20-426 DRAFT Owner’s Manual Please read before using this equipment. © 2004 RadioShack Corporation. All Rights Reserved. RadioShack, Adaptaplug, Hypersearch, and Hyperscan are trademarks used by RadioShack Corporation. Motorola, Smartnet, and Privacy Plus are registered trademarks of Motorola Inc. is a registered trademark of GE/Ericsson Inc. Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programming Frequencies into Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Deleting a Stored Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Duplicate Frequency Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Memory Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programming a Hybrid System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Setting the Base, Spacing Frequencies and Offset Channel for Motorola VHF/UHF Trunked Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Toggling the Status Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
different from scanning because you are searching for frequencies that have not been programmed into your Scanner’s channels. The scanner automatically chooses between two speeds while searching. During search mode the scanner will search 100 frequencies per second for band with 12.5 kHz steps and during Turbo SEARCH mode the scanner can achieve up to 300 frequencies per second for bands with 5 kHz steps. What is Trunk Tracking? Conventional scanning is a simple concept.
type of scanning is difficult and frustrating. TrunkTracker Technology changes this! Not only does your new 20-426 scan channels like a conventional scanner, it actually follows the users of a trunked radio system. Once you know a talkgroups ID, you won’t miss any of the action. If you're a new scanner enthusiast, you may want to read the first part of this manual and use your scanner in conventional mode before you begin trunk tracking.
frequencies to maintain faster scanning cycles or for storing all the frequencies of a trunked system. • 25 MHz-956 MHz – Indicates the range of frequencies that can be searched within the bands of your scanner. Note: The frequency coverage is not continuous and excludes the cellelar telephone Band. • 5 Priority Channels – You can assign one priority channel in each bank.
(800) 554-3988 (Hours are from 8:00 a.m. to 5:00 p.m. Central Time Monday through Friday.) • Local Dealer Information on the Internet If you have access to the internet, you may want to visit one of the following websites for additional information: scanner.Radio Shack.com www.bearcat1.
For Home Use (Desktop Installation) 1. Insert the DC plug end of the AC Adapter into the DC 12V jack on the rear panel. 2. Plug the AC Adapter into a standard 120V AC wall outlet. 3. Plug the Telescoping Antenna into the ANT connector. Extend the antenna to its full height. For frequencies higher than 406 MHz, shortening the antenna may improve the reception. 4. Use the desktop stand for a better viewing and operating angle.
3. Drill the necessary holes and secure the mounting bracket in place using the screws provided. 4. Mount the radio to the bracket only after the wiring has been connected to the rear panel. Connecting the Power Cord Note: If you are not experienced in connecting accessories to the vehicle fuse box, please see your automotive dealer for advice on proper installation. Installation for everyday use: 1.
mm). Caution: Be sure to avoid obstructions behind the mounting surface. Follow these steps to mount the scanner in your vehicle. 1. Choose a mounting location, then use the supplied mounting bracket as a template to mark the positions for the mounting screw holes. 2. In the marked positions, drill holes slightly smaller than the supplied screws. 3. Attach the mounting bracket to the mounting location using the supplied screws and lock washers. 4.
mA. You must use a power source that supplies 12V DC and delivers at least 500 mA. Your standard 12V car battery should be sufficient. The cord connector’s center tip must be set to positive and its plug must fit the scanner’s DC 12V jack. The supplied DC power cord meets these specifications. Using a power cord that does not meet these specifications could damage the scanner or the adapter. • Always connect the adapter or DC power cord to the scanner before you connect it to the power source.
When you finish, disconnect the adapter from the AC power before you disconnect it from the scanner. 1. Insert the adapter’s barrel plug into the DC 12V jack on the rear of the scanner. 2. Plug the adapter into a standard AC outlet. Note: Use only the AC adapter supplied with your scanner. Connecting an External Speaker In a noisy area, an external speaker (available at a local electronics store) positioned in the right place might provide more comfortable listening. Plug the speaker cable’s 1/8 inch (3.
1. Highway Patrol Scanning When you select a state you want to scan in Highway Patrol mode, you can scan pre-programmed Highway Patrol frequencies. 2. Service Scanning Press SVC to select one of the nine services to find an active frequency. 3. Band Search Select a frequency band to search. The Search function is different from scanning. It searches for any active frequency step by step within the lower and upper limits of the band.
