Standard configuration includes host + manual + after-sales guarantee(Free 2 AAA batteries)
【Rechargeable battery set 2】Include:Charger for 2 rechargeable batteries and rechargeable batteries
【Rechargeable battery set 4】Include:Charger for 4 rechargeable batteries and rechargeable batteries
Attention: The rechargeable battery is equivalent to the current lithium battery. It can be used continuously when the battery is out of power. You can save a lot of ordinary batteries, and also save money!
【Basic Information】
【Product name】Desheng Radio FM stereoDSPradio
【Product model】PL-118
【Product specifications】100 x 60 x 17 mm(Mm)
【Machine weight】70 g(Without battery)
【Suitable for the crowd】Suitable for travel enthusiasts, sports enthusiasts, broadcasting enthusiasts, students and other groups
【Product Introduction】
●This machine uses digital tuning and digital demodulation(DSP)Technology, high sensitivity and good selectivity
●FM receiving range can be set to87-108MHzor76-108MHz(Can listen to most campus radio), Use headphones to listen to FM stereo radio programs
●Multi-function LCD digital display: it can display the working status of radio frequency, clock, battery capacity, etc.
●With convenient tuning function(ETM)
●Very user-friendly power switch/Shutdown function: you can set the1-120In minutes sinceAutomatic shutdown, can also cancel the automatic shutdown function
●Radio wakeup
●Adopt2SectionR03(Number seven)Battery powered, very power saving
●Small size, especially suitable for carrying, enjoy broadcasting anytime, anywhere
●Physical size:Wide100xHigh60xThick17(Mm)
【Basic technical indicators】
●FMFrequency Range:87-108 MHz / 76-108 MHz(Including most campus broadcasts in China)
●FMNoise limit sensitivity(S/N=30dB): Better than3uV
●FMSelectivity >60 dB(±200KHz)
●FMSex to noise ratio:Better than55 dB
●FM stereo separation: better than25dB
●Output Power(distortion10%): Horn≥100 mW
●Wakeup mode: radio station wakes up
●Quiescent current: <17 mA Standby current: <50 uA
●Horn specifications: diameter40mm/Impedance16Ω/Power500mWFilm horn
●Headphone specifications: diameter3.5mm/32Ωstereophone
●Power supply: two sectionsR03(Number seven)Battery
●Size: about width100xHigh60xThick17 mm
●Weight: about70 g(Without battery)
●Random accessories: instruction manual, after-sales service guarantee
![](https://img.alicdn.com/imgextra/i2/701676385/TB2l4ZSreSSBuNjy0FlXXbBpVXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i1/701676385/TB2rD.drXmWBuNjSspdXXbugXXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i1/701676385/TB2iN.Vrk9WBuNjSspeXXaz5VXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i3/701676385/TB2T5wOrXuWBuNjSszbXXcS7FXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i3/701676385/TB2u_MwrXGWBuNjy0FbXXb4sXXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i1/701676385/TB2m0oCreuSBuNjSsplXXbe8pXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/i1/701676385/TB2wdTbfTmWBKNjSZFBXXXxUFXa_!!701676385.jpg)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB2xYmwhMvD8KJjSsplXXaIEFXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2QHjohHYI8KJjy0FaXXbAiVXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/TB2eTmzhTTI8KJjSsphXXcFppXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/TB2GtWYhIjI8KJjSsppXXXbyVXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/TB22LyIhTnI8KJjSszbXXb4KFXa_!!701676385.jpg?time=1525923925000)
【Basic technical indicators】
●FMFrequency Range:87-108 MHz / 76-108 MHz(Including most campus broadcasts in China)
●FMNoise limit sensitivity(S/N=30dB): Better than3uV
●FMSelectivity >60 dB(±200KHz)
●FMSex to noise ratio:Better than55 dB
●FM stereo separation: better than25dB
●Output Power(distortion10%): Horn≥100 mW
●Wakeup mode: radio station wakes up
●Quiescent current: <17 mA Standby current: <50 uA
●Horn specifications: diameter40mm/Impedance16Ω/Power500mWFilm horn
●Headphone specifications: diameter3.5mm/32Ωstereophone
●Power supply: two sectionsR03(Number seven)Battery
●Size: about width100xHigh60xThick17 mm
●Weight: about70 g(Without battery)
●Random accessories: instruction manual, after-sales service guarantee
【Three color options】
