FMUSER PureFM-880 User Manual
Contents
1. PureFM 880 Mini FM transmitter PureFM 880 MODE da PureFM 880 Power indication Frequency indication Noise reducing screen light and Multi function button Voice increasing button Battery indication Volume indication Microphone mute indication Frequency increasing button Microphone button Voice reducing button Frequency reducing button OONOUAWN oo v o Operation Instruction Normal working will start in 3 seconds after power on 1 Microphone The microphone should be connected well inside Some users can t hear any sound from this after they adjust the connection of the microphone the problem is solved immediately Please use the original microphone that comes with the package if you want to use other microphone please kindly choose high quality ones to ensure better sound quality 2 About Broadcasting range The test was done in open area without obstructions We were using Tecsun PL 600 radio as the receiver antenna has been fully pulled out the microphone line is stretched naturally In this way can receive the best distance Please kindly note that due to different working environment and sensitivity of radios the actual broadcasting distance might be different from ideal Since the microphone line also functions as antenna please try to stretch that as possible as you can to strengthen the broadcasting effect 3 Mic volume The volume is very crucial in operation It shou2. ld 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 la
3. ptop 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
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