FAQ


 

  1. Why sometimes heard static noise when using intercoms ?
  2. How do I know my house circuit suitable to use intercom or not ?
  3. Why some intercoms work in some houses AC outlets but not in some houses AC outlets ?
  4. Some places cannot receive audio
  5. How to set station designated channel ?
  6. How long the warranty ?

 

 

 

Q: Why sometimes heard static noise when using intercoms ?

        A: Traditional Intercoms use the existing house electrical lines to transmit and receive signal. The power line generates interference (from other home appliances) or blockade of signal to the intercoms. Our new circuit intercom use FM radio 462 MHz for wireless communication. No reliance on existing electrical wiring for transmission. Therefore, our intercom system do not have power-line static noise.

UNNECESSARY NOISES FROM NEARBY DEVICES : (CTCSS code)
1) A/B/C Code : (For model AF333, AF622 and AF388)
If your intercom system setting is at "A" code and get lot of outside unnecessary voices or noises; then, you may change your intercom system (all units) to "B" or "C" code in order to avoid unnecessary noises from nearby devices.

Note :
LOCK function (10 hours only), please note following arrangement :
Code A : No LOCK function.
Code B : LOCK function is OK
Code C : LOCK function is OK

2) 1/2/3 Code : (For model AF411)
If your intercom system setting is at "1" code and get lot of outside unnecessary voices or noises; then, you may change your intercom system (all units) to "2" or "3" code in order to avoid unnecessary noises from nearby devices.

Note :
LOCK function (10 hours only), please note following arrangement :
Code 1 : No LOCK function.
Code 2 : LOCK function is OK
Code 3 : LOCK function is OK

For any other questions, please contact us at e-mail: [email protected]

 

Q: How do I know my house circuit suitable to use intercom or not ?

        A: Our new circuit intercom do not use house power-line to transmit signal. Therefore, no AC wiring problem. Our new system is FM wireless signal transmission and reception via air - no requirement for house one power meter (i.e. no requirement for house same electric wire or 3-wire ground layout).

Q: Why some intercoms work in some houses AC outlets but not in some houses AC outlets ?

        A: Traditional Power-line intercom has this kind of problem. Our new circuit intercom will not have this problem, because our intercom system use 462 mhz FM radio frequency for wireless communication through the air.

Q: Some places cannot receive audio

       A: This intercom operates on radio frequency (RF) signal. The signal strength has been optimized for effective operation within ordinary residential or small industrial complex. If reception problem is found; for example, no audio signal or poor reception, user can move the intercom units within a line of sight but separated within short distance (3 or 6 feet) to check if the problem persists.

The quality of RF signal is affected by interference and fading. Fading is the attenuation of RF signal and it is one of the reasons to cause poor reception. Fading can be caused by RF signal absorption due to reinforced concrete walls, metallic frames, heat exchangers or chicken wire fences encountered along the path of transmission. If the intercom units work perfectly in line-of-sight. Please check the placement of the units.

Jamming or interference is caused by the presence of another RF signal source, an intentional transmitter or unintentional RF signal leakage from faulty electrical appliances; for example, another transceiver operating on the same channel, a faulty transmitter or TV amplifier. Severe jamming can overloaded receiving circuits and cut off reception entirely. Move the intercom units to a new location (or use mobile phone battery with your unit and moving around to find good reception location) and test again.

Q: How to set station designated channel ?

      A: Just press and hold the CHANNEL button for 8 to 10 seconds, then you will hear a beep tone. Then, you successfully set it up.

 For example : If you wish to set a kitchen unit to channel 3, just press and hold CHANNEL 3 button (lights) for 8 to 10 seconds, until you hear a beep tone. Then the kitchen unit will be set in CHANNEL 3. whenever you finish conversation in which channels, 1 minute later, it will shift back to channel 3.

Q: How long the warranty ?

      A: 12 month from date of purchase.