AOR AR5000 Wideband Reciever Instructions
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AR5000 OPERATING MANUAL PAGE 41 8-9 Cyber Scan in SCAN mode A special facility has been provided to speed up the scanning process (which is capable of scanning about 25 memory channels per second), typically the speed increases to about 45 channels per second. When Cyber Scan has been selected the frequency and text are blanked out from the display while scanning, the words “CYBER SCAN” are displayed in their place. While scanning the legend “SCAN” flashes to indicate that SCAN is in progress. When a busy channel is located, the FREQUENCY or TEXT will be displayed (taking the place of the Cyber Scan legend), the “SCAN” legend stops flashing when a busy channel has been located. To enable Cyber Scan press then press and hold the key for more than one second... a bleep will then sound and the “FUNC” legend will be removed from the LCD to confirm operation. This key sequence acts as a toggle to switch Cyber Scan on and off. Note: If no text has been saved in memory and TEXT mode has been selected rather than FREQUENCY, the display will be void of information when Cyber Scan locates a busy channel !! (9) Additional SCAN facilities It is possible to alter the sequence of scanning events when in SCAN mode depending upon the SCAN CONFIGURATION as defined in the BANK LINK / SETUP sub menu. As with BANK LINK, 10 PROFILES of the additional facilities may be used along side BANK LINK. There are 5 parameters (in addition to BANK LINK and PASS) which may be changed to suit your preferences and requirements. The list of scanning defaults is shown below: Scan type Default Comment PAUSE OFF OFF and 1 ~ 60 seconds DELAY2.0s OFF and 0.1 ~ 9.9 seconds L-SQ OFF OFF and 1 ~ 255 VOICE OFF OFF and 1 ~ 255 (*) MODE ALL ALL/FM/AM/LSB/USB/CW It is possible to mix combinations of all five parameters. To access the additional facilities of BANK LINK / SETUP press . Initially the BANK LINK menu is displayed, the and keys allow selection of the additional facilities operating as a carousel. The MAIN DIAL and SUB DIAL may be rotated to change values on each menu. The key selects OFF (and sometimes default such as 2.0s as in the DELAY menu). When you are happy with the changes press to accept the entry and the AR5000 will revert to SCAN, SEARCH or VFO mode depending upon which was previously in use. Note: Make small changes and assess the effect as incorrect setting may degrade the effectiveness of SCAN capabilities. If things appear to go wrong, return the settings to their defaults as listed earlier in this section. In extreme cases, reset the microprocessor (by switching the receiver on while holding the key), this action will revert the scan options back to defaults (by deleting all bank link / setup programming). 9-1 SCAN - PAUSE The scan PAUSE parameter determines how long the receiver will remain on an active channel before resuming scanning channels even if the channel is still busy. This is useful if you wish to gain a picture of what is happening on the memory channels without the AR5000 being tied to a busy channel for long periods (such as active amateur band repeaters etc). PAUSE scan saves you having to manually intervene to force the scan to continue or use channel PASS (lockout). The limits are OFF and 01 to 60 seconds (default OFF). Press to access the BANK LINK menu. Use the keys to locate the “PAUSE OFF” selection. PAUSE OFF
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PAGE 42 AR5000 OPERATING MANUAL 9-2 SCAN - DELAY The scan DELAY parameter affects the time the AR5000 will remain on an active channel in scan mode once the received signal has disappeared and the squelch closed. This is particularly useful for customising how long the receiver will wait for a reply before continuing to scan. For example, when communications are passed back and forth between a control tower / aircraft which may take a few seconds. If you are scanning duplex channels then a small delay or no delay at all may be preferable. The limits are OFF and 0.1 to 9.9 seconds (default 2.0 seconds). Press to access the BANK LINK menu. Use the keys to locate the “DELAY 2.0” selection. PAUSE OFF DELAY 2.0
