ZONE 2

Algeria

Anguilla

Antigua & Barbuda

Aruba

Barbados

Bermuda

British Virgin Islands Tortola

Cayman Islands

Dominica

French Guyana (French West Indies)

Grenada

Guadeloupe (French West Indies)

Guyana

Haiti

Jamaica

Martinique (French West Indies)

Montserrat

Netherlands Antilles

Nicaragua

Panama

Saint Barthelemy (French West Indies)

Saint Martin (French West Indies)

Senegal

St. Kitts & Nevis

St. Lucia

St. Vincent & the Grenadines

Sudan

Suriname

Trinidad & Tobago

Turks & Caicos Islands

ZONE 1-7

Albania

Andorra

Austria

Belarus

Belgium

Bulgaria

Canada

Chatham Islands

China

Croatia

Cyprus

Czechia

Denmark

Estonia

Finland

France

Georgia

Germany

Gibraltar

Greece

Greenland

Hungary

Iceland

Indonesia

Ireland

Israel

Italy

Kazakhstan

Kuwait

Latvia

Liechtenstein

Lithuania

Luxembourg

Malaysia

Malta

Moldova

Netherlands

New Zealand

Norway

Peru

Philippines

Poland

Portugal

Puerto Rico

Qatar

Romania

Serbia

Slovakia

Slovenia

Spain

Sweden

Switzerland

Thailand

Tunisia

Turkey

US Virgin Islands

Ukraine

United Kingdom

USA

Uruguay

ZONE 6

American Samoa

Argentina

Armenia

Australia

Azerbaijan

Belize

Bolivia

Bosnia & Herzegovina

Brazil

Chile

Christmas Island (Australia)

Cocos Keeling Islands (Australia)

Colombia

Costa Rica

Democratic Republic of the Congo

Easter Island (Chile)

Ecuador

Egypt

El Salvador

Fiji

Ghana

Guatemala

Guernsey

Honduras

India

Isle of Man

Japan

Jersey

Jordan

Kosovo

Kyrgyzstan

Lesotho

Macao

Mexico

Monaco

Montenegro

Morocco

Mozambique

North Macedonia

Oman

Palestine

Paraguay

Russia

Samoa

Saudi Arabia

Singapore

South Africa

South Korea

Taiwan

Tanzania

United Arab Emirates

Vietnam

Zanzibar (Tanzania)

While Global Radio Systems (PTT/POC) and hybrid solutions integrating VHF or DMR offer unparalleled communication capabilities, traditional VHF and DMR-only devices come with inherent limitations that can restrict operational efficiency.

VHF devices operate on line-of-sight principles, meaning their range is significantly affected by obstacles such as buildings, mountains, and dense urban environments.

This makes them ideal for short-to-medium-range communication but unreliable for long-distance or global operations. Additionally, VHF devices require dedicated infrastructure, such as repeaters and base stations, to extend coverage, increasing costs and logistical complexity.

Moreover, since VHF frequencies are limited and often regulated, interference and congestion can be an issue, especially in highly populated areas or during large-scale operations.

DMR (Digital Mobile Radio), while offering enhanced security, better audio quality, and extended battery life compared to analog radios, still faces similar range limitations as VHF.

Both VHF and DMR systems require licensed frequencies, meaning organizations must comply with strict regulatory requirements, which can be time-consuming and costly. Additionally, DMR infrastructure must be deployed and maintained, requiring significant investment in base stations and repeaters.

These factors make DMR suitable for industrial sites, security operations, and emergency services in localized areas but impractical for organizations requiring wide-area or national and international communication.

By contrast, PTT/POC and hybrid solutions eliminate these issues by leveraging existing cellular and Wi-Fi networks, removing the need for dedicated radio infrastructure and frequency licensing.

Users can communicate instantly and globally without concerns about signal loss due to terrain or distance.

The integration of VHF or DMR with PTT/POC ensures redundancy, allowing seamless switching between networks when cellular or radio coverage is unavailable.

This flexibility makes hybrid communication systems the superior choice for mission-critical industries that demand reliable, scalable, and cost-effective communication solutions