3000 Series
Frequency-agile True Diversity UHF Wireless System
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ALERT |
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MODE/SET |
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B |
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UHF SYNTHESIZED DIVERSITY RECEIVER ATW-R3100b
Installation and Operation
3000 Series
Frequency-agile True Diversity UHF Wireless System
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2
3000 Series Installation and Operation
(english)
This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference.
This device complies with INDUSTRY CANADA R.S.S. 210, en conformité avec IC: RSS-210/CNR210. Operation is subject to the following conditions: 1) This device may not cause harmful interference and 2) this device must accept any interference received, including interference which may cause undesired operation.
CAUTION! Electrical shock can result from removal of the receiver cover. Refer servicing to qualified service personnel. No userserviceable parts inside.
•Do not expose batteries to excessive heat such as fire, near heating units or in direct sunlight.
•To prevent fire or shock hazard, do not expose this product to rain or moisture.
•To prevent fire, do not place any naked flame sources (such as lighted candles) on the apparatus.
•To prevent fire, do not cover the ventilation of the apparatus with newspaper, tablecloths, curtains etc.
•Do not expose this apparatus to drips or splashes.
•Do not place any objects filled with liquids, such as vases, on the apparatus.
•Do not install this apparatus in a confined space such as a bookcase or similar unit.
•The apparatus should be located close enough to the AC outlet so that you can easily grasp the AC adapter at any time. In case of emergency, disconnect the AC adapter quickly.
•Always consider environmental issues and follow your local regulations when disposing of batteries. Do not expose batteries to excessive heat.
The circuits inside the receiver and transmitter have been precisely adjusted for optimum performance and compliance with federal regulations. Do not attempt to open the receiver or transmitter. To do so will void the warranty, and may cause improper operation.
Notice to individuals with implanted cardiac pacemakers or AICD devices:
Any source of RF (radio frequency) energy may interfere with normal functioning of the implanted device. All wireless microphones have low-power transmitters (less than 0.05 watts output) which are unlikely to cause difficulty, especially if they are at least a few inches away. However, since a “body-pack” mic transmitter typically is placed against the body, we suggest attaching it at the belt, rather than in a shirt pocket where it may be immediately adjacent to the medical device. Note also that any medical-device disruption will cease when the RF transmitting source is turned off. Please contact your physician or medical-device provider if you have any questions, or experience any problems with the use of this or any other RF equipment.
RF Interference
Please note that wireless frequencies are shared with other radio services. According to Federal Communications Commission regulations, “Wireless microphone operations are unprotected from interference from other licensed operations in the band. If any interference is received by any Government or non Government operation, the wireless microphone must cease operation...” If you
need assistance with operation or frequency selection, please contact your dealer or Audio-Technica.
Thank you for choosing this Audio-Technica 3000 Series Frequency-agile True Diversity UHF Wireless System.
The 3000 Series wireless system is available in six UHF frequency bands to provide flexible performance in a wide variety of regions worldwide:
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Frequency Range |
Number of frequencies |
Band C |
541.500 – 566.375 MHz |
996 |
Band D |
655.500 – 680.375 MHz |
996 |
Band E |
795.500 – 820.000 MHz |
981 |
Band F |
840.125 – 864.900 MHz |
953 |
Band G |
721.500 – 746.375 MHz |
996 |
Band I |
482.000 – 507.000 MHz |
1001 |
The band letter reference at the end of 3000 Series Stock Numbers indicates what band the system/component operates in. For simplicity, model numbers used throughout this manual will reference only the basic model number without the band indications.
Each wireless system includes a receiver and either a body-pack or handheld transmitter. UniPak® body-pack transmitter systems may include an accessory microphone for a particular application. All A-T Wireless Essentials® microphones and cables, available separately, are pre-terminated for use with any Audio-Technica 3000 Series wireless system.
All 3000 Series components feature soft-touch controls for quick, easy access to a formidable range of functions; an LCD information display in each unit provides convenient visual indication of unit settings and operation.
The ATW-R3100b receiver is equipped with automatic frequency scanning for easy setup. It also features true diversity reception. Two antennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providing better sound quality and reducing the possibility of interference and dropouts. Soft-touch controls
provide convenient access to a variety of functions, while a backlit LCD information display provides constant monitoring of system operation, including indication of the transmitter’s battery status. The receiver is half-width for a standard 1U 19" rack mount; rack-mount adapters are included. Two receivers can be mounted side by side, using an optional AT8630 joining-plate kit.