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AR5000 OPERATING MANUAL PAGE 43 selection process. In fact the key may be used as a toggle between OFF and the new setting. The legend “*” positioned to the right of the word “VOICE” indicates that the current audio will open the squelch, use the SUB DIAL to increase the value until the “*” legend disappears, you can then be sure that the scan voice setting will ignore and skip over the current frequency. While in memory recall or scan mode, the LCD legend “VCS” for voice squelch is displayed toward the top right hand side of the LCD to indicate that voice squelch is in operation. To accept the changes to scan VOICE SQUELCH press to return to normal display (SCAN, SEARCH or VFO mode). Alternatively you may move to the next option (MODE SCAN) by pressing the key. 9-5 SCAN - MODE (receive mode AM, FM etc) The scan MODE parameter determines whether ALL specified memory channels will be scanned or only those of a certain receive mode. This can be very useful if for example you have a mixture of VHF AM civil airband frequencies in a memory bank along with VHF NFM marine. Rather than having to scan ALL channels or PASS (lock out) certain channels, a SPECIFIC receive mode ONLY can be quickly selected and scanned. The options are: ALL, FM, AM, LSB, USB & CW (default ALL). Setting the option to “ALL” will cause the scan process to stop on all active channels regardless of mode. Press to access the BANK LINK menu. Use the keys to locate the “MODE ALL” selection. PAUSE OFF DELAY 2.0 L-SQ OFF VOICE OFF MODE ALL
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PAGE 44 AR5000 OPERATING MANUAL 10-2 SELECT SCAN - while in SCAN mode (tagging and un-tagging) While the receiver is scanning, the AR5000 will stop on active frequencies and you will soon realise that some are interesting and some uninteresting. To build up your select scan list of interesting channels, start to tag the interesting channels while the scan sequence pauses on active memory channels by pressing The legend “S” will be displayed next to the bank number of the memory channel to confirm selection. Each time the sequence is keyed, the SELECT SCAN status “S” is toggled so that the channel may be tagged (chosen / registered) and un-tagged at will. Tagging a memory for SELECT SCAN will not force the scan to continue nor affect the way in which the memory channel or SCAN mode operates. When the signal disappears normal SCAN mode is resumed. 10-3 SELECT SCAN while in MEMORY RECALL mode (tagging and un-tagging) SELECT SCAN channels may be tagged or un-tagged while in memory recall mode by first selecting the desired memory channel then keying If not already in memory recall mode, press . The legends “M” and “BANK” are displayed on the LCD to confirm selection of memory recall. The AR5000 will display a memory channel, mode, frequency (or TEXT if text mode is selected). You may now select and tag interesting memory channels to add to the SELECT SCAN list from any of the ten memory banks. If the desired memory channel is not immediately displayed it may be RECALLED by keying in the required location. To recall memory channel “100” type there is no need to press enter. Alternatively the MAIN DIAL, or keys may be used to review, hunt for and select memory channelsto be tagged or un-tagged, the SUB DIAL is used to change bank number. When the memory channel has been tagged using the sequence , the legend “S” will be displayed next to the bank number of the chosen memory channel to confirm selection. Each time the sequence is keyed, the SELECT SCAN status “S” is toggled so that the channel may be tagged (chosen / registered) and un-tagged at will. 10-4 Starting SELECT SCAN To initiate SELECT SCAN once a selection of channels has been made press SELECT SCAN will scan only the memory channels which have been chosen ( tagged) and will adopt the current PARAMETERS which have been saved in the currently selected BANK LINK configuration. In the default state, the scan will remain on an active channel then wait a further two seconds after the signal has disappeared before resuming SCAN. If you have altered the BANK LINK / SETUP parameters (section 9 of this manual), the new parameters will be employed. If no memory channels have been tagged for SELECT SCAN, the error bleep will sound (if the beep tone has been enabled). 10-5 Deleting all SELECT SCAN channels in one go It is convenient to delete ALL the SELECT SCAN channels in a single operation. This makes the list ready for a fresh start, perhaps using a totally different selection of SELECT SCAN channels. While this may be accomplished by untagging each and every SCAN SELECT channel individually, a faster method is available especially if you have previously selected all 100 select scan channels. Access the DELETE menu by pressing then press and hold the key for more than one second. Use the keys until “DEL SEL-CH” appears on the LCD. DEL MEM-CH DEL SEL-CH
