Radio Relay International, an independent amateur
radio messaging organization, has expanded its Digital Traffic Network (DTN)
infrastructure to Puerto Rico. According to the organization, the DTN is a hybrid
mesh network utilizing HF for long-haul traffic and VHF/UHF gateways for local
emergency communications activities. Over the past year, according to RRI, the
group has been providing training to volunteers in Puerto Rico as well as
technical support and one-on-one assistance.
During Hurricane Maria, it says, “one
RRI volunteer alone handled over 2000 welfare messages out of the stricken area.”
The system also makes use of Winlink and says it is fully interoperable and
integrated with other emergency communications resources. RRI also sponsors the
National SOS Radio Network and Neighborhood Radio Watch programs.