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
Comprehensive distortion: <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. |