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AR5000 OPERATING MANUAL PAGE 45 The right of the LCD will display the legend “* *” if select scan channels exist and “- -” if there are none to delete. To delete all select scan channels (un-tag them all) press , the legend will change to “- -” to confirm operation. The memory channels themselves will not be deleted, only the select scan tags will be removed . Press to return to VFO, SCAN or SEARCH, whichever was previously used. (11) Priority operation The PRIORITY feature enables you to carry on scanning, searching or monitoring while the AR5000 checks a selected frequency for activity (taken from one of the 1000 memory channels - default 000 every 5 seconds). The priority checking is accomplished by momentarily tuning the receive circuit to the priority frequency to see if it is active. If activity is found, the AR5000 will remain on the active frequency until the signal disappears. If no activity is detected, the receiver returns to the VFO frequency, scan channel or search bank from where it originated. The priority facility has a large number of applications and is particularly useful for keeping an eye on a distress frequency while scanning or searching another frequency band. Note: Depending upon the frequency and mode stored as priority, an audible click may be heard when the priority facility is in operation. This is quite normal and is caused by the internal switching of circuitry necessary to accomplish the frequency change (as two frequencies cannot simultaneously be monitored). The priority mode is automatically suspended during entry of frequencies via the numeric keypad, this prevents the AR5000 from changing frequency while you are busy programming. 11-1 Engaging PRIORITY channel Once engaged, the default channel used for PRIORITY is “000” and the frequency is checked for activity every 5 seconds. First ensure that there is data stored in memory channel “000”. To engage the priority facility press , this may be carried out while in SCAN, SEARCH or VFO modes. The legend “PRIO” appears toward the centre of the top line of the LCD to indicate that PRIORITY IS ENGAGED (switched on). Once priority has been activated, the contents of the memory channel used (default 000) may be altered without affecting the data used for PRIORITY operation which is stored separately and assumes an identity of its own irrespective of the data contents of memory 000. When the priority channel becomes active (signal present and squelch open), the legend “Pr” will be displayed on the right of the LCD. The active priority frequency will be monitored until it clears, this will temporarily halt any scan and search process. Should you subsequently wish to alter the priority data, you will have to use the PRIORITY SETUP menu. To cancel priority operation press , the legend “PRIO” will be removed from the top line of the LCD to confirm de-selection. 11-2 Changing PRIORITY channel parameters The default channel used for PRIORITY is “000” and the frequency copied from this channel is checked for activity every 5 seconds. You may select a different memory channel from which the priority data will be taken or may vary the sampling time for priority activity checking. This is accomplished by using the PRIORITY SETUP menu accessed by pressing . The flashing legend “PRIO” appears on the top line of the LCD to confirm selection. The legend “Pr” also alternates with the bank/channel number on the right of the LCD inviting a new memory location to be chosen. Use the MAIN DIAL, SUB DIAL or enter a three digit memory location via the numeric keypad. To transfer the data to PRIORITY press . Alternatively press the keys to select the priority sampling interval (how often priority is checked for activity).
