Radio Shack 20-418 Скачать руководство пользователя страница 43

Страница: 43 / 44

IF Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1st IF: 370.7 MHz

2nd IF: 10.85 MHz

3rd IF: 450 kHz (NFM)

Audio Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Watt Maximum

Built-In Speaker . . . . . . . . . . . . . . . . . . 2

-Inch (57 mm), 8-Ohm, Dynamic Type

Maximum Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mA

Power Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Volts

AC Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supplied

DC Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RadioShack Cat. No. 270-1533

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Inches (HWD)

(82

235

205mm)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 lb, 17 oz

(960 g)

Specifications are typical; individual units might vary. Specifications are subject to
change and improvement without notice.

20-418.fm Page 43 Wednesday, August 4, 1999 12:42 PM

Содержание 20-418

Страница 1: ...Cat No 20 418 OWNER S MANUAL PRO 2045 200 Channel Weather Alert Home Scanner Please read before using this equipment 20 418 fm Page 1 Wednesday August 4 1999 12 42 PM...

Страница 2: ...d weather frequen cies so you can stay informed about current weather conditions Hyperscan scans programmed channels at up to 50 channels per second Hypersearch lets you set the scan ner to search at...

Страница 3: ...ts the modulation method nar row band frequency modulation NFM or amplitude modulation AM most often used for each band and lets you manually override the preset mode Attenuator reduces the scanner s...

Страница 4: ...pager ser vices and wireline telephone and telegraph service providers It is legal to listen to almost every transmission your scanner can receive However there are some transmissions you should never...

Страница 5: ...at the Display 16 Understanding Channel Storage Banks 18 Channel Storage Banks 18 Monitor Memories 18 Operation 19 Turning On the Scanner Setting Volume and Squelch 19 Using the Rotary Control 19 Sto...

Страница 6: ...o Programmed Channels 30 Using the Count Feature 31 Using CTCSS 31 CTCSS Tone Frequencies 31 Assigning a CTCSS Tone Frequency to a Channel 32 Changing or Deleting a CTCSS Tone Frequency for a Channel...

Страница 7: ...e you connect it to an AC outlet Disconnect the adapter from the AC outlet before you dis connect it from the scanner If you have difficulty inserting the AC adapter s plug do not force it Turn it ove...

Страница 8: ...hese steps to in stall the supplied antenna 1 Hold the antenna so it stands straight up 2 Gently push the antenna s plug onto the ANT jack on the scan ner s back panel The antenna s length affects rec...

Страница 9: ...iances other radios and so on The external antenna should be vertical Mount the antenna following the in structions supplied with the antenna and its mounting hardware then route the antenna cable to...

Страница 10: ...k on Wednesday between 11 AM and 12 Noon To find out the spe cific test schedule in your area con tact your local National Oceanic and Atmospheric Administration NOAA or National Weather Service offic...

Страница 11: ...RPHONE For private listening plug an earphone or mono headphones 1 8 inch plug into the jack on the front of the scanner This disconnects the internal speaker Note Your local RadioShack store has a wi...

Страница 12: ...tension speaker INSTALLING AN OPTIONAL CTCSS TONE BOARD The scanner s CTCSS Continuous Tone Control Squelch System feature lets you choose to listen only to trans missions that transmit one of 38 stan...

Страница 13: ...and J10 on the top of the scanner s circuit board 4 Replace the scanner s top cover then replace the two side screws and three bottom screws Note For information about using CTCSS see Using CTCSS on...

Страница 14: ...h skip memory TRANSFER transfers the contents of a channel to an empty or desired channel or exchanges the contents of two channels MODE selects the modulation mode AM and FM function DATA turns on or...

Страница 15: ...lets you directly enter a channel number PROGRAM programs frequencies into channels MONITOR accesses the 10 monitor memories See Moving a Frequency from a Monitor Memory to a Channel on Page 23 DELAY...

Страница 16: ...r is in the auto store mode or when the auto sort function is turned on COUNT appears when you use the scanner s count feature CTCSS appears when the CTCSS feature is turned on DATA appears when you t...

Страница 17: ...ry called a monitor This scanner has 200 channel memories and 10 monitor memories Channel Storage Banks To make it easier to identify and select the channels you want to listen to channels are divided...

Страница 18: ...re vent accidentally changing the chan nel or frequency STORING FREQUENCIES You can store up to 200 frequencies into your scanner s channels Good frequency references are Ra dioShack s Police Call Gui...

Страница 19: ...cies Note You can use the scanner s de lay feature during a limit search see Delay on Page 26 Follow these steps to search for active frequencies 1 Press PROGRAM then LIMIT Lo and a frequency appear o...

Страница 20: ...gain or press and hold s or t for more than 1 second to resume the limit search Direct Search A direct search lets you specify a starting frequency then search for ac tive transmissions above or below...

Страница 21: ...an nel You can program up to 50 fre quencies for the scanner to skip Notes If you program more than 50 skip frequencies each new frequency replaces one you already stored You can select the skipped fr...

Страница 22: ...ys enter the numbers of the banks where you want to store frequencies The selected banks indicators appear steadily in the display All other banks indicators flash Notes To select bank 10 press 0 If y...