The versatile ATW-T310b UniPak® body-pack transmitter has both lowand high-impedance inputs plus a bias connection, for use with dynamic and electret condenser microphones, as well as Hi-Z instrument pickups. In addition to its programmable functions, the transmitter features a three-position sliding cover to limit access, if desired, to just the Power/Mute button, or to cover all the controls,
as appropriate for the application and user. The ATW-T341b handheld dynamic microphone/transmitter features the same element used in the Artist Elite® AE4100 dynamic handheld microphone created for professional livesound venues. The ATW-T371b handheld condenser microphone/transmitter features the same element used in the Artist Series ATM710 cardioid condenser vocal microphone.
Transmitters in the 3000 Series use two 1.5V AA batteries for economical operation and wide availability. The receiver and both transmitters have “fuel gauge” battery condition indicators with lowbattery warnings.
An advanced Digital Tone Lock™ tone squelch system in the ATW-R3100b receiver opens only when a 3000 Series transmitter
3
3000 Series Installation and Operation
(english)
is detected, reducing the possibility of interference. As a result, 3000 Series transmitters and receivers must be used together and should not be used with components from other Audio-Technica wireless systems, or with those of other manufacturers. Exception: 3000 Series components are compatible with Audio-Technica 1800 Series wireless system components.
Please note that in multiple-system applications there must be a transmitter-receiver combination set to a separate frequency for each input desired (only one transmitter for each receiver). Because the wireless frequencies are within UHF TV frequency bands, only certain operating frequencies may be useable in a particular geographic area.
Receiver Installation
Location
For best operation the receiver should be at least 3 ft. (1 m) above the ground and at least 3 ft. away from a wall or metal surface to minimize reflections. The transmitter should be at least 3 ft. from the receiver, as shown in Figure A. Keep antennas away from noise sources such as digital equipment, motors, automobiles and neon lights, as well as away from large metal objects.
Fig. A
Output Connections
There are two audio outputs on the back panel: balanced and unbalanced. Use shielded audio cable for the connection between the receiver and the mixer. If the input of the mixer is a 1/4" jack, connect a cable from the 1/4" unbalanced audio output on the back of the receiver housing to the mixer. If the input of the mixer is an XLR-type input, connect a cable from the balanced XLR-type audio output on the back panel to the mixer. The two isolated audio outputs permit simultaneous feeds to both unbalanced and balanced inputs. For example, both a guitar amp and a mixer can be driven by the receiver.
Antennas
Attach the included pair of UHF antennas to the antenna input jacks. The antennas are normally positioned in the shape of a “V” (both 45° from vertical) for best reception.
Antennas can be remotely located from the receiver. However, due to signal loss in cables at UHF frequencies, use the lowest-loss RF
cables practical for any cable runs over 8 m/25 feet. RG8-type is a good choice. Use only copper-shielded cable, not CATV-type foil-shielded wire. Audio-Technica offers quality RF cables in four lengths, as well as remote antennas.
Either passive or active antennas may be used. Both input jacks offer switchable +12 V DC output on their center pins to operate
Audio-Technica powered antennas or other in-line RF devices if desired. Up to 60 mA can be drawn from each antenna input jack.
Power Connections
Connect the included AC adapter to the DC power input on the back of the receiver. Loop the small cord from the DC plug over the cord hook above the jack, to keep the plug from being detached by an accidental tug on the cord. Then plug the AC adapter into an AC power outlet.
Operation of the receiver is controlled by the front-panel Power switch.
Receiver Controls and Functions |
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Front Panel Controls and Functions |
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Fig. B |
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-TUNER- |
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ON |
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ALERT |
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A |
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MODE/SET |
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POWER |
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OFF |
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B |
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UHF SYNTHESIZED DIVERSITY RECEIVER ATW-R3100b |
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1.POWER SWITCH: Press Power switch in and the receiver readouts will light.
