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电视调频综合性铁塔,调频段常用角锥天线,它的优点是可以根据布置在铁塔侧面的振子数目和馈电方法,自由地改变其水平面或垂直面的场型,由于塔身摆动小,接收点的场强比较稳定。缺点是频带较窄,不易调整。我台使用的是六层角锥天线,发射频率是102.1和100.2MHz,两个频道分别占用上三层与下三层,水平面各方向采用旋转相位馈电。天线系统调试带宽4 MHz,电压驻波比S=1.1。角
TV tuner integrated tower, FM section of the commonly used angle antenna, its advantage is that according to the arrangement of the number of vibrators on the side of the tower and feed method, freely change the horizontal plane or vertical plane field, the tower swing small, receive The field strength is relatively stable. The disadvantage is the narrow band, not easy to adjust. My station uses a six-layer pyramid antenna, the transmitting frequency is 102.1 and 100.2MHz, two channels respectively occupy the upper three and the lower three layers, the horizontal plane using rotary phase feed. The antenna system debug bandwidth 4 MHz, voltage standing wave ratio S = 1.1. angle