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when using 22i, no need na since it runs really cool at low power of <3 watts, fan is not needed. kailangan lang talaga nka seal para di pasukin ng tubig specially the open ports! nag survive naman ng whole summer ang isang unit ko but sadly yung isa pinasok ng moist ang rj45 connector. i suggest dapat nakahiga ang modem with the lan port facing down and sealed with silicon sealant.
for bm622, i suggest it to be fully wrapped with plastic enclosure (from alexan), medyo mainit compared sa 622i but tolerable naman.
i have not tried bm625 kase medyo matakaw sa power (running almost 9 watts). it may work but nde ko lang talaga sinubukan.
bm621 naman, i don't recommend since madali mag init ang power amps. it needs a fan!
poe calculator http://blog.fosketts.net/toolbox/power-ethernet-calculator/
kung bumaba ang signal mo, baka maling freq or kulang lang sa ikot, may optimal position din kase yan.
this is for fun only, gagawa ako tut kung maraming sira ulong katulad ko dito.
http://i1184.photobucket.com/albums/z328/dbug8/poe.jpg
http://i1184.photobucket.com/albums/z328/dbug8/2012-10-20_030404.jpg
updates:
facts:
622i runs on 12V (+/-10%)
its maximum current consumption is on 220mAh (0.22 Amps)
http://i1184.photobucket.com/albums/z328/dbug8/DSC02909.jpg
so even at a very bad 100 meters cable (generic utp cat5 cable awg24), voltage is still at aceptable level.
http://i1184.photobucket.com/albums/z328/dbug8/2012-10-20_122616.jpg
how to P.O.E
http://i1184.photobucket.com/albums/z328/dbug8/DSC02930.jpg
more updates after my work, sunday evening maybe.
happy learning!
tama freq.. at inikot ko nadin 360 degre same parin... nilagay ko pla sa 14dbi na antena ung 22m.... naisip ko lang ung aluminum reflector ng antena.. aapektuhin ba ung signal ng modem sa loob???.. sa power wla naman isue... hwalay na power cable na ginamit ko
eto ss ko pag ung antena mismo gamit ko ... http://i41.tinypic.com/2wmj5ao.jpg
tinangal ko lang ung nasa harap tapos jan ko nilagay modem http://www.fpvflying.com/product_images/uploaded_images/rw.jpg