Hello! My name
is Steve, N2DH

I am US Licensed Radio Amateur who wants to connect with others to build out a digital network across America.



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Frequently Asked Questions

Just to help get us all on the same page.

What Is the Emergency Ham Network?

The EHN is currently a concept for creating a National Digital Ham Network. This Network would be built by attracting a group of people to work together towards this common cause.  The formation of this group is expected to achieve three main goals:

  1. The formation of a group of operators who will work together to create a fully digital national network operating 24/7 for their enjoyment and the greater good of amateur radio.
  2. This network will drive significant traffic on frequencies currently underutilized which in turn will help protect that spectrum from being taken back by the FCC.
  3. To offer a 24/7 off grid digital network available in time of Emergency should the cell phone and internet networks fail.

Learn More

What is the Emergency Ham Network Road Map?

We started in November 2021 and are still in the feasibility/planning phase. We hope to go live with this website and more media coverage in January 2022. An optimistic goal is availability of the Emergency Ham Network Smart Phone System prototype by the Summer of 2022 and the gradual publication of a candidate architecture with a draft plan for the Network by the fall of 2022.

Latest Blogs

19 April 2022
EHN Blog
The term "Peoples Network" has been used by some new players in the emerging private network infrastructure termed low-power wide-area networks (LPWAN) or the older term low power wide Area (LPWA). These have re-emerged as a growth segment because of...
26 March 2022
EHN Blog
Winlink is a hard topic to discuss in part because of its complexity but also because it can be used and configured in many ways. It is available 24/7, 100% reliable, functions without the Internet and provides communications across the world, BUT th...
11 March 2022
EHN Blog
This was the headline in 2014 when a small group of engineers began communicating with a 36-year-old space probe. The Planetary Society details the fascinating story of how modern communications systems recreated the complex control systems needed to...
08 March 2022
EHN Blog
The magic of the cellular system is the division of a coverage area into small cells. This allows for low power and extensive frequency reuse across the cells, so that many users can use their cell phones simultaneously. Prior to cellular networks pe...
24 February 2022
EHN Blog
The planned launch of LightCube, a CubeSat, will be the latest man-made object in the sky that will flash on command. The command will be a coded radio transmission sent from something as simple as your handheld operating in the licensed Ham bands. T...
02 February 2022
EHN Blog
DAPNET is a mature once popular Paging system that has evolved into a resilient network suitable for short messages. It would be an ideal candidate for the Emergency Ham Network which could offer redundancy with the Internet for operation in times of...
11 January 2022
EHN Blog
APRS would be an ideal candidate to travel over a new digital network which has the potential to offer higher bandwidth and connectivity. Connection to the EHN would likely be through some form of IGate and supporting network so that local APRS data ...
20 December 2021
EHN Blog
63 years separate the first voice message from a satellite to the almost total world coverage of the Internet from Starlink. Such technology is born from men like Elon Musk who believed in an idea and helped others follow. They did not accept the sta...
14 December 2021
EHN Blog
Buying used UHF and Microwave commercial base stations that are supported by groups like AREDN will provide point to point and multi-endpoint systems for as low as $100. This is possible because the firmware can be exchanged to make them compatible w...
12 December 2021
EHN Blog
For radio packet network the use of a mesh network topology can provide longer range and tolerance to interference. Such systems are not commonly used in Ham Radio, AREDN is the notable exception. Low-cost commercial mesh systems have become popular ...
11 December 2021
EHN Blog
goTennaMESH offers a deployed network of mesh communities that would integrate into an Emergency Ham Network. This would allow the public to communicate between local networks. A win for the communities, the radio operators and a step closer to a via...
10 December 2021
EHN Blog
The NPR system would allow a single master station connected to a high-speed backbone, to serve up to seven clients through TDMA and achieve data rates of 65Kb/s on 70cm, economically priced this might be the solution for local clusters to be interco...
10 December 2021
EHN Blog
LoRa is a system finding some uses in Amateur Radio, but this is limited to operation over poor links and lower bandwidths. It does seem a good fit for point-to-point links on the 920MHz. band where its spread spectrum potential can be used. LoRa (fr...
07 December 2021
EHN Blog
The 33cm band offers unspecified bandwidth for unspecified digital transmissions using conventional modulation types as well as unspecified Spread Spectrum modulation although limited to 10W pep to the antenna. In my reading of Part 97 the 33cm or 90...
06 December 2021
EHN Blog
Despite the need for approval, the lower part of the 1.25M band could offer interesting possibilities for digital links particularly in urban areas as the frequency has good penetration and coverage although high gain antennas will be physically larg...
06 December 2021
EHN Blog
I have been doing my due diligence on the legality of operating the imagined Emergency Ham Network (EHN). The short answer is yes if there is an emergency and probably if there is not. Since all licensed radio operators have passed examinations, we a...
29 November 2021
EHN Blog
As an atypical white male in my 60's I struggle to remain connected with young people, I read about Millennials and what our experts predict will result from the changes in society. The best I can conclude comes in the form of the following two quote...
24 November 2021
EHN Blog
  Overview This document describes a possible peripheral for the imagined Emergency Ham Network. This could be the killer application for the network or just some ideas that is looking to find a problem. Only by writing this paper can that quest...
23 November 2021
EHN Blog
We talked about the value in using the EHN 24/7 even without an emergency, primarily because of the "use it or loose it" theory on our licensed spectrum. But what would we use for traffic, how can we give some reward to all our contributors who would...
22 November 2021
EHN Blog
Back in the day, more precisely the 1960's Amateur Radio Operators provided a valuable service during the Vietnam war. By coupling the local phone system to their transceivers Hams were able to allow American soldiers "free" phone calls home. Usually...

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I am US Licensed Radio Amateur N2DH who wants to connect with others to build out a digital network across America. Using Mesh Networks and Packet Networks.

Email

n2dh@emergencyham.net

Map Street

Newark, NJ 07107

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