10 Mile Two Way Radio

I'm looking at buying a set of Two-Way radios for my small consulting business. I would like as long of range as possible since I know you get less distance due to building obstructions & weather conditions. Both radios should have a recharging base they plug into. I've seen up to 18 mile GMRS radios but would like to see if I can find longer range. I can also apply for a FCC license if needed.

I'm looking into this as an alternative to wireless phones since I would only be speaking with one other person 95% of the time (my dispatch). Using these type of radios would cut down on the need for a larger calling plan with phones since most of my clients are within the same 5-10 mile range. I don't need private/encrypted channels but the FRS channels around here are too busy with other users.

Use of GMRS requires a license. In a business, *each person* using the radios would require their own license. Businesses cannot get a GMRS license as they are non-individuals. "Consumer grade" GMRS radios with those false 18 mile range claims will not work for the application you need. Range is typically 2 miles or less.

With a base station, and a mobile radio, you could swing this range with GMRS. *Maybe* a base and a handheld would work. You need that antenna height.

OR, you could go with something in the Business Radio service. A repeater would be needed. You probably need to consult with a reputable communications company and have them set you up. Equipment costs, licensing, and repeater lease fees could get costly.

2007-05-13 22:03:30 by rlucas7298

plane. Since no video system I know of will perform reliably at 10 miles at low altitude, I installed two radio systems in the plane and flew the ...

The seller of this production say that range of it is 10 mile is it true? ?
Motorola FV300R Talkabout 10-Mile Two-Way Radio with Charger has a range of up to 10 miles for indoor and outdoor communication. These radios come with rechargeable NiMH batteries and an AC adapter for easy charging. Its featherweight, compact design is ideal for campers and hikers, and its rugged structure can survive the toughest treatment.

With 22 channels and the standard scan feature, this two-way radio makes it easy to stay in touch while you are out and about.

NOTE: GMRS channels require an FCC license for use. Details for obtaining license are included in manual.

Features:
* Features 22 channels
* Broadcasts on both FRS and GMRS channels
* Up to 10 mile range under optimum conditions
* Scanning feature easily finds active channels and codes by searching all frequency combinations
* Ten audible call tones grab the attention of your family and friends before you start speaking
* Talk-confirmation tone signals you've finished talking
* Keypad lock prevents your personalized settings from being inadvertently changed
* Low battery alert reminds you when batteries are running down

Box Contents:
* Two FV300R 2-Way radios
* Quick-release belt clips
* NiMH rechargeable battery packs
* AC battery charger
* User's guide
56 minutes ago - 3 days left to answer

All you will get typically is 2 miles or so. This is maximum range under very controlled conditions. Mostly marketing hype.

2008-10-25 13:18:19 by reza3267876

Price: $34.99 $27.82

Battery save feature
22 Channels
Up to 10 mile range
15 level digital volume
Includes 2 radios, 2 NiMH rechargeable battery packs. 1 AC adaptor with Y connector.

I'm looking into buying a two way radio for my next skiing trip so I can keep in touch with where my family is on the slopes while I go off piste with my friend.
I want a radio with the largest range but I'm not sure what the largest range is without a licence in the UK and Europe.
Can anyone fill me in on whats what with radio laws in UK and Europe etc and recomend a good set of two way radios that isn't gonna cost the earth?
I was thinking something with a 10 mile range?

10 mile unlicenced? Not a hope in hell.

I have a cheapy pair of PMR446 (no licence req'd) for skiing. As long as we're both on the same side of the mountain (or opposite sides of a valley) then I've never had a problem. Range is about 3 or 4 miles across a valley.

I won't bore you with the laws and regulations, but unlicenced 446MHz radios have a power limit of 0.5W. This can be tweaked by someone who knows what they are doing ;-)

Google for PMR446. Have fun off-piste!

2007-08-29 04:00:43 by Jonathan

Price: $199.99 $140.54

Waterproof construction, includes lanyard and belt clip
Radio specs: 14 FRS channels for 2-mile range, 7 GMRS channels for 5 mile range, 38 subcodes per channel, hands-free VOX,
GPS specs: 12-channel, WAAS-enabled receiver, up to 500 waypoints, trip computer with speed tracking
Combination two-way radio and GPS receiver
Beam location to another Rino user within a two-mile range using the FRS spectrum

I'm looking to buy two way radios for my friend and I to use at a music festival. I would like ones with a good range (8-10 miles) so I can use them for other things. I'm on a limited budget. What set do you suggest?

8-10 miles on a budget, better be a big budget or you live on a hill.

Any of the FRS or GMRS radios that marketed at common retail outlets will have claims of 7, 10 or even 15 mile range. The only way this is possible is if both people are on mountains with a clear line of sight between them. Altitude is king.

Down on the ground, getting 1 mile reliably is pretty good. Half that if there are buildings in the way or you are in vehicles.

The only way to get a reliable range of 10 miles (without standing on a mountain) is to use radios that communicate through a repeater. This is a special type of radio that rebroadcasts your signals. they are normally placed on a mountain or tall tower (the whole altitude thing here). A repeater will cost lots of money. Lots. Forget it.

Get a cheap set of FRS radios for the festival. Since it is likely that there will be others using FRS radios at the festival, you may want to spend a few extra $$ to get the radios that have CTCSS, often called "privacy codes". Dont let the name fool you, it provides no privacy to your communications. What it Does do is block out other people so you dont have to hear them.

As for what radios I use:
MURS (vhf work radios)
FRS (handy on outings)
GMRS (uhf communications with my family. I have a repeater on a 50' tower at my house, good for 15-20 miles)
HAM (as a hobby, talked all over the world)

2009-06-27 19:39:25 by pianoninja98

stations are monitoring the radio signals from the bear. Station B is 10 miles directly east of station A. On Mon, Station A measured the direction to the bear at N43degreesE, and station B at N30degreesW. Threee days later the directions to the bear from the two tracking stations were n24degreesE and N30degreesW, respectively. How much farther from station B was the polar bear after those three days? Please show me the calculations. Note I did not know how to do the symbol for degrees.

You are studying trigonometry and you have just learned about the Sine Law:

a/Sin(A) = b/Sin(B) = c/Sin(C)

Where A, B, and C are the three angles of a triangle
and a=BC, b=AC, and c=AB are the opposite sides.
(a is opposite to A, b is opposite to B, and c is opposite to C.)

Draw the two triangles:
Station A, Station B, and Polar Bear C at the beginning
and again after three days.

One side and two angles are given in each triangle.
Read carefully! North 43 degrees East means that side AC makes makes an angle of 43 degrees on the East (right) side of a line from A pointing north (Perpendicular to AB, with B pointing to the right). So the angle BAC is 90-43=47 degrees.

In each triangle you must first find the 3rd Angle (C) since you are given just angles A and B and side c=AB. To use the Sine Law you need a side and the OPPOSITE angle. Remenber that all three angles add up to 180 degrees to find that third angle.

Finally you can use angle A to find side a=BC in each triangle:
a/Sin(A) = c/Sin(C) becomes a/Sin(47)=10/Sin(73) in the first tirangle, which you should be able to solve easily, and a similar equation for the second triangle.

Reread the question. You are asked for the difference between these two values for a.

2009-04-07 09:44:48 by tamluv2tch