Saturday, September 11, 2010
Wednesday, September 8, 2010
Ham Radio's Technical Culture
Wow, what a cool read. I got this book the other day from a friend who found it while hitting the yard sales. This book is available on E-Bay and at Amazon.com.Author; Kristen Haring
Table of Contents and Sample Chapters
Decades before the Internet, ham radio provided instantaneous, global, person-to-person communication. Hundreds of thousands of amateur radio operators—a predominantly male, middle- and upper-class group known as "hams"—built and operated two-way radios for recreation in mid twentieth century America. In Ham Radio's Technical Culture, Kristen Haring examines why so many men adopted the technical hobby of ham radio from the 1930s through 1970s and how the pastime helped them form identity and community.
Ham radio required solitary tinkering with sophisticated electronics equipment, often isolated from domestic activities in a "radio shack," yet the hobby thrived on fraternal interaction. Conversations on the air grew into friendships, and hams gathered in clubs or met informally for "eyeball contacts." Within this community, hobbyists developed distinct values and practices with regard to radio, creating a particular "technical culture." Outsiders viewed amateur radio operators with a mixture of awe and suspicion, impressed by hams' mastery of powerful technology but uneasy about their contact with foreigners, especially during periods of political tension.
Drawing on a wealth of personal accounts found in radio magazines and newsletters and from technical manuals, trade journals, and government documents, Haring describes how ham radio culture rippled through hobbyists' lives. She explains why hi-tech employers recruited hams and why electronics manufacturers catered to these specialty customers. She discusses hams' position within the military and civil defense during World War II and the Cold War as well as the effect of the hobby on family dynamics. By considering ham radio in the context of other technical hobbies—model building, photography, high-fidelity audio, and similar leisure pursuits—Haring highlights the shared experiences of technical hobbyists. She shows that tinkerers influenced attitudes toward technology beyond hobby communities, enriching the general technical culture by posing a vital counterpoint.
Tuesday, September 7, 2010
Monday, September 6, 2010
Update; SOLAR FLARE:
It looks like the sun has developed rash. Sunspot group 1105 consists of more than 25 tiny spots scattered across an area some 40,000 km wide. Sascha Somodji sends this picture of the busy active region from his backyard observatory in Krefeld, Germany:
Sunspot group 1105 stands in marked contrast to nearby sunspot 1101, which consists of a single dark core. (Click here to see the two side by side.) If sunspot 1101 looks boring, that's because it is. The sunspot's magnetic underpinnings resemble a simple dipole, and the spot is correspondingly quiet. Sunspot group 1105, on the other hand, is much more complicated with a profusion of opposite magnetic polarities popping up and bumping together. Magnetic reconnection is happening there almost non-stop, causing sunspot 1105 to crackle with B-class solar flares. It is, indeed, a "rash sunspot."
more images: from Steve Rismiller of Milford, Ohio; from John Stetson of Portland, Maine; from Rolf Girssmann of Boostedt, Germany; from Cai-Uso Wohler of Bispingen, Germany;
The Amateur's Code.
Sometimes these rules are forgotten. So I figured it was a good time to post.
The Amateur's Code
The Radio Amateur is CONSIDERATE...never knowingly operates in such a way as to lessen the pleasure of others.LOYAL...offers loyalty, encouragement and support to other amateurs, local clubs, and the American Radio Relay League, through which Amateur Radio in the United States is represented nationally and internationally.
PROGRESSIVE...with knowledge abreast of science, a well-built and efficient station and operation above reproach.
FRIENDLY...slow and patient operating when requested; friendly advice and counsel to the beginner; kindly assistance, cooperation and consideration for the interests of others. These are the hallmarks of the amateur spirit.
BALANCED...radio is an avocation, never interfering with duties owed to family, job, school or community.
PATRIOTIC...station and skill always ready for service to country and community.
Sunday, September 5, 2010
Uniden HomePatrol
I could not believe how technologically advanced this scanner is.
When I get this unit I will write a review.
Here are a couple of videos along with a couple of links.
HomePatrol web-site
HomePatrol Demo
What You will Receive; enter your zip code
Saturday, September 4, 2010
Sun - Diferentional rotation of plasma
This is a great video with the answer.
Wednesday, September 1, 2010
M.A.A.R.C. 2 Meter Net
The Hurricane Watch Net was established in 1965 for the purpose of providing support to the National Hurricane Center during times of tropical storm emergencies. Through our associated network of Amateur Radio Operators, emergency communications support to the NHC is of primary interest.
The Hurricane Watch Net and the operation at WX4NHC at the National Hurricane Center in Miami are manned entirely by volunteers. We activate whenever a system has achieved hurricane status and is within 300 miles of populated land mass or at the request of the National Hurricane Center.
