The high-frequency module is used exclusively for uhf wireless mic. With audio circuit, transmitting module (tx) could be made into a complete wireless speaker or belt-pack transmitter. Receiving module (rx) consists of noise amplification, one time frequency mixing, twice mixing, local oscillation, mcu frequency control and other functions. With audio circuit, it could be made into a complete wireless mic receiver. By applying d2008 directly, factories could simplify design and production of uhf wireless mic, and adopt the module easily in mining industry and electronic consumer system equipments.
D2009 may be applied in low-cost uhf and vhf wireless mic. With multiple frequency points pll, it may replace widely used single frequency point crystal in the market, and be easily embedded in wireless voice transmission and amplification in mining industry and electrical consumer systems. Together with audio circuit, transmitting module (tx) may be made into a complete wireless speaker or belt-pack transmitter. The receiving module (rx) is characterized by noise amplification, frequency mixing, local oscillation, mcu frequency control and other functions. Together with audio circuit, it may be made into a complete wireless mic receiver.
M3000 golden phoenix is a display board for m3000 high frequency module of a mini walkie-talkie from mc devices. With m3000 golden phoenix, main functions of walkie-talkies could be realized.
Main functions
Frequency: any frequency point within 315mhz-385mhz or 390mhz-470mhz
Power: 0.5w--1w(test voltage: 4.2v); 2w(test voltage: 7.4v)
Receiving sensitivity: <-120dbm
Ctcss code: 38 codes
Scanning function(scan)
Automatic squelch function
Lcd indicator, tx, rx indicator
Digital volume regulation (8 scales)
5 calltone for selection
Key beep
Transmission-completed beep
Sound output of speaker and headphone for selection
Sleep mode
External mcu interface (further software assistance is available)
M3000 high-frequency module has two types: m3000a and m3000d, with different frequency band. The module consists of transmitting voice signal, modulation, power amplification, noise amplification, voice signal demodulation and signals procession. It begins to work normally by simply adding an external mcu, an audio amplifier, a mic (microphone) and a speaker.
The module is with small volume. It is easy to develop within short period. It could be made into small walkie-talkie, and be used in other mobile handheld devices. It is practical and easy to use, and may be widely used in gifts, catering, tourism and other industries.
M3000 silver phoenix is a mini walkie-talkie module developed by mc devices. Its size is as small as 31.75mm (length)x 20.828mm (width)x 6.5mm (height). A walkie-talkie is made by simply adding external speaker and power. The front side of m3000 silver phoenix is control board equipped with mcu, and its back side is m3000 high frequency module.
M3000 silver phoenix may be easily embedded in a variety of portable devices, and work as walkie-talkies, which are widely used in tourism, hotel service and gifts. The easiest way is to fix a channel directly on the board, and connect a speaker and power. For more complicated application, channels selection and volume regulation may be achieved by simply adding a dip switch.
Main functions
Frequency:: 4-32 frequency points are randomly selected within 315mhz-385mhz or 390mhz-470mhz (occupying 2-5 i/o ports)
Power: selected between 0.5w-1w(test voltage: 4.2v)
Receiving sensitivity: <-120dbm
Ctcss code: 0-8 selectable codes (occupying 0-3 i/o ports)
Volume regulation: 2-4 scales may be set by external dip switch (occupying 1-2 i/o ports), and the default set is the lowest volume.
Automatic squelch function
Tx, rx indicator
Sleep mode
No jarring sound after ptt call (standard function)
Notes:: there are only 5 i/o ports in silver phoenix mcu, so customers should select ports reasonably.
1. Features
*Digital audio with 64K sampling rate and 16-bit resolution.
*Low power consumption.
*GFSK digital modulation/demodulation.
*20Hz ~ 20 KHz audio frequency response.
*90dB audio dynamic range.
*Power-on function to prevent pop noise.
*Avoiding reception errors by employing forward error correction (FEC).
*Operating at 2.4GHz ISM band with 20 selectable channels.
*-85dBm receiving sensitivity, 45dB channel rejection and Application distance up to 180 meters (L. O. S. ) with perfect reception.
