Friday, December 30, 2016

Multi-Use Radio Service - Wikipedia



In the United States, the Multi-Use Radio Service (MURS) is an unlicensed two-way radio service similar to Citizens Band (CB). Established by the U.S.Federal Communications Commissionin the fall of 2000, MURS created a radio service allowing for unlicensed (Part 95) operation, with a power limit of 2 watts. The FCC formally defines MURS as "a private, two-way, short-distance voice or data communications service for personal or business activities of the general public." MURS stations may not be connected to the public telephone network, may not be used for store and forward operations, and radio repeaters are not permitted.

In 2009 Industry Canada (IC) established a five year transition plan which would have permitted the use of MURS in Canada starting June 2014.[1]In August 2014 IC announced a deferral of MURS introduction, as "the Department does not feel that the introduction of MURS devices in Canada is warranted at this time, and has decided to defer the introduction of MURS devices in Canada until a clearer indication of actual need is provided by Canadian MURS advocates and/or stakeholders..".[2]

Dead Drops

Is it true some people plant USB sticks in walls for drop offs or is it a hoax?

The purpose of such a dead drop is described in The Dead Drops Manifesto by Aram Bartholl:

The Dead Drops Manifesto

Dead Drops is an anonymous, offline, peer to peer file-sharing network in public space. Anyone can access a Dead Drop and everyone may install a Dead Drop in their neighborhood/city. A Dead Drop must be public accessible. A Dead Drop inside closed buildings or private places with limited or temporary access is not a Dead Drop. A real Dead Drop mounts as read and writeable mass storage drive without any custom software. Dead Drops don't need to be synced or connected to each other. Each Dead Drop is singular in its existence. A very beautiful Dead Drop shows only the metal sheath enclosed type-A USB plug and is cemented into walls.You would hardly notice it. Dead Drops don't need any cables or wireless technology. Your knees on the ground or a dirty jacket on the wall is what it takes share files offline. A Dead Drop is a naked piece of passively powered Universal Serial Bus technology embedded into the city, the only true public space. In an era of growing clouds and fancy new devices without access to local files we need to rethink the freedom and distribution of data. The Dead Drops movement is on its way for change!

Free your data to the public domain in cement! Make your own Dead Drop now! Un-cloud your files today!!!

Aram Bartholl 2010





Tuesday, December 20, 2016

Question on @Quora: What is the difference between amateur (ham) radio and CB radio?

https://www.quora.com/What-is-the-difference-between-amateur-ham-radio-and-CB-radio?srid=tXNX&share=02bfb587

The future of cb radio


Dave Smith, trucker, CB Radio, Ham radio

It's a famous say that, "The future depends on what you do today." The popular CB radios once enjoyed, became the symbol of success for the means of communication. The user base was so huge during that times, but we can't expect this technology to regain that popularity because latest technologies are hitting the market daily, This rapid innovation has totally changed the scenario for the CB radio future.

Moreover, the users of the radios also have deviated their interest towards technologies. This results from a dramatic change in the usage of the CB radios. But still, there is a hope that CB Radio communication system can't be ignored. There are many loyal users who still want this technology back with a bang but the majority of the users have moved on. Now in this age of Internet, this manual kind of radio service has started to be considered as an outdated means of communication as there are better options with efficient performance available at affordable costs nowadays that are certainly without any kind of restrictions. These features are further reducing the market scope of the CB radios rapidly. There are some reasons that might bring its popularity back to its peak as it was previously in the history. Radios Guide will show some facts that will make this happen if you want to know the details read the full article. If you want to add something or have any query mention it in your comments.

Before going into the details of the CB Radio future, Radios Guide wants you to know some history related to the CB radios. How CB radio came into being, how it was useful, what make them popular and furthermore.

Continue reading the article =>

1 – History

CB radio that we are enjoying today is a result of an innovative idea that was implemented in the U.S.A in 1945. This invention was capable of making the radio facility open to the general public over short ranges for two-way communication. At the infant stage of this invention, the FCC allowed only a limited number of UHF frequencies for this service. It was also coming out to be quite expensive due to which the manufacturers had to stop the further production of this CB radio.