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PAGE 46 AR5000 OPERATING MANUAL When the interval menu is selected the legend “P-INTER 05” is displayed (with 05 being the default of 5 seconds). This numeric value in seconds determines how long the AR5000 will wait between checking cycles before re-sampling the priority frequency for activity (once the priority facility has been activated). The default is “05” (5 seconds) and the acceptable range is 01 ~ 60 seconds. Rotate the MAIN DIAL or SUB DIAL until the desired value is displayed. Once you are happy with the new selection press to accept the changes. The display will return to SCAN, SEARCH, or VFO mode from wherever it originated. Note: If you should attempt to select a blank memory channel, a low pitch beep error will sound when you press (if the beep is on) and the display will return to SEARCH, SCAN or VFO mode, from wherever it originated. (12) SEARCH The AR5000 is equipped with various SEARCH modes whereby an upper and lower frequency limit may be defined and the AR5000 instructed to look for activity on all frequencies in predetermined step size in an upward or downward direction. The mode and channel step will change automatically when set to the default of AUTOMODE but data may be specified specifically if preferred. It is important that you do not confuse SEARCH and SCAN modes. SEARCH mode automatically TUNES THE RECEIVER THROUGH ALL FREQUENCIES between two specified frequency limits looking for active frequencies. SCAN mode is uses SPECIFIC SPOT FREQUENCIES which have been stored into memory. The great advantage of SEARCH over manual tuning is that it is so fast! There are many different facilities available for SEARCH mode which will be explained in this section. The search instructions may be programmed into banks. There are a total of 20 programmable search banks so that data entry and recall is simple and efficient. Continuously active or busy frequencies such as amateur band repeaters may be PASSED (skipped) and active frequencies stored into memory. There is even an AUTO-STORE facility where active channels are automatically written to memory bank “0”. When the AR5000 stops on a genuine active frequency during search, the key may be pressed to transfer the displayed frequency to VFO-D where it may be monitored for long periods of time or tuned.Pressing for more than 1 second will initiate the process of storing the frequency into a memory channel. Limitations of SEARCH mode SEARCH mode is extremely effective for AM & NFM use in the VHF and UHF bands. Searching the short wave bands is usually ineffective due to the relatively high background noise especially when propagation conditions are good and bands open. Searching using the modes of USB, LSB and CW will produce mixed results depending upon frequency band and whether any strong signals are encountered which will affect the receiver’s AGC (Automatic Gain Control) circuitry. Usually, short wave band and SSB monitoring is carried out with the squelch control open (fully anticlockwise) and manual tuning by rotating the MAIN DIAL - not by scanning or searching. Searching using the mode of WFM may not be possible in certain frequency bands due to the level of background noise and adjacent channel activity. Fundamentally there are three types of search: Manual search (VFO search) - VFO-A, VFO-B Simple search (VFO search) - VFO-C, VFO-D, VFO-E Program search (bank search) - Search banks 00 ~ 19 12-1 Manual SEARCH between two VFO frequencies (VA, VB) The simplest form of controlled SEARCH is achieved by programming different frequencies into VFO-A and VFO-B. 1 Press the key a few times until the legend “VA” is displayed on the lower right corner of the LCD. Press and hold the key for more than one second so that the “AUTO” legend is displayed to ensure the AR5000 is in AUTOMODE. In this example let’s assume that the required search range is 118.000 MHz to 136.000 MHz, the step size, mode etc will be taken care of automatically as AUTOMODE is engaged. While the legend “VA” is displayed on the lower right corner of the LCD (signifying that VFO-A is selected) key in the lower frequency limit of 118.000 MHz
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AR5000 OPERATING MANUAL PAGE 47 2 Select VFO-B. Press the , the legend “VB” is displayed on the lower right corner of the LCD. Press and hold the key for more than one second so that the “AUTO” legend is displayed to ensure the AR5000 is in AUTOMODE (as each VFO can retain different mode information). Key the upper frequency limit into VFO-B. In this example 136.000 MHz (the step size, mode etc will be taken care of automatically as AUTOMODE is engaged). 