Anytone AT-6666PRO 10 Meter Radio User Manual
- September 2, 2024
- AnyTone
Table of Contents
AT-6666PRO 10 Meter Radio
Specifications
- Brand: Qixiang Electron Science & Technology Co., Ltd
- Model: AT-6666PRO
- Type: 10 Meter Radio
- Power Supply: 13.8V (12V) DC
- Fuse: 15A, 250V
- Antenna Impedance: 50 ohms, unbalanced
Product Usage Instructions
Installation
Choose an appropriate location for installation, ensuring it
does not obstruct the driver or passengers:
- Fix the Bracket using Self-tapping Screws and Pads.
- Attach Adhesive Case Protectors to the Mounting Bracket.
- Loosely fit Adjusting Screws and choose a suitable angle.
- Tighten Adjusting Screws firmly by hand.
Antenna Installation
- Screw the antenna connector into the antenna jack.
- Ground the antenna system for optimal performance.
- Do not transmit without a resonant antenna connected.
Power Connection
-
Connect positive (red) power cable to the + terminal of the
battery. -
Connect negative (black) power cable to the – terminal of the
battery. -
Avoid high temperature and moisture for the power cable.
Replacing Fuse
If the fuse blows:
- Determine the reason for the blow.
- Correct the problem causing the blow.
- After resolving the issue, replace the fuse.
FAQ
Why is grounding the antenna system important?
Grounding ensures optimal performance and safety by providing a
path for excess electrical energy to dissipate harmlessly into the
ground.
Can I use a vehicle cigarette lighter socket to power the
radio?
No, it is not recommended as it may not provide the correct
voltage or current, leading to potential performance issues or
damage.
Qixiang Electron Science & Technology Co., Ltd www.anytone.net
A1.240428
AT-6666PRO
10 Meter Radio
User Manual
CONTENTS 1.FUNCTIONS & FEATURES …………………………………………………………………..1 2.STANDARD ACCESSORIES…………………………………………………………………2 3.INSTALLATION ……………………………………………………………………………………3 4.GETTING ACQUAINTED………………………………………………………………………6 5.HOW TO USE YOUR RADIO ………………………………………………………………..9 6.KEYPAD FUNCTION ………………………………………………………………………….10 7.CHANNEL FUNCTION MENU OPERATION………………………………………….13 8.PUBLIC DATA FUNCTION MENU OPERATION ……………………………………15 9.BACKGROUND FUNCTION MENU OPERATION ………………………………….16 10.SELF DEFINE PF KEY ……………………………………………………………………..20 11.SPECIFICATIONS …………………………………………………………………………….22
1. FUNCTIONS & FEATURES
1. LCD display with 7 color options and back light dimming 2. FM, AM, USB,
LSB, CW, PA modes 3. Frequency Tuning Steps: 10Hz, 100Hz, 1KHz, 5KHz, 10KHz,
100KHz, 1MHz 4. ± 500Hz, 5KHz Clarifier (R/T/R+T selectable) 5. Flexible menu
functions and PC programming software 6. RX and TX NRC Noise Reduction 7. SQ,
ASQ Function (FM and AM mode) 8. RF GAIN Adjustment 9. RF PWR Adjustment 10.
VFO / BAND / Memory Channel Modes 11. Repeater Shift / Offset Frequency
Function 12. CTCSS/DCS with RX/TX Split functions 13. SCAN Function 14. NB/ANL
Function 15. DW DUAL-WATCH Function 16. SWR, S/RF meter Function 17. TOT
function 18. HI-CUT Function 19. EMG CALL 20. SWR Protection 21. Power Supply
Voltage Protection 22. Key-Lock Function 23. DTMF Function 24. BEEP Prompt 25.