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2fL9_hL6H8KJjy0FjXXaXepXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2ZMy5hInI8KJjSsziXXb8QpXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB28DaFhJfJ8KJjy0FeXXXKEXXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB2no6hhNPI8KJjSspfXXcCFXXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB253W5hInI8KJjSsziXXb8QpXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2JP0ZXmVaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2S60ZXmxaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2vj0ZXnBaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2fP0ZXolaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2ZzVZXXdbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2MPVZXXFbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2yPVZXapbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2kPVZXa4bXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T29PRZXbFbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/T2SjRZXcdbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2FzRZXcNbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2djJZXi0bXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/T2a6RZXdVbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2ZPNZXetbXXXXXXXX_!!701676385.jpg?time=1525923925000)
PL-118 and PL-100 physical size comparison
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2qzNZXf0bXXXXXXXX_!!701676385.jpg?time=1525923925000)
ETM for PL-118Function introduction:
━━━━━━━━━━━━
ETM: Easy Tuning ModeConvenient tuning mode
ETM tuning method——Using the radio receiving circuit and MCU control software, the frequency points without radio programs are excluded in advance, and the frequency points of suspected radio stations are selected, so that the user can easily find out the radio station programs to listen to in the future.
As we all know, the frequency range of the FM band of civil radio broadcasting is usually FM87—108 MHz, the frequency interval of its broadcasting station is 0.1 MHz. Theoretically, the number of frequencies allowed for radio stations in the FM band is(108-87)÷0.1 = 210 pieces.
The digital tuning radio is designed to receive range and frequency step interval in accordance with the above regulations. Use digital tuning radio to search for radio stations, from low to high frequency, search for FM band210Frequency points.
But in fact, for many reasons, such as preventing adjacent channel interference, not every frequency has a radio broadcast. For example, if you listen to FM radio in different places, you will receive a few radio stations at least, and you will receive60 ~ 70 radio broadcasting.
In response to the above-mentioned problems, Tecsun has developed an ETM tuning method, which uses the receiver circuit of the radio and MCU control software to exclude frequencies without radio programs in advance, and select frequencies that are suspected of radio stations. In other words, the ETM tuning method can select some suspected frequency points from hundreds of frequency points, and the user can easily find out what you want to listen to from these selected suspected frequency points in the future closing operation. Radio programs.
Use ETM convenient tuning method to listen to FM radio, the frequency points that users need to search can be reduced to a few——Dozens of them, basically the same day and night.
Operation method of ETM function:
To use the ETM function for the first time, you must first press and hold the ETM button to perform a full-frequency search on the band where it is located, and select the frequency of the suspected radio station. After the optimization, you can use the tuning knob to operate the tuning.
Special reminder: The number and frequency distribution of suspected radio stations are different at different times, locations, and bands, especially in the short band.
Use the ETM method to listen to the FM radio in the same place. Just do the ETM optimization once during the day, and don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t do the ETM optimization frequency every time in the future. However, if you change the listening location, it is recommended to do ETM again.
In order to avoid searching for too many clutter interference signals, it is recommended that you go to the balcony or outdoor open area for ETM optimization.
With the ETM tuning method, you will feel that listening to the radio can be so easy and fast.