3 To initiate manual frequency search (while “VA” or “VB” are displayed) press and hold the key for more than one second (the or keys may also be held for more than one second to initiate manual search). The squelch MUST be closed for the search process to operate. The manual search process will start from the frequency in VFO-A and search until it gets to frequency of VFO-B then loop back to the frequency of VFO-A and start again. The legend “SR” (SeaRch) will be added above the VFO indication to show that SEARCH is in progress. If the mode (and other receive parameters) are different in VFO-A and VFO-B, the mode data will be taken from the currently displayed VFO. The MAIN DIAL, SUB DIAL, or keys may be used to reverse the direction of search and force the search process onward when stopped on a busy frequency. The process will halt when a busy frequency is located, (at default will wait for two seconds after the transmission clears) then resume searching again when the frequency is clear.Cancelling manual search Manual search may be cancelled by pressing . The display will either revert to VFO-A or VFO-B depending upon which was being used when manual search was selected. As a result VFO-A will display the lower frequency and VFO-B the upper. This can also be useful if you wish to quickly change the band edges of manual search and restart the process. Accept the frequency from manual search mode If you wish to stop the manual search and monitor an interesting busy frequency, it is necessary to transfer the frequency to VFO-D where it may be monitored without the search process resuming as the frequency clears. To transfer the frequency press while the frequency is busy. The frequency will be transferred to VFO-D and the legend “VD” will be displayed on the lower right of the LCD to confirm operation. Saving busy frequencies into memory It is possible to save interesting frequencies into memory. While stopped on an active frequency press and hold the key for more than one second, the MEMORY INPUT menu will appear. Select the desired memory location for storage (refer to section 7-1 of this manual if you are unsure of the required key strokes). Press the key to accept input, the manual search process will resume. 12-2 Simple search (VC, VD, VE) The quickest form of SEARCH is achieved by keying a start frequency into VFO-C or VFO-D or VFO-E then pressing the key for more than one second. 1 Press the key a few times until the legend “VC” (or “VD” or “VE”) is displayed on the lower right corner of the LCD. Press and hold the key for more than one second so the “AUTO” legend is displayed to ensure the AR5000 is in AUTOMODE. In this example let’s assume that the required starting point is 145.2 MHz, the step size, mode etc will be taken care of automatically as AUTOMODE is engaged. Key the lower start frequency.
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PAGE 48 AR5000 OPERATING MANUAL 2 To initiate simple frequency search (while “VC” or “VD” or “VE” is displayed) press and hold the key for more than one second (the or keys may also be held for more than one second to initiate simple search). The squelch MUST be closed for the search process to operate. The simple search process will start from the displayed frequency, the legend “SR” (SeaRch) will be added above the VFO indication to show that SEARCH is in progress. The MAIN DIAL, SUB DIAL, or keys may be used to reverse the direction of search and force the search process onward when stopped on a busy frequency. The process will halt when a busy frequency is located, (at default the delay is two seconds after the transmission clears) then resume searching again when the frequency is clear. When simple search reaches the top frequency range of the receiver (2600 MHz), the search process will reverse in direction. Cancelling simple search Simple search may be cancelled by pressing . The display will either revert to VFO-C or VFO-D or VFO-E depending upon which was being used when simple search was selected. The VFO will display the original start frequency. Accept the frequency from manual search mode If you wish to stop the simple search and monitor an interesting busy frequency, it is necessary to transfer the frequency to VFO-D where it may be monitored without the search process resuming as the frequency clears. To transfer the frequency press while busy. The frequency will be transferred to VFO-D and the legend “VD” displayed on the lower right of the LCD to confirm operation. Saving busy frequencies into memory It is possible to save interesting frequencies into memory. While stopped on an active frequency press and hold the key for more than one second, the MEMORY INPUT menu will appear. Select the desired memory location for storage (refer to section 7-1 of this manual if you are unsure of the required key strokes). Press the key to accept input, the manual search process will resume. 12-3 Optimising VFO search parameters The key sequence accesses a menu where the DELAY, L-SQ level squelch and VOICE options may be set up for VFO search (MANUAL and SIMPLE search). The legend “V-” indicates that the VFO search setup menu has been selected. Search Comment DELAY 2.0s OFF and 0.1 ~ 9.9 seconds L-SQ OFF OFF and 1 ~ 255 VOICE OFF OFF and 1 ~ 255 (*) It is possible to mix combinations of all three parameters. VFO SEARCH - DELAY The DELAY parameter affects the time the AR5000 will remain on an active frequency in VFO search once the received signal has disappeared and the squelch closed. This is particularly useful for customising how long the receiver will wait for a reply before continuing to search. For example, when communications are passed back and forth between a control tower / aircraft which may take a few seconds. If you are scanning duplex channels then a small delay or no delay at all may be preferable. The limits are OFF and 0.1 to 9.9 seconds (default 2.0 seconds). Key to access the menu. DELAY 2.0
