Tag Archives: radios

More Information on the MURS Radio system

Here is another post by C.E, Harris on the MURS radio.

The FCC created the Multi-Use-Radio Service or MURS by refarming the five Business Pool VHF frequencies formerly known as the VHF “color dot” frequencies from Part 90 to Part 95 of the FCC Regulations to become a new Citizens Band Radio Service for private, two-way, short-distance voice or data communications service for personal or business activities of the general public.

No license is needed. You may operate a MURS transmitter if not a representative of a foreign government; and you use the transmitter in accordance with the rules. No illegal activity, no profanity, be an adult and play nice.…

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Radio Communications

Communications is a subject that has been on my mind for quite a while.  I have finally reached a point at which I have decided to do something about it.  Over the years, I have acquired a bit of radio equipment, so I decided it was ham radiotime to call in an expert and have him take a look.  It turns out that I have a few useful items, a power supply, a two meter radio, 4 FRS (Family Radio Service) radios and a couple of useable CBs.  The rest is pretty much junk.

Today or tomorrow, I should receive a second radio, a Yaesu FT-270 delivered by Fedex. …

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Tactical Radios

radiosI have read several articles on the internet recently advocating ham and other long-range radios.  While I think these are great and very useful, I going to talk about some advantages of short-range radios.  In my opinion, you should divide radios in two classes, strategic and tactical.  Strategic would include long-range two-way communications, television, AM/FM radio networks and shortwave.

Tactical would include the FRS/GMRS (Family Radio Service and General Mobile Radio Service).  The manufactures of FRS radios claim the range is up to 2 miles.  The actual range is closer to ¼ to 1 mile depending on the terrain.  They are small inexpensive two-way radios that operate on 14 dedicated channels.…

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Emergency Radios can Save Your Life

Today I am sitting here listening to my emergency radio.  After trying several, the one I own is the Kaito Voyager KA500.   This a perfect radio for everyday use, emergencies and disasters, it comes with all the features that you need in any emergency situation.

Right now the radio is running on solar power.  The radio has several alternate power sources: solar, hand crank, batteries, USB cable, a built-in rechargeable battery pack and an AC adapter.  I have never put batteries in the radio.  I have had it for years and have always ran it off solar.  The solar works well during the day and it charges the built-in battery for nights. …

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Protecting Electronics with Faraday Cages

I have done a lot of research on Faraday Cages and feel like I am finally beginning to understand them. A Faraday Cage is designed to protect electronics from EMP (electromagnetic pulse) that can be created by high altitude nuclear explosions or solar storms.  See  previous posts on EMP. Some simple examples of Faraday cages are shown below.

  • A booster bag (shopping bag lined with aluminum foil) acts as a Faraday cage. It is often used by shoplifters to steal RFID-tagged (radio-frequency identification) items.
  • The cooking chamber of a microwave oven is a Faraday cage, made to contain the RF (radio-frequency) signals of the cavity magnetron which cooks the food.
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Posted in EMP, nuclear | Tagged , , , , , , | 14 Comments