then ?

A: Your modem is typically 20dBm (100 mW) output power.

     System gain can therefore be 36 - 20 = 16 dB 

     If you had no cable loss you could run an antenna with 16 dBi gain

     If you have 1dB cable/connector loss you can use an antenna with 17dBi gain.

     Use our 2400SPL4 with 15dBi gain it will provide an excellent result.

 

Q: Can I use a booster amplifier and is there any advantage ?

A: High gain antennas have a narrow beamwidth. For short range broad coverage 

     use a low gain antenna with broad beamwidth and make up the difference with a booster eg 10dB.

     20dBm modem + 10dB booster = 30dBm (1 watt), EIRP permitted is 36dBm.

     Therefore antenna gain can be 36 - 30 = 6dBi gain.

     If cable/connector loss is 1dB antenna gain can be 7dBi.

     Use our 2400AT6 with 6dBi gain it will provide an excellent result.

 

Q: What sort of cable should I use ?

A: Keep cable loss to a minimum or it is added to the noise figure of the

     receiver. Good engineering practice is 1dB (or less) cable loss.

     We sell RU400 cables with connectors fitted, in cut lengths.

     For long cable runs we can supply half inch heliax eg LDF4-50 and similar. 

 

                        

 

N plug / SMA RP plug, RG174 200mm 

(others available)

 

MODEM PATCH CABLES 

Connect your modem to our antennas

 

N plug / SMA plug, RG174 200mm $15.95

N plug / SMA RP plug, RG174 200mm $15.95

SMA plug / SMA plug RP, RG174 500mm $15.95

N plug / SMA plug, RG58 low loss 300mm $19.95

 

Connectors click here

D-Link AirPlus DWL-G510 PCI card

NETGEAR WPN311 PCI card

Low loss RU400 extension cable fitted with N plug and N jack 5m is approx 1dB at 2.4 GHz

5m $45.95
7.5m $62.95
10m $79.95
15m $113.95
20m $148.95
25m $181.90

 

Others available made to order, also LDF4-50 (HFC12D) below made to order.

 

Rubber self amalgamating tape to seal up the connection at the antenna:

10m length 19mm wide by 0.8mm thick $19.95. 300 mm cut length $2.50 

You stretch the tape, then wrap it around the connectors and then squeeze it with your hand and it fuses together and makes a watertight seal.

WLAN install kit $89.95. 

5m low loss RU400 extension cable, wall plate, 200mm N patch cable connects to rear of wall plate, 500mm SMA plug/SMA plug RP patch cable connects to modem, rubber tape to weather seal connection at antenna.

2400CT Desktop antenna for 2.4 GHz WiFi LAN $39.95

2400CT 

Designed for the 2.4 GHz frequency band for WiFi

ight weight and compact size, rubber base that will not mark desktops.

Frequency:

2400 - 2483 MHz

Bandwidth:

83 MHz

Gain: 

5 dBi

Horizontal Beamwidth

360 degrees

Vertical Beamwidth

28 degrees

VSWR

< 1.5:1

Impedance 

50 ohms

Polarization 

Vertical

Maximum power 

50 watts

Connector 

SMA plug

Length 

245 mm (h) x 35  mm (w) x 12 (d)

Weight

75 g 

 

2400A-N with magnetic base for mobile use

7dBi gain

$59.95

2400A-N 

Designed for the 2.4 GHz frequency band for mobile WiFi

With magnetic base with N connector and SMA RP plug.

Frequency:

2400 - 2483 MHz

Bandwidth:

83 MHz

Gain: 

7 dBi

Horizontal Beamwidth

360 degrees

VSWR

< 1.5:1

Impedance 

50 ohms

Polarization 

Vertical

Maximum power 

50 watts

Connector 

SMA RP plug

Length 

260 mm

Weight

200 g 

ANT2400Q2P

2.15dBi gain

SMA RP plug

for Wi-Fi modems

$6.10

ANT2400Q5P

5dBi gain

SMA RP plug

for Wi-Fi modems

$7.65

ANT2400Q9P

9dBi gain

SMA RP plug

for Wi-Fi modems

$15.40

ANT2400Q2P  ANT2400Q5P  ANT2400Q9P

Designed for 2.4 GHz Wi-Fi modems in 2.15dBi (unity gain), 5dBi and 9dBi.