1.1 – How they started

In 1958, the real Citizens Band came into being as the FCC allowed the 27 MHz band to have more of the frequencies to be used by the public. Now the users were allowed to access 23 channels over this frequency range and these devices could now be operated in the AM mode.

1.2 – Legendary Fame

By 1970's, the CB reached its peak of popularity because they had become very common for a localized two-way communication among all the truckers for the purpose of general interaction as well as for the purpose of trade. It also was promoted very positively among the public because of some of the most remarkable movies of Hollywood created during that times.

That times, the oil crisis hit the market, which resulted in a serious shortfall of the fuel supply and prices of fuel touched its peak. To cope with this scenario, United States government had to impose a speed limit for all the drivers, including the truckers. This was the time when the CB radios began to be used more frequently because truckers felt the need of communicating with each other whenever they found the source of fuel somewhere.

The call-sign handles were made by the trucker to hide their identity over the CB network for communicating with the other drivers to inform them about the possible traps that await them on the road. Then gradually the FCC added 17 channels to this band due to the increased demand of the users and its elevated popularity.

1.3 – Popular Magazine S9

Between the 1970s and 1980s, it was the zenith of CB radio, many citizens band-themed magazines appeared. A magazine that took over the time period was S9 CB Radio magazine. It covered hobby radio as well as CB. The same publisher produced a magazine called RADIO! For RadioShack stores in the mid-1990s. There was a vast amount of information in the magazine.

For further details about the History, Read the article "CB radio – A journey from 1970's to 2016"

2 – CB Radio Future

cb radio future CB was the only practical two‑way radio system for the individual consumer and served several subsets of users such as truck drivers, radio hobbyists, and those in need of short‑range radio communications, such as electricians, plumbers, and carpenters, who needed to communicate between the job site and main office. While some users have moved on to other radio services, CB is still a popular hobby in many countries. The 27 MHz frequencies used by CB, which require a relatively long aerial and tend to propagate poorly indoors, discourage the use of handheld radios. Many users of handheld radios (families, hunters, and hikers) have moved on to 49 MHz and the UHF Family Radio Service, those needing a simple radio for professional use (e.g. tradesmen) have moved on to "dot-color". Business Band radios and the VHF Multi-Use Radio Service.

CB is still popular among long-haul truck drivers to communicate directions, traffic problems, and other relevant matters. The unofficial "travelers channel" in most of the world is channel 19, in "emergency" 9 and "truckers" 19 channels). These frequencies may have evolved because tuned circuits work best in the middle of the band, the frequency for channel 19 is the center of the 40-channel US band and other things being equal, signals will be transmitted and heard the farthest. CB there is more associated with hobbyists than with truckers.

CB radio is still a popular pastime for many people around the world, but with the advent of the Internet and mobile phones, it is no longer as popular as it once was. It is still used widely by truckers and is particularly useful in rural areas where phone lines cannot be used.

2.1 – Is CB replaced by modern technology?

Upon the invention and refinement of the cell phone and social network, apps and social media, many loyal citizen band radio users abandoned their CBs for the privacy offered by cell phones. Here's why CBs might make a comeback. The larger challenges CB faces are competition from other means of communication (cellphones, primarily) and property restrictions that make it impossible to install an effective antenna. CB are not completely replaced by Modern Technology, they are still used by many users and in many occupations. A vast community of truckers is using CB radios. Everyone should have a CB radio knowledge. Manufacturers and Government should play their role to stop the obsolescence of CB, they should improve it with technology and enhance the features. They should also make people aware of the benefits of using CB over modern Technology.

2.2 – Government should play role

The government should play its role in saving the CB communication. The government should introduce some schemes in favor of CB radios knowledge. Some License or training programs should be allotted to the public. The general public should be made aware of the benefits of radio communication over the modern technology. CB radios should be modified with the latest technology in terms of design, size, features and functions.

3 – Benefits of CB Radio

CB Radios are very much beneficial in our daily life. With the introduction of new technologies, people are forgetting its benefits, but let Radios Guide remind all the daily life benefits that a CB radio can help you out.

That they are still being used by a lot of people as it makes communication easier and it is always very easy to use. It is also easy to use mobile phones but some people still prefer to use CB radios over the mobile phone when they are traveling. They are readily available in the market today and the ones that are among manufactured now are less bulky than they used to be before. They make communication easy and you will be able to communicate with anyone you want when you are driving. This will make things easier for you.

