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

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