PRO-2042 1000-Channel Programmable Home Scanner (200-0464) Special Features Faxback Doc. # 31532 DELAY Many agencies use a two-way radio system that might have a pause of several seconds between a query and a reply. Your scanner's delay feature lets it wait for 2 seconds after each transmission on a channel or frequency while scanning or searching. To program a 2-second delay for a channel while scanning, manually select the channel and press DELAY until DELAY appears. When your scanner stops on the channel, it waits for 2 seconds after each transmission on that channel before it resumes scanning. To program a 2-second delay for any active frequency while searching, press DELAY until DELAY appears. When your scanner stops on a transmission, it waits for 2 seconds after each transmission on that frequency before it resumes searching. USING THE ATT switch To reduce interference or noise caused by signals from a strong local broadcaster, you can reduce the scanner's sensitivity to signals by setting the ATT (attenuate) switch on the back of the scanner. Switch ATT to 10 dB to reduce the scanner's sensitivity, or to 0 dB to increase it. NOTE: If you switch ATT to 10 dB, your scanner might not receive weak signals. USING THE SOUND SQUELCH SWITCH You can have the scanner skip frequencies that broadcast only a carrier signal without an accompanying modulated (data or voice) signal by setting the SOUND SQUELCH SWITCH on the front of the scanner. When SOUND SQUELCH is turned on, the scanner continues scanning if it does not detect a modulated signal on a frequency within 0.5 seconds. NOTES: This feature works only while the scanner is scanning or searching, or when monitoring the priority channel. The sound squelch feature might not work properly if the monitored frequency contains a transmission with a low modulated signal. To set sound squelch, press SOUND SQUELCH until the scanner beeps and the SOUND SQUELCH indicator turns on. To turn off sound squelch, press SOUND SQUELCH again. NOTE: If the scanner receives a frequency that broadcasts both a carrier and a modulated signal, it stops scanning and monitors the frequency. If the modulated signal stops being broadcast on the frequency, the scanner stays on the frequency for 5 seconds, then resumes scanning. If the carrier signal stops being broadcast on the frequency, the scanner resumes scanning immediately, unless DELAY is set. LOCKING OUT CHANNELS AND FREQUENCIES You can scan existing channels or search frequencies faster by locking out channels or frequencies that have a continuous transmission, such as a weather channel. To lock out a channel while scanning, press L/OUT when the scanner stops on the channel. To lock out a channel manually, manually select the channel and press L/OUT until LOCK-OUT appears on the display. To remove the lockout from a channel, manually select the channel and press L/OUT until LOCK-OUT disappears from the display. NOTES: You can delete the frequencies stored in locked-out channels within a bank. See "Deleting Frequencies from All Locked-Out Channels Within a Bank". You can still manually select locked-out channels. You cannot lock out all channels. There must be at least one active channel in each bank. To lock out a frequency while searching, press L/OUT when the scanner displays the desired frequency. To lock out a frequency manually, manually select the frequency and press L/OUT until LOCK-OUT appears on the display. To lock out a frequency during a limit or direct search, press L/OUT when the scanner stops on the frequency. The scanner locks out the frequency, then continues searching. NOTES: If you press DIRECT, LIMIT, or TUNE, then press L/OUT, the scanner will not lock out a channel or frequency. Choose another function, then try pressing L/OUT again. The scanner does not store locked-out frequencies during a limit or direct search. You can lock out as many as 200 frequencies. If you try to lock out more than 200 frequencies, L-FULL appears on the display. Follow these steps to remove the lockout from a frequency. 1. Press TUNE. 2. Repeatedly press L/O RVW until the frequency you want to remove the lockout from is displayed. 3. Press L/OUT. LOCK-OUT disappears from the display. Reviewing Locked-Out Channels and Frequencies You can review the channels or frequencies you locked out. To review the channels you locked out, press MANUAL, then repeatedly press L/O RVW. As you press L/O RVW, the scanner displays all locked-out channels. To review the frequencies you locked out, press TUNE, then press L/O RVW. The scanner sounds two short beeps, then displays L-r. As you rotate the TUNING knob, the scanner displays all locked-out frequencies. To return to the tune mode, press L/O RVW again. NOTE: As you review locked-out frequencies, the scanner beeps when the display changes from the highest locked-out frequency to the lowest locked-out frequency. Deleting All Locked-Out Frequencies You can delete all locked-out frequencies at one time. 1. Press TUNE. TUNE appears on the display. 