1).Powerful transmitter,3000mW 2).Long range:500-3000M(without block) 3).Support VCD,DVD,TV,Camera signal 4).RCA / AV port

1.2GHz 3000mW long range wireless video transmitter receiverProduct Name:video transmitter receiverModel:QLM-1215-3000B

Transmitter Specifications: 

Power Consumpation:3000mWFrequency: 1.2GhzOutput:Video & AudioSize:115×70×35(mm)Voltage:DC+12VTransmission distance:500-3000M(without block)

Channel and Frequency: 

TX	1	2	3	4	5	6	7	8	9	A	b	c	d	E	F
RX	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
MHz	993	1021	1051	1060	1080	1100	1120	1140	1160	1180	1200	1220	1240	1260	1280

 Receiver Specifications:Receiving frequency: 1.2GHzReceiving signal: Video & AudioReceiving sensitivity: -85dBmVideo output level:1Vp-pAudio output level:1Vp-pWorking temperature:-20~+50°C/-4~+122°HWorking humidity:85%RHDeposited temperature:-40~+80°C/-40~+185°HSize:135×80×21(mm)Voltage:DC+9V~12VCurrent:500mA     If you need longer range, you should install high gain antenna,suggest 13DB yagi antenna:

1.2GHz 3000mW long range wireless video transmitter receiver