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB2xYmwhMvD8KJjSsplXXaIEFXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2QHjohHYI8KJjy0FaXXbAiVXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/TB2eTmzhTTI8KJjSsphXXcFppXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/TB2GtWYhIjI8KJjSsppXXXbyVXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/TB22LyIhTnI8KJjSszbXXb4KFXa_!!701676385.jpg?time=1525923925000)
【Basic technical indicators】
●FMFrequency Range:87-108 MHz / 76-108 MHz(Including most campus broadcasts in China)
●FMNoise limit sensitivity(S/N=30dB): Better than3uV
●FMSelectivity >60 dB(±200KHz)
●FMSex to noise ratio:Better than55 dB
●FM stereo separation: better than25dB
●Output Power(distortion10%): Horn≥100 mW
●Wakeup mode: radio station wakes up
●Quiescent current: <17 mA Standby current: <50 uA
●Horn specifications: diameter40mm/Impedance16Ω/Power500mWFilm horn
●Headphone specifications: diameter3.5mm/32Ωstereophone
●Power supply: two sectionsR03(Number seven)Battery
●Size: about width100xHigh60xThick17 mm
●Weight: about70 g(Without battery)
●Random accessories: instruction manual, after-sales service guarantee
【Three color options】
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2fL9_hL6H8KJjy0FjXXaXepXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/TB2ZMy5hInI8KJjSsziXXb8QpXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB28DaFhJfJ8KJjy0FeXXXKEXXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB2no6hhNPI8KJjSspfXXcCFXXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/TB253W5hInI8KJjSsziXXb8QpXa_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2JP0ZXmVaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2S60ZXmxaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i4/701676385/T2vj0ZXnBaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2fP0ZXolaXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2ZzVZXXdbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2MPVZXXFbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2yPVZXapbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2kPVZXa4bXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T29PRZXbFbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/T2SjRZXcdbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2FzRZXcNbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2djJZXi0bXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i3/701676385/T2a6RZXdVbXXXXXXXX_!!701676385.jpg?time=1525923925000)
![](https://img.alicdn.com/imgextra/imgextra/i2/701676385/T2ZPNZXetbXXXXXXXX_!!701676385.jpg?time=1525923925000)
PL-118 and PL-100 physical size comparison
![](https://img.alicdn.com/imgextra/imgextra/i1/701676385/T2qzNZXf0bXXXXXXXX_!!701676385.jpg?time=1525923925000)
ETM for PL-118Function introduction:
━━━━━━━━━━━━
ETM: Easy Tuning ModeConvenient tuning mode
ETM tuning method——Using the radio receiving circuit and MCU control software, the frequency points without radio programs are excluded in advance, and the frequency points of suspected radio stations are selected, so that the user can easily find out the radio station programs to listen to in the future.
As we all know, the frequency range of the FM band of civil radio broadcasting is usually FM87—108 MHz, the frequency interval of its broadcasting station is 0.1 MHz. Theoretically, the number of frequencies allowed for radio stations in the FM band is(108-87)÷0.1 = 210 pieces.
The digital tuning radio is designed to receive range and frequency step interval in accordance with the above regulations. Use digital tuning radio to search for radio stations, from low to high frequency, search for FM band210Frequency points.
But in fact, for many reasons, such as preventing adjacent channel interference, not every frequency has a radio broadcast. For example, when you listen to FM radio in different places, you will receive a few radio stations at least, and you will receive more60 ~ 70 radio broadcasting.
In response to the above-mentioned problems, Tecsun has developed an ETM tuning method, which uses the receiver circuit of the radio and MCU control software to pre-exclude the frequency points without radio programs, and select the frequency points that are suspected to be radio stations. In other words, the ETM tuning method can select some suspected frequency points from hundreds of frequency points. In the future closing operation, it is easy for the user to find out what you want to listen to from these selected suspected frequency points. Radio programs.
Use ETM convenient tuning method to listen to FM radio, the frequency points that users need to search can be reduced to a few——Dozens of them, basically the same day and night.
Operation method of ETM function:
To use the ETM function for the first time, you must first press and hold the ETM button to perform a full-frequency search on the band where it is located, and select the frequency of the suspected radio station. After the optimization, you can use the tuning knob to operate the tuning.
Special reminder: The number and frequency distribution of suspected radio stations are different at different times, locations, and bands, especially in the short band.
Use the ETM method to listen to the FM broadcast in the same place. Just do the ETM optimization once during the day, and don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t do the ETM optimization frequency every time in the future. However, if you change the listening location, it is recommended to do ETM again.
In order to avoid searching for too many clutter interference signals, it is recommended that you go to the balcony or outdoor open area for ETM optimization.
With the ETM tuning method, you will feel that listening to the radio can be so easy and fast.