2.ALERT INDICATOR: The Alert Indicator lights:
(a)When the receiver is in the Function Edit mode,
(b)When no RF signal is received from transmitter,
(c)When only one or two RF signal-strength bars are on,
(d)When the transmitter is in the Mute mode,
(e)When audio modulation level from the transmitter is close to the clipping point (AF +3/+6 bars),
(f)When only one bar of the Battery “fuel gauge” is on (transmitter battery is weak).
3.LCD WINDOW: Backlit screen indicates control settings and operational readings. See Figure D for examples.
4.TUNER OPERATION INDICATOR: Indicates which Tuner (A or B) has the better reception and is in operation. The “B” indicator also lights to serve as confirmation of Mode/Set button entries.
5.UP/DOWN BUTTONS: Press Up or Down arrow buttons, in conjunction with the Mode/Set button, to step through menus, select operating frequency and edit receiver function choices.
6.MODE/SET BUTTON: Use in conjunction with the Up/Down arrow buttons to step through menus, choose operating frequency, initiate automatic scanning and select receiver function options.
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-TUNER- |
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ON |
ALERT |
A |
MODE/SET |
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POWER |
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OFF |
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B |
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UHF SYNTHESIZED DIVERSITY RECEIVER ATW-R3100b
7.MOUNTING ADAPTERS: For mounting the receiver in any standard 19" rack. Attach adapters to the receiver with the screws supplied and remove the four receiver feet. (Use optional AT8630 joiningplate kit to mount two ATW-R3100b receivers side-by-side.)
Rear Panel Controls and Functions
Fig. C 8 |
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10 |
12 |
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15 |
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AF |
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LEVEL |
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ANT. B |
ANT. A |
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GROUND |
AF OUT |
AF OUT |
12~18V |
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GROUND LIFT |
BALANCED |
UNBALANCED |
DC500 mA |
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11 |
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13 |
14 |
8.ANTENNA INPUT JACK: BNC-type antenna connector for Tuner “B.” Attach the antenna directly, or extend it with a low-loss antenna cable.
9.ANTENNA INPUT JACK: Input for Tuner “A.” Attach the antenna directly, or extend it with a low-loss antenna cable.
10.AF LEVEL CONTROL: Adjusts audio output level of both AF Output jacks; maximum output is fully clockwise.
11.GROUND LIFT SWITCH: Disconnects the ground pin of the balanced output jack (12) from ground. Normally, the switch should
4
3000 Series Installation and Operation
(english)
be to the left (ground connected). If hum caused by a ground loop occurs, slide switch to the right (ground lifted).
12.BALANCED AUDIO OUTPUT JACK: XLRM-type connector. A standard 2-conductor shielded cable can be used to connect the receiver output to a balanced microphone-level input on a mixer or integrated amplifier.
13.UNBALANCED AUDIO OUTPUT JACK: 1/4" phone jack. Can be connected to an unbalanced aux-level input of a mixer, guitar amp or tape recorder.
14.POWER INPUT JACK: Connect the DC plug from the included in-line AC adapter.
15.CORD HOOK: Loop the small DC cord around the cord hook to keep the DC plug from pulling out accidentally.
Power On/Off
To turn the receiver on, press in the Power switch. The Alert light and the LCD window will come on (about 1-2 seconds). The operating frequency will be displayed in the window after the power-up sequence. To turn the receiver off, press the Power switch again.
LCD Window
The LCD (Liquid Crystal Display) presents a great deal of setup and operating information clearly and conveniently. (See Figure D for examples.)
Fig. D |
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flashing |
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+6 |
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+3 |
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0 |
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5 |
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-3 |
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4 |
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MHz |
-6 |
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3 |
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-9 |
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2 |
RF BATT |
AF |
-16 |
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1 |
-20 |
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D1. Normal Receiver Operation |
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D2. Menu Mode (Frequency) |
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D3. Edit Mode (Frequency) |
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(Transmitter off) |
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Up/Down Arrow Buttons
In conjunction with the Mode/Set button, the arrow buttons permit moving through the menu of functions, and they offer a choice of settings within each function.
Mode/Set Button
The Mode/Set button shifts the receiver from normal operation into Menu mode and, in conjunction with the Up/Down arrow buttons, permits selection of different features and changing of their stored values in the Edit mode.
How to Make Setting Changes
1.From the normal operating mode, press the Mode/Set button once to enter the Function Menu mode. (Only the frequency will remain in the LCD window, and the receiver’s audio output will be cut off.)
