User Manual for Purefm-980/980p
Contents
1. 1 RF power Stereo mode adjust Press M button in the following 2 seconds Press pp to increase power by 1 level Press 44 to reduce power by 1 level Press to turn on off stereo mode 2 Volume adjust press VOL button in the following 2 seconds Press ppl to increase volume by 1 level Press W4 to reduce volume by 1 level Web www fmuser net 4 42. a stable distance and try to put as close as possible to the mouth when speaking something then adjust the volume If the distance between microphone and mouth changes readjust the volume We recommend to adjust the volume at level 5 when using microphone and turn off stereo mode When broadcasting from MP3 please turn on Stereo mode to make sure the receiver ends gets the best sound 6 About broadcast power For the pureFM 980P due to the relative high RF power output the device will heat fast especially after power level 3 this is normal and please don t worry too much about it The different of device temperature with environment temperature will not exceed 10 celsius degrees Please try to avoid power on the transmitter without inserting microphone in case the transmitter shows a dead screen Keep the receiver at least 5meters from the transmitter When the distance is far enough please try to use low level power output to realize the transmission 3 4 2 Contact Rita Cai Email rita fmuser net Skype rita cai87 Device operation Purefm 980 980p Operation Instruction Microphone port ee Audio in port Battery status charging status USB charge port RF power output Power switch ynamic olume Stereo Mode Microphone mute PureFM 980 FULL BAND STE Microphone mute Power Stereo adjust button Microphone unmute Frequency Frequency Volume adjust
3. 0MAH battery 8 Broadcasting range PureFM 980 100m 200m 300m PureFM 980P 300m 600m 800m Contact Rita Cai Email rita fmuser net Skype rita cai87 Web www fmuser net 9 Volume adjust 8 levels 15dB 12dB 10 Volume loss MONO OdB STEREO 10dB 11 Frequency stability 15PPM PLL 12 Frequency response 30Hz 15KHz pre emphasis 75us 13 Charge time about 5hours 5V voltage 14 Charge port MINI USB 5PIN 15 Display LCD display 16 Data storage Frequency Volume Power output Mute Stereo settings will be stored with EEDATA they will not lose because of low battery or battery taken out 4 About broadcasting range 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 5 Volume Adjust The volume adjust is the key part in the operation of this FM transmitter The sound will get distortion when volumes gets too high even strong screaming sound If volume is too low the receiver can hardly receive the sound clearly Firstly make sure the microphone keeps
4. Contact Rita Cai Email rita fmuser net Skype rita cai87 Web www fmuser net User Manual for Purefm 980 980p Contact Rita Cai Email rita fmuser net Skype rita cai87 Web www fmuser net 1 4 Contact Rita Cai Email rita fmuser net Skype rita cai87 Web www fmuser net 1 User Instruction The transmitter enters working mode 3 seconds after switching on 1 Use Microphone Make sure the Stereo mode is OFF before using microphone otherwise the volume will be very low and can t work normal Please use the microphone that comes in this package since we have tested and match them well If you want to use other microphone please use good quality ones with cable less than 50cm 2 Broadcasting Make sure the STEREO is ON when broadcasting audio signals from MP3 Computer TV cellphone or other audio equipment so as to avoid distortion Use a good quality audio cable longer than 50cm to connect transmitter with audio device and adjust transmitter volume to get the best audio quality Try to stretch the audio cable as long as possible and keep away from metal objects 3 Technical Specification 1 Size 85 45 13mm 2 Weight 34g without battery 52g with battery 3 Frequency 760 108MHz 4 Frequency Step 100KHz 1MHz Standard Fast 5 Power Supply BL 4C li on battery 3 8V 6 RF output power PureFM 980 15mw 50mw 150mw PureFM 980P 150mw 500mw 800mw 7 Working time PureFM 980 13h 8h 6h PureFM 980P 6h 4h 2h BL 4C 86
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