Nady Systems U-800 사용자 설명서

19

9. SPECIFICATIONS

Operating Frequency Range  

470MHz–510MHz, two Bands

Freq. Synthesized 

(800 channels switchable) 25kHz/step

PLL system frequency stability 

<0.005%

Frequency Response 

50Hz-18kHz +/-3dB

Dynamic Range 

120dB

Harmonic Distortion 

<0.5%

Modulation 

FM (F3E) +/-50kHz normal, +/-100kHz max

Operating Range 

 150-250 feet typical, 500+feet max line-of-sight 

Receiver System 

 Dual conversion Super Heterodyne with Digi-True 

Diversity (dual antennas with optimum reception 

selected)

Selectivity 

60dB, normal +/-75kHz offset

Image Rejection 

-70dB, minimum

Sensitivity 

-107dBm, normal

Spurious Rejection 

65dB, normal

Mute /Squelch 

 Adjustable (-65dBm to -95dBm), Tone Squelch 

40kHz

Controls 

 Power ON/OFF push switch, VOLUME line level 

pot, MENU, UP/DOWN buttons

LCD Display 

 MUTE, AF/RF bars, A/B diversity, IR, GR/CH, MUTE 

Level,  SCAN, Frequency

LED indicator 

Power on

Audio Outputs 

 LINE OUT UNBALANCED: adjustable line audio 

output 

MIC OUT BALANCED  

Fixed Mic level audio output

Output Impedance 

Unbalanced: 1k Ω and Balanced: for 600 Ω loads

Power Requirement 

22VDC/0.4A

Antennas 

Dual permanently attached swivel antennas

Dimensions 

8.1”W x 7.5”D x 1.75”H (20.7cm x 19cm x 4.4cm)

Weight  

1lbs (454g)

Housing Construction 

ABS Plastic

RF Output Power 

+17dBm Max, +14dBm (25mW typical)

Harmonic/Spurious Emission  -50dBc normal

Impedance 

3.0 k Ω

Controls 

Power and Audio ON/OFF switches, Input Level 

LED Display 

Power ON (GREEN), Low Battery ON (RED)

Antenna Type 

Integral 

Battery Type 

2 x AA alkaline batteries operation

Battery Life 

8-10 hours typical

Dimensions 

9”L x 2”D (22.86cm x 5.08cm)

Weight (w/o batteries) 

11.6oz (329g)

Housing Construction   

Metal