Question about Cobra HH37ST - HAND HELD 2-Way Radio

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Channel changing the channel up/down key is not responding

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Posted on Aug 12, 2008

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How do I change my American standard horizon hx851 to receive Australian channels


To change this radio from Canadian to USA or to International frequency band plans, hold down the [16/9] key and press the [CLR (WX)] key. The band will change from Canadian, to USA, then to International on each press.
Australia uses the International marine band plan.
Have fun.

Dec 10, 2014 | Standard Horizon Radio Communications

1 Answer

Slow responce by buttons


those buttons r proximity type - ie not a mechanical switch.
they get funny over time and may respond to a disassembly and cleaning. then again maybe not

Oct 14, 2014 | Radio Communications

1 Answer

How do I Change the frequency on a Rkio Nike TWo way radio


Hi Gary - I copied this from the RIO NIKE manual:

mode button
Press MODE to select the setting you want to change.
The normal display is replaced by the adjustable setting.
Use the + and - buttons to adjust the settings.
These are the settings you can change.
1. Main Channel (1-14)
2. Sub Channel (1-38)
3. Channel Scan (ON/OFF)
4. Sub Channel Scan (ON/OFF)
5. Button Confirmation Tone and Roger Beep ON/OFF)
6. Vox (OFF, ON LO, ON HI) (psc[communicate wxonly)
When you have proceeded through all adjustable settings, the normal display will reappear. Or, press TALK at any time to return to the normal display.

select main channel
There are 14 main channels.
To select main channels:
1. Press MODE until CHAN is displayed.
2. Press + and - keys to select the main channel.
select sub channel:
Each main channel has 38 sub channels, sometimes called
CTCSS channels. Select one of these sub channels to transmit
on a channel that is free from traffic.
To select sub channels:
1. Press MODE until SUB CHAN is displayed
2. Press + and - keys to select the sub channel.
Note :If you select channel "0," you will be able to receive transmissions from all the sub channels of the main channel you selected.

Download manual:

Jan 27, 2014 | Rio Nike PSC Communicate (14 Channels)...

1 Answer

Walkie talkies model gmr325-2 ic;513C-UT914 HOW DO I GET THESE TO TRANSMIT, MY HUSBAND HAS CANCER AND WE NEED THEM IN OUR BEDROOMS AND WHEN I AM OUTSIDE, TK U, TK U


In order to get the most out of your new radio, read this reference guide completely before attempting to operate the radio.

Turning the Radio On and Adjusting the Volume

1) Press and hold the key to turn the radio ON.

2) To change the volume level press the volume/monitor up or down key to increase or decrease the volume level.

3) Press and hold the key to turn the radio OFF.

Adjusting the Sound (Key Beeps)

Your radio emits a beep each time one of the keys (except for the PTT button and call key) is pressed.
The sound of the Key Beep will increase or decrease depending on the volume level setting.

To turn OFF this beep:

Press and hold the call key while turning ON the radio.

To turn ON this beep:

Turn the radio OFF and ON again.

Choosing a Channel

Your GMR325-2 radio has 22 channels you can use to talk to others. In order to speak to someone,
each of you must be set to the same channel.

To choose a channel:

Press the channel/scan up or down key to increase or decrease the channel number displayed.

Channel Scan Feature

Your GMR325-2 radio has a channel Scan feature that allows you to easily Scan all 22 channels. When an active channel is detected, the unit will pause on that channel until the channel is clear. Then after a 2 second delay, the unit will continue scanning.

Pressing PTT button while the Scan is paused on a channel will allow you to transmit on that channel.

To turn ON channel scanning:

Press and hold either the channel/scan up or down key. The channel number on the display
will rapidly cycle through the channels.

To turn OFF channel scanning:

Press either the channel/scan up or down key.

Talking on Your Radio

To talk to others using the radio:
1) Press and hold the PTT button and speak in a clear, normal voice about 2-3 inches away from the microphone.

While you are transmitting the tx icon is displayed. To avoid cutting off the first part of your transmission, pause slightly after pressing the PTT button before you start talking.

2) When you are finished speaking, release the PTT button.You can now receive incoming calls. While receiving, the rx icon is displayed.

Transmitting a Call Alert Tone

Your GMR325-2 radio is equipped with a call tone that will be transmitted when the call key is pressed.

To transmit the call alert tone, press the call key.

The tone will automatically be transmitted for a fixed length of time.

