We, TM-Korea, have been recognized by the leading techniques of the Wireless Microphone System including Wireless Microphone Receiver, Wireless Microphone Transmitter and Rechargeable Wireless Microphone for use of variety of applications such as conferencing, panel discussions and lectures. Moreover we have introduced USB Internet Radio and SCA Radio with the latest technology.

무제 문서



	Wireless Microphone System


	USB Internet Radio / SCA Radio

	RF-Device

	Boiler

	Factory Robot

	Etc

Rechargeable wireless microphone

Rechargeable Wireless Microphone(WMM-700)

● WMM-700 Receiver+Charger
- Frequency range : 2.400 ~ 2.485GHz
- choros dual mike : ID/each separate
- microphone sensitivity : -45dBuV/pa
- RF power : +10dBm
- receiving sensitivity : -95dB
- audio out put : 2Vrms/max, at 1khz
- signal to noise ratio : 93dB
- total harmonic distortion : -75dB

2.4GHz RF part electrial specfication

Description	Unit	typical	Remark
Operation condditions
supply voltage	V	3.3±0.3	DC(lithium polymer battery)

Receive mode operation
receive senseitivity	@4,000 kbps	dBm	-85	(-95dBm available)
maximum received signal		dBm	0
Current consumption
ATX operation
mean supply current in audio streaming mode		mA	28	0dBm output (RF+ucom+codec+LNN)
			50~62	+10dBm output added power amplifer
peak supply current in audio streaming mode		mA	44	0dB output (RF+ucom+codec+LNA)
ATX operation
mean supply current in audio streaming mode		mA	30	0dB output (RF+ucom+codec+LNA)
			55~65	+10dB output added power amplifer

Audio part electrical specifications

Microphone
Microphone sensitivity	dB	-40±5	at input impedance 600 Ω
input progammable gain	dB	-12~35.25
input gain boost	dB	+20
input equivalent noise	ΦV	150
input resistance	㏀	1.7	input level maximum setting
microphone bias voltage	V	2.7	0.9 x AVDD
Auxiliary analogue input
input gain range	dB	-12~6
input resistance	㏀	4.3	input level maximum setting
Analogue to digital converter
sinal to noise ration	dB	93	A-weinghted filter
total harmonic distorton + noise	dB	-75	-12dBV input Level at 3.3V
channel separation	dBFS	100	1kHz full scal input signal

Wireless Microphone System

Amplifier Speaker

Electronic Teaching Table

Rechargeable Wireless Microphone(WMM-700)