Enhanced VOX Function (VOX.SPK can support digital mode operation) 26. ECHO
Function 27. Programmable RB Function 28. AM TX NPC 29. User Defined (PF) key
on microphone 30. Audio path select 31. +10KHz Function
1
AT-6666PRO 10 Meter Radio
2. STANDARD ACCESSORIES
Radio Screws
Microphone
Install bracket
Pads
Adjusting screws
Microphone Hanger
Adhesive Case Protectors
Fuse(15A 250V)
AT-6666PRO 10 Meter Radio
2
3. INSTALLATION
Choose the most appropriate location from a simple and practical point of
view. If installed in a vehicle, care should be taken to ensure your radio
does not obstruct the driver or passengers.
1. Use the Self-tapping Screws and Pads to fix the Bracket to a suitable
location. 2. Attach the Adhesive Case Protectors to the inside ends of the
Mounting Bracket and
insert the Radio. Fit the Adjusting Screws loosely, and choose a suitable
angle by moving the Adjusting Screws to one of the 3 positions on the Mounting
Bracket. 3. Tighten the Adjusting Screws firmly by hand. Make sure the radio
and all accessories are securely mounted.
3.1 Antenna Installation …………………………………………………………………….
Before using this radio, please install an efficient and resonant antenna.
Using an antenna that is correctly installed and tuned will enable excellent
communication performance.
This radio requires an antenna impedance of 50 ohms, unbalanced.
1. Screw the antenna connector into the antenna jack. 2. Grounding of the
antenna system is recommended to ensure best performance.
WARNING:
NEVER transmit without a connected resonant antenna, or a suitable 50 ohm load
being connected. Damage to the radio may result.
To reduce the risk of electric shock, or radio damage, base station
installations should include lightning protection devices.
Ask your authorized dealer or an authorized service center for available
antenna options.
3
AT-6666PRO 10 Meter Radio
3. INSTALLATION
3. A mobile antenna can be mounted in various locations, for example:
3.2 Power Connection ……………………………………………………………………….
This radio requires a 13.8V (12V) DC power supply. Never connect the radio
directly to a 24V DC battery system, as can be found in some vehicles. Please
refer to the radio Specifications to ensure your 13.8V DC power supply can
provide enough current (amps), otherwise poor performance may occur. 1.
Connect the positive (red) power cable to the + terminal of the battery. 2.
Connect the negative (black) power cable to the – terminal of the battery.
Locate the power cable away from high temperature, moisture, and other
electrical systems. Ensure it is installed where it cannot be damaged.
It is not recommended to use a vehicle cigar/cigarette lighter socket to power
the radio, as it may not supply the correct voltage or current.
Do not remove the fuse holder from the cable.
3.3 Replacing Fuse ……………………………………………………………………………
This radio requires a 15A, 250V fuse. If the fuse blows, determine the reason,
then correct the problem. After the problem is resolved, replace the fuse. If
newly installed fuses continue to blow, disconnect the power cable and contact
your authorized dealer or an authorized service center.
1. Pull the two fuse cover in opposite directions and open it. 2. Replace the
blown fuse with a new one, and close the fuse holder. 3. Be sure to only use
the correct fuse type, otherwise damage may occur.
AT-6666PRO 10 Meter Radio
4
3. INSTALLATION 3.4 Install Microphone Hanger …………………………………………………………..
Choose a location which will not interfere with the driver. Use the supplied
self-tapping screws and pads to install the hanger.
3.5 Install External Speaker ……………………………………………………………….
If using an external speaker, please choose an 8 ohm speaker with a 3.5mm mono
(double cable) TS type plug.
1. Locate the external speaker in a suitable place. 2. Plug into the speaker
jack.