Auto Squelch Feature

The GMR325-2 is equipped with an automatic squelch system which shuts off weak transmissions
and unwanted noise due to terrain conditions or if you have reached your range limit.

Monitor Mode Feature

Your GMR325-2 radio allows you to listen for weak signals on the current channel at the press of a key.

To turn ON monitor mode:

Press and hold the volume/monitor up or down key. The rx icon will blink.

To turn OFF monitor mode:

Press the volume/monitor up or down key. The rx icon will stop blinking.

Automatic Power Save Feature

Your GMR325-2 has a unique circuit designed to dramatically extend the life of the batteries. If there is neither transmission nor an incoming call within 2 seconds, your radio switches to the Power Save mode. The radio is still able to receive transmissions in this mode.

KEYLOCK ON/OFF

Press and hold the call key until the "L" appears. After 1 second, the LCD will return to the channel display.
To exit Keylock on mode, press and hold call again.

Note: While in keylock on mode, it will still receive transmissions.

ROGER BEEP

Roger Beep is a BEEP that is sent to notify the end of transmission.
Roger Beep can be heard through the speaker when Key Beep is on.
Roger Beep is transmitted even if key beep is turned off. However Roger Beep will not be heard from the speaker.

To turn OFF Roger Beep: Press and hold the channel/scan up Key while turning on the radio.

Jun 21, 2011 | Motorola Walkie Talkies 2-Way Radio

1 Answer

How do you connect to radios so we can talk to each other they are GMRS602CH audiovox radios


Press the mode button, then the up/down keys to change the channel. They will both need to be on the same channel. If you are using privacy codes, the privacy code will need to be the same to.

Aug 13, 2009 | Audiovox GMRS602CH GMRS/FRS 2-Way Radio 6...

1 Answer

"ON" rubber button on Model PR590 WX no longer responds


something probably got inside behind the button or moisture could have corroded the contacts.  Open it us and use a Q-tip dipped in rubbing alcohol and that will clean the contact.

Dec 16, 2008 | Cobra 22 CHANNEL 2-WAY RADIOS

2 Answers

They just don't seem to work!


I have a new pair of 5500. It seems not working, but I discover that using channel 1 in one and channel 2 in the other they work, the same if using channel 2 in one I have to select 3 in the other, it is like a frecuency error. Maybe is the same with yours.

Feb 14, 2008 | Motorola Talkabout T5500 (7 Channels)...

3 Answers

Instructions on how to change channels on TECHNIKA MODEL TA-13


Basic Instructions for Technika Model TA-13

On this model there are 7 buttons:
Left to Right these are:

PTT, Push to talk on lh side as screen faces you.
Power/Menu
Scan
Call
Down
Up
Torch Light (on rh side)

Assuming you have used the power button to turn on the radio, the default channel after installing the batteries is 1 or else the last channel to be used.

Press the power/menu button once-briefly, (the current channel will flash for about 10 seconds.) Then use the Up and Down arrows to change channel. Wait for the remaining few seconds and the radio will return to normal operation.

Press the menu button twice, the letter H or L will appear and can be altered by the Up and Down keys to change the power level of the radio. I think this is transmit power which may help you avoid infuriating local taxi companies. Switch back to High power when you're about to go out for the night and need a ride.

Press the menu button three times. This will turn off Squelch control and make a terrible din. Not terribly useful unless you want to pick up a really weak signal (or find out where the taxi driver has taken your neighbour.)

An easy way of finding a channel is to press and hold the Scan button and then the device will rotate through the available channels looking for a signal. When someone transmits, the scan will pause and you can capture it by pressing the PTT button for a second or two. I have found this helpful in pairing my radios with other sets, or picking out channels that work with friend's radios.

Finally, Volume control is really simple, just up and down when not in any other mode.

I had the instructions, which I think included a mention of all available channels I'll scan and post them if ever I find them. hope this part helps though.

Jan 29, 2008 | Radio Communications

1 Answer

Locking channels


Try holding the menu key down for a few seconds, you should see a picture of a key or padlock.

Oct 30, 2007 | Jensen JCS-800 14 Channel FRS...

1 Answer

One tansciever is locked (with key icon on screen)


have you tried pressing the Menu key for 5 or 10 seconds?, in mostly or the FRS radios works this way. Good Luck Neto

Jan 18, 2007 | BellSouth 2231TE (22 Channels) 2-Way Radio

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