I have C.L.A.P
- Apr 26, 2010
- Albion Park NSW
Most do not use a license.miked said:Hi
I got one of these transmitters (CZH-05B) earlier in the year but have only recently tested it out . I was getting a lot of hum in the background. I was playing through ipad?
Have also done a bit of reading on the Wiki re transmitters but am a bit confused about output power and licences etc.
Do you need a licence to transmit with this device?
Generally you wont have any issues if you follow some simple rules
- Do not transmit for miles around, you only at most need to cover your street. So dont use 1 watt plus transmitters a 10 milliwatt transmitter will do the job and is what I use.
- Ensure your transmission does not effect any other stations, do a drive around to ensure that the frequency is in fact clear. Check at night when the show will be running just in case there is a local community night time station nearby. Recheck this every year to ensure no new stations have come on line.
- Only transmit during the show, do not transmitt 24/7
- Do not have any commercial advertising/promotions, inapropriate language or threatening language when transmitting.
- Ask your immediate neighbours if they are being effected by any transmissions.
Now the hum can be generated through:
- the power supply, try changing power supplies, or plugging in the power supply in another outlet
- the location of the cables and transmitter, try moving the cables and transmitter away from computers and any electronics and mains cables and power supplies.
- the type of AV cables used. use higher quality AV leads if using cheap AV cables
Just a few thing to try and do that can minimise the hum