MUTE ALERT Turn SQL VOL push ALERT FLASH MUTE ALERT Alert Light Page 14 15 How Squelch Works Think of “SQUELCH” as a gate. If the gate is too low (squelch too low), everything (all noise as well as signals) gets through. If the gate is set too high (squelch too high), nothing gets through. If the gate is set just right (squelch set properly), just the desired signals get through. Setting the Squelch 1. To set the squelch, press HOLD/RESUME to stop scanning.
Weak Signals Noise SQL push FLASH MUTE ALERT Turn SQL push FLASH MUTE ALERT Turn Page 15 Highway Patrol Scanning Highway Patrol frequencies are pre-programmed on a state-by-state basis. When Highway Patrol scanning, the Highway Warning Alert is activated. Selecting the State 1. Press STATE to select the state you are operating in. Press and hold STATE to scroll rapidly. Hint: For the State Code Order, please see page 56. 2.
Page 16 17 Highway Patrol Scan Hold 1. When scanning stops on a desired frequency, press HOLD/RESUME to hold on that frequency as long as you like. When in the HOLD mode, press the ▲ or ▼ key to step up or down the frequency. To step up or down rapidly, press and hold the ▲ or ▼ key. If you change into a frequency which is a control channel, the scanner may display the Active ID (When TRUNK mode is active). 2. To resume scanning, press HOLD/RESUME.
ALERT FLASH MUTE ALERT Alert Light Flashes VOL push ALERT MUTE ALERT Push In VOL push ALERT FLASH MUTE ALERT MUTE LED Flashes Page 17 • Press MUTE to cancel One Moment Mute. • Press and hold MUTE for two seconds to cancel Continuous Mute. You hear two beeps and the MUTE LED goes out. • Change states. The MUTE LED goes out after scanning starts. • Turn the scanner off and on. Note: If MUTE is pressed for less than 2 seconds during the Continuous Mute mode, nothing will be changed.
the frequency is skipped of both states. If you change the state code, skipped frequencies are cancelled as soon as scanning starts. Priority Channels Each state preprogrammed in the scanner contains a number of Priority channels. The scanner automatically checks a state’s Priority channels every two seconds for activity. If there is activity on one of the Priority channels, the ALERT Light will flash and the alarm tone will beep (see “Highway Warning Alert,” page 17).
mode is especially recommended for the following states: (Arizona) (Michigan) (Delaware) (Oklahoma) (Florida) (Wisconsin) “PRI” flashes when you select Priority Only Mode. • Priority off mode The scanner does not check the Priority frequency. “PRI” will not displayed. 20-426 8/22/03 1:40 PM Page 19 Trunked Highway Frequency Trunked Highway frequencies are pre-programmed for each state. When the scanner finds the control channel data, the scanner begins to find any active IDs.
Before the scanner begins Private Bank scanning, you must program a frequency into at least one channel. Program frequencies you purchased from your dealer, from various free and FCC-based sources on the internet, or from the Frequency guide included in 20-426 package. You will need to program each frequency into the scanner’s channels in order to hear these frequencies. 1.
Note: The smallest channel appears on the display when you store same frequency in two or more channels. Memory Lock To avoid the accidental programming frequencies and talk group IDs, you can lock the memory with Memory Lock. Press and hold M-LOCK for 2 seconds to activate this feature ,and “M-LOCK” appears on the display. If you press E to program memory, you will hear two beeps. To deactivate Memory Lock, press and hold M-LOCK for 2 seconds again. Scanning Private Bank 1.
Hold/Resume If you want to stop on a channel during scanning, press HOLD/RESUME. If you want to resume scanning, press HOLD/RESUME. Direct channel access: There are several ways to access a specific channel quickly. 1. Press HOLD/RESUME. 2. Using the keypad, enter the channel number. 3. Press HOLD/RESUME again. Note: You can also use the PVT, ▲ or ▼ key instead of pressing HOLD/RESUME. Channel Lockout You can lockout any channel so it is not checked during normal scanning.
You can restore all locked-out channels in a bank only when a bank is selected for scan. If you have deselected a bank and you want to restore all of its locked-out channels using the steps below, you must press PVT until “PVT” appears and then enter the number of the bank on your keypad. 1. Press HOLD/RESUME. Note: You must be in Hold mode before restoring all locked-out channels. 2. Press and hold L/O for about 2 seconds. You will hear two beeps when all the channels have been restored.
