Re: 30 DB directional..

There is "commercial" service in 2.4GHz?   What part are you compliant 
under?

And the fact that you would blatently violate part 15 says a lot about 
you.

Jim

On Jun 30, 2004, at 1:13 AM, blitz wrote:

> Er, did you read the whole message Jim? COMMERCIAL service? as in 
> Licensed?
> We regularly ran 5 watts into the same antennas, and larger ones as 
> well....42dbi's were common fare for backbone links...TWT amps, 
> Raytheon and Lenkurt. That was the days of analog multiplex.
> I did telecom microwave radios for years.
> As far as part 15 stuff, who cares? Who's going to come find you and 
> who's going to complain?
> NO one! My home lan runs a 1 watt transmitter into a 10dbi vertical on 
> one port and a 24dbi dish on another, and that's only because I 
> haven't got the money for the export amps, or I'd be running 5 watts.
>
>
> At 03:43 6/30/2004, you wrote:
>> 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.
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> BAWUG's general wireless chat mailing list
>>>> [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless
>>>
>>> _______________________________________________
>>> BAWUG's general wireless chat mailing list
>>> [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless
>>>
>>> _______________________________________________
>>> BAWUG's general wireless chat mailing list
>>> [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless
>>
>> _______________________________________________
>> BAWUG's general wireless chat mailing list
>> [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless

_______________________________________________
BAWUG's general wireless chat mailing list
[unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless