(1) Do a good job of shielding of the system  to build the plant, around 0.3 galvanized sheet or the purpose of barbed wire shielding of 50mm iron pipe driven into the ground 2-3 m, at intervals of two meters to play one, will be shielded connection with the iron pipe, so that the high-frequency signals is not easy to radiate out from the factory, played overall shielding effect.

(2) High-Frequency machine rack and shell a good grounding, strengthening the body shielding, to reduce body radiation is recommended to use the width of 50mm × 50mm or above, the length is not less than 2m of angle iron into the ground as the grounding, and then more than 10mm2 of copper The line will be connected to the high-frequency machine rack and enclosure grounding. The connection should be as short as possible, non-circular motion to avoid the turn, this may enhance the shielding of the high-frequency machine body part, reduce the external radiation intensity of the interference signal. Car (room) more than one high-frequency machine, it is best to each high-frequency machine (or adjacent two) to a nearby buried next to the machine ground.

(3) Adjust the high frequency machine position and orientation

If the housing wall hanging cable, high frequency machine is best set away from the end of the cable. In addition, the ordinary high-frequency machine tube chassis successful two directions at right angles is fixed with galvanized iron rack of galvanized angle iron shielding, radiation is weak, should both directions in front of the TV cable or near users.

(4) the proposed purchase and use of anti-interference high-frequency machine

(5) to do the grounding of the cable television network, high-frequency machine in the best location near the amplifier and strand selected cable must be grounded in order to strengthen self-shielding capability. Suspension cable has a high frequency machine housing wall, to choose in the steel and concrete components (such as the ring beam, cement multi-floor), measured, not to vote in the brick wall the outside so that the cable is exposed to radiation is somewhat weaker.

(6) Adjust the amplifier or the location of the cable (10m or less) when the close of the amplifier entrance cable from the high-frequency machine may be the amplifier forward instead of the export cable near high-frequency machine, because here TV signal level is high, conducive to television signals and intrusive interference power adjustment, or adjustment of the trunk cable, so a little far away from the high-frequency machine.

(7) ensure the connection between the cable connector and reliable amplifier as far as possible a straight-joint common line connector to do a standardized, reliable, and should pay particular attention to the connector waterproof connector to avoid the water caused by the outer conductor braid mold off, resulting in shielding the bad series with the interference signal.

(8) and high-frequency machine, close within two meters of the user, the measures to be taken are: 1.A guarantee or improve the level of the user signal, the channel user entry level to ensure that not less than 65dB, as far as possible to 75 ~ 80dB. 2.Without the user box, home line plugs directly connected to a TV, if more than one TV is Sealed splitter (such as the Z106) or distributor directly connected to a TV. 3.User indoor laid cable must be a qualified product, or quad-shielded cable, disable, poor quality cable, users within 10m from the high-frequency machine is best to use aluminum pipe cable households. 4.Indoor TV as much as possible without plastic injection pressure plugs online. 5.Good plug wire, try not to plastic injection pressure plug wire (its internal sealing off easy, not easy to find), the use of hand-made four-shielded cable plug cable. 6.Receiving the user fault complaints, change a plug wire test what, if the issue is resolved, then the user plug cord cut to redo, otherwise check the cables and connectors of the indoor and even outdoor cable connector.