Fitted with SMA RP plug (male RP) for direct connection to Wi-Fi modems.

Model: ANT2400Q2P ANT2400Q5P ANT2400Q9P
Frequency: 2400-2483.5 MHz 2400-2483.5 MHz 2400-2483.5 MHz
Bandwidth: 83.5  MHz 83.5  MHz 83.5  MHz
Gain:  2.15 dBi 5 dBi 9 dBi
VSWR < 2 < 2 < 2
Impedance  50 ohms 50 ohms 50 ohms
Polarization  Vertical Vertical Vertical
Maximum power  50 watts 50 watts 50 watts
Connector  SMA plug RP  SMA plug RP  SMA plug RP 
Length  137 mm   350  mm

2400AT6

6dBi gain

$49.95

2400AT9

9dBi gain

$59.95

2400AT12

12dBi gain

$69.95

2400AT6 2400AT9 2400AT

Designed for 2.4 GHz Wi-Fi networks in 6dBi, 9dBi and 12dBi.

Fitted with N jack for connection to your feeder cable.

Unobtrusive grey to blend in with surroundings

Model: 2400AT6 2400AT9 2400AT12
Frequency: 2400-2483 MHz 2400-2483 MHz 2400-2483 MHz
Bandwidth: 83  MHz 83  MHz 83  MHz
Gain:  6 dBi 9 dBi 12 dBi
Vertical Beamwidth: 25 degrees 13 degrees 7 degrees
VSWR < 1.5 < 1.5 < 1.5
Impedance  50 ohms 50 ohms 50 ohms
Polarization  Vertical Vertical Vertical
Maximum power  100 watts 100 watts 100 watts
Connector  N jack  N jack  N jack 
Length  400 mm 850 mm 1200 mm
Weight  500g  850g  1200g 
Mast size  40-50mm  40-50mm  40-50mm 

5800AD6

6dBi gain

$49.95

5800AD12

12dBi gain

$69.95

5800AD6 5800AD12

Designed for 5.8 GHz Wi-Fi networks in 6dBi and 12dBi.

Fitted with N jack for connection to your feeder cable.

Unobtrusive grey to blend in with surroundings

Model: 5800AD6 5800AD12
Frequency: 5725-5850 MHz 5725-5850 MHz
Bandwidth: 125  MHz 125  MHz
Gain:  6 dBi 12 dBi
Vertical Beamwidth: 25 degrees 7 degrees
VSWR < 1.5 < 1.5
Impedance  50 ohms 50 ohms
Polarization  Vertical Vertical
Maximum power  100 watts 100 watts
Connector  N jack  N jack 
Length  260 mm 550 mm
Weight  180g  550g 
Mast size  40-50mm  40-50mm 

Commercial grade quality

$49.95 5 element 9.5dBi. Value item 2400ACY5

$69.95 12 element 12dBi. Value item 2400ACY12

Full band Yagi 2400-2483 MHz, 2.4 GHz WLAN band

 

2400ACY5 and 2400ACY12 (5element and 12 element)

Designed for the 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 2400 -  2483 MHz
Bandwidth: 83 MHz
Gain:  9.5 / 12 dBi (two models available)
Horizontal Beamwidth 54 / 36 degrees
Vertical Beamwidth 48 / 32 degrees
Front/back ratio >14 / >18 dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical or horizontal
Maximum power  100 watts
Connector  N type jack
Length  400 / 600 mm
Weight 0.5 / 0.9 kg
Mast size 30 - 50 mm

Commercial grade quality 

$39.80 7dBi. Value item YAGI 2.4-05

Full band Yagi 2400-2483 MHz, 2.4 GHz WLAN band

360mm long 95x30mm sleeve

Unobtrusive light grey

 

YAGI 2.4-05

Designed for the 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 2400 -  2500 MHz
Bandwidth: 100 MHz
Gain:  7 dBi
Horizontal Beamwidth 35 degrees
Vertical Beamwidth 20 degrees
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical
Maximum power  100 watts
Connector  N type jack
Size  360 x 95 x 30  mm
Weight 400 g 
Mast size 30 - 50 mm (u-bolts supplied)