There are several advantages of using a CB radio. You don't need a license to buy a CB radio and this is why a lot of people prefer buying this device. They are also readily accepted by a lot of people when it comes to communicating devices installed in cars. If you want to know about the activity on the highways then you can get to know all the information through the CB radio. You can get a continuous update about what is happening on the highways and then you can plan your journey accordingly. This way you won't get stuck in any kind of obstruction. So it can be beneficial to all the travelers when they are going to be driving to faraway places.

Another best advantage is that they are cheap. You won't have to spend much on buying these and getting them installed. They are readily available in the market and you won't have any difficulty in finding one. Also, you won't have to think much before buying one. You can even buy one on the internet at a lesser rate as you have the benefit of comparing rates.

3.1 – Warning & Alerts

Helping-hand throughout an Emergency

In the case of any type of emergency, like road closings, departure orders, terrorizations, storms, flood, a CB radio could be very useful. In such cases, a communication is the foremost important thing. This means a user of CB radio can play their role in helping and saving lives of many in an emergency situation.

Assist in Alerts about Weather Conditions

The CB Radios also comprises of emergency as well as weather conditions warnings which are manufactured into the operating system of the radio.

Inform about the Conditions of the Road

A CB radio also benefits the users in sharing and learning about the existing conditions of the roads. The latest info about the road mishaps, traffic congestions, and interruptions can also be communicated to the other road users so that they can alter their plans as per the requirements.

Aware of everything everywhere

You get updates of every certain moment happening around within a seconds, while with new technology (cellular phone, the internet, and other) it takes certain minutes to reach an information. Now you easily communicate with the friends traveling in the different vehicles.

Traffic Updates

You are updated with the traffics on the roads on CB before getting into the traffic.

3.2 – Enjoy without getting traffic tickets

No traffic tickets while driving

You might get a ticket for using a cell phone while driving, but you never heard of anyone getting a ticket for talking on the CB while driving.

Aid for over speeding

It's helpful for those who like over speeding on Highways and even don't want to get tickets, they can easily be updated where they can't get a ticket.

3.3 – Where Cellphone fails CB is still alive

CB works everywhere this even doesn't need a network, while cell phone don't work without network coverage. In an emergency situation or any kind of natural disaster, when all the networks go down, CB will still be alive. This is the best means of communication in any natural disaster or emergency. Radios Guide is giving a live example for our valued viewers.

e.g. The 2010 Chile earthquake occurred off the coast of central Chile 27 February, having a magnitude of 8.8 on the moment magnitude scale, with intense shaking lasting for about three minutes. This caused a big disaster and loss of lives. All the means of communications were down. The military found that the only means of communication that is on line is CB Radios & Ham Radios.

3.4 – No License & free means of Communication

First of all, you've freedom to use a CB in your life. There is no authorization needed to operate everyone can use it very easily. There is no cost of communication in using it.

You use cell phones are there are charges included in it, but when you use CB its free means of communication. After purchasing the device, the user does not require to spend any extra cost of using it. In fact, the cost of a high-tech cell phone is quite higher than a normal CB radio.

3.5 – Easy way to make Friends

You can make your social network strong very easily because it's a two-way communication system, while cellphones need authentication or a valid cell phone number, means you can make friends very easily through CB. You can make friends locally around your area and even around the State or Country.

3.6 – Instruction about the Directions

Usually, the drivers who drive in unacquainted regions consider a CB radio as an outstanding device for receiving correct directions. They may ask other drivers or the users inside the range about the way to get to a specific terminus. This method is quite stress-free than stopping to read a road map and getting to the required place.

3.7 – Locate the Truck Stop & Weight Stations

CB is also helpful for locating the cheapest truck stop, rest areas, restaurants & even you are aware of the nearest weight stations, gas stations or workshops.

CB radio benefits Over & Out

At the last Radios Guide want to mention that, CB Radio future will be no longer bright if you do not play your role in the society. It's the responsibility of everyone to make viral the benefits and usage of CB radios among the people. If we don't play our roles in the society, we can't save CB radio. There are a lot of CB radio benefits in the modern era, but we're not properly aware of. We need to educate the people to use the radio communications.