2. Press L/O RVW. 3. Press and hold down CLEAR, then press LOCK-OUT. PRIORITY With the priority feature, you can scan through programmed channels and still not miss an important or interesting call on a specific channel. You can program one stored channel as a priority channel. NOTE: Before you first program your scanner, it automatically designates Channel 1 in Bank 1 as the priority channel. Follow these steps to program a channel as the priority channel. 1. Press PROGRAM. 2. Use the number keys to enter the channel number you want to program as the priority channel, then press PRIORITY. P appears on the display to the left of the channel number. To turn on the priority feature, press PRIORITY during scanning. The scanner checks the priority channel every 2 seconds. It stays on the channel if there is activity, and PRIORITY appears. To turn off the priority feature, press PRIORITY. PRIORITY disappears from the display. MANUALLY SELECTING A CHANNEL You can continuously monitor a specific channel without scanning. This is useful if you hear an emergency broadcast on a channel and do not want to miss any details (even though there might be periods of silence) or if you want to monitor a locked-out channel. Follow these steps to manually select a channel. 1. Press MANUAL. 2. Use the number keys to enter the channel number you want to hear, then press MANUAL. NOTES: If your scanner is scanning and stops at the channel you want, press MANUAL once. If you repeatedly press MANUAL, the scanner steps through the channels. To change the step direction, press either /\ or \/ before you press MANUAL. LISTENING TO THE WEATHER BAND The FCC (Federal Communications Commission) has allocated 11 channels for use by the National Oceanic and Atmospheric Administration (NOAA). NOAA broadcasts your local forecast and regional weather information on one or more of these channels. We have preprogrammed your scanner with ten of the U.S. frequencies available to NOAA. To scan the preprogrammed weather channels, repeatedly press WEATHER, or press WEATHER then turn TUNING. NOTE: For a list of all 11 national weather frequencies, see "National Weather Frequencies" on Faxback Doc. # 31535. BAND MODE AND FREQUENCY STEP The scanner scans in the following band modes: AM (amplitude modulation) - used in aircraft bands and Citizen's Band. NFM (narrow band frequency modulation) - used in action bands such as police, fire, ambulance, Amateur Radio, etc. WFM (wide band frequency modulation) - used in commercial FM broadcasts and television sound. This table shows the preset band modes and frequency steps you scanner uses for each frequency range. Frequency Range (MHz) Band Mode Frequency Step (kHz) 25.000 - 29.995 AM 5 30.000 - 87.495 NFM 5 87.500 - 107.950 WFM 50 108.000 - 136.9875 AM 12.5 137.000 - 224.995 NFM 5 225.000 - 400.000 AM 12.5 400.0125 - 520.000 NFM 12.5 760.000 - 1300.000 NFM 12.5 If you scan some of the 225-400 MHz and TV audio bands, you might have to manually change the band mode or frequency step. Changing/Resetting the Band Mode To change the displayed band mode while a frequency appears, press MODE until the desired band mode appears. The band mode flashes anytime it is different from the preset band mode. To reset the displayed band mode to its preset, press RESET. NOTES: You cannot change the band mode unless it appears on the display. Keep in mind that improperly changing the band mode can cause poor reception. For example, the sound is distorted when you listen to an FM broadcast or TV audio in the NFM mode or to a police broadcast in the WFM mode. Changing/Resetting the Frequency Step The scanner searches at a preset frequency step (5, 12.5 or 50 kHz) for each frequency range. However, if you search some of the 225-400 MHz and TV audio bands, you might have to manually change the frequency step. When the scanner displays a frequency range, it also displays the frequency step. You can change the displayed frequency step while searching for frequencies or automatically storing frequencies. To change the displayed frequency step, press STEP until the desired step appears. (The frequency step flashes anytime it is different from the preset frequency step l.) To change a displayed frequency step back to its preset value, press RESET. NOTES: You cannot change the frequency step unless it appears on the display. Keep in mind that improperly changing the frequency step can cause you to miss stations while scanning. For example, if you use a 50 kHz frequency step to search for broadcasts, and the band mode is set to NFM, you might miss frequencies between the 50 kHz steps. (EB 3/25/96)