Has anyone used radio to radio with
attenuators to check pigtails?
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jenco Wireless
Sent: 03 March 2006 06:01
To: WISPA
General List
Subject: Re: [WISPA] Pigtails.....
and 5.8GHz low power....
It's called the Butterfly from www.bvsystems.com.
It was about $500. Money well spent :-). As far as I can tell, it
is dead accurate !
On 3/3/06, Tom
DeReggi <[EMAIL PROTECTED]>
wrote:
Which meter did you buy? What did it run you?
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
Sent: Friday, March 03,
2006 12:30 AM
Subject: Re: [WISPA]
Pigtails..... and 5.8GHz low power....
Get a test meter. I got one from BVS Systems and LOVE it
! Roger Peters has had great piggies in the past. I just tested a
UFL from Wisp-Router and it was 2 dB better than anything else (UFL) I have
tried, but it was only 5" long, so I am sure that has something to do with
the better "review". Once you have tested a few radio cards and
pigtails with this meter, you will wonder how you ever lived without it.
On 3/2/06, Blair
Davis <[EMAIL PROTECTED]>
wrote:
I can't 'directly' tell which is good or bad without testing....
As to what is wrong with them, I don't know. I do know that the ones
I
tested and published to the list were all new units. They were
opened
fresh for this test. I tested some other units as well, but I felt that
it made more sense to show the results from new, 'identical' pigtails....
I plan to buy sets of pigtails from other manufactures and continue to
test as I have time...
Tom DeReggi wrote:
> The question is, how do you tell which pigtails are good and bad?
> And more importantly why are the bad ones bad?
>
> Is it the cable quality, the connector quality, the crimping/soldering
> ofconnector to cable?
> Is it the Ufl connector getting bend/loose where it clamps to the
> radio connector?
>
> Is there are more durable pigtail that gets around the problem?
>
> Tom DeReggi
> RapidDSL & Wireless, Inc
> IntAirNet- Fixed Wireless Broadband
>
>
> ----- Original Message ----- From: "Blair Davis" < [EMAIL PROTECTED]>
> To: "WISPA General List"
< [email protected]>
> Sent: Thursday, March 02, 2006 11:58 AM
> Subject: Re: [WISPA] Pigtails..... and 5.8GHz low power....
>
>
>> Some interesting results of pigtail testing.....
>>
>> Link is 7.9 miles. There is eyeball LoS with no fresnel
zone
>> incursions. Antennas are V-pol. Calculated link is -63db.
>>
>> Client end:
>>
>> RouterBoard 230 with MikroTik 2.9.13
>> SR5 card set to default TX power
>> u.fl to N-female pigtail
>> 5 ft LMR-400 jumper
>> Hyperlink HG5827G 27db grid
>>
>> AP end:
>>
>> RouterBoard 230 with MikroTik 2.9.13
>> SR5 card set to default TX power
>> u.fl to N-female pigtail
>> 5 ft LMR-400 jumper
>> Hyperlink HG5817P 17db sector
>>
>> AP reports client at -71 with -100 noise floor
>>
>> Test u.fl pigtails new in wrapper.
>>
>> #1 AP reports client at -71
>> #2 AP reports client at -82
>> #3 AP reports client at -74
>> #4 AP reports client at -72
>> #5 AP reports client at -71
>>
>> Obviously, not all new u.fl pigtails are the same.
>>
>> Test mmcx pigtails new in wrapper.
>>
>> #1 AP reports client at -73
>> #2 AP reports client at -74
>> #3 AP reports client at -74
>> #4 AP reports client at -75
>> #5 AP reports client at -73
>>
>> Less spread on the mmcx pigtails. The best mmcx pigtail
seems to
>> about as good as an average u-fl pigtail. However, this
could be an
>> artifact of the SR5 cards mmcx port.
>>
>> Draw your own conclusions, but I will no longer trust u.fl pigtails
>> out of the box. Careful sorting of new u.fl pigtails could
improve
>> signal quality by 3-4db. At a client end this might not be
worth
>> it. At the AP, IMHO, it is well worth the time and effort.
>>
>>
>>
>>
>>
>>
>> --
>> Blair Davis
>>
>> AOL IM Screen Name -- Theory240
>>
>> West Michigan
Wireless ISP
>> 269-686-8648
>>
>> A division of:
>> Camp Communication Services, INC
>>
>> --
>> WISPA Wireless List: [email protected]
>>
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>
>
>
>
>
--
Blair Davis
AOL IM Screen Name -- Theory240
West Michigan Wireless ISP
269-686-8648
A division of:
Camp Communication Services, INC
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