Page 24 25 Service Scanning The service scan feature allows you to rotate through the following nine service banks. q Local Police and County Sheriffs *1 w Fire and Emergency Medical Service e News Media r Weather (NOAA, weather and Canadian Coast Guard broadcasts) t CB Band y Aircraft *2 u Railroads i Marine Band o Department of Transportation *1 *1) Frequencies are pre-programmed on every U.S. state. *2) Except Aeronautic Radio Navigation (108-117.9875 MHz) 1. Press SVC to select a Service.
To set a Search Bands, enter into the Band Search mode. 1. Press SRCH. The upper and lower limits of the Bands currently selected are on the display. 2. Use the ▲ or ▼ key to select the band you want to search. Wait for about two seconds and the scanner will begin searching that band. Or press HOLD/RESUME to begin immediately. Notes:• You must set the Search Bands prior to any searching. • The scanner automatically increases its search speed up to 300 steps per second for bands having 5 kHz steps.
To skip over a frequency, press L/O when stopping on the frequency you want to skip or when in Search Hold mode. Note: You can program up to 100 skip frequencies. The 101st skip frequency entered causes the first skipped frequency to unlock. To restore a Locked out/Skipped channel. 1. Select the desired frequency by using the ▲ or ▼ key in Search Hold mode. 2. Press L/O, and then press HOLD/RESUME. To restore all skipped frequencies, press and hold L/O for 2 seconds in Search Hold mode.
––– OR ––– 1. For Search mode, while searching press DELAY. 2. “DLY” will appear on the display. 28 20-426 8/22/03 1:40 PM Page 28 29 Trunk Tracking Your 20-426 is tracks three major types of trunked radio systems. These systems are described here. ✎MOTOROLA - Including Type I, Type II, Hybrid, SMARTNET, and Privacy Plus. Motorola systems are widely used by public safety and business users. Most are on the 800 MHz band, and recent systems are appearing on other bands. (see page 43).
Setting the Squelch For trunked reception, a good setting for the SQL control is in the center of the range with the color marker pointing up. See the illustration. If it is set too high, it could prevent your scanner from locking to the Control Channel reliably. If it is set too low, it will slightly delay finding the Control Channel. The best setting is the same as for conventional reception, and is critical for monitoring trunked systems.
You will hear two beeps, and “BANK” and “TRUNK” will begin to flash on the display. 2. Select the bank you want to store the frequency by using the keypad. 3. Select the system you want to track by using the ▲ or ▼ key, then press E.
Trunk Programming mode. Programming Talk Group ID/Scan Lists Scan Lists Each bank of your 20-426 can be a trunk tracking bank and it can be a conventional scanning bank. When you designate a bank as a trunking bank, your scanner sets up 5 Scan Lists, which are simply lists used to store your favorite Talk Group IDs. Each list can contain up to 10 IDs, so you can store a total of 50 IDs for each trunk tracking bank.
For a Type I ID, the Block number, Fleet number and Subfleet number make up the Talk Group ID number. For detail please see page 59. 1. Enter the ID you want to store by using the keypad (ID = Block number + Fleet number + (decimal key) + Subfleet number). 2. Press E. To enter a Full EDACS ID®: 1. Enter the Agency number. 2. Press (decimal key) for the “dash”. 3. Enter the Fleet number and Subfleet number. 4. Press E. To enter a Partial EDACS® ID: 1. Enter the Agency number you want to store.
can monitor the system in several different ways. You will find that Search, Hold, Lockout, Scan and Delay are all similar to conventional scanning. ✎ ID SCAN lets you receive those talkgroups that you store in Scan Lists. ✎ ID SCAN HOLD lets you selectively listen to a talkgroup in your Scan Lists. ✎ ID SEARCH lets you hear all system talkgroup activity. This is the best way to get started. ✎ ID SEARCH HOLD works with Search mode to let you quickly freeze reception on an interesting transmission.
Trunking mode and enter into Private Scan Hold mode. Note: • appears on the display during Trunk Scan instead of simply . ID Scan Hold Feature If you want to stop on a ID during ID scanning, press HOLD/RESUME. To directly access a specific ID location: There are several ways to access a specific ID quickly. 1. Press HOLD/RESUME to enter into Hold mode. 2. Using the keypad, ▲ or ▼ key, enter the ID location number (See page 31). 3. Press HOLD/RESUME. If you want to resume scanning, press HOLD/RESUME.
