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Távtartók omni irányított antennákhoz

Antennas with a radiation characteristic of 360° are used in different fields of radio application. Such antennas usually are known as “omnidirectional antennas” (omni antennas). Typical applications of omnidirectional antennas in practice are private mobile radio (PMR) systems, safety nets and sometimes also GSM networks. In GSM networks, however, they are only applied if there is a low frequency of radio waves.

For omnidirectional antennas it has to be taken into account that metal structures in the direct vicinity have a negative, i.e. attenuating influence on the radiation characteristics. Hence, the father from the antenna, the lower the influence of these structures on the radiation characteristics.
Together with the Kathrein company in Rosenheim, Germany, DEHN carried out measurements for evaluating what kind and size of nearby metal structures interfere the radiation characteristics.

When installing an isolated air-termination systems at an omnidirectional antenna it has to be minded that an isolated air-termination rod provides a sufficient protective angle for the antenna to be protected. A sufficient separation distance s has to be kept as well.

Details

Table
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Calculation of the wave length
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Figure 2: Exemplary design for an omnidirectional antenna, length 3000 mm
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Figure 3: Spacer – detail view
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Figure 1: Exemplary design for an omnidirectional antenna length 1000 mm
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Spacer for DEHNiso Combi supporting tubes with inside and / or outside installed HVI Conductor mounted on the antenna mast.

3 Termékek

Cikkszám 105363 AH D50 1000 D55.100 STTZN

GTIN 4013364106031, Vámtarifa szám (EU): 85389099, Bruttó súly: 8.87 kg, PU: 1.00 db.

Képek

További információ

Spacer for omnidirectional antennas, clamping range: 55-100 mm, St/tZn
Spacer for omnidirectional antennas for fixing the supporting tube construction at the antenna mast
For DEHNiso Combi supporting tubes with HVI power Conductor installed inside and/or outside the supporting tube
At least two spacers have to be mounted per supporting tube of the isolated air-termination system
Spacers are dimensioned according to Eurocode
Material of support / square profile: St/tZn
Clamping range (Ø mast): 55-100 mm
Clamping range of supporting tube: 50 mm
Length of spacer: 1000 mm
Dimensions: 140 x 120 x 55 mm

Gyártó: DEHN
Típus: AH D50 1000 D55.100 STTZN
Cikksz.: 105363
vagy egyenértékű.

 

Műszaki adatok

Material of support / square profile St/tZn
Clamping range (Ø mast) 55-100 mm
Clamping range of supporting tube 50 mm
Length of spacer 1000 mm
Dimensions (w1 x h1 x d1) 140 x 120 x 55 mm

A 105363 termék hozzá lett adva a jegyzettömbhöz.

Jegyzettömb indítása

A 105363 terméket hozzáadtuk a kosárhoz.

Webshop indítása

Cikkszám 105364 AH D50 1000 D100.150 STTZN

GTIN 4013364106048, Vámtarifa szám (EU): 85389099, Bruttó súly: 10.85 kg, PU: 1.00 db.

Képek

További információ

Spacer for omnidirectional antennas, clamping range: 100-150 mm, St/tZn
Spacer for omnidirectional antennas for fixing the supporting tube construction at the antenna mast
For DEHNiso Combi supporting tubes with HVI power Conductor installed inside and/or outside the supporting tube
At least two spacers have to be mounted per supporting tube of the isolated air-termination system
Spacers are dimensioned according to Eurocode
Material of support / square profile: St/tZn
Clamping range (Ø mast): 100-150 mm
Clamping range of supporting tube: 50 mm
Length of spacer: 1000 mm
Dimensions: 190 x 140 x 60 mm

Gyártó: DEHN
Típus: AH D50 1000 D100.150 STTZN
Cikksz.: 105364
vagy egyenértékű.

 

Műszaki adatok

Material of support / square profile St/tZn
Clamping range (Ø mast) 100-150 mm
Clamping range of supporting tube 50 mm
Length of spacer 1000 mm
Dimensions (w1 x h1 x d1) 190 x 140 x 60 mm

A 105364 termék hozzá lett adva a jegyzettömbhöz.

Jegyzettömb indítása

A 105364 terméket hozzáadtuk a kosárhoz.

Webshop indítása

Cikkszám 105365 AH D50 1000 D150.190 STTZN

GTIN 4013364106055, Vámtarifa szám (EU): 85389099, Bruttó súly: 14.63 kg, PU: 1.00 db.

Képek

További információ

Spacer for omnidirectional antennas, clamping range: 150-190 mm, St/tZn
Spacer for omnidirectional antennas for fixing the supporting tube construction at the antenna mast
For DEHNiso Combi supporting tubes with HVI power Conductor installed inside and/or outside the supporting tube
At least two spacers have to be mounted per supporting tube of the isolated air-termination system
Spacers are dimensioned according to Eurocode
Material of support / square profile: St/tZn
Clamping range (Ø mast): 150-190 mm
Clamping range of supporting tube: 50 mm
Length of spacer: 1000 mm
Dimensions: 230 x 180 x 70 mm

Gyártó: DEHN
Típus: AH D50 1000 D150.190 STTZN
Cikksz.: 105365
vagy egyenértékű.

 

Műszaki adatok

Material of support / square profile St/tZn
Clamping range (Ø mast) 150-190 mm
Clamping range of supporting tube 50 mm
Length of spacer 1000 mm
Dimensions (w1 x h1 x d1) 230 x 180 x 70 mm

A 105365 termék hozzá lett adva a jegyzettömbhöz.

Jegyzettömb indítása

A 105365 terméket hozzáadtuk a kosárhoz.

Webshop indítása
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