2. Applications
*Car Audio /Car Speaker
*Home theater rear speakers
*Wireless speakers
*Sound Card, MP3, CD player and DVD player
*Headphone
*Ordinary sound box
3. Specification
Model NO. SOYO-WT24G01-T SOYO-WT01-R
Description Transmitter Box Receiver Box
Supply voltage 3.6-12V 2.5-3.6V
Current consumption 110mA (MAX) 40mA (MAX)
Operating temperature -25 ~ 85 degree -25 ~ 85 degree
Frequency range 2400 ~ 2524MHz 2400 ~ 2524MHz
Modulation GFSK
Channel number 20 20
Channel cpacing 4MHz 4MHz
TX Power(MAX) 20dBm(Can choose from 0dBM till 20dBM)
Input impedance >10K Ohm
Input level 2.5Vp-p (MAX)
RX Sensitivity -85 dBm (Typical)
Image rejection >30dB @ the image frequency
Output impedance < 1K Ohm
Output level 2 Vp-p (MAX)
Response 20~20KHz
Dynamic range 88dB (Typical)
SN ratio 95dB (Typical)
THD 0.1% (Typical)
1. Features
*Digital audio with 64K sampling rate and 16-bit resolution.
*Low power consumption.
*GFSK digital modulation/demodulation.
*20Hz ~ 20 KHz audio frequency response.
*90dB audio dynamic range.
*Power-on function to prevent pop noise.
*Avoiding reception errors by employing forward error correction (FEC).
*Operating at 2.4GHz ISM band with 20 selectable channels.
*-85dBm receiving sensitivity, 45dB channel rejection and Application distance up to 180 meters (L. O. S. ) with perfect reception.
2. Applications
*Car Audio /Car Speaker
*Home theater rear speakers
*Wireless speakers
*Sound Card, MP3, CD player and DVD player
*Headphone
*Ordinary sound box
3. Specification
Model NO. SOYO-W24G01-T SOYO-WT01-R
Description Transmitter Box Receiver Box
Supply voltage 3.6-12V 2.5-3.6V
Current consumption 110mA (MAX) 40mA (MAX)
Operating temperature -25 ~ 85 degree -25 ~ 85 degree
Frequency range 2400 ~ 2524MHz 2400 ~ 2524MHz
Modulation GFSK
Channel number 20 20
Channel cpacing 4MHz 4MHz
TX Power(MAX) 20dBm(Can choose from 0dBM till 20dBM)
Input impedance >10K Ohm
Input level 2.5Vp-p (MAX)
RX Sensitivity -85 dBm (Typical)
Image rejection >30dB @ the image frequency
Output impedance < 1K Ohm
Output level 2 Vp-p (MAX)
Response 20~20KHz
Dynamic range 88dB (Typical)
SN ratio 95dB (Typical)
THD 0.1% (Typical)
Classic Design Home Professional Indoor Outdoor Portable RGB tws mini Speaker Box with Microphone
1. It is a Portable Outdoor Mini Bluetooth Speaker. It is small, light, waterproof but with powerfull bass. It is a backpack
speaker, a bicycle speaker. And the most amazing thing is it is a magnetic speaker.
2. Magnetic Bluetooth Speaker: The base of this Portable outdoor mini speaker comes with 4 super strong magnets. It can be attached to the iron-coataining object, and can be placed at will, play with idea and creat your interesting life.
3. Portable Small Bluetooth Speaker: Light and compact. Small and convenient to carry.
4. Bicycle Speaker: The speaker comes with a silicone carrying handle, you can easily hang it on the handlebars of the bike.
5. Small But Powerful Speaker: It come with 6W powerfull loadspeaker unit. The special passive radiator edge around the speaker unit create powerful bass.
6. 360 full-range sound effects, satisfy your picky ears: Professional-grade branded loudspeaker with clear and dynamic sound,superb overall balance, full bass and loud treble.
7. IPX4 Waterproof: Carry it to anywhere anytime you want. You don't need to worry about raining or splashing