1. Press and hold SRCH for 2 seconds until you hear two beeps. Then begins flashing and all active talk group IDs appear on the display every 0.5 seconds. 2. To activate ID search mode, press SRCH Note: Lockout ID also appears on the display. ID Search Hold and Direct Entry ID in Hold Mode Just like in Conventional Search, Hold lets you pause ID Search on an interesting transmission without storing the talkgroup into memory.
The ID is locked out. You can Lockout up to 100 IDs. The 101st skip frequency entered causes the first skipped freqnency to unlock. Note: If you Lockout an ID in Search mode, it is also locked out in Scan List mode. Conversely, if you Lockout an ID while in Scan List mode, it is locked out in Search mode. For information about Scan Lists see page 31. EDACS BLOCKOUT is a powerful form of ID Lockout that can be used only with AFS and EDACS systems.
Page 36 37 Setting the Delay Mode for Trunking Mode A default delay of 2 seconds is automatically set for each talkgroup for ID Scan mode and ID Search mode. To set the delay feature on or off, press DELAY while trunking, “DLY” will appear or disappear depending on your setting. Trunking Frequency Confirmation You can check the frequency while a talkgroup ID is active. Press the ▼ key ,and the active frequency on which the talk group is transmitting will flash on the display.
number), then press 0-9 (memory position). For example to move to Scan List 4, memory position 10, press: HOLD/RESUME, 4, 0, HOLD/RESUME Page 37 38 Multi-Track The 20-426 allows you to track more than one system at a time. Here are some highlights of this feature: ✎ You can actually track up to 5 trunking systems at one time. ✎ You can trunk scan, or search and scan conventional frequencies at the same time. ✎ You can program conventional frequencies in the same bank as trunking systems.
bank. The scanner will not look for any other IDs within the same trunked system (as this would slow the scan process). If you press the ▲ key while you are listening to one ID, the scanner will check to see if another ID in your Scan List is active. It will disregard the ID to which you were just monitoring. TRUNK SEARCH: This mode works similarly to Trunk Scan. If the scanner finds any (nonlockedout) ID when it checks the control channel, you will hear it.
between systems/frequencies as follows: TRUNK SCAN: The scanner moves to a trunked system and looks for IDs in your Scan List(s) for up to 1 second. If it finds no activity on your programmed talkgroups, it moves on to conventional channels in the same bank or to the next active bank. If the scanner finds a talkgroup in one of your active Scan Lists, you will begin to hear that communication and the scanner will of course display the proper talkgroup number.
EDACS systems use 'Transmission Trunking', which means that each transmission is assigned a new frequency. As the conversation moves through the system's frequencies, your TrunkTracker III automatically follows it. This chart shows a 30 second sample of EDACS transmissions. Eight different talkgroups are using the system as their transmissions switch between the thirteen system frequencies. Notice how the dotted line shows talkgroup 02-023 moving from channel to channel.
of Sullivan is Agency 03. Adams Hill and Matthew Junction share Agency 08. Your scanner shows EDACS talkgroups in AFS (AgencyFleet-Subfleet) format. This helps you see, at a glance, who you are monitoring. And with the partial-entry feature you can easily include nearby, related channels in the same Fleet or Agency. You can just as easily exclude entire unwanted Fleets and Agencies.
talkgroups, or a single talkgroup. For example, you could program every talkgroup in a police department with just 4 key presses. You can use the AFS Partial Entry feature anywhere you need to specify EDACS talkgroup. Your 20-426 can also enter or display EDACS talkgroups in decimal format (0-2047). 1. Press and hold TRUNK for 1.5 seconds and select the bank you want to change. 2. Use the ▲ or ▼ key to select , then press E. 3. Use the ▲ or ▼ key to select , then press E. 4.
which the scanner tracks any ID, you do not need to program Talk Group ID’s. . LTRR Reception LTRR Tracking LTRR (Logic Trunked Radio) systems are trunking systems used primarily by business or private communications service providers, such as taxicabs, delivery trucks, and repair services. These systems encode all trunking information as digital subaudible data that accompanies each transmission.
and Type II systems place radios (or radio users) into groups, called talkgroups, and these talkgroups are also assigned unique IDs. Some radios have access to only one talkgroup, while others have access to many talkgroups. The talkgroup(s) each radio can access is called the radio’s affiliation(s).
Even though there are many Type II systems, Type I systems are still in use. There are also Hybrid systems which are a combination of both Type I and Type II. Your scanner defaults to monitor Type II systems, but its possible to select a Preprogrammed Fleet Map or create a Custom Fleet Map for your area. For VHF and UHF Type II trunking systems, you will need to know the base, spacing frequencies and offset channels. See page 45 for details.