Commercial grade quality

$73.95 16dBi. Value item YAGI 2.4-05SNF

Full band Yagi 2400-2483 MHz, 2.4 GHz WLAN band

700mm long 95x30mm sleeve

Unobtrusive light grey

 

YAGI 2.4-05SNF

Designed for the 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 2400 -  2500 MHz
Bandwidth: 100 MHz
Gain:  16 dBi 
Horizontal Beamwidth 35 degrees
Vertical Beamwidth 20 degrees
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical
Maximum power  200 watts
Connector  N type jack
Size  700 x 95 x 30  mm
Weight 550 g 
Mast size 30 - 50 mm (u-bolts supplied)

Commercial grade quality

$118.95 multi-band. Value item 0825DS

Cell phone Next G 850 MHz GSM 900 MHz broadband 2100 MHz

WLAN 2400 MHz 

0825DS 

Broadband design including 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 800-960 and 1710-2500 MHz
Gain:  9.5 and 11 dBi
Horizontal Beamwidth 80 and 60 degrees
Vertical Beamwidth 60 and 50 degrees
Front/back ratio > 20dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical
Maximum power  100 watts
Connector  N type jack
Length  330 mm (h) x 215 mm (w) x 65 mm (d)
Weight 1.1 kg
Mast size 40 - 50 mm

Commercial grade quality. 

Sturdy cast aluminium grid for best result. (not steel wire grid)

$97.95 multi-band. Value item 2400SPL4 WLAN 2400 MHz 

2400SPL4 

Designed for the 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 2400 - 2483 MHz
Bandwidth: 83 MHz
Gain:  15 dBi
Horizontal Beamwidth 16 degrees
Vertical Beamwidth 21 degrees
Front/back ratio > 20dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical or horizontal
Maximum power  100 watts
Connector  N type jack
Length  300 mm (h) x 400 mm (w)
Weight 1.4 kg
Mast size 30 - 50 mm

Commercial grade quality. 

Sturdy cast aluminium grid for best result. (not steel wire grid)

WLAN 2400 MHz Value item $ 122.95 2400SPL6

2400SPL6 

Designed for the 2.4 GHz ISM frequency band eg wireless LAN it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 2400 - 2483 MHz
Bandwidth: 83 MHz
Gain:  19 dBi
Horizontal Beamwidth 12 degrees
Vertical Beamwidth 16 degrees
Front/back ratio > 25dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical or horizontal
Maximum power  100 watts
Connector  N type jack
Length  400 mm (h) x 600 mm (w)
Weight 2.4 kg
Mast size 30 - 50 mm

Commercial grade quality. 

Sturdy cast aluminium grid for best result. (not steel wire grid)

$139.95 WLAN 5800 MHz multi-band. Value item 5800SPL4

5800SPL4 

Designed for the 5.8 GHz ISM frequency band eg wireless LAN bridging it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 5725 - 5850 MHz
Bandwidth: 125 MHz
Gain:  24 dBi
Horizontal Beamwidth 9 degrees
Vertical Beamwidth 12 degrees
Front/back ratio > 20dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical or horizontal
Maximum power  100 watts
Connector  N type jack
Length  300 mm (h) x 400 mm (w)
Weight 1.4 kg
Mast size 40 - 50 mm

Commercial grade quality. 

Sturdy cast aluminium grid for best result. (not steel wire grid)

$229.95 WLAN 5800 MHz multi-band. Value item 5800SPL9

(feed horn as per 5800SPL4)

5800SPL9

Designed for the 5.8 GHz ISM frequency band eg wireless LAN bridging it features high gain, high front/back ratio, light weight and compact size, low wind resistance.

Frequency: 5725 - 5850 MHz
Bandwidth: 125 MHz
Gain:  30 dBi
Horizontal Beamwidth 4 degrees
Vertical Beamwidth 6 degrees
Front/back ratio > 25dB
VSWR < 1.5:1
Impedance  50 ohms
Polarization  Vertical or horizontal
Maximum power  100 watts
Connector  N type jack
Length  600 mm (h) x 900 mm (w)
Weight 4.5 kg
Mast size 40 - 50 mm
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