Matching circuit SK - 6 and rejector circuit ZK – 4
Matching circuit SK-6 and rejector circuit ZK-4 are used in the line device of trains radio communication.
Circuit SK-6 and ZK-4 are used as radio-frequency rejectors, that minimize bridging influence of transformer and traction substation on radio-frequency canal, organized by high-frequency line of main. Matching circuit SK-6 can be used as matching circuit.
|
Main
technical characteristic |
ZK-4 |
SK-6 |
|
resonance frequency |
2,130 ± 0,005 |
|
|
circuit’s resistance on resonance frequency, ohm, not less |
24000 |
10000 |
|
circuit’s resistance constant current, ohm, not less |
0,024 |
0,0034 |
|
Coil inductance, mcH |
15 ± 1,5 |
7,5 ± 0,75 |
|
coil Q-factor, not less |
120 |
100 |