Net operations are conducted on 14.325 MHz.
- To disseminate the latest National Weather Service advisories on active hurricanes in both the Atlantic and Pacific side of the Americas. This includes transmissions to any maritime amateur radio operators that may be in the affected area.
- To gather real-time ground level weather conditions from amateurs in the affected areas and to get these reports to the National Hurricane Center via WX4NHC in a timely and accurate fashion.
For more info on the Hurricane Watch Net visit their web-site; http://www.hwn.org/
Monday, August 30, 2010
TechNet
This is a sample of what I am thinking of in response from of those interested in being a part of the TechNet;
M.A.A.R.C. TechNet.
Topics include the latest news in the worlds manned and unmanned space programs, aeronautics, astronomy events and new discoveries. We will also cover Amateur Astronomy, Model, Mid and High Powered Rocketry, as well as Amateur Radio activities related to space such as monitoring meteor activity, contacting the International Space Station, using Amateur Radio Satellites, EME (Moonbounce) and how to use Orbital Plotting software.
Outside of Space topics we will also discuss;
How to use your radio, Radio Orienteering,Building mini transmitters for ROCA, Antenna Construction,Sound Card-to-Rig Interfaces, Cables and Connectors, DSP Manufacturers, Interfaces Manufacturers, Radio Manufacturers, Packet Radio, PSK31, Radio Programming Cables, RTTY, Ham Radio Software, Networking issues, Operating System issues and many other High Tech Radio-Computer related issues. This is just a few suggestions.
Saturday, August 28, 2010
Tower Climb to 1768 Feet
Friday, August 27, 2010
Earth's atmosphere/ Shrinking
The sun's energy output dropped to unusually low levels from 2007 to 2009, a significantly long spell with virtually no sunspots or solar storms, according to scientists from the National Centre for Atmospheric Research in Boulder, Colorado.
During that period, the thermosphere, whose altitude ranges from about 90-500km, shrank and contracted from the sharp drop in ultraviolet radiation, said the study published in the American Geophysical Union's journal Geophysical Research Letters.
A narrower, less dense thermosphere is good news for satellites orbiting Earth, including the International Space Station, since reduced friction means they can remain aloft longer, said University of Colorado professor and study co-author Thomas Woods.
source
Thursday, August 26, 2010
Tmate (what your SDR always wanted)
This is really cool, A friend sent this to me. We talked about this while on Echo-Link. Seems like the really cool stuff is going on in Europe. Tmate is the most awaited accessory by many users of SDR radio that can not or will not stay without the VFO knob! With a classical tuning knob, the USB interface and the upgradable software, allows the control of main functions of the various SDR software. Intended mainly to allow the use of SDR software without the need to watch the screen of the PC, or when the screen of the PC is crowded by various programs such as LOG or software for DIGITAL operations or CONTEST.
Wednesday, August 25, 2010
Meteor Explosion
“Everything shook. I’ve never been in an earthquake, but it was that kind of a thing.”
Two reports had been registered on the Sydney Observatory ‘Lights in the Sky’ blog page that most likely related to the occurrence. The reports tell of sightings of a daytime meteor between 1.50pm and 2pm on the Tuesday. “A meteor bright enough to be seen during the day may well be sufficiently large to survive the journey through the atmosphere and become a meteorite on the ground. However, unless it was seen to land we are unlikely to ever find out.”
Saturday, August 21, 2010
Friday, August 20, 2010
Isotron Antennas
So here I am looking at different antennas. Anyone of my readers have any experience with the Isotron Antenna?I'm looking to purchase the 75/80.
I did hear from a local ham that they are a good antenna.
I also heard from another local ham that they are not worth a dime.
Isotron Antenna Home Page
HOW TO READ PROPAGATION NUMBERS
The A index [ LOW is GOOD ]
- 1 to 6 is BEST
- 7 to 9 is OK
- 11 or more is BAD
Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.
A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
SFI index [ HIGH is GOOD ]
- 70 NOT GOOD
- 80 GOOD
- 90 BETTER
- 100+ BEST
The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.
Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.
K index [ LOW is GOOD ]
- 0 or 1 is BEST
- 2 is OK
- 3 or more is BAD
- 5 is VERY VERY BAD
The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.
A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
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I am not responsible for any thing that happens to your mental health, computer and all personal property because you visited my site.
This site is a collection of some things sent to me by e-mail, obtained from other blogs and the internet. If there is a picture or quote that is copyrighted to you let me know and I will remove your item .
Thoughts expressed in my blog are just that . I give My Opinion on the many events, products and how too, reported by the media and other web-sites.
Do not use this blog site to obtain weather events or disasters information. What I post may not be correct. Always get information from the proper media, weather (NWS)(NOAA)
Pacific Tsunami Warning Center and USGS sites

