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#22
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You seem to be the only poster in this NG w/o a sack of crap under the
skull. Could you please answer my question. I just posted it on a uk ng. I am in the US though. I need to establish an absolutely reliable line of verbal communication between two stationary points separated by about a quarter mile. It takes me under 10 min to walk the distance. The place is located downtown a middle size US city. I have tried to communicate via a Microsoft messenger. It works but so far I haven't been able to make it reliable. The conversation breaks down. I am sure I will fix the problem eventually but I need a backup system anyway. I have tried a walkie-talkie T5950 by Motorola. It is the most powerful I could find at Radio Shack. It is advertised as capable of maintaining communication over 5 miles. In fact it barely covers my distance because of the interference by residential and industrial structures. It operates at its limit capability, there is a lot of static and as a result it is also unreliable. I turned my attention to CB radio. There are hundreds of systems on the market. I have NO background in the business. The money is no object but I don't want to be extravagant. My needs are simple--to be able to talk on demand any time. I don't want extra features of any kind. What power output do I need? What kind of antenna? One office is located on the fifth floor of a concrete building, the counterpart is on the second floor of a century old brick building. I would appreciate ANY suggestions. I speculate that among people who lurk in here there are dealers promoting their products. I would appreciate them staying clear. I would greatly appreciate opinions of people with PERSONAL experience. Thanks. |
#23
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I need to establish an absolutely reliable line of verbal communication
.... I have tried a walkie-talkie T5950 by Motorola. It is the most powerful I From what I can find on the web, this radio only puts out 1W, which is not much. Handheld radios can legally go up to 7W, though very very few go above 5W. If your communications are possible but poor at 1W, they would probably be acceptable but maybe not crystal clear at 5W (you will not get 5X better signal because when you double your power, your signal only improves 1.5X). The problem with consumer-grade radios is they seldom tell you the power output on the box or bubble pack, so you may have to do some research to find radios that do 5W. When they say "6 miles" or whatever on the package, that is completely meaningless. Be aware that only the 1/2W (500mW) FRS radios are license-free. Your current radio and any other radio like it that puts out more than 1/2W are GMRS radios, and require you to obtain an $80 license from the FCC in order to legally operate them. Since the FCC will not issue a license to a business, one person at each of your locations will need a license (unless you are related; family memebrs can share GMRS licenses). If you don't want to sink $160 into GMRS licensing (the licenses are good for 5 years), you can look at license-free MURS radios. These radios only go up to 2W though, so I'm guessing they will not have the power you need. Also, the radios themselves cost $100-$200 each. Most CBs only put out 4W and CB has other issues too (interference from CBers three states away). If you can find a couple of inexpensive CB radios that do SSB (not all do, read the specs carefully!), you get 16W of power in SSB mode. That would probably do the trick though you might find yourself changing channels once in a while to get away from interference. What power output do I need? What kind of antenna? I think the simplest solution is to find a pair of 5W GMRS or 2W MURS handhelds that have detachable antennas. If these still can't make the distance, you can purchase aftermarket antennas. These will be long and ungainly, but will about double your performance over the stock stubby antenna. When you look at aftermarket antennas, try to get one that advertises a 5/8 wavelength element, as 5/8 has more gain (=better signal) than the more common 1/4 wavelength element. Aftermarket antennas can be found at a commercial radio shop (the place where police depts buy their radios) or at a ham radio shop. Make sure you get antennas tuned to 462-467MHz for GMRS or 154MHz for MURS, or you will fry your radios the first time you transmit. Hope that helps! |
#24
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Steveo wrote:
(I AmnotGeorgeBush) wrote: From: (Steveo) Now that you made me think of it, the rec.radio.cb death pool managed to not make anyone any money last year. Guess we're gonna have to re-prioritize the order of probability regarding who is most favored to assume room temperature in 2005. I can only assure any fellow radio operator a good time, or bad. If you come around me with malice in mind, I can't be responsible. If you come around me with your hand-shake out, we'll have some fun. Nothing new. You sure you ain't got no southern blood in ya'? You cotton with the same hospitality. We're simple folk. I was born in West Virginia by gawd. Does it really show? ![]() you really want to know ![]() |
#25
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![]() "user" wrote in message ... I need to establish an absolutely reliable line of verbal communication ... I have tried a walkie-talkie T5950 by Motorola. It is the most powerful I From what I can find on the web, this radio only puts out 1W, which is not much. Handheld radios can legally go up to 7W, though very very few go above 5W. If your communications are possible but poor at 1W, they would probably be acceptable but maybe not crystal clear at 5W (you will not get 5X better signal because when you double your power, your signal only improves 1.5X). The problem with consumer-grade radios is they seldom tell you the power output on the box or bubble pack, so you may have to do some research to find radios that do 5W. When they say "6 miles" or whatever on the package, that is completely meaningless. snipped Hope that helps! I cannot thank you too much. I will have to study your answer and may have a few more questions. Yesterday I tried to apply for a FCC license for a GM radio as them call it. I could not find GMRS category. I got lost in the application because the system kept asking me about the latitude and longitude of my place which I have to investigate and there were other errors/ contradictory answers I could not even properly understand. I can spend as much as necessary on this line of communication, provided it is convenient and reliable. Money is no object. Thanks. |
#26
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#27
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(I AmnotGeorgeBush) wrote:
wrote: Speaking of gators, a 9 ft 8 inch gator ate some dude two days ago down here in a retention pond. Authorities are looking for the residents who regularly fed the thing (extremely illegal and they do enforce it). In addition to the dead guy's forearm, recovered in the gut of the bull gator was plenty of store-bought chicken and beef. Dammit man!! Ha! Better than Woo's pigs disposing of ya. Do they eat the clothes too? When you dump a body to Woo's pigs, they're clothed sometimes. Dude,,I can relate. Visitors think it's cute as hell when the Blue-Ticks lick their hands through the cages. They would **** if they knew the hounds were checking their taste. That's another reason to wash your hands after you unpack. ewww |
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