5
AT-6666PRO 10 Meter Radio
4. GETTING ACQUAINTED
4.1 Front Panel………………………………………………………………………………….
9 10
11 12
1
2
3
4
15
14
16
13
5
6 17 7
8
No. Key 1 FUNC 2 MODE 3 BAND 4 SCAN 5 MEM 6 TSQ 7 NRC 8 EMG 9 PWR 10 RFG 11 SQ 12 CLAR 13 VOL / OFF 14 CH / PUSH 15 -16 -17 —
Functions Function / Menu key Switch Mode: FM, AM, USB, LSB, CW, PA Switch Band: A-I / VFO mode Scan / Scan add / Scan delete Use, Store or Delete memory channels Activate / deactivate the CTCSS/DCS function Activate / deactivate the NRC function Emergency Channel; Keypad lock RF Power Control RF Gain Control Squelch Control SSB/CW Clarifier Control Power On/Off; Volume Control Channel Switch; PUSH key RX/TX Indicator Microphone Jack LCD Display
AT-6666PRO 10 Meter Radio
6
4. GETTING ACQUAINTED
4.2 Rear Panel …………………………………………………………………………………..
20
19 18
ANT EXT SP DATA
No. Functions 18 PC Cable Jack 19 External Speaker Jack 20 Antenna Jack
4.3 Microphone …………………………………………………………………………………
DOWN PTT
6-Pin Connector
PF (User defined) UP
Mic
MIC EXT.AF PTT MIC.KEY GND 6. +DC
Microphone cable
7
AT-6666PRO 10 Meter Radio
4. GETTING ACQUAINTED
4.4 LCD Display ………………………………………………………………………………..
19
1
2
34
5 6 7 18 8
9
25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25
10 11
12 13
24 23 22 21 20 17 16 15 14
Appears during transmit (TX) Displays the working mode Appears when using
Emergency channels Appears when using Memory channels Appears when Echo
function is ON Appears when Repeater Offset function is ON Appears when Hi-Cut
function is ON Displays the channel number Appears when Noise Blanker / ANL is
ON Displays the Band name Appears when +10Khz function is ON Appears when the
Roger Beep function is ON Display of the TX/RX signal strength Not in use
Appears when the VOX function is ON Appears when the Scan function is ON
Appears when the Keypad Lock function is ON Appears when the SSB/CW clarifier
is enabled Appears when the SWR level indication is enabled Appears when Dual
Watch function is ON Appears when NRC Noise Reduction function in ON Appears
when ASQ is enabled Appears when DCS is enabled Appears when CTCSS is enabled
Displays the Frequency and Channel information
AT-6666PRO 10 Meter Radio
8
5. HOW TO USE YOUR RADIO
5.1 OFF/ON Radio ……………………………………………………………………………..
1. Turn VOL clockwise to switch the radio ON, the radio may emit a beep (if
the BEEP Prompt function is enabled). The LCD display will show a frequency or
a channel number.
2. Turn VOL anti-clockwise to switch off the radio OFF.
5.2 Volume Control ……………………………………………………………………………
When the radio is turned on, turning VOL clockwise will increase the Volume
level. Turning VOL anti-clockwise will reduce the Volume level. Adjust the
volume during communication to get suitable level. Note: On-screen display of
the level can be enabled/disabled with PC software.
5.3 RF Power Control ………………………………………………………………………..
When the radio is transmitting, turn PWR outer shaft to adjust power. Turn it
clockwise to increase power, anti-clockwise to reduce power. Note: On-screen
display of the level can be enabled/disabled with PC software.
5.4 RF Gain Control …………………………………………………………………………..
When the radio is receiving, turn RFG inner shaft to adjust RF gain. Turn it
clockwise to increase gain, anti-clockwise to reduce gain. Note: On-screen
display of the level can be enabled/disabled with PC software.
5.5 SQUELCH Control……………………………………………………………………….
When the radio is standby, turn SQ outter shaft clockwise to adjust squelch
level. The LCD displays SQ: XX. (XX represents the squelch level, total 1-36
levels). Note: On-screen display of the level can be enabled/disabled with PC
software.
5.6 SSB Clarifier Control ……………………………………………………………………
When the radio is transmitting or receiving, turn CLAR inner shaft to adjust
USB/LSB/CW TX or RX frequency. Turn it clockwise to increase frequency, or
anti-clockwise to reduce frequency. Note: See Menu items #15 and #16 for CLAR
settings.