Note: You will now begin to see Type I Fleet-Subfleet IDs. For example, 100-12, 100-9, 000-12, 400-8, etc. See "User Defined Fleet Maps in the Appendix" for more information about Type I IDs. How do you know if the preset map is correct? You will have to listen to see if you're following complete conversations. If not, you should try another preset map. Programming a User Fleet Map You may want to read "User Defined Fleet Maps" in the Appendix before programming a Fleet Map.
VHF/UHF Trunked Systems To properly track Motorola VHF and UHF trunked systems, you must enter what is known as the Base, Spacing Frequencies and Offset Channels for each system. To find these out, check the scanner.Radio Shack.com or www.trunktracker.com and other web sites and frequency resources. To enter the Base, Spacing Frequencies and Offset Channel: (You can set up to three sets of these, but almost all systems only use one set) 1. Press and hold TRUNK for 1.
mode, you never need to worry about missing these transmissions. If you have programmed talkgroup 33264 into Scan List memory, for example, and there is an emergency call within the group, you will hear it on 33264. The only time you may wish to turn Status Bits OFF is if you're trying to figure out the proper Fleet Map of a Type I trunking system. 1. Press and hold TRUNK for 1.5 seconds and select the bank you want to change. 2.
PL2 (plan 2): If the last three digits of frequencies are less than 860.000 and end in one of the following three digits (125, 375, 625, or 875) and if ANY other frequencies end in (000, 250, 500, or 750) use Plan 2. PL3 (plan 3): If the last three digits of ALL the frequencies in use end in one of the following three digits (000, 250, 500, or 750) use Plan 3. PL4 (plan 4): If the last three digits of frequencies are less than 866.
the Control Channel instead of waiting for the Disconnect Tone. Only in rare instances will you need to adjust the default settings. The condition to return to Control Channels depends on whether the signal is present or not. 1. Press and hold TRUNK for 1.5 seconds and select the bank you want to change. 2. Use the ▲ or ▼ key to select (Motorola TYPE2 800MHz), (Motorola Type2 VHF) or (Motorola Type2 UHF), then press E. 3. Use the ▲ or ▼ key to select , then press E. 4.
Scanner software. After connecting the scanner to a PC, turn the scanner ON. To use the Remote (PC Control) mode, you must install Radio Shack’s 20-426 Scanner software and use as directed. Make sure that your scanner is connected to the serial port of the PC using the RS232C straight cable. Start Remote Mode and Change Transfer Speed: 1. Press and hold RMT for 2 seconds to activate the Remote mode. 2. Select the transfer speed except for , then press E and the scanner will start Remote mode.
Start Remote Mode and Change Transfer Speed: 1. Press and hold RMT for 2 seconds to activate the Remote mode. 2. Select the transfer speed except for , then press E and the scanner will start Remote mode. A unique feature of the 20-426 is that all the front panel keys on the radio remain operational in Remote mode. For information on purchasing 20-426 Scanner software to program and control your 20-426, you can contact the following: Radio Shack Parts Department (800) 554-3988 (Hours are from 8:00 a.m.
in Remote mode. For information on purchasing 20-426 Scanner software to program and control your 20-426, you can contact the following: Radio Shack Parts Department (800) 554-3988 (Hours are from 8:00 a.m. to 5:00 p.m. Central Time Monday through Friday) scanner.Radio Shack.
transfer. This one must be set up as the "First Unit", and the other must be set as the "Clone Unit". 3. On the scanner that is the "Clone Unit", use the ▲ or ▼ key to select , then press HOLD/RESUME. 4. On the scanner that is the "First Unit", use the ▲ or ▼ key to select , then press HOLD/RESUME. Care and Maintenance General Use . Turn the scanner OFF before disconnecting the power. . Always write down the programmed frequencies in the event of memory loss. .
scanning. Troubleshooting If your 20-426 is not performing properly, try the following steps. Problem Suggestion 1. Make sure you are scanning in Highway Mode. 2. Check antenna connections. 3. Conditions to activate the alarm are variable and depend upon the timing of the dispatcher transmissions and proximity of patrol car to your vehicle. Also, terrain and other factors may be involved. 4. Officer has the ability to turn off the mobile extender when off-duty, or when going to court, etc.
