Re: 30 DB directional..

Jim Thompson <[email protected]>
Newsgroups gmane.network.wireless.bay-area
Message-ID <[email protected]>
300mW (24.77dBm) + 30dBi = 54.77dBm EIRP.

The maximum tx power you can *legally* run with 30dBi of antenna gain 
PTP is

30 - (30 - 6) / 3 = 22dBm, or 158.49mW.

In other words, you're about 2X (3dBm) too high in tx power.

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf 
> Of
> blitz
> Sent: Tuesday, June 29, 2004 4:32 PM
> To: [email protected]
> Cc: [email protected]
> Subject: Re: [BAWUG] 30 DB directional..
>
> Yes, they're good, and deliver plenty gain, just make dammed sure 
> they're
> fastened to a SOLID structure, the pattern is very tight. They're 
> heavy.
> You will want to inspect them regularly for mounting bracket 
> tightness. I
> lost a mounting bracket in the snow one winter when it came loose. The 
> wind
> beat the snot out of the dish before I could get up to make repairs. I 
> shot
> 53 miles with a pair from a 535' building in a downtown to a mountain 
> top
> with them with 300mw in commercial service. They're big, they wind-load
> like hell, and they collect ice, and wind makes them sing, causing a 
> lot of
> vibration. I double nut every bolt. They're a knock off of the Prodlin 
> (I
> think thats the spelling) dishes from the 1980's. Good stuff.
>
> At 16:19 6/29/2004, you wrote:
>> Hello everyone..
>>   Anyone ever use one of these?
>>
>> http://www.hyperlinktech.com/web/hg2430d.php
>>
>> 2.4 GHz 30 dBi High Performance Reflector Grid Antenna Model: HG2430D
>>
>> If so, got any real stats on em?
>>
>> Thanks..
>> C.
>>
>>
>>
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