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Author Topic: Huawei E160 HSDPA USB Stick External Antenna Cable  (Read 6693 times)
rdpzycho
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« Reply #20 on: February 15, 2010, 11:34:16 AM »

^ depende sa design sis, meron kasing nakalagay sa parang splitter/combiner 'yung antenna, pero meron ding merong switch. though most probably kahit 'di na alisin 'yan.
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« Reply #20 on: February 15, 2010, 11:34:16 AM »

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'yus
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« Reply #21 on: February 15, 2010, 10:18:29 PM »

may nakita akong antenna design kaso malabo yung mga images: Sad
Design of the Spiral Monopole Antenna for Multi-band Mobile Communication and SAR Analysis

meron ding mga "printed monopole multiband antenna".
'di ko lang alam kung aling sa kanila ang pinaka-ok.. Undecided
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'yus
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« Reply #22 on: February 16, 2010, 12:31:06 PM »

may nahanap pa akong isang simple design:
Design of New Multi Standard Patch Antenna GSM/PCS/UMTS/HIPERLAN for Mobile Cellular Phones
yang na lang muna gagawin ko since madali lang i-draw yung pcb trace.. Smiley
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marcelino
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« Reply #23 on: February 16, 2010, 01:02:16 PM »

may nahanap pa akong isang simple design:
Design of New Multi Standard Patch Antenna GSM/PCS/UMTS/HIPERLAN for Mobile Cellular Phones
yang na lang muna gagawin ko since madali lang i-draw yung pcb trace.. Smiley


go yus!

try ko kaya ngayon...
wala naman akong magawa at nasa bahay lang. kaso wala akong connector at magandang wire para sa antenna.
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« Reply #24 on: February 16, 2010, 06:10:27 PM »

^ 'wag ka na lang gumamit ng connector. i-solder mo na directly Smiley

alin kaya mas ok sa dalawa: Huh
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marcelino
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« Reply #25 on: February 16, 2010, 06:24:50 PM »

kasi naman,  di naman sinabi kung ilan yung added gain nung patch antenna. yung spiral, 2.9dB for WCDMA... how good is that?
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« Reply #26 on: February 16, 2010, 07:19:34 PM »

dBi? ang karaniwang aim kasi ng mga ganyan na antenna sis, omnidirectional pero 'di katulad ng pattern ng dipole na walang radiation sa axis.

kapag linagay above ground plane 'yan, mapupunta lahat sa isang side 'yung radiation, kaya +3dB pa 'yung gain.
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« Reply #27 on: February 22, 2010, 11:09:14 PM »

nagawan ko na ng actual pcb's yung dalawa (yung spiral saka yung patch)

pero I ended with using yung dating internal antenna Cheesy
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« Reply #28 on: February 23, 2010, 07:12:21 AM »

Cheesy Cheesy Cheesy

bakit sis what hapened?
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'yus
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« Reply #29 on: February 23, 2010, 12:41:56 PM »

^ 'di kasi magkakasya sa loob ng notebook, Sad
unless kung dun sa may LCD sya ilalagay.
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« Reply #30 on: February 23, 2010, 07:57:50 PM »

eh sa likod naman ng LCD nilalagay sis Grin
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'yus
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« Reply #31 on: February 23, 2010, 10:15:13 PM »

katakot buksan ang LCD lid Cheesy

ito oh, 'di ko man lang na-test, 'di pa nga naalis yung pre-sensitized coating.
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« Reply #32 on: February 24, 2010, 09:52:07 AM »

katakot buksan ang LCD lid Cheesy

ito oh, 'di ko man lang na-test, 'di pa nga naalis yung pre-sensitized coating.



hehehe katakot nga Grin
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marcelino
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« Reply #33 on: February 24, 2010, 10:06:11 AM »

pwede ko ba yan gawing outdoor antenna? gaano kahabang wire ang maximum?
medyo hirap na ang 3G signal dito saamin...
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« Reply #34 on: February 24, 2010, 10:44:05 AM »

pwede sis. ilagay lang sa kaha, either i-seal maigi 'yung kaha or lagyan ng butas para tumulo ang tubig.

though mas maganda directional 'yung nasa labas, like biquad, short backfire, yagi, etc. Grin tapos 'yan 'yung nasa loob para passive repeater, kung pang-UHF to 3GHz 'yung cable ok lang kahit medyo mahaba. 'yung repeaters ng mga telco karaniwan yagi 'yung antenna sa labas.
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« Reply #35 on: February 24, 2010, 10:53:47 AM »

^ yan yung antenna nakikita natin na telephone booth ng SMART?

may design notes ka nyang mga directional sis?

medyo hahanapin pala natin yung cable... mahal yan sigurado. heheh Grin
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« Reply #36 on: February 24, 2010, 11:02:29 AM »

ang RG-6 ata nasa 20dB loss per 100ft. sa 2.4GHz, medyo ok pa rin kung maigsi lang. Grin

'yung short backfire may description sa wiki sis, medyo narrowband na nga lang ang short backfire. 'yung yagi, as is pa rin, meron lang matching 'yung nakikita ko. Grin

'yung gamit ko dito sa bahay, log-periodic sa taas, biquad na walang reflector sa baba, though para sa GSM lang ang target ko doon. nagkaroon ng signal sa mga area na walang signal dito.
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« Reply #37 on: February 24, 2010, 02:04:55 PM »

ang RG-6 ata nasa 20dB loss per 100ft. sa 2.4GHz, medyo ok pa rin kung maigsi lang. Grin

'yung short backfire may description sa wiki sis, medyo narrowband na nga lang ang short backfire. 'yung yagi, as is pa rin, meron lang matching 'yung nakikita ko. Grin

'yung gamit ko dito sa bahay, log-periodic sa taas, biquad na walang reflector sa baba, though para sa GSM lang ang target ko doon. nagkaroon ng signal sa mga area na walang signal dito.

hmm

di ba sir mas maganda ang RG-58?
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« Reply #38 on: March 26, 2010, 04:20:44 PM »

share ko naman sa inyo to,pag kasi gumamit ka ng external antenna malakas ang interference nyan kasi nga ang lapit ng usb stick sa computer at sa gumagamit din kasi nga rf diba,lalo na kung desktop ang gamit at crt ang monitor mo,lahat na try ko na para sa design ng antenna.alam nyo pinaka the best na ginawa ko,yung kasama na wire ng usb stick dinagdagan ko ng telephone wire,ginawa kong mga 4mtrs lang ang haba kasi kapag sa 5 mtrs. na minsan bumibitaw na ang power ng usb stick,kaya maximum lang dapat 4mtrs lang,nilabas ko usb wire pinadaan ko sa bintana at doon ko sa labas nilagay ang usb stick,para water proof siya uminom muna ako ng gatorade na naka plastic medyo matibay ang plastic nito don ko siya nilagay sa loob at sa gawing baba neto ginawan ko ng maraming butas para sa ventillation and medyo tinakpan ko ng tila para di siya ma sun burn, pinutol ko yung tubo ng antenna namin kasi subrang haba at don ko nilagay at eto na nga sagad ang signal.bahala na kayong magdagdag para sa kontra kidlat diba, para safe ang usb stick nyo.
iba naman ang problema ko ngayon papaano ko gagamitin ang prepaid na to na hindi ako nagbabayad at deretso ang surf ko lagi Cheesy
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