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AR5000 OPERATING MANUAL PAGE 49 VFO SEARCH - LEVEL SQUELCH The LEVEL SQUELCH parameter causes the receiver to check the signal strength of active frequencies and to only stop when the signal strength is above a predetermined level which is programmable in 256 steps. The limits are OFF and 1 to 255 (default OFF). Note: It is possible that false signal levels may upset the operation of LEVEL SQUELCH due to local noise or the close proximity of computer systems... the lower level settings may not be usable when high noise is present. A value of 1 instructs the AR5000 to react to very weak signal while a value of 255 instructs the AR5000 to react ONLY to strong signals. Experimentation will be necessary with different types of signal to find the best setting for specific requirements. Key to access the menu. DELAY 2.0 L-SQ OFF
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PAGE 50 AR5000 OPERATING MANUAL An example of possible programming is as follows (in these examples the mode, step etc are taken from the AUTOMODE bandplan data): 10 118.000 to 137.000 MHzCIV AIR 11 225.000 to 410.000 MHzMIL AIR 12 410.000 to 425.000 MHzUSAF 13 156.000 to 163.000 MHzMARINE 14 88.000 to 118.000 MHzBAND 2 15 145.200 to 145.775 MHz2M HAM 16 433.000 to 433.600 MHz70C HAM 17 1297.000 to 1298.000 MHz23C HAM 18 71.000 to 87.000 MHzLO PMR 19 163.400 to 225.000 MHzVHF PMR 12-5 Starting program search Assuming that the AR5000 is pre-programmed with similar data to that shown, initiate PROGRAM SEARCH by pressing . The legends “BANK” and “SR” appear on the right of the LCD to confirm selection. To select a specific search bank rotate the SUB DIAL or key in the two digit bank identifier via the numeric keypad. The bank number is displayed underneath the legend “BANK”. The numeric keypad may also be used while in search mode to change bank. For example, to search bank “15” press while in search mode, there is no need to press enter. The lowest frequency in the bank will first appear on the LCD and will change in an upward direction. Use the keys or MAIN DIAL to reverse the direction of search. Should the receiver stop on an unwanted active frequency, press the or keys or rotate the MAIN DIAL to force the search process to continue. Note: Bank numbers “00” and “01” require preceding zeros. Banks “02” to “09” just need the last digit keyed, the preceding “0” is automatically added by the AR5000 microprocessor. Banks “10” to “19” require the entry of both (two) digits. Example: To select bank 0 (00) press To select bank 1 (01) press To select bank 5 (05) press To select bank 9 (09) press To select bank 10 press To select bank 19 press The key has the effect of a TEN key, i.e. bank 13 may also be selected as in a similar way to the action of some TV & video remote controls. 12-6 Cancelling, re-starting program search saving active frequencies It is possible to cancel program search, resume, save frequency to VFO where it may be tuned, save frequencies to memory and more... Cancelling search To cancel program search press , the display will return to whichever VFO was last used (VA, VB, VC, VD, VE). If you resume program search (by pressing ), the process will continue from the frequency in use when cancelled. Restarting search If you resume program search by pressing , the process will continue from the frequency in use when cancelled. If however you wish to restart program search process from the original frequency it is necessary to re-select the bank. This can be done by clicking the SUB DIAL one step then back or by keying in the bank number again. Accept the frequency from program search mode If you wish to stop the program search and monitor an interesting busy frequency, it is necessary to transfer the desired frequency to VFO-D where it may be monitored without the search process starting as the frequency clears. To transfer the frequency press while the frequency is busy. The frequency will be transferred to VFO-D and the legend “VD” will be displayed on the lower right of the LCD to confirm operation. Saving busy frequencies into memory It is possible to save interesting frequencies into memory. While stopped on an active frequency press and hold the key for more than one second. The MEMORY INPUT menu will appear. Select the desired memory location for storage (refer to section 7-1 of this manual if you are unsure of the required key strokes). When the is pressed to accept input, the program search process will resume.