国产福利久久青青草原,一二三四在线观看免费全集,日韩一区二区三区无码a片,四虎久久精品成人无码a片观看,四虎久久精品成人无码a片观看

KVH 30米網(wǎng)狀衛(wèi)星天線  30米天網(wǎng)衛(wèi)星天線   特性: 鋁網(wǎng) 柵式底座組裝 拉伸成形鋁反射面 C、Ku波段可選 線、圓極化可選 單極化、雙極化可選 手動、電動可選 抗腐 產(chǎn)品可定制   30 M天線的特點 1.可選的C波段，ku波段，ka波段頻率; 2.線性或圓形極化進料系統(tǒng)作為選項; 3. 2端口或4端口可供選擇; 4.主反射器采用形卡塞格倫天線，低噪聲溫度和低旁瓣。 5.饋電喇叭具有波紋喇叭，寬波束寬度和極化。 6.反哈希環(huán)境能力; 7.交流調(diào)速電機驅(qū)動控制系統(tǒng)。 30M Earth Station Antenna Electrical Specification Antenna 30M Earth Station Antenna Operating Frequency, GHz Receive Transmit Receive Transmit 3.625 to 4.2 5.85 to 6.425 3.4 to 4.2 5.85 to 6.65 Antenna Gain, dBi: Tx(at Tx port to feed) Rx((at Rx port of feed) 66.30+20lg [f/6(GHz)] 64.85+20lg [f/4(GHz)] 66.20+20lg [f/6(GHz)] 64.75+20lg [f/4(GHz)] Cross Polarization Isolation for LP On Axis: 35dB, Within 1dB beamwidth:30dB Axial Ratio (dB) for CP 0.5dB per port VSWR CP:1.25:1    LP:1.3:1 Antenna Noise Temperature: 5deg Elevation 10deg Elevation 20deg Elevation 40deg Elevation 58K 50K 45K 39K   64K 57K 48K 43K   -3dB Beam Width(deg) 0.24 0.16 0.24 0.16 Total Power Handling Capability 5kw (cw) per Tx port Feed Interface CPR-229G CPR-137G CPR-229G CPR-137G Feed Insertion Loss, dB 0.3 0.3 0.3 0.3 Port to Port Isolation: Tx to Rx(Tx Freq) Rx to Rx Tx to Tx(Same Band) 85dB CP: 20dB  LP: 30dB CP: 20dB  LP: 30dB Radiation Pattern:Sidelobe CCIR.580 Mechanical Specification Azimuth 0 to170deg continuousw.r.t true south Elevation 5 to 90deg (continuous) Finishes: Reflector Surface         Pedestal & Back Structure Aluminum panels with high-diffusing white paint Galvanized steel Surface Accuracy 0.7mm (R.M.S) Environmental Specification Operational Wind 79km/h Gusting to 120km/h Survival Wind 250km/h Rain Up to 100mm/h operational and survival Relative Humidity Up to  operational and survival Temperature - 50Deg.c  to  +70Deg.c Radial Ice(Survival) 25mm on all surface Shock and Vibration As encountered during shipment by commercial air, sea, or truck Corrosive atmosphere As encountered in coastal regions and/or heavily industrialized areas Seismic (Survival) 0.3g (H), 0.15g (V)