Antenna

Half Zhen Zitian line and amount to Zhen Zitian the gain of the line is small, wave segment or section is broad, ahead and rear have identical reception ability, so they apply to signal only strong, disturb little place, should receive a dot to leave

Posted at 08-08-11 by Admin views(943)

Half semmetry brace up child with line of make a present of match General reception equipment (like the television) its input characteristic impedance to be 75 (lopsided pattern) or 300 balance type, half semmetry brace up child output is: M blows?5

Posted at 08-08-11 by Admin views(1061)

please Click here to get our dipole antenna Moxon directional antenna, belong to line antenna basically, make with 14# lead, be in abroad at present extraordinary popularity. The characteristic is only 2 unit. One is driving unit, a reflector. The

Posted at 08-08-11 by Admin views(7931)

Model the characteristic of aerial: J antenna calls Polack aerial again, its characteristic is radiation angle of elevation low and have certain gain, efficiency is 1/4 GP antenna is duple. J antenna the part above is radiation paragraph, the part of

Posted at 08-08-11 by Admin views(5177)

Before two weeks, the friend helped me look for to build five of 441 95 into new car stage, paid silver, look at new bought car station, new! 35W! I fondle admiringly, come home to hook up with a young plant rapidly, receive on my switch power source

Posted at 08-08-11 by Admin views(1309)

The first kind: Long term aerial. The basis is used actually my and measure, long term the optimal physics length of aerial is the 3/4 length of the wavelengh below some frequency , namely L (rice) =225f (Mhz) . Of course, in its the meeting on times

Posted at 08-08-11 by Admin views(1064)

What is long term aerial How can you just call LONGWIRE ? Draw a line casually? NO! Go up strictly saying that is ANT of RANDOM 　 WIRE 　 only. The name of aerial should depend on here working frequency, if the length as it happens of aerial is half w

Posted at 08-08-11 by Admin views(1035)

Henan saves Zu Qing of Zhao of microwave communication bureau System of route of day make a present of is one of main component that microwave relay corresponds. The move since aerial changes the electromagnetic wave that transmits in line of make a

Posted at 08-08-11 by Admin views(1065)

Have monolayer to cross emissive antenna completely, accurate double deck (monolayer + reflex) , double deck, the 4 different structure type such as the layer, gain is tall, standing wave is small, frequency band is broad. Have design of the waterpro

Posted at 08-08-11 by Admin views(1464)

Want to use radio wave only, possible need uses antenna with assisting electric wave blast off with receive; Aerial depends on working frequency paragraph, by low distinguish to Gao Ke for train in excess specified length wave, long wave, medium wave

Posted at 08-08-11 by Admin views(1763)