======= At 2005-05-08, 00:27:00 Harri wrote: ======= >> > Udah ada yang pernah nyobain pake antena dari kuali aluminium untuk >> receiver perangkat wireless...? >> > Kalau udah ada yang pernah nyobain, gimana kualitasnya..?
Kalo pake wajan (=kuali?) udah pernah. Pake wajan aluminium 70cm dapet kira2 20dBi (teoritis 22dBi). Feeder-nya bikin model Folded-dipole + matchng balun coax RG-58 + reflector kawat 6cm. Hasilnya tergantung ketelitian, kesabaran dan kualitas pengerjaannya. Kalo mo nyoba, gw ada program dish-calc. Cuma perlu parameter; center-freq, diameter wajan, & kedalaman wajan. Bisa dapet estimasi gain dan jarak titik focus-nya. Kelemahan pake wajan, winload-nya lumayan tinggi, nampung angin kaya' kapal layar. Gw pasang di pipa ledeng cuma pake kawat spanner, semaleman tiang pipa-nya goyang inul, sampe pagi arah antena jadi berubah walau braket sdh full kenceng. Jadi saran gw, wajan mesti di perawanin (di lubang2in pake bor 1cm) biar goyangnya rada lemes dan ngak gampang berubah arah. -yadi- Official Web Site : http://www.awari.or.id Unsubscribe: [EMAIL PROTECTED] Web,archive: http://groups.yahoo.com/group/asosiasi-warnet Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/asosiasi-warnet/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
