Radio Radius
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 MOTOROLA RADIUS CM300 UHF 40W 32CH MOBILE TWO WAY RADIO  US $359.00
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 MOTOROLA RADIUS CM300 UHF 32CH 40W MOBILE RADIO US $349.00
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 NEW MOTOROLA CP200 UHF 4 CHANNEL 4 WATT RADIO RADIUS US $347.98
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 NEW MOTOROLA CP200 VHF 4 CHANNEL 5 WATT RADIO RADIUS US $347.98
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 MOTOROLA RADIUS CM300 VHF 45W 32CH MOBILE TWO WAY RADIO US $330.00
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 MOTOROLA RADIUS CM300 UHF 25W 32CH MOBILE TWO WAY RADIO US $325.00
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 Motorola Radius SP21 UHF Commercial Two Way Radio Walkie Talkie US $325.00
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 MOTOROLA RADIUS CM200 UHF 40W 4CH MOBILE TWO WAY RADIO US $325.00
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 MOTOROLA RADIUS M1225 UHF 20CH 40W MOBILE RADIO US $299.00
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 MOTOROLA RADIUS M1225 VHF 20CH 40W MOBILE RADIO US $299.00
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 MOTOROLA RADIUS CM300 VHF 25W 32CH MOBILE TWO WAY RADIO US $296.00
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 MOTOROLA RADIUS CM200 VHF 45W 4CH MOBILE TWO WAY RADIO US $296.00
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 NEW MOTOROLA CP200 UHF 16 CH RADIO RADIUS CP 200 US $291.00
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 MOTOROLA RADIUS CM200 UHF 25W 4CH MOBILE TWO WAY RADIO US $291.00
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 MOTOROLA RADIUS CM200 UHF 25W 4CH MOBILE TWO WAY RADIO US $290.00
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 NEW MOTOROLA CP200 VHF 16 CHANNEL 5 WATT RADIO RADIUS US $289.99
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 MOTOROLA RADIUS CM200 UHF 4CH 40W MOBILE RADIO US $279.00
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 MOTOROLA RADIUS CP200 TWO WAY RADIO UHF 16CH CP 200 US $272.80
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 NEW MOTOROLA CP200 UHF 4 CH RADIO RADIUS TWO WAY CP 200 US $271.60
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 MOTOROLA RADIUS CP200 TWO WAY RADIO VHF 16CH CP 200 US $271.60
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 MOTOROLA RADIUS M1225 UHF 4CH 40W MOBILE RADIO US $269.00
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 NEW MOTOROLA CP185 UHF 16 CHANNEL 4 WATT RADIO RADIUS US $262.99
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 MOTOROLA RADIUS CM200 VHF 25W 4CH MOBILE TWO WAY RADIO US $262.00
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 MOTOROLA RADIUS CM200 VHF 25W 4CH MOBILE TWO WAY RADIO US $261.00
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 MOTOROLA RADIUS CM200 VHF 4CH 45W MOBILE RADIO US $259.00
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 MOTOROLA RADIUS CP200 TWO WAY RADIO VHF 16CH CP 200 US $254.60
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 MOTOROLA RADIUS CP200 TWO WAY RADIO UHF 4CH CP 200 US $254.60
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 MOTOROLA RADIUS CP200 TWO WAY RADIO VHF 4CH CP 200 US $235.50
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 MINT MOTOROLA RADIUS CP200 VHF 16CH RADIO US $229.00
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 2 MOTOROLA Radius CP200 4CH 2 way radios US $225.00
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 MINT MOTOROLA RADIUS CP200 VHF 4CH RADIO US $199.00
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 MINT MOTOROLA RADIUS CP200 UHF 4CH RADIO US $199.00
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 MOTOROLA RADIUS BPR40 16 CHANNEL TWO WAY RADIO UHF US $198.99
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 MOTOROLA RADIUS CP185 VHF 16CH 5W TWO WAY RADIO CP 185 US $182.00
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 MOTOROLA RADIUS SM50 M43DGC20A2AA VHF 2 WAY RADIO US $175.00
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 MOTOROLA RDX CP110 UHF PORTABLE 2 TWO WAY RADIO RADIUS US $174.54
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 MOTOROLA RADIUS BPR40 TWO WAY RADIO UHF 4W 8CH BPR 40 US $168.99
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 NEW MOTOROLA RADIUS CM200 UHF 40WATT MOBILE 2 WAY RADIO US $165.50
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 MOTOROLA RDX CP110 VHF PORTABLE 2 TWO WAY RADIO RADIUS US $159.54
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 MOTOROLA RADIUS M120 VHF 2CH 45W MOBILE RADIO US $159.00
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 MINT MOTOROLA RADIUS P1225 VHF 16CH RADIO w ACCESSORIES US $159.00
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 MOTOROLA RADIUS SM50 UHF 2CH 40W MOBILE RADIO US $159.00
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 MOTOROLA RADIUS SM50 VHF 2CH 40W MOBILE RADIO US $159.00
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 MOTOROLA RADIUS MAG ONE BPR40 VHF 8 CH TWO WAY RADIO 2 US $158.99
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 NEW MOTOROLA BPR40 VHF RADIUS TWO WAY RADIO MAG ONE US $158.99
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 MOTOROLA RADIUS CP110 VHF 2W 2CH PORTABLE TWO WAY RADIO US $158.69
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 MOTOROLA RADIUS BPR40 TWO WAY RADIO VHF 8CH BPR 40 US $156.99
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 Motorola Radius M1225 VHF mobile radio Lot SJ63 US $151.50
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Mobile Surveillance Trailers
Did you know that a mobile surveillance trailer can aid a lot of entities in various ways? If you didn’t, then it is time that you know. A mobile surveillance trailer is a trailer equipped with gadgets that can collect, store, and analyze data—video, audio, or still images.