Sent while drivi

Sunday, December 11, 2016

Trusted Computer System Evaluation Criteria - Orange Book

Trusted Computer System Evaluation Criteria (TCSEC) is a United States Government Department of Defense (DoD) standard that sets basic requirements for assessing the effectiveness of computer security controls built into a computer system. The TCSEC was used to evaluate, classify and select computer systems being considered for the processing, storage and retrieval of sensitive or classified information.[1]

The TCSEC, frequently referred to as the Orange Book, is the centerpiece of the DoD Rainbow Series publications. Initially issued in 1983 by the National Computer Security Center (NCSC), an arm of the National Security Agency, and then updated in 1985. TCSEC was replaced by the Common Criteria international standard originally published in 2005.




https://en.wikipedia.org/wiki/Trusted_Computer_System_Evaluation_Criteria
https://en.wikipedia.org/wiki/Common_Criteria


http://www.commoncriteriaportal.org/

Thursday, November 17, 2016

Modern radios, modems and tennaes


This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. 
IC-M424 vhf marine transceiver is designed and built with Icom's state of the art technology and craftsmanship. With proper care, this product should provide you with years of trouble-free operation.
We appreciate you making the IC-M423/IC-M424 your ra- dio of choice, and hope you agree with Icom's philosophy of "technology rst." Many hours of research and development went into the design of your IC-M423/IC-M424. 




DR-7800 can be ideally used for HF email, for example, over the Winlink network. Externally, it stands out due to its high-resolution OLED display which, among other things, can be configured for waterfall and spectral views. Thanks to its reliability and low power consumption of 3 W, the new modem is also well-suited for distress radio communications and other applications under severe conditions.


http://www.farallon.us/webstore/index1.html?services.html&1
Suppliers of unique Communications, Instrumentation and Navigation equipment...


Wednesday, October 12, 2016

Delay-tolerant networking - Wikipedia

See also rfc4838 & rfc5050

Delay-tolerant networking (DTN) is an approach to computer networkarchitecture that seeks to address the technical issues in heterogeneous networks that may lack continuous network connectivity. Examples of such networks are those operating in mobile or extreme terrestrial environments, or planned networks in space.



Sunday, September 25, 2016

Spectral efficiency - Wikipedia, the free encyclopedia

Spectral efficiencyspectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is utilized by the physical layer protocol, and sometimes by the media access control (the channel access protocol).[1]



Saturday, September 17, 2016

Communication – 5G for Europe: An Action Plan and accompanying Staff Working Document | Digital Single Market

https://ec.europa.eu/digital-single-market/en/news/communication-5g-europe-action-plan-and-accompanying-staff-working-document

5G announcement by FCC

What is key here is unlicensed use of wifi channels.


5G (5th generation mobile networks or 5th generation wireless systems) denotes the proposed next major phase of mobile telecommunications standards beyond the current 4G/IMT-Advanced standards. 5G planning includes Internet connection speeds faster than current 4G, and other improvements.

The Next Generation Mobile Networks Alliance defines the following requirements for 5G networks:[1]

  • Data rates of tens of megabits per second for tens of thousands of users
  • 1 Gb per second simultaneously to many workers on the same office floor
  • Several hundreds of thousands of simultaneous connections for massive wireless sensor network
  • Spectral efficiency significantly enhanced compared to 4G
  • Coverage improved
  • Signalling efficiency enhanced
  • Latency reduced significantly compared to LTE.[2]


Tuesday, August 30, 2016

Ingress Protection Marking, classifies and rates the degree of protection



IPX - 4 splash resistance.

The IP Code, International Protection Marking, IEC standard 60529, sometimes interpreted as Ingress Protection Marking, classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. It is published by the International Electrotechnical Commission (IEC). The equivalent British standard is EN 60529.

 https://en.wikipedia.org/wiki/IP_Code

Thursday, August 11, 2016

“The Internet could crash. We need a plan B”, how about the Intranet?


