Receiver Items Unit Nominal Limit | Uniden MHS550 guide

Specifications (cont.)

Receiver
Items		Unit	Nominal	Limit
Sensitivity for 12dB SINAD	(MRN)	μV	0.3	0.4 max
	(FRS)	μV	0.35	0.5 max.
	(FM Broadcast)	μV	1.0	3.0 max.
	(Air)	μV	1.0	30 max.
	(AM Broadcast)	μV	1.0	2.0 max.
Squelch Sensitivity	Threshold	μV	0.1	0.25 max.
	Tight	μV	0.7	2.0 max.
CTCSS/DCS Opening SINAD	(FRS)	dB	8	12 max.
Audio Freq. Response 1kHz Ref.		dB	6	3 to 7
(MRN) @ 500Hz
(MRN) @ 2000Hz		dB	-6	-9 to -5
(FRS) @ 500Hz		dB	6	3 to 7
(FRS) @ 2000Hz		dB	-6	-9 to -5
Adjacent Channel Selectivity	(MRN ±25kHz)	dB	72	60 min.
	(FRS ±12.5kHz)	dB	40	30 min.
IM Rejection(MRN)		dB	63	55 min.
Image and Spurious Rejection	(MRN)	dB	75	50 min.
Conducted Spurious Emission		dBm	-65	-57 max.
at the antenna terminal
Hum and Noise Ratio	(MRN)	dB	50	35 min.
	(FRS)	dB	37	32 min
	(AM Broadcast)	dB	42	32 min.
	(FM Broadcast)	dB	53	32 min.
	(Air)	dB	42	32 min.
THD @ Standard Output Power (MRN)		%	1.2	10 max.
Audio Output Power @ 10% THD (MRN)		W	0.45	0.3 min.
Oscillator Dropout Voltage (MRN)		V	2.9	3.8 max.
Current Drain @ No Signal (MRN)		mA	72	85 max.
Current Drain @ Maximum Output (MRN)		mA	220	250 max.

Uniden MHS550 Radio Owner’s Manual

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Uniden MHS550 manual Receiver Items Unit Nominal Limit

Contents

Page FCC/Industry Canada Information Maritime Radio Services Operation Table of Contents USA/CAN/INT U.I.C Selecting and Using Follow these steps to get going Marine Band Quick Start Guide for the MHS550 FRS Band AM Band Weather Band Aircraft Band FM Band Normal Scanning Introduction TripleWatch FCC RF Exposure Information Lithium Ion Battery Pack Warning What’s Included Introduction FeaturesPage 17 18 MHS550 ControlsPage Page Radio Charger Cradle VHF Marine Band Family Radio Service FRS BandLCD Displays Indicator Meanings Page Batteries Indicator Sounds Using the Alkaline Battery Pack Installing the Lithium Ion Battery Pack Battery Life and Indication Mounting on a Wall Mounting the Charging CradleAlkaline Batteries and Radio Performance To Mount the Cradle on a Counter Top Attaching the Belt Clip Operation Marine and Weather Bands Basic Operation, Controls Settup Options Selecting a Channel Setting the Transmitting Power Level To transmit, follow the steps below Transmitting Operation AM Band Operation Family Radio Service Band Operation Aircraft Band Operation FM Band Marine Band FRS Band Using the Radio Menu Options USA/CAN/INT U.I.C. Marine Band Only Accessing the Menus Lamp Backlight Adjust For All Bands Adjusting Display Contrast For All Bands Contrast Adjust Adding Fips Codes For Marine/Weather Band Only Setting the Key Beep For All Bands I t 03A CG Only Changing Channel Names For Marine Band Only Code Setting Ctcss Codes FRS Band OnlyPage Tuning Steps. Press Enter Setting Frequency Steps AM, FM Only Other Options Setting FM Muting FM Band OnlySetting the Key Lock For All Bands Manually Selecting Coast Guard/Distress/Hailing Channels Storing a Channel or Frequency in Memory For All Bands Alert Selecting and Using Weather Channel and Weather Alert WX Sec Immediate Scanning The Basics and Beyond TripleWatch Scanning as above, but also monitors Channel Normal Scanning TripleWatch and DualWatch Scanning VHF FRS Both Watches and Weather Channel VHF-FRS Page Accessory Options Using the External Speaker/Mic Jack Examples of Mode Applications Troubleshooting Care and Maintenance Symptom Cause Remedy Reference Section Specifications Receiver Items Unit Nominal Limit Status Full Name Char Name USA Channel Frequencies Marine Operator Canadian Channel Frequencies Inhiber International Channel Frequencies Port Operation DCS Codes Noaa Channels and FrequenciesCtcss Channels and Frequencies FRS Channels Frequencies Warrantor Uniden America Corporation Uniden Three Year Limited Warranty