5.7 Channel Selection ……………………………………………………………………….
When the radio is in channel mode, turn channel knob to select desired
channel. Clockwise to increase, and anti-clockwise to reduce the channel
number.
5.8 Frequency Control……………………………………………………………………….
1. When in channel mode, press [PUSH] key to temporarily adjust the VFO
frequency.
2. When the frequency is flashing, press [PUSH] again to adjust frequency
step size. 3. When the desired frequency digit/step is flashing, turn CH
clockwise to increase
frequency, or anti-clockwise to reduce frequency.
Note: In channel mode, changing the VFO frequency is temporary, and is not
saved to memory. The frequency will return to the default programmed channel
after after changing channels.
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AT-6666PRO 10 Meter Radio
6. KEYPAD FUNCTION
6.1 MEM or ANL/NB …………………………………………………………………………..
6.1.1 Using memory channels:
1. Short press
to enter memory channel, turn CH to choose memory channel.
M1-M99, (total of 99 memory channels).
2. Short press
again to exit memory channel mode.
6.1.2 Store/Delete memory channels:
1. Store memory channel:
When the radio is not in memory channel mode, choose the frequency to be stored,
and hold
enter storage mode, the channel number flashes. Turn the CH switch
to choose the location to be stored (M1-M99), then hold
until the channel
number stops flashing. The memory is stored.
2. Delete memory channel:
In memory mode, hold
for over 2 seconds, the memory channel number flashes,
turn the CH switch to choose the memory to be deleted, then hold
until the
channel number stops flashing. The memory is deleted.
6.2 ANL/NB ……………………………………………………………………………………….
Press +[NB/ANL] key to enable NB/ANL function. The “NB/ANL” icon will appear
on the LCD display. Press the key repeatedly to switch on/off the function.
6.3 MODE or DIM……………………………………………………………………………….
6.3.1 MODE Short press key to choose the mode FM-AM-USB-LSB-CW-PA. Note: Modes
can be enabled and disabled using the PC software
6.3.2 DIM Press FUNC+MODE key to adjust the backlight dimmer / brightness.
6.4 BAND or COLOR………………………………………………………………………….
6.4.1 BAND Short press key to choose band A-B-C-D-E-F-G-H-I.
6.4.2 COLOR Press + key switch LED backlight color, repeat this operation to switch between different color backlights.
6.4.3 VFO Long press
key to turn on the VFO function. The LCD displays “VF”
AT-6666PRO 10 Meter Radio
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6. KEYPAD FUNCTION
6.5 FUNC…………………………………………………………………………………………..
1. Long press for 2 seconds to enter the main Background Function menu (See
section “9. BACKGROUND FUNCTION MENU OPERATION”).
2. Short press , “FUN” will appear at the top left of LCD display. Press
[PUSH] to enter the Function menu list. (See section “7. CHANNEL FUNCTION MENU
OPERATION”).
6.6 SCAN or DW………………………………………………………………………………..
6.6.1 SCAN 1. Short press to start scan function, ” ” flashes in the LCD. 2.
In scan mode, turning the Channel switch will change the scan direction. 3.
Short press again to exit scan.
Add/delete scan list
In channel mode, Long press scan list.
for over 2 seconds to add or delete a channel from
1. When LCD displays ” “, the present channel is added to the scan list.
2. When LCD does not display ” “, the present channel is not added to the scan list.
Note: This function is equal to the CHANNEL FUNCTION menu item, No.06.
6.6.2 DW Press + key to turn on Dual watch function, LCD displays ” operation to switch ON/OFF the DW function.
“; Repeat this
6.7 TSQ or HI-CUT …………………………………………………………………………….
6.7.1 TSQ Short press key to start the CTCSS/DCS function, repeat this operation to switch ON/ OFF the function. Long press key to quickly enter the CTCSS/DCS function setting.
6.7.2 HI-CUT
Press + key to turn on HI-CUT function, LCD displays ” operation to switch
ON/OFF the function.
“; Repeat this
11
AT-6666PRO 10 Meter Radio
6. KEYPAD FUNCTION
6.8 NRC or SPLIT ………………………………………………………………………………
6.8.1 NRC
Short press key to start the RX noise reduction function. Repeat this
operation to switch ON/OFF the function. Short press [PTT]+ key to start the
TX noise reduction function. Repeat this operation to switch ON/OFF the
function. Long press key to quickly enter the noise reduction level setting
menu.
6.8.2 SPLIT Press + key to turn on SPLIT function, LCD displays ” “; Repeat
this operation to switch ON/OFF the function. Note: Refer to Menu items for
additional TX Repeater SPLIT / Offset settings.
6.9 EMG ……………………………………………………………………………………………
Choose EMG channel:
Short press
to use Emergency channel, LCD displays ” “.
1. Short press
once to choose CH9;
2. Short press
again to choose CH19;
3. Short press
again to return to last normal channel.
Note: See Menu item #20 and #21 for EMG channel settings.
Keypad Lock Function:
1. Long press
to lock keys, LCD displays ” “;
2. Long press
again to unlock the keys.
Note: When this function is turned on, only the [PTT] button is valid.
AT-6666PRO 10 Meter Radio
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7. CHANNEL FUNCTION MENU OPERATION
1. Press , the top left of LCD displays “FUN”, Press [PUSH] to enter the menu
list. 2. Turn Channel switch to select menu No.1- No.7. 3. Press [PUSH] to
choose the menu to modify. 4. Turn the Channel switch to modify the menu
options. 5. Press [PUSH] to return to the previous menu. Press any other key
or wait 5 seconds,
and the menu will exit and the modified settings will be stored.
No. Function Busy
1 Channel Lockout
Repeater 2 Offset
Direction
3 R-CDC
4 T-CDC
5 C-CDC
6
Add/delete Scan list
LCD Display
Values and Descriptions
OFF: Disable Busy Channel Lockout function; ON: Enable Busy Channel Lockout
function; Default: OFF.
REP+: Enable offset + direction function, TX frequency > RX frequency; REP-:
Enable offset – direction function, TX frequency < RX frequency; OFF: Disable
offset direction function. Default: OFF.
CTCSS/DCS: RX setup OFF: Turn off CTCSS/DCS function; CTCSS: 67.0Hz~250.3Hz,
Total 38 tones; DCS: D023N~D754N, Total 104 codes; Default: OFF Note: Press
SCAN key to start CTCSS/DCS scanning.
CTCSS/DCS: TX setup OFF: Turn off CTCSS/DCS function; CTCSS: 67.0Hz~250.3Hz,
Total 38 tones; DCS: D023N~D754N, Total 104 codes; Default: OFF
CTCSS/DCS: RX+TX setup OFF: Turn off CTCSS/DCS function; CTCSS:
67.0Hz~250.3Hz, Total 38 tones; DCS: D023N~D754N, Total 104 codes; Default:
OFF Note: Press SCAN key to start CTCSS/DCS scanning.
ADD: LCD displays “SC”, present channel is added to scan list. DEL: LCD does
not display “SC”, present channel is not added to scan list. Default: OFF
13
AT-6666PRO 10 Meter Radio
7. CHANNEL FUNCTION MENU OPERATION
7 Public Data
OFF: Choose independent channel menu; ON: Choose public channel menu; Default:
ON
Note: When OFF is selected, additional hidden public channel menu items 8-13
will appear. These are the same as shown in ‘Section 8’.
Note: Public Data settings can be used to enable saving of individual settings
(e.g. Mode, NB, etc) per individual channel.
For example: – Channels with PD=OFF will remember the last used mode and
settings, individually. When you return to the channel later, the last used
mode and settings will be recalled.
– Channels with PD=ON will use the mode and settings from the global PUBLIC
settings (e.g. if the radio is set to FM mode and NB, then all channels with
PD=ON will follow this last used global PUBLIC mode and setting.
PC Software can also be used to configure the PUBLIC DATA option for
individual channels, bands, or to apply these settings globally.
AT-6666PRO 10 Meter Radio
14
8. PUBLIC DATA FUNCTION MENU OPERATION
1. Hold [PUSH] for 2 seconds to enter the Public Data menu list; 2. Turn the
Channel switch to select menu 1-6; 3. Press [PUSH] to choose the menu to
modify; 4. Turn the Channel switch to modify the menu options. 5. Press [PUSH]
to return to the previous menu. Press any other key or wait 5 seconds,
and the menu will exit and the modified settings will be stored.
No. Function
LCD Display
Values and Descriptions
1 HI-CUT
OFF: Disable HI-CUT function; ON: Enable HI-CUT function; Default: OFF.
2 NB/ANL
OFF: Disable NB/ANL function; ON: Enable NB/ANL function; Default: OFF.
3 ECHO
OFF: Disable ECHO function; ON: Enable ECHO function; Default: OFF
4 10KHz
OFF: Disable +10KHz function; ON: Enable +10KHz function; Default: OFF
5 ROGER
OFF- 5, Total 6 options. Default: OFF, (RB Disabled)
6
DTMF PTT ID
BOT: Press PTT to send DTMF encode; EOT: Release PTT to send DTMF encode;
CALL: Hold PTT+EMG to send DTMF encode;
Note: If the M1-M16 memory storage has no PTT ID’s set, the DTMF function will
be defaulted to OFF. DTMF groups can only be selected once they have been
programmed.
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AT-6666PRO 10 Meter Radio
9. BACKGROUND FUNCTION MENU OPERATION
1. Hold [MENU] for 2 seconds to enter the Background Function menu list; 2.
Turn the Channel switch to select menu 1-37; 3. Press [PUSH] to choose the
menu to modify; 4. Turn the Channel switch to modify the menu options; 5.
Press [PUSH] to return to the previous menu. Press any other key or wait 5
seconds
and the menu will exit and the modified settings will be stored.
No. Function 1 KEY.BEEP 2 LCD TX DISPLAY 3 STEP 4 MIC.GAIN
LCD Display
Values and Descriptions
1-5,OFF, Total 6 levels available. Default: 03.
OFF: Displays TX frequency when in TX; SWR: Displays SWR value when in TX;
TOT: Displays TOT remaining time when in TX; DC: Displays DC voltage when in
TX; Default: OFF. Adjust the default step size in VFO mode. Options: 10Hz,
100Hz, 1KHz, 5KHz, 10KHz, 100KHz, 1MHz; Default: 1KHz.
1-45, Total 45 levels of Microphone Gain available. Default: 33.
5 MIC.TYPE 6 AM.NPC 7 VOL.PATH
ELEC: Electret Microphone DYNA: Dynamic Microphone Default: ELEC.
OFF: Disable AM NPC function. ON: Enable AM NPC function. Default: OFF.
MAIN: The VOL knob controls the internal speaker volume; MIC.JACK: The VOL
knob controls the microphone jack output volume; BOTH: The VOL knob controls
both the internal speaker and microphone jack output volume; Default: MAIN
AT-6666PRO 10 Meter Radio
16
9. BACKGROUND FUNCTION MENU OPERATION
Monitor Gain 8 (Talkback)
ECHO
9 volume level setting
10
ECHO delay time setting
11 TOT SWR
12 Protection Voltage
13 Protection
14 Scan Type
15 Clarifier
Clarifier 16 Freq Range 17 Dimmer
Backlight 18 Color 19 DW Channel 17
1-32, OFF, Total 33 levels available; Default: OFF (Disable NOG function)
1-32, Total 32 levels available; Default: 28
1-32, Total 32 levels available; Default: 28
1-600s, OFF, Total of 10 minutes available; Default: 180s
OFF: Disable the SWR Protection function; ON: Enable the SWR Protection
function; Default: ON OFF: Disable the Voltage Protection function; ON: Enable
the Voltage Protection function; Default: ON SQ: Squelch based scan function;
TI: Time based scan function; Default: SQ OFF: Disable clarifier adjustment;
R: Enable RX frequency adjustment; T: Enable TX frequency adjustment; RT:
Enable both RX and TX frequency adjustment; Default: R
500Hz: adjustable range ±500Hz; 5KHz: adjustable range ±5KHz; Default: 500Hz
1-5, 5 backlight dimmer levels available; Off: Turn off the backlight;
Default: 5 WHITE, BLUE, GREEN, YELLOW, RED, PURPLE, CYAN Default: WHITE
Set the Dual Watch channel, mode and band: Turn channel knob to change
channel, press MODE to choose the mode, press BAND to choose the band.
AT-6666PRO 10 Meter Radio
9. BACKGROUND FUNCTION MENU OPERATION
20 EMG1 Channel EMG2
21 Channel TX Repeater
22 Shift
23 ASQ Level
24 VOX
25
VOX sensitivity
26
VOX Delay Time
27
VOX Speaker
RX Noise 28 Reduction
Level
TX Noise 29 Reduction
Level
30 FM Deviation
Set Emergency Channel 1 and its mode. Turn channel knob to choose the channel,
press MODE to choose the mode.
Set Emergency Channel 2 and its mode. Turn channel knob to choose the channel,
press MODE to choose the mode.
100Hz-5MHz, Frequency Shift/Offset range. Default: 100KHz
01-09: Total of 9 Automatic Squelch levels; OFF: Turn off ASQ Default: 05.
OFF: Disable VOX function; ON: Enable VOX function; Default: OFF
01-09, Total of 9 VOX sensitivity levels; Default: 03
01-09, Total of 9 VOX Delay Time levels; Default: 03
OFF: VOX PTT is disabled when squelch is open; ON: VOX PTT is enabled when
squelch is open; Default: OFF
01-05: Total of 5 levels for RX noise reduction; OFF: Turn off RX noise
reduction; Default: OFF
01-05: Total of 5 levels for TX noise reduction; OFF: Turn off TX noise
reduction; Default: OFF
2K: 2KHz FM deviation 4K: 4KHz FM deviation Default: 2K
AT-6666PRO 10 Meter Radio
18
9. BACKGROUND FUNCTION MENU OPERATION
31
SSB TX Audio
32
CW Volume (Sidetone)
33 CW FREQ
AGC 34 (S-Meter
Response)
User Define 35 PF Key
DTMF 36 Encode
37 Reset
HI 4K: 4KHz SSB audio bandwidth; LO 3K: 3KHz SSB audio bandwidth; Default: HI
4K
01-63: Adjusts the CW Sidetone level (volume); OFF: CW Sidetone disabled;
Default: 31
300Hz-3KHz: This menu is to select CW Sidetone; frequency. The frequency step
is 10Hz; Default: 1050Hz
SLOW: AGC SLOW response; FAST: AGC FAST response; Default: SLOW
A total of 16 PF key functions are available. See ‘Section 10. SELF DEFINE PF
KEY’ for options. Default: INDIC
S TIME: DTMF transmit time; FDELAY: First digital delay time; C TIME: Pre-
carrier time; # TIME: and # delay time; D CODE: D code setting time; TXDIS:
Display setting for DTMF transmit; MEM: DTMF encode storage list;
Note: In the DTMF encode storage list (M1-M16), press PUSH to edit DTMF code,
then turn channel knob to choose desired value. Press PUSH again to edit next
list. Hold PUSH to store any chnages and exit back to the main menu.
OPT: Settings/Functions reset to defaults; ALL: Channels and
Settings/Functions reset to defaults; Default: OPT
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AT-6666PRO 10 Meter Radio
10. SELF DEFINE PF KEY
1. Hold [MENU] for 2 seconds and enter the Background Function menu #35
PF.KEY; 2. Press [PUSH] to choose the menu to enter modify mode; 3. Turn the
Channel switch to modify the PF.KEY menu options; 4. Press [PUSH] to return to
the previous menu. Press any other key or wait 5 seconds,
and the menu will exit and the modified settings will be stored.
No. LCD Display 1st Function (PF Short Press) 2nd Function (PF Long Press)
1
VOX
VOX ON/OFF
Enter VOX setting menu
2
VFO
VFO ON/OFF
Enter STEP setting menu
NB.ANL ON/OFF. See below:
3 NB.ANL
-NB ANL ANL+NB OFF
4
10K
+10K ON/OFF
—
5
ECHO ECHO ON/OFF
Enter ECHO setting menu
6 HI-CUT HI-CUT ON/OFF
—
7
CALL DTMF ON/OFF
Enter DTMF setting menu
CTCSS/DCS ON/OFF
8
C-CDC – If a channel has no CTCSS/ Enter C-CDT setting menu
DCS, the LCD will show “ERROR”
9
ASQ
Enter ASQ level setting menu
—
10 MIC.GAIN Enter Mic Gain setting menu
—
11 AM.NPC AM TX NPC ON/OFF
—
12 RXNR RXNR ON/OFF
Enter RXNR setting menu
AT-6666PRO 10 Meter Radio
20
10. SELF DEFINE PF KEY
13 TXNR TXNR ON/OFF
Enter TXNR setting menu
14 FM.DEV Choose FM Deviation level
—
15
TONE Choose SSB TX bandwidth
16
INDIC Choose LCD meter display
17 CH.PUSH Choose frequency STEP size
—
When set to SWR, long press enters SWR setting menu.
Enter Public Setting PD menu
18 AGC.SET Choose AGC FAST/SLOW speed —
21
AT-6666PRO 10 Meter Radio
11. SPECIFICATIONS
Frequency Range Frequency Band Channel Frequency Control Frequency Step
Frequency Tolerance Temperature Range Microphone Input Voltage Dimensions (in
mm) Weight Antenna Connector
Power Output Drain Modulation Inter-modulation Distortion SSB Carrier
Suppression Unwanted Sideband Frequency Response Output Impedance
Sensitivity
Adjacent-Channel Selectivity Image Rejection IF Frequency RF Gain Control
Automatic Gain Control(AGC)
Squelch Audio Output Power Frequency Response Built-in Speaker External
Speaker(Not Supplied)
GENERAL 28.000-29.700MHz (Programmable) A/B/C/D/E/F/G/H/I + VFO 40 channels
(programmable) in each band Phase-Locked-Loop Synthesizer
10Hz,100Hz,1KHz,5KHz,10KHz,100KHz,1MHz
±5.0 ppm -20~ +50 With Push-to-Talk / UP / DN / PF and coiled cord 13.8V DC
252(L) x 158(W) x 48(H) 1.27kg
UHF, SO239 TRANSMITTER
AM: 80W(PEP) / FM:50W / SSB: 80W(PEP) 15A (with modulation) FM/AM/USB/LSB/CW
SSB: 3rd order, more than -25dB; 5th order, more than -35dB 55dB 50dB AM/FM:
300 to 3000Hz SSB: 450 to 2500Hz 50ohms, unbalanced
RECEIVER SSB: 0.25V for 10dB(S+N)/N AM:1.0V for 10dB(S+N)/N FM: 1.0V for 20 dB
(S+N)/N (All at greater than 1/2 watt of audio output) AM/FM: 60dB SSB: 70dB
More than 65dB AM/FM: 10.695MHz 1st IF, 455KHz 2nd IF SSB: 10.695MHz 45dB
adjustable for optimum signal reception Less than 10dB change in audio output
for inputs from 10 to 100,000 microvolt. Adjustable; threshold less than 1.0V.
Automatic Squelch Control (AM/FM) 1.0V 3 watts into 8 ohms AM/FM: 300 to
3000Hz SSB: 450 to 2500Hz 8 ohms, round. 8 ohms; disables internal speaker
when connected.
AT-6666PRO 10 Meter Radio
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