User Manual

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Table Of Contents

The user programmable Key Lock function allows the Key Lock to be assigned to the lower side

button and enabled \ disabled via the radio’s controls without the use of a computer.

Checking The Status Of The Key Lock

To check whether the key lock is currently enabled or disabled:

• Put the radio into User Programming Mode (UPM) by pressing and holding the top side

button and the PTT button when you turn the radio on. This will cause the radio to emit

beeps and the LED to slowly flash yellow.

• Once you are in User Programming Mode press the PTT button, the radio will emit 2 high

tone beeps if the key lock is enabled or 2 low tone beeps if the key lock is disabled.

Enabling \ Disabling The Key Lock

• Put the radio into “User Programming Mode (UPM)“.

• Next enter "Key Lock Button Programming (KLBP) Mode" by pressing and holding the PTT

until a "warble" sound is emitted from the radio.

• To disable the Key Lock press the upper side button and the radio will emit 2 low tone beeps

to confirm it is disabled.

• To enable the Key Lock press the lower side button and the radio will emit 2 high tone beeps

to confirm it is enabled.

To save the setting press the PTT button, the radio will confirm this with a long beep and return to

the User Programming Mode.

Exiting Key Lock Button Programming Mode

If you want to exit Key Lock Button Programming without saving any changes that you have made,

press the orange button on top of the radio while it is in KLBP and the radio will give a single low

toned beep and will return to User Programming Mode without any of the changes being saved.

Using The User Programmable Key Lock

• If no functions are assigned to the short press of the lower side button, then the key lock will

automatically be assigned to the short press of the lower side button.

• If a function is assigned to the short press of the lower button, but no function is assigned to

the long press of the lower side button, then the key lock will be assigned to the long press of

the lower side button.

• But if functions are assigned to both the short and long press of the lower side buttons, then

the key lock feature cannot be used and if you perform a long press of the lower side button

the radio will emit an error beep.

User Programmable Key Lock

HT446E

Checking the current configuration

• A momentary press of the bottom side

function button will cause the radio to

beep the CTCSS/DCS tone programmed

into the channel (see CTCSS/DCS beep

codes below). If no tone is programmed in

to a channel position a

tone will sound.

Changing the assigned CTCSS/DCS Tone

• Press and hold the PTT button and the

bottom side button together until the

radio emits a “warble” sound and illumi-

nates the LED GREEN, confirming the

radio is in CTCSS/DCS programming

mode.

• Using the two side buttons enter the

CTCSS/DCS number from the table

below.

• The lower side button = 10’s of units

(radio emits a sound on every

increment)The upper side button = units

(radio emits a short sound on every

increment).

• For example to enter CTCSS tone

189.9Hz (number 38) press the lower but-

ton three times to enter the 10’s (3) and

the upper side button eight times to enter

the units (8).

• Now press the PTT button to store the

setting and automatically return to the

“check configuration” mode (a

sound and flashing yellow LED will confirm

this action).

To check the entered setting, press the

bottom side function button.

• To turn off CTCSS/DCS tone on a channel,

enter tone programming mode, press the

PTT button without selecting a tone.

•

Once you have finished programming the

radio press the orange button on top of

the radio to exit programming mode and

return the radio to normal operation.

Please note: The orange button allows you to

escape from any setting without saving the

data. If you are in frequency programming

mode but decide not to save the setting you

may press the orange button to exit without

saving.

Special notes re DCS tones

If you have entered a DCS tone and pressed

the PTT button during programming you will

immediately hear a sound prompting

you to set the tone to “inverted” or “normal”.

Press the upper side button to select normal

or inverted DCS tone.

Normal =

Inverted =

Now press the PTT button to store the set-

ting. A long beep and flashing yellow LED will

confirm safe storage.

To check the entered setting, press the bot-

tom side function button.

Check / Modify CTCSS/DCS Tone