●UHF band makes fewer interference compared with the conventional VHF band and more reliable transmission;
●DQPSK digital modulation offers up to 200 channel options at 300KHZ channel intervals over a 60MHZ frequency range. Because of the inherent high immunity of digital modulation to intermodulation interference, it is very simple and convenient to use multiple sets of machines at the same time (e.g. 5 sets, a total of 20 transmitting docks at the same time), easy to avoid all kinds of interference
●Digital modulation and transmission technology with random unique IDs completely avoids the risk of off-site eavesdropping on traditional wireless conferencing microphone systems using FM modulation! Ensure confidentiality in signal transmission
●The receiver uses DQPSK dual antenna true diversity reception, in the normal indoor use radius of 30-60 meters in the environment, completely avoid the traditional analog FM modulation of the single antenna reception mode possible sound loss, noise problems!
●Digital modulation and high-fidelity reception ensure consistent audio metrics throughout the machine! It will not deteriorate with the increase of the transmission distance, as in the traditional FM modulation mode (with the traditional FM reception mode, the receiving noise, distortion and other indicators will be worse with the increase of the transmission distance!) ）
●Whether the receiver, or the transmission base, are using high-definition color LCD TFT display, so that the receiver and transmitter operating state at a glance.
●The TFT display information of the front panel of the receiver includes: under normal operation, the channel number of each channel in real-time operation of the two channels (A/B/C/D/E/F/G/H), RF operating frequency point, volume series display, real-time AF, RF signal strength display, real-time battery display of each channel transmitter and other important information; The smooth UI interface allows field engineers to operate quickly and skillfully!
●The TFT display information of the emission base includes: after infrared frequency, the status of the working channel (A/B/C/D/E/F/G/H) where the transmit base is located, RF frequency point, RF power gear display, real-time display of important information such as speaking time, AF level, battery level, etc.
Optional gooseneck microphone/handheld/collar clip
Specifications and parameters
System indexes
Range of frequency: 600-660/620-690/640-700/……/880-940/900-960MHz (A total of 16 optional operating bands with a total frequency coverage of 360MHz.)
Modulating mode: DQPSK
RF Working bandwidth：60MHz
Channel number: 200
Channel interval: 300KHz
Frequency stability:±0.005%
Dynamic range:100dB
Audio response: 60Hz-18KHz(±3dB)
Total SNR:>106 dB
Total distortion: ≤0.2%
Operating temperature: -10℃ -+40 ℃
Receiver indexes
Receiver mode: DQPSK dual antenna true diversity receive
Wireless interface: BNC/50Ω
Maximum output level:+10dBV
Transmitter index:
Wireless mode: wearing transmitter 1/4 wavelength whip antenna, handheld microphone built-in helix antenna
Output power: high power 10mW; low power 3mW
Spurious suppression: -60dB
Power supply: 2 pieces of AA batteries（2800mah）
Duration: more than 8 hours at 10mW; more than 12 hours at 3mW
Excellent multi-machine stacking mechanism
Up to 5 sets (20 conference transmitter) modulating methods under the same space and the same frequency band:
Set1：A01、B03、C05、D07
Set2：A11、B13、C15、D17
Set3：A21、B23、C25、D27
Set4：A32、B34、C36、D38
Set5：A41、B43、C46、D49
MEMO：
Specific work frequency point settings, according to the actual environmental conditions, jump away from the environment interference frequency point can be (receiver comes with RF environmental noise level detection and display function, like a simple version of the spectrum instrument, very convenient for field engineering personnel debugging and installation work), and ensure that the number of channels per channel is greater than or equal to 2 can be. For example, A21/B23/C25/D27, or A32/B34/C36/D38, etc. (i.e. the operating frequency interval between channels is greater than 2.4M).
Telecommunication channels and frequency range:（Take the operating band of 600-660MHz）：
CHANNEL A: CH-A01 ~ CH-A50
FREQUENCY: 600.000MHZ ~ 658.800MHZ with STEP=1.2MHz
CHANNEL B: CH-B01 ~ CH-B50
FREQUENCY: 600.300MHZ ~ 659.100MHZ with STEP=1.2MHz
CHANNEL C: CH-C01 ~ CH-C50
FREQUENCY: 600.600MHZ ~ 659.400MHZ with STEP=1.2MHz
CHANNEL D: CH-D01 ~ CH-D50
FREQUENCY: 600.900MHZ ~ 659.700MHZ with STEP=1.2MHz
Schedule：“FREQUENCY SELECTION TABLE”
M1008/A3 receiver dimension figure
M1008/A3 receiver panel function is displayed