Страница 23: ...n scanning channels press SCAN The scanner scans through all non locked channels in the activated banks See Turning Channel Stor age Banks On and Off below and Locking Out Channels on Page 25 Note If...

Страница 24: ...elect the banks while the scan ner is scanning 2 Press MANUAL to stop scanning 3 Press and hold LOCKOUT until the scanner beeps twice MANUALLY SELECTING A CHANNEL You can continuously monitor a spe ci...

Страница 25: ...ess ALERT ALERT appears When NOAA broadcasts a severe weather emergency signal the scan ner sounds a loud alarm regardless of the volume control setting The alarm continues until the emergency signal...

Страница 26: ...s DELAY while the scanner is monitoring the channel or while the scanner is searching DLY disappears from the display PRIORITY The priority feature lets you scan through channels and still not miss im...

Страница 27: ...el to the highest numbered priority chan nel It stays on the channel if there is activity and P appears on the display To turn off the priority feature press PRIORITY PRI disappears CHANGING SEARCH SP...

Страница 28: ...paus es and frequencies To skip data signals press DATA until DATA appears To turn off data skip press DATA until DATA disappears TURNING ON OR OFF THE KEY TONE Your scanner beeps each time you press...

Страница 29: ...t another bank Transferring to a Channel that has a Stored Frequency 1 Press MANUAL to stop scanning 2 Press FREQ CHAN LOCK until CHAN appears on the display 3 Using the number keys or the rotary tune...

Страница 30: ...r Each group sets their transmitters to different CTCSS fre quencies and sets their receivers to only let them hear transmissions that include the correct CTCSS frequency This helps to avoid radio int...

Страница 31: ...ency Turn the rotary tuner counterclockwise to step down the displayed tone frequency 6 Press E The channel number stops flashing 7 Press MANUAL The scanner dis plays the channel and frequency 8 To tu...

Страница 32: ...resting GUIDE TO FREQUENCIES National Weather Service Frequencies Ham Radio Frequencies Ham radio operators often broadcast emergency information when other means of communication break down The follo...

Страница 33: ...re that no other nearby radio or TV sets are turned on near the receiver Use the search function and search every frequency range from its lowest frequency to the highest Occasionally the searching wi...

Страница 34: ...11 00 384 00 MHz U S Government 406 00 450 00 MHz 70 Centimeter Amateur 420 00 450 00 MHz Low Range 450 00 470 00 MHz Public Service 806 00 823 98 MHz Conventional Systems 851 00 856 00 MHz Convention...

Страница 35: ...Mobile Paired Frequencies 450 000 470 000 Base Stations 451 025 454 950 Mobile Units 456 025 459 950 Relay Repeater Units 460 025 464 975 Remote Control Stations 465 025 469 975 SPECIFIED INTERVALS Fr...

Страница 36: ...tional Trunked Systems FIRE Fire Department HAM Amateur Ham Radio GOVT Federal Government GMR General Mobile Radio GTR General Trunked IND Industrial Services Manufacturing Construction Farming Forest...

Страница 37: ...quency VHF 30 MHz 300 MHz Low Band 29 7 50 MHz in 5 kHz steps 29 700 29 790 IND 29 900 30 550 GOVT MIL 30 580 31 980 IND PUB 32 000 32 990 GOVT MIL 33 020 33 980 US IND PUB 34 010 34 990 GOVT MIL 35 0...

Страница 38: ...0 162 550 WTHR 162 5625 162 6375 GOVT MIL USXX 162 6625 MED 162 6875 163 225 GOVT MIL USXX 163 250 MED 163 275 166 225 GOVT MIL USXX 166 250 GOVT RTV FIRE 166 275 169 400 GOVT BIFC 169 445 Wireless Mi...

Страница 39: ...9875 CSB Conventional Trunked Systems Band Locally Assigned 856 0125 860 9875 CTSB Trunked Systems Band Locally Assigned 861 0125 865 9875 TSB Public Safety Band Locally Assigned 866 0125 868 9875 PS...

Страница 40: ...r DC outlet Scanner is on but will not scan SQUELCH is not cor rectly adjusted A channel has been manually selected Adjust SQUELCH clockwise Press SCAN While scanning the scanner locks on fre quencies...

Страница 41: ...only in normal tem perature environments Temperature extremes can shorten the life of electronic devices and distort or melt plastic parts Keep the scanner away from dust and dirt which can cause pre...

Страница 42: ...1 5 V S N N 20 dB 230 05 MHz 1 5 V 325 05 MHz 1 5 V Direct Limit Search Speed Normal Speed 100 Steps Second Hypersearch 300 Steps Second Scanning Speed 50 Channels Second Priority Channel Sampling In...

Страница 43: ...m Current Drain 500 mA Power Requirement 12 Volts AC Adapter Supplied DC Adapter RadioShack Cat No 270 1533 Dimensions 31 4 91 4 81 16 Inches HWD 82 235 205mm Weight 1 lb 17 oz 960 g Specifications ar...

Страница 44: ...store War ranty does not cover transportation costs Nor does it cover a product subjected to mis use or accidental damage EXCEPT AS PROVIDED HEREIN RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPL...

Результаты поиска

Содержание 20-418

Отзывы:

Radio Shack 20-418, Руководство пользователя, Страница: 43 / 44

Результаты поиска

Содержание 20-418

Отзывы: