FMUser PureFM-880, Руководство пользователя

Страница: 3 / 3

effect.
3.
Mic volume: The volume is very crucial in operation. It should be proper. High Volume will
cause distorted sound like hoarse howling, Low Volume will be weak and unclear. Firstly
make sure mouth should be close to the microphone and try to keep the same distance, then
adjust the volume. If the distance changes, volume should be re-adjusted.
4. About background Denoise function: The background noise components can not get rid o
the noise completely, it can only reduce the nosie by increasing the SNR of valid sounds,
condition is the valid sound must be stronger than background noise. During using, please
adjust the mic volume to proper value(recommended 6 level) and keep the distance between
mouth and microphone, or there won’t be ideal effect. If you are not using it in noisy places
like shopping mall/restaurant and so on, please do not open the denoising function.
5.
Transmitter body heat: Due to the relatively high power output especially at “3” level, there
will be obviously heating on the body after using for minutes, it is a normal phenomenon,
please don’t worry. The temperature difference between the transmitter body and
surrounding environment will not exceed 10 degrees. Please don’t turn on the transmitter
without connecting the microphone. Try to use the low power level to broadcast when
distance is enough. The transmitter should be at least 5 meters from the radio to avoid
possible damage to the radio.
6.
Broadcast from other audio sources: When broadcasting from other audio sources like
MP3,laptop and so on, please use proper audio cable to connect to to the transmitter, adjust
the volume to proper degree or there will be sound distortion. To increase the transmitting
distance, please use long audio cable and keep it away from metal objects. The transmitting
signal is MONO audio.
Technical parameters:
* Weight: about 26 grams (without batteries) About 43 grams (with battery)
* Frequency: 76 ~ 108MHz
* Step frequency: 100KHz/1MHz (standard / fast)
* Power Supply: BL-4C Li-ion battery, 3.8V
* Transmit power: (1 / 2 / 3 power)
FSN-302: 15 mW / 50 mW / 150 mW
(Another product:FSN-302P: 150 mW / 500 mW / 800 mW)
* Working hours: (1 / 2 / 3 power)
FSN-302: 13 hours / 8 hours / 6 hours
(Another product:FSN-302P: 6 hours / 4 hours / 2 hours )
* Standard BL-4C 860MAH capacity
* The ideal distance: (1 / 2 / 3 power)
FSN-302: 100 m / 200 m / 300 m (about)
(Another product:FSN-302P: 300 m / 600 m / 1000 m (about))
* The microphone volume: 8-15dB ~ +12 dB
* Noise reduction: about 20dB
* Frequency stability: 15PPM, PLL frequency synthesizer
* Audio Response: 30Hz ~ 15KHz, mono Pre-emphasis 75uS
* Charge time: about 8 hours, charging voltage 5V
* Charging port: MINI-USB-4PIN
* Display: LCD liquid crystal display
* LCD backlight: blue LED backlighting
* Data retention: frequency / volume / power / noise / Mute and other users within the parameters
EEDATA storage, not due to the battery power is exhausted or the battery is taken Out to lose.