Two-Way Radio Support

Q. I need to order a part.

A. We no longer sell or service these devices. If you need assistance finding replacement parts, please refer to a third-party seller such as amazon.com, eBay, or other retailers.

Q. I am receiving static on my GMR2638-2.

A. Squelch cannot be changed. Try changing the channel and sub-code channel to try and resolve the issue.

Q. I am experiencing static on my GMR3040 Series, GMR3740 Series, or GMR3799 Series.

A. With any type of wireless product, there is always the chance of some sort of interference. Try activating a Sub/Privacy Code to your channel.

-Press MENU to access your radio’s advanced functions.

-Additional presses of MENU will advance you through the menus until exiting to “Normal” operating mode.

-Other methods of exiting the Menu function are:

Press and hold MENU again.

Press any key except CH▲ CH ▼ or VOL▲VOL▼ and wait 10 seconds until the unit returns to “Normal” mode.

-Sub Code each of the channels 1-22 may have any one of the codes, OFF, or 1-121 selected.

-Code “OF” (OFF) indicates no Sub code selected, and your radio can receive a signal regardless of the code settings of the transmitting radio.

-Press MENU to enter Menu mode. The subcode indicator flashes.

-Press CH▲ / CH▼ key to increase or decrease the code number displayed.

-You can also select “OF” (OFF) at this stage.

-Press MENU to exit Menu mode.

-Press any key other than CH ▲ / CH▼ or VOL ▲ / VOL▼, and the radio returns to Idle mode in 10 seconds.

Q. Do I need a license for FRS channels?

A. You DO NOT need a license to operate on these channels.

Q. When should I recharge my battery?

A. The proper technique when using your radios is to allow the battery to completely deplete before recharging. If you do not, the battery will recall the partial charge and only charge up to that point the next time around.

Q. What is the JIS scale?

A. The JIS scale measures water resistance with levels ranging from 0-8.

JIS-0 – No special protection

JIS-1 – Vertically dripping water shall have no harmful effect (Drip resistant 1)

JIS-2 – Dripping water at an angle up to 15 degrees from vertical shall have no harmful effect (Drip resistant 2)

JIS-3 – Falling rain at an angle up to 60 degrees from vertical shall have no harmful effect (Rain resistant)

JIS-4 – Splashing water from any direction shall have no harmful effect (Splash resistant)

JIS-5 – Direct jetting water from any direction shall have no harmful effect (Jet resistant)

JIS-6 – Direct jetting water from any direction shall not enter the enclosure (Watertight)

JIS-7 – Water shall not enter the enclosure when it is immersed in water under defined conditions (Immersion resistant)

JIS-8 – The equipment is usable for continuous submersion in water under specified pressure (Submersible)

Q. What is an IP Rating Code (International Protection Rating)?

A. The IP code is commonly used by business radios, and it contains a rating for resistance to both liquids and solids. With radios, solids typically refer to dust and other fine particles, but the IP code is designed to include larger objects. An IP rating has two digits, “IP54” for example. The first digit (5 in the previous example) refers to resistance to solids. The second digit (4 in the previous example) refers to resistance to liquids.

Solids Resistance Levels (First Digit) The following is the numeric resistance level, and the types of solids that are resisted at that level.

0 – No protection against contact and ingress of objects

1 – Any large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part (>50 mm)

2 – Fingers or similar objects (>12.5 mm)

3 – Tools, thick wires, etc. (>2.5 mm)

4 – Most wires, screws, etc. (>1 mm)

5 – Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact

6 – No ingress of dust; complete protection against contact

Q. What are Liquid Resistance Levels? 

A. (Second Digit) These are like the JIS standard (above).

0 – Not protected

1 – Dripping water (vertically falling drops) shall have no harmful effect.

2 – Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15 degrees from its normal position.

3 – Water falling as a spray at any angle up to 60 degrees from the vertical shall have no harmful effect.

4 – Water splashing against the enclosure from any direction shall have no harmful effect.

5 – Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects.

6 – Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects.

7 – Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).

8 – The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.

Q. What are common frequencies that I can try to listen to?

A. Mobile Stations

Small Base Stations operating in the simplex mode

462.5625 MHz

462.5875 MHz

462.6125 MHz

462.6375 MHz

462.6625 MHz

462.6875 MHz

462.7125 MHz

Mobile Stations

Base Stations

Mobile Relay Stations

Fixed Stations

462.5500 MHz

462.5750 MHz

462.6000 MHz

462.6250 MHz

462.6500 MHz

462.6750 MHz

462.7000 MHz

462.7250 MHz

Mobile Stations

Control Stations

Fixed Stations in a duplex system

467.5500 MHz

467.5750 MHz

467.6000 MHz

467.6250 MHz

467.6500 MHz

467.6750 MHz

467.7000 MHz

467.7250 MHz

Q. Do you offer repair of Two-Way Radios?

A. If under warranty, we will send a replacement upon receipt of shipping payment. If no longer under warranty, we do not offer repairs of Two-Way Radios anymore, and you would need to make a new purchase.