If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
Most of you here are probably already aware of the network of autonomous low power radiation monitors, uRADMonitor - presented in this long project log. Besides these attributes, the units are small, low weighted, running on a direct Internet connection, so you don't need a computer to upload data.
Also one of the important characteristics is the detectors use the same tubes, checked against a common reference. So the numbers resulting from all the measurements you see on the world map, can be compared to others in the network. The CPMs get to have a good meaning, but also the absorbed dose approximation, that can be compared to indications of other units commercially available.
The uRADMonitor network is constantly expanding and a new unit went online in Massachusetts. Here are the initial and the current values registered by this unit:
And the nice constant voltage on tube:
For those interested in getting a unit, there's one currently listed on Ebay for a very low price, or you can get a unit here. Your interest and support for this project is highly appreciated, after all this is an ongoing effort resulting in the first global civilian radiation surveillance network, an accomplishment for the benefit of us all.
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
Moving from manually built prototypes to an industrial production line, is a huge step especially for a project in an incipient phase, like uRADMonitor. Yet, with strong determination, obstacles melt away, opening the path for the first civilian environmental surveillance network, available to everyone, at anytime, to offer real time data on radiation level trends all around the Globe. One of the important characteristics is the detectors use the same tubes, checked against a common reference. So the numbers resulting from all the measurements you see on the world map, can be compared to others in the network. The levels measured in CPMs get to have a good meaning, but also the absorbed dose approximation, that can be compared to indications of other units commercially available. But more on this later.
To read more on the project status access this link:
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
Exciting times for this project, each day brings something new from the Chinese factories building the first PRO uRADMonitor units. Here are the rubber gaskets that will make the enclosures rainproof: More here:
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
Not yet. For now the case will be rainproof, with the same requirement of mounting it with the connectors at the bottom. I feel it is too complicated to waterproof the connectors in this stage of the project, and brings little gain.
A new revision, model A2 is now available. It will go in parallel to the previous model A, but in limited numbers. It replaces the internal DS18B20 sensor with the BMP180, to keep an eye on the barometric pressure as well.
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
To comply with the requirements of the HackAday.io “send me to space†competition, I’ve made a short video as an introduction to the uRADMonitor project.
The video presents only a few succinct details, but for more information you can read the additional articles on the uRADMonitor blog. And don’t forget to vote it on HackADay.io (by giving the project a Skull vote) on this link:
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
They are about to get here . I will post some pics later this week, or the next week, as I get them.
The 7th uRADMonitor detector in the US went online recently and is transmitting from Orlando, Florida. This is one of the newer A2 revision units, that were available in limited quantity a few weeks ago, details on:
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.