Scanner won't work. Improper reception. Scan won't stop. Scan won't start. Weather Scan won't work. Radio transmissions (conversations) are cutting in and out in Highway mode. If you experience difficulty while in TrunkTracker mode, try the following steps. If you still cannot get satisfactory results while using your scanner or if you want additional information, please call or write the Radio Shack Parts and Service Division.
Scanner won't stop during Scan List mode. Scanner will not acquire data channel. Missing replies to conversations. Channel Activity Indicators are flashing but no sound is heard. Scanner not tracking an EDACS system properly. Specifications Certified in accordance with FCC Rules and Regulations Part 15, Subpart C, as of date of manufacture. Channel: 1000 Banks: 10 (50 channels each) Service Bands: 9 preprogrammed search bands (including the NOAA and Canada Weather Service band) Frequency Range: 25.0-28.
Window Mount Antenna (included) Antenna Jack: BNC type External Jacks: External Speaker (EXT.SP.) (3.5 mm) DC 12 V Power Jack, (center is positive) Remote Control (REMOTE) Jack (DB-9) Size: 7.06 in. (W) x 6.10 in. (D) x 2.44 in. (H) 176.5mm (W) x 152.5mm (D) x 50.8mm (H) Weight: 1.1 kg (2 lbs 7 oz.) Features and specifications are all subject to change without notice. Limited Warranty RadioShack Corporation Fort Worth, Texas 76102 Cat. No.
WX alert (1050 Hz) : WXA During an alert, press any key, then an alert stops. If you do not press any key, then the scanner continues sounding the alert beep. Although alert beep (warning beep, watch beep ,advisory beep) is sounded at short intervals for 5 minutes, after that, the emergency beep will be sounded beep at intervals of 10 sec. Programming FIPS code To specify a county, SAME uses a standard established by the US Census bureau, called FIPS.
To set to alert all FIPS, press [▲ ] or [▼ ] to move “ALLFＩPS”. And press [E]. Then go to WX hold mode. To set to alert only the area you have programmed, press [▲ ] or [▼ ] to move “F1” to “F15”. And press [E]. Then go to WX hold with WX alert. Press [HOLD] to exit this mode. SIGNAL STALKER Signal Stalker Your scanner's Signal Stalker feature lets you set the scanner so it detects then displays the frequency of a nearby strong radio transmission.
transmissions than others. It might not correctly display frequency information for transmitters using a highly directive antenna (such as an amateur radio beam antenna), if there are many transmitters operating at the same time in the same area, or if the transmitter is a broadcast television station. Setting the Signal Stalker Options Press FUNC then press and hold for 2 seconds. One of the following signal stalker options appears. S-S.bnd: Lets you select the signal stalker band. S-S.
Press E while S-S.Alt appears. One of the following alert options appears. ALt bEEP: The scanner beeps when a signal stalker signal is detected. ALt Light: The scanner flashes the display backlight when a signal stalker signal is detected. ALt bP-Lt: The scanner flashes the display backlight and beeps when a signal stalker signal is detected. ALt OFF: The scanner does not provide any alert when a signal stalker signal is detected.
disappears. SKYWARN Skywarn The Skywarn function lets you jump directly to the last channel in memory (Channel 200) from any mode by pressing FUNC + . The scanner goes into scan hold mode and starts receiving transmissions in the last channel. If no frequency is programmed in the last channel, No Prg appears and the scanner sounds an error tone. About Skywarn Skywarn is an organized group of trained weather observers. A Skywarn group exists in virtually every US county with a significant population.
Listen to NOAA: for weather alerts and warnings, watch box notices, and weather forecasts Listen to Skywarn: to hear trained observers in your vicinity call in official reports to a "net control" station who relays those reports to NOAA and other emergency agencies. If you tune to a Skywarn frequency when the Skywarn net is not active, you may hear nothing or you may hear amateur radio operators talking on a local repeater system.
error while receiving data, End, d-Err, and its frame number appear. If the scanner received a communication error while receiving data, C-Err indicates the packet number where the error occurred. If the scanner received a checksum error while receiving data, S-Err indicates the packet number where the error occurred. If the scanner received a length field error while receiving data, L-Err indicates the packet number where the error occurred.
The FCC Wants You to Know This e q uip m e nt has b e e n te s te d and fo und to co m p ly with the lim its fo r a Clas s B d igital d e vice , purs uant to Part 15 o f the FCC Rules. The s e lim its are d e s igne d to p ro vid e re as o nab le p ro te ctio n agains t harm ful inte rfe re nce in a re s id e ntial ins tallatio n.
