Camel RF Electronic transmitter Instruction Manual - page 3
Camel RF Development Center
5Watt FM transmitter instruction manual Page 3 of 5
3. Link the DC POWER module to the “POWER” - 6.5mm POWER socket ( DC 12V(current >2A) Pay
Attention to the power polar :inside positive; outside negative)
。
4. After electrified,the frequency is the one of last power off。
5. Frequency Increase Control :pull the button“UP”
,every pull can increase 100KHz,pull the button for
more than 1 second,the stepping jump to 1MHz.
6. Frequency Decrease Control:pull the button“DOWN”
,every pull can decrease 100KHz,pull the button
for more than 1 second,the stepping jump to 1MHz.
6
Using Essential:
1. Please select high quality power module like switching power supply。
2. The voltage of power module must not higher than 15V .
3. Please do not alter the frequency when the transmitter is working because it may disturb the wireless
communication.
4. The distance between the transmitter and antenna should be more than 5 meter because antenna may
disturb the transmitter。
5. Recommend using GP antenna or J type antenna, Make sure the SWR(standing-wave ratio)of the antenna
lower than 2,otherwise the transmitter may be damaged because of the superheating of power tube,
attention the frequency of the antenna should match the frequency the transmitter, Do not use simple
antenna, otherwise the transmitter may also be damaged because of the superheating of power tube!
Simple Failure & Resolve Method
:
Failure Phenomenon
Reason
Resolve Method
Short Transmit Distance 1
Antenna link failure
Check the link of antenna
Short Transmit Distance 2
Frequency is too low or too high
Reset the frequency
Short Transmit Distance 3
The power failure or low current
Check power module
Frequency display failure
Been strongly Disturbed
Power off the transmitter and power on after 5
second
Audio Distortion
Bad audio input or too high audio input
Check the audio input or turn down the audio input
2Transmitter covering Distance(Reference: kilometer)
:
Receive sensitivity
0.2uV/12dB
Transmit power
0.1~0.5W
Transmit power
1~2W
Transmit power
3~5W
Transmit power
10~30W
Transmit power
30~50W
City 0.1~0.5 0.5~1 1~2 3~5 5~8
Town 0.2~0.6 1~2 2~3 5~8 8~10
Environs 0.3~1 2~3 3~5 8~15 10~30
Widen Plain
0.5~2 3~5 8~20 10~30 20~40
Sea communication
1~3 5~15 10~30 20~40 20~50
★
Only for reference, also the covering distance is concern with the antenna and environment。