The Internet could crash. We need a plan B
Danny Hillis addresses this in his TED Talk “The Internet could crash. We need a plan B” (2013). “We have expanded [the internet] way beyond the limits of how it was meant to operate,” he says. “There’s no clear backup system that we very carefully kept to be independent of the internet, made on a completely different set of building blocks.”

And why do we only have one internet? Well, most likely because we’re lazy. “It’s not that hard a problem,” Hillis said. But, “It’s very hard to get people focused on Plan B when Plan A seems to be working so well.”

Tuesday, August 9, 2016

HYPE Labs

alt tag
Hype is an SDK for cross-platform peer-to-peer communication with mesh networking. Hype works even without Internet access, connecting devices via other communication channels such as Bluetooth, Wi-Fi direct, and Infrastructural Wi-Fi.
The Hype SDK has been designed by Hype Labs. It is currently in private Beta for iOS and Android.
You can start using Hype today, join the beta by subscribing on our website.

What does it do?

This project consists of a chat app sketch written to illustrate how to work with the SDK. The app displays a list of devices in close proximity, which can be tapped for exchanging text content. The SDK itself allows sending other kinds of media, such as pictures, or video, but the demo is limited for simplicity purposes.
Most of the documentation is inline with the code, and further information can be found on the Hype Labs official documentation site.

https://github.com/Hype-Labs/HypeChatDemo.ios - GitHub site
https://hypelabs.io/docs/ios/getting-started/ - Documentation

Friday, July 1, 2016

Cydia - Wikipedia, the free encyclopedia

https://en.m.wikipedia.org/wiki/Cydia


Plus http Apache for iOS

Cydia /sɪˈdi.ə/ is a package manager mobile app for iOS that enables a user to find and install software packages on jailbroken iPhones, iPads and iPods. It also refers to digital distribution platform for software on iOS accessed through Cydia software.[3] Most of the software packages available through Cydia are free, but some require purchasing.

Saturday, June 11, 2016

Roundup of Software Defined Radios - rtl-sdr.com

Mobile-friendly - Aug 20, 2014 - The RTL-SDR is still the best 'bang for your buck' software defined radio out there . While it was never ...


http://www.rtl-sdr.com/roundup-software-defined-radios/



Thursday, April 7, 2016

Desktop Intercom 2.1.391 – Broadcast your voice to another Mac or Windows PC.





Desktop Intercom is a simple and intuitive application that allows you to broadcast your voice to another Mac or Windows PC on your local network. You can also listen to the remote location and there is never any end-user intervention required at the remote computer. If you want to keep your privacy, just disable the listen feature at your computer. You can easily access the application via the speaker icon in the menu bar or by a simple hot key.

There is no account registration, sign-in or internet access required. Just start Desktop Intercom on each computer and they will discover each other. Then simply press the 'Talk' or the 'Listen' button to start communicating. It is that easy!



Friday, March 18, 2016

Turn your iPhone into a Web server


Turn your iPhone into a Web server

A new iPhone app called "ServersMan@iPhone" turns the iPhone into a full-blown Web server. The name is said to be a tribute to Sony's "WalkMan.




Saturday, March 5, 2016

AES Standards News Blog » AES70, Audio applications of networks - Open Control Architecture, new publication

AES70-2015 AES standard for audio applications of networks - Open Control Architecture, has been published in three parts.

AES70 defines a scalable control-protocol architecture for professional media networks. AES70 addresses device control and monitoring only; it does not define standards for streaming media transport. However, the Open Control Architecture (OCA) is intended to cooperate with various media transport architectures. 




http://www.aes.org/standards/blog/2016/1/aes70-open-control-architecture-160102


Sent from my iPhone

Open Control Architecture - Wikipedia, the free encyclopedia

AES70 is an open and license-free standard. It may be freely used in products as manufacturers choose. Although AES70 is nurtured and promoted by the OCA Alliance, membership in the Alliance is notrequired in order to use AES70.




Sent from my iPhone

Tuesday, February 23, 2016

WIRED: Palm-Sized Device Lets You Call and Text Off the Grid


Palm-Sized Device Lets You Call and Text Off the Grid
WIRED

Beartooth has a new device that lets you remain in touch with your fellow adventurers even when you're wandering out of cellular data range. Read the full story


Shared from Apple News



Sent from my iPhone