Importance
Large construction sites are prone to theft. Theft can be prevented if you have a mobile surveillance trailer. The mobile surveillance trailer can also be used on special events such as parades and sporting events. Moreover, the mobile surveillance trailer is great for law enforcers to monitor situations or conduct investigations. Business establishments and homes can also use a mobile surveillance trailer for parking lot or overall security. Indeed, a mobile surveillance trailer is very versatile and can be excellent for short-term use such as in parades or long-term ones such as in department stores.
Features
The key to a good mobile surveillance trailer is its features. A self-contained unit that is completely portable is the ideal mobile surveillance trailer. The portability factor, especially the trailer design, will allow the unit to be transported easily. It is also good to employ a unit with its own power supply, which can either be a generator or solar panel, although the latter would be ideal as it is soundless and compact.
Because a mobile surveillance trailer is towable, it is important to have a unit that has anti-theft systems—GPS is a must—as well as wheel clamps. Also, the unit should be easy enough to use so that even a single operator can handle all the systems.
The mobile surveillance trailer that you will be using should have weatherproof cameras that can perform a tilt and pan mode. One of the best camera features that your mobile surveillance trailer should have is the ability to track, zoom in, and record moving objects automatically. The ones with 26x optical and 12x digital zoom are best for identification of the subject.
Your mobile surveillance trailer should be able to record night action as clearly as day action. If you want to have a full-area view, it is good to have a telescoping mast.
The best mobile surveillance trailer has modern communication gadgets that allow full-security transport of data to a cellular/radio network even on a 30-mile radius. I may also be ideal for your mobile surveillance trailer to have its own server onboard, which could have high data storage capability and can be accessed remotely but securely using a PC with the proper software and Internet connection.
All these features will ensure that you have 24/7 security whether in your home, business, or on the streets.
What effects does RF (radio) energy have on the body?
Example- a 500w 27Mhz mobile radio operating within 15ft of a person.
That radio can literally fry CB radios with a key of the mike (20ft radius)
The basic effect that is widely understood is due to heating. The tissues like eyeballs are especially vulnerable - think poached eggs. The energy limits (exposure levels) are specified in most countries by regulation. The frequency/wavelength is an issue because the body absorbs more in some ranges. At very short wavelengths (microwave) it is very easy to get enough energy to cause burns or damage the eyes with just a few watts. Looking into the end of a waveguide is hazardous and uninformed.
At lower frequencies the energy density around an antenna is spread out due to the much longer wavelengths. A typical example of an exposure limit using power density is 1mW or less at higher frequencies, and 100mW/cm^2 at 30MHz. This can also be specified as V/m, about 600V/m for 30MHz.
How do you figure this out? Near an antenna at 30MHz there are calculations or direct measurements, but also some regulations allow exemptions for powers below something like 150W (from memory) assuming particular antenna and modulation types in every day use. In Australia there must be warning signs, and engineering controls like a fence or automatic switch off, and an assessment. This is a fairly recent addition to the regulations, probably because of OHS regulations. The ARRL considers 7W as being more or less below the risk levels, but there is also some controversy about these figures.
In my mind there is not much doubt that being 15 feet (about 1/2 a wavelength) from a 30MHz antenna with 500W (continuous power) could be close to the regulation limits. However it is likely SSB speech so that reduces the impact considerably as the average power is more like 80W. This is the relevant power for thermal effects.
It is also outside the allowed power for CB radio (spectrum pollution control) which is also illegal. The US limit is 4W for AM and 12W for SSB. Additionally, it makes little sense, as the range will only be increased if there is severe interference at the receiver, or in unusual propagation conditions, which are also outside the scope of the CB "short range communications". It is probable that such high power is used to talk over other users - a sort of sledge hammer or bullying approach to getting your own private channel.
The link below has a chart showing the exposure limits according to the IEEE (US), and discusses the risks. The discussion of E and H fields (electric and magnetic components) is because in the near field of an antenna (like your example) the ratios of these two components can be different to the far field where the electromagnetic wave is fully formed. This depends on the antenna type. There is also a chart showing some measurements taken near a variety of antenna types, frequencies and powers, but there is not enough detail to find an example for your situation. However below that table (9.2) is a set of guidelines which make sense.
Final appraisal, it is definitely illegal, being more than 40 times the allowed power for CB operation, but probably not really hazardous, with some provisos and uncertainty.. I wonder if there is "CB rage" like road rage?
Oh yes: Now vending machines will give you free wi-fi (Japanator?format=xml)
Radio Radius clip
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