2.Use the Up/Down arrow buttons to reach the desired function.
The value in the LCD window is the current setting for that function.
3.Press the Mode/Set button once again to open the list of available choices for that function. The value will flash, indicating that it can be changed (Edit mode).
4.Use the arrow buttons to go through the available choices, stopping on the desired new choice.
5.(a) To accept and enter the new choice, press and hold the Mode/ Set button until “STORED” appears in the LCD. This changes the value and puts the function of the buttons back at Menu level (step 2 above). (The “B” tuner light will come on while the Mode/Set button is depressed, to confirm its action.)
(b) To “back out” of the Edit mode without making a new choice, simply press the Mode/Set button once. The word “ESCAPE” will appear in the window and the function of the buttons will revert to the Menu level (step 2 above), without making any changes.
6.Repeat this selection process for any other function changes desired. When finished with any changes, use the arrow buttons to
move to “QUIT”. Press the Mode/Set button once to exit the menu and return the receiver to normal operation. (“RF” and “AF” will reappear in the window, indicating the return to normal receiver operation, with the receiver’s audio output again enabled.)
Frequency Group Selection
To select a frequency scan group, press the Mode/Set button, then use the arrow button until the desired group appears in the display. To store the selected frequency scan group, press the Mode/Set button to enter the desired group; then use the arrow button to start the scan. When a flashing number is displayed, press and hold Mode/Set button to select the frequency. See detailed instructions in System Operation.
How to Restore Default Settings
To return all the receiver functions to their original factory default settings, first turn the receiver off. Then hold in the Mode/Set button while pressing and releasing the Power switch. The LCD will briefly show “RESET”, followed by “WAIT” (release the Mode/Set button), before commencing normal-mode operation at the default settings.
When the receiver is in the Menu or Edit mode, its audio output is silenced. Once control-setting operations are completed (or Escape is used), normal receiver operation will resume with its audio output restored.
While in the Edit mode, if no action is taken for approximately 30 seconds (no buttons pressed), the receiver will “back out” to the Menu mode. Similarly, after about 30 seconds of inaction in the Menu mode, the receiver will “back out” to normal receiver operation with audio output restored.
High-pass Filter
Internal high-pass filter circuitry may be set to four positions: Highpass Off, or a 6 dB, 12 dB or 18 dB slope at 150 Hz. The default setting is Off (“HP OFF”). Increasing the slope of the high-pass filter further suppresses unwanted low frequencies, while maintaining the frequency response in the desired audio range.
Meter Hold Setting
When activated (“MH ON”), this function permits the bar-meters in the LCD window to capture and display the highest-level “AF” audio modulation (a solid bar) and the lowest-level “RF” signal (a flashing bar) received from the transmitter. This is particularly useful when setting up the system initially, during a sound-check, or when diagnosing operating problems. The default setting is Off (“MH OFF”).
When the Meter Hold is On, it is possible to reset it – to obtain a new set of RF and AF readings – without turning it off-and-on using the Menu/Edit functions. Simply press the transmitter’s Power/Mute button once (to mute the transmitter) and wait until the receiver’s Alert light comes on, indicating the Mute condition. Then press the transmitter’s Power/Mute button once again, to un-mute the transmitter. After the Alert light goes out, a new set of min/max RF/AF readings will be indicated on the bar-meters. (Note that, depending upon the digital updating-and-confirming sequence of the Mute condition data from the transmitter, it may take several seconds for the Alert light condition to change. The Meter Hold function is not reset until the Alert light has turned on, then turned off.)
Digital Tone Lock™ Squelch
The 3000 Series employs a unique Digital Tone Lock squelch system that provides enhanced rejection of interference. In addition to providing highly effective control of unwanted noise, the Tone Lock signal from the transmitter also conveys data on the transmitter’s battery condition and mute status back to the receiver for display.
5
3000 Series Installation and Operation
(english)
The squelch level is adjustable from 15 dB (the default value) to 39 dB in 6 dB steps. Increasing the squelch level – also called “tightening the squelch” – can cause a reduction in useable range of the wireless transmitter, so use the lowest value that reliably mutes the unwanted RF signals. (If interference is a problem, first consider trying a different frequency.)
