User manual UNIDEN MHS550

[. . . ] This transmitter operates on channels/frequencies that have restricted use in the United States. The channel assignments include frequencies assigned for exclusive use of the U. S. Operation on these frequencies without proper authorization is strictly forbidden. without an individual license, please contact the FCC Call Center at 1-888-CALL-FCC (1-888-5-53). [. . . ] See Setting CTCSS Codes on Page 41. Operation - AM Band The AM Band lets you listen to standard AM broadcasts between 500 and 1800 KHz depending on the chosen frequency step option. To select that option, and others, refer to Accessing the Menus on Page 35. The stations are selected rapidly and the radio stops on the next strong station. Uniden MHS550 Radio Owner's Manual 3 Note: AM broadcasts are subject to interference from many outside sources, as well as weather disturbances. The signal strength and atmospheric conditions can also play a part in reception. Operation - FM Band 1. Momentarily press BAND/1/2. 5/5W to switch to the FM band. Press either or to select a local FM station. The default (USA) step option is 00MHz per press of either the or key. If selected, Europe replaces USA in the upper right corner of the LCD. Note: Typical FM broadcasts rarely reach more than 30 miles from the transmitter and terrain may also be a factor. . Operation - Aircraft Band 1. Hold down either key to change frequencies rapidly. . · The default aircraft step option is 5KHz steps per press of either the or key. · After holding for more than a second, if you release it, the radio will scan all frequencies until it finds a signal, and will stay on that frequency. Uniden MHS550 Radio Owner's Manual 33 · Memory channels can be added and deleted as in VHF mode. Press SCAN/MEM to scan those channels in memory until a channel with signal is reached. Using the Radio Menu Options The MHS550 lets you select options that personalize your use of the radio and makes using it more convenient. The options for each band are: Marine Band FRS Band AM Band FM Band Aircraft Band 34 Uniden MHS550 Radio Owner's Manual Accessing the Menus To access the menu selections for each band, change to that band and press MENU. To exit a menu for any band, press MENU again or use or to scroll to EXIT on that menu. Note: if during any of the following operations you fail to press a key or make a selection in more than 30 seconds, the radio returns to standard marine mode. Each band has several menu options in common while other choices are specific to that band. The option order for each band is: Marine VHF/WX USA/CAN/INT Lamp Adjust Contrast Dual or Tri Watch Key Beep FIPS Codes Channel Name Exit FRS CODE Lamp Adjust Contrast Dual or Tri Watch Key Beep Exit Lamp Adjust Contrast Tuning Steps Key Beep Exit AM FM Lamp Adjust Contrast FM Muting Tuning Steps Key Beep Exit Key Beep Exit Aircraft Lamp Adjust Contrast USA/CAN/INT (U. I. C. ) [Marine Band Only] The radio is set as a factory default to the USA channel frequencies. To change to either Canadian [CAN] or International [INT] channels follow these steps. Press either or until you UIC CHANNELS USA Mode Canadian Mode Intl Mode Exit 35 Uniden MHS550 Radio Owner's Manual . Press ENTER to select it. Scroll to EXIT to exit the menu then press ENTER to return to radio operation. Note: the radio remembers the last selection setting you make when powered down. Lamp (Backlight) Adjust [For All Bands] LAMP ADJUST Always Off Timer Always On Exit The backlight that provides convenient illumination of the keys and the LCD has three settings. To set the on-time duration of the backlight, select Timer then highlight either 5 seconds (default), 30 seconds, 1 minute, or 5 minutes then press ENTER. [. . . ] Dynamic type (8 , 0. 7W) Built-in Electret type Li-Ion Battery Pack (7. 4VDC, 1400mA/hr min) AC Adapter, Drop-In Charger, CLA DC Cord, Alkaline Battery Tray (4xAAA), Belt Clip, Hand Strap -30° C to 50° C. (Battery charge: 0° C to 45° C. ) -30° C to 60° C Input: 100VAC ~ 240VAC, 50/60Hz FCC, IC 10 Hours, Min. Output: 12VDC, 1A Antenna Connectors Controls and Switches Display Backlight Cabinet Size Weight Speaker Microphone Supplied Accessories Operating Temperature Storage Temperature AC Adapter Regulation Battery Life (Li-Ion) Waterproof Grade Compliant to JIS7/IPX7 Immersion Protection Standards. Submersible in one meter of water for 30 minutes without damage. Transmitter Items Frequency Tolerance @ 25° C to 50° C Frequency Stability -20° C to 50° C Carrier Power (MRN, 5W) (MRN 2. 5W) (MRN 1W) (FRS/MRN 0. 5W) Spurious Emission (MRN 5W) (MRN 2. 5W/1W) Modulation Frequency Response 500Hz 2000Hz Microphone Sensitivity (MRN for ± 3kHz Deviation) (FRS for ± 1. 5kHz Deviation) Maximum Deviation@100mV Input (MRN) (FRS with Subaudio) Modulation Distortion 750 S De-emphas 0. 3 to 3kHz BPF Hum and Noise 750 S (MRN) De-emphas 0. 3 to 3kHz PF (FRS) Current Drain @ High Power 5W (MRN) (FRS) Unit Nominal PPM ±0. 5 PPM W 5 W 2. 5 W 1 W 0. 5 dBc 53 dBc 58 dB -6 dB +6 mV 6 mV 6 ±kHz 4. 5 ±kHz 2. 3 % 0. 6 dB dB mA mA 38 35 1500 650 58 Uniden MHS550 Radio Owner's Manual Specifications (cont. ) Receiver Items Sensitivity for 12dB SINAD (MRN) (FRS) (FM Broadcast) (Air) (AM Broadcast) Threshold Tight (FRS) Unit V V V V V V V dB dB Nominal 0. 3 0. 35 1. 0 1. 0 1. 0 0. 1 0. 7 8 6 -6 6 -6 72 40 63 75 -65 50 37 42 53 42 1. 2 0. 45 2. 9 72 220 Limit 0. 4 max 0. 5 max. 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