HAM Antenna Combiner Iso -frequency Transit Station Duplexer VHF UHF
1、 Basic principles
1. V segment is a low-pass filter, only the frequency of V segment can pass through, which corresponds to the U segment whose frequency difference is very far. Its characteristic is high impedance, which makes it unable to pass.
2. U segment is a high pass filter, only the frequency of u segment can pass through, which corresponds to V segment whose frequency is very different. Its characteristic is high impedance, which makes it unable to pass.
Because the frequency of vu is very different and the index is not very high, the LC loop can make the VU separate well
2、 Technical index
1. V segment working bandwidth: 135-175mhz can be customized, in band insertion loss: less than 0.2db, please specify the frequency point when ordering
2. U segment working bandwidth: 400-470MHz can be customized, in band insertion loss: less than 0.4db, please specify the frequency point when ordering
3. Isolation: the isolation of 145mhz and 435mhz is 60dB
4. VSWR: V segment 1.15 u segment 1.19
5. Power: V segment 100W, u segment 60W
6. Interface: l16-f (to ensure the above technical indexes)
7. Overall dimension: 95 * 76 * 35mm (including protruding part)
8. Net weight 200 g
3、 Application of UV combiner
1. Some UV Dual segment radios have two RF output ports. The original intention is that the UV can use the corresponding antenna separately (in some cases, the separation of UV antenna will have better effect). At this time, two cables are needed to lead out. If the distance from the machine to the antenna is very long, the cost of the cable will increase more. The UV combiner can solve this problem well;
2. There are many dual section radios with only one RF output port. Because the gain of a single segment antenna with the same length is often higher than that of a dual segment antenna, it is necessary to set up two antennas. The UV combiner can also solve this problem well;
3. If you have two radio stations (U and V) and a dual antenna, you can use the UV combiner to make reasonable use of your resources;
4. What if you live in a small high-rise or a high-rise building if you already have two u-segment and v-segment radio stations and two corresponding antennas? At this point, you can use UV combiner to greatly reduce the cost of your cable or feeder;