*) TWO CHANNELS ULTRAWIDE BAND RECEIVER

1. 개요

본 기기는 무선 마이크 시스템의 수신기로 다음과 같은 규격에 준한다.

2. 규격 및 사양

Frequency ranges	: 170 ~ 230MHz (VHF) on request,	470 ~ 800MHz and 960 ~ 1160 MHz (DME) or	806 ~ 810 MHz (JP) or 940 ~ 960 MHz (USA)	or 1240 ~ 1260 MHz (JP)

Switchable channels	: 2400 managed in 40 groups ofr 60 frequencies	completely user customizable

Switching-window	: up to 1090 MHz

Frequencies	: microprocessor controlled PLL frequency	synthesizer circuit, with 5 KHz minimum step;

Frequency error	: < ± 2.5 ppm, within the rated temperature	range

Diversity technique	: true-diversity (Twin receiver circuits)

Modulation	: FM mono, wideband or narrowband	(SW selectable)

Peak deviation	: ±40 kHz (narrowband), ±56 kHz (wideband),	±80 kHz MAX

“A” / “B” antenna inputs	: 2 x BNC type female connectors for inputs,	2 x BNC type female connectors for loop

Antenna input impedance	: 50 ohm (SWR < 1:2)

Antenna booster powering	: +12Vcc / 300mA MAX

Sensitivity

- Normal Mode	: Wideband 2 dBμV / Narrowband -0,3 dBμV

- High Sensitivity Mode	: Wideband 1 dBμV / Narrowband -1,3 dBμV

Amplitude response	: < 0.2 dB (for RF input signal: +4 dBµV ~	+120 dBµV)

Co-channel rejection	: > -3.5 dB @ 2 µV RF; > -1.5 dB @ 100 µV	RF

Adjacent chan. selectivity	: > 90 dB @ ± 300 KHz (wideband), > 90 dB	@ ± 150 KHz (narrowband),

Spurious rec. rejection	: > 90 dB

IF image rejection	: > 110 dB

IIP3	: >= +20 dBm (typical)

Spurious emissions	: < 1pW (typical. = 0.1 pW)

AF bandwidth	: 20 Hz ~ 20 kHz (wideband),	20 Hz ~ 15 kHz (narrowband)

Frequency response	: ± 0.5 dB in the 20 Hz ~ 19 kHz range	(wideband), ± 0.5 dB in the 20 Hz ~ 13 kHz	(narrowband)

Distortion	: 0,08% typ. (nominal deviation @1kHz)

SND/D ratio	: 115 dBA typ.(analog), >130 dBA (AES3/Dante)

Audio output

- 2 XLR-3M connectors + 2 TRS for audio line-outpus trafo balanced (MAIN OUTs with transformer)

- 2 XLR-3M connectors for audio outpus balanced transformer-like floating (AUX OUTs used for PTT)

Audio output level	: +24 dBu @ peak deviation for MAIN and AUX	outputs, +14dBu @ peak deviation for TRS	outputs

Calibrating AF	: tone tone/sweep, up to +24 dBu (on MAIN	and/or AUX outputs)

Digital output

- AES3	: XLR-3M with word clock in/out

- Dante	: 2 x Ethernet 10/100/1000 Base TX RJ45

Digital sample rate	: AES3 @ 48 kHz 24 bit, word clock input from	32KHz to 108KHz

Monitor output	: 1/4" (6.3 mm) stereo jack connector,	max 6 Vrms / 150 ohm, 100 ohm for auricle

Managing interface	: 2 x 10/100/1000 Base TX RJ45 Ethernet,	Infrared, Bluetooth

Bar-graph meters

- RF Level Bars	: RF field strengths (both "A" and "B" inputs)	from 10 to 70 dBμV or LQ (link quality)

- AF Bars	: deviation (5% ~ 150%), with peak-hold mode

Display	: 64 x 256 OLED (yellow)

Dimensions	: 19"/1U

Weight	: 4 kg approx.

* MRK980 동급이상품