Type:Logic ICs
Condition:New
1. Basic principles
The 1.V segment is a low pass filter, only V segment frequency can pass through, corresponding to the frequency difference far away U segment, its characteristic is high impedance, make it impossible to pass.
2.U section is a high pass filter, only u segment frequency can pass through, corresponding to the frequency difference very far V segment, its characteristics are high impedance, so it can not be passed.
Because the VU frequency is very different, the index is not very high LC circuit can make the VU very good separation
Two. Technical indicators
1.V segment working bandwidth: 135-175MHz can customize intra band insertion loss: when less than 0.2db order, please explain the use of frequency points
2.U segment working bandwidth: 400-470MHz can customize intra band insertion loss: when less than 0.4db order, please explain the use of frequency points
3. isolation: the isolation of 145MHz and 435MHz is 60dB
4. in Bobbi: 1.15 U section of V section 1.19
5. power: V segment 100W u segment 60W
6. interface: L16-F (in order to ensure the above technical indicators)
The use of three and UV combiners
Some 1. UV double station, with two RF output port, the intention is to make UV respectively using the antenna (in some cases UV separated antennas would be better), the need to use two cables from the machine to the antenna leads, if the distance is long, the cost of cable will increase more. UV can be a good solution to this problem.
2., there are many dual stage radio stations that have only one radio output port, because the gain of the same length single segment antenna will often be higher than that of the two-stage antenna. Therefore, two antennas need to be erected. The UV combiner can also solve this problem well.
3. already have two radio stations in U and V segments and have a pair of two - segment antennas at this time, you can use the UV circuit to make use of your resources.
4., there are two radio stations that have u and V segments, and there are two corresponding antenna friends. If you live in the first floor of a small high-rise or high-rise, what do we do? At this point you can use the UV closing device to greatly reduce the cost of your cable or feeder.
Four, price: 100 yuan (indoor type) without freight
