Tuam Tshoj Dual Wireless Microphone Suppliers Professional rau KTV project Chaw tsim khoom thiab Hoobkas |Lingjie

Dual Wireless Microphone Suppliers Professional rau KTV qhov project

Qhov ntsuas qhov system

Xov tooj cua zaus: 645.05-695.05MHz (A channel: 645-665, B channel: 665-695)

Siv tau bandwidth: 30MHz ib channel (60MHz tag nrho)

Modulation method: FM zaus hloov pauv Channel naj npawb: infrared tsis siv neeg zaus sib piv 200 raws

Ua haujlwm kub: rho tawm 18 ° C mus rau 50 ° C

Squelch txoj kev: tsis siv neeg lub suab nrhiav thiab cov lej ID squelch

Offset: 45KHz

Dynamic ntau yam:> 110dB

Suab teb: 60Hz-18KHz

Cov teeb liab-rau-lub suab nrov piv:> 105dB

Kev tsis sib haum xeeb: <0.5%

Receiver indicators:

Txais hom: muab ob npaug rau-hloov superheterodyne, dual-tuning tseeb ntau haiv neeg txais tos

Oscillation hom: PLL theem xauv lub voj

Intermediate zaus: thawj zaus nruab nrab: 110MHz,

Qhov thib ob nruab nrab zaus: 10.7MHz

Kav hlau txais xov interface: TNC lub rooj

Kev pom zoo: LCD

rhiab heev: -100dBm (40dB S/N)

Spurious suppression:> 80dB

Suab tso zis:

Tsis sib npaug: +4dB (1.25V) / 5KΩ

Ntsuas: +10dB (1.5V) / 600Ω

Lub zog hluav taws xob: DC 12V

Lub hwj chim tam sim no: 450mA

Transmitter indicators: (908 tso tawm)

Oscillation hom: PLL theem xauv lub voj

Lub zog tso zis: 3dBm-10dBm (LO / HI hloov pauv)

Roj teeb: 2x "1.5V No. 5" roj teeb

Tam sim no: <100mA (HF), <80mA (LF)

Siv sij hawm (alkaline roj teeb): li 8 teev ntawm lub zog siab

Yooj yim malfunctionkev kho mob

kev ua haujlwm tsis zoo	Ua haujlwm tsis zooua rau
Tsis muaj kev taw qhia ntawm receiver thiab transmitter	Tsis muaj hwj chim ntawm transmitter, receiver fais fab tsis txuas zoo
Lub receiver tsis muaj RF teeb liab	Lub receiver thiab transmitter zaus bands txawv los yog tawm ntawm qhov kev siv tau
Muaj xov tooj cua zaus teeb liab, tab sis tsis muaj suab teeb liab	Lub transmitter microphone tsis txuas nrog lossis lub receiver squelch yog dhau lawmtob
	Lub suab qhia Circuit Court malfunction
	Kev teeb tsa hom ntsiag to
Lub suab teeb liab tom qab lub suab nrov dhau lawm	Transmit modulation zaus sib txawv me me dhau, tau txais cov zis hluav taws xob Qib qis, Los yog muaj teeb meem cuam tshuam
Suab teeb liab distortion	Kev xa tawmtermodulation zaus sib txawv heevloj, receiver tso zis hluav taws xob Level yog loj heev
Kev siv nrug yog luv luv, lub teeb liab tsis ruaj khov	Lub transmitter teeb lub hwj chim yog tsawg, thiab lub receiver squelch yog tob heev. Kev teeb tsa tsis raug ntawm cov kav hlau txais xov thiab cov roj teeb muaj zog cuam tshuam ib puag ncig.