Antenna Power
The antenna input jacks also can provide +12V DC output on their center pins to power inline RF devices. A maximum of 60 mA can be drawn from each of the jacks. While an accidental short-circuit will not harm the internal 12V supply, make certain that an antenna cable shield does not contact the center conductor. Antenna Power (“ANT.PWR”) is selected (switched on or off) from the LCD menu.
Pre-coordinated Frequency Scan Groups 1-9
The nine scan groups provided on the 3000 Series receivers simplify the selection of usable frequencies in a multi-channel wireless system. If you are using multiple systems, stay within one of the nine frequency groups for all of your systems. The available frequencies within each group have been selected for simultaneous use, eliminating the frustration encountered when trying to select compatible frequecies in a multi-channel system.
Scan Groups 8 and 9 have been designed to allow for use on adjoining stages. Use Group 8 on one stage and Group 9 on a second nearby stage. Or use these two groups in two different rooms, with one room using Group 8, and the second using Group 9.
Receiver Functions (continued)
Function |
Default |
Choices |
Wrap- |
Menu |
Setting* |
(Edit)▲▼ |
around** |
▲▼ Group 6 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 6 |
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group |
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▲▼ Group 7 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 7 |
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group |
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▲▼ Group 8 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 8 |
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group |
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▲▼ Group 9 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 9 |
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group |
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▲▼ Quit |
QUIT |
Press Mode/ |
– |
(exit Menu) |
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Set to exit |
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*To reset to Default values, hold in the Mode/Set button while pressing the Power button to turn on the unit.
**Continue in the same Up/Down direction and choices “wrap around” to the other end of the range.
†Band I: 482.000 – 507.000 MHz; Band C: 541.500 – 566.375 MHz; Band D: 655.500 – 680.375 MHz; Band G: 721.500 – 746.375 MHz; Band E: 795.500 – 820.000 MHz; Band F: 840.125 – 864.900 MHz
Receiver Functions
Function |
Default |
Choices |
Wrap- |
Menu |
Setting* |
(Edit)▲▼ |
around** |
(Receiver powers-up at Frequency) |
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▲▼ Frequency |
Lowest in |
All frequencies |
Yes |
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band† |
in band |
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▲▼ High-pass |
HP OFF |
HP OFF, HP–6, |
No |
Filter |
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HP–12, HP–18 |
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▲▼ Meter Hold |
MH OFF |
MH OFF |
Yes |
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MH ON |
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▲▼ Squelch |
SQ 15 dB |
SQ 15 dB to |
No |
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SQ 39 dB in |
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6 dB steps |
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▲▼ Antenna |
OFF |
PWR OFF |
Yes |
Power |
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PWR ON |
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▲▼ Group 1 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 1 |
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group |
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▲▼ Group 2 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 2 |
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group |
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▲▼ Group 3 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 3 |
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group |
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▲▼ Group 4 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 4 |
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group |
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▲▼ Group 5 |
Lowest in |
All frequencies |
No |
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frequency |
in Group 5 |
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group |
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Transmitter Controls And Functions
Refer to Figures E, F, G and H for an overview of transmitter features and controls.
LCD Window
The backlit Liquid Crystal Display presents a great deal of setup and operating information clearly and conveniently (See examples in Fig. J). The LCD in the transmitters is designed for greatest contrast and best viewing with the window rotated somewhat away from the viewer (about 30 degrees), not straight-on, for a more convenient holding/ viewing position. The display is illuminated with a backlight when you power on the device and when you press Set to access transmitter functions. The backlight remains on during the Set process, only turning off if no action is taken within 30 seconds or if Quit is pressed; otherwise, it automatically turns off in ten seconds.
Power/Mute Button
The transmitters have a combination Power and Mute switch. When used in combination with the programmed choices explained below, the various functions available to the transmitter user may be tailored to fit personal preferences or particular situations of use.
Power On/Off
To turn the transmitter on, press and hold the Power/Mute button until the green power indicator and the LCD window come on (about 1-2 seconds). The operating frequency will show in the window after the power-up sequence.
To turn the transmitter off, press and hold the Power/Mute button again, until the green power indicator and the LCD window are extinguished (about 1-2 seconds). The LCD window will show “PWR.OFF” before shutdown.
Mute Off/On
When the transmitter is muted, it produces RF with no audio signal