frs/gmrs opinion
some time ago i was very active in Frs/gmrs , in my country this service is not regularized so you can use the power that you want , the equipment that you want (there is people using motorola radios gm300 uhf yep those radios pump 45 watts in the frs range and gp300 (i use a dualband when im bored and two radioshack six miles bubblepack radios with a external antenna jack conected to a ham radio dualband ) ,for the purpose that you want , even when this is a telemetry frequency range , the people use this as security radios , for fast food services , even in the south of chile as link between a medevac chopters and the ground personal , these bubble pack radios are a cheap alternative to short distance comms , even when im active i have a radio friend who is in Quintero 25 kilometers from valparaiso i can hear his voice cristal clear with a modified radioshack , in clear places you can make very good contacts in a area of 3 kilometers , but in the forest or in the city are just a toy because with only 0.5 watts you can penetrate concrete or wood , and do you think about how inefficient is the original antenna when is inside a car , solution (note: not legal in the U.S, it will void your warranty ) open the radio and put a BNC conector instead of the original antenna and hook up a uhf magmount over your car roof nice and efficient ,worked well for me , but is best to have a dual bander so you can have two meter ham band , 430 ham band , and of course 462/467 gmrs band . here the frs/gmrs band in the night especially ch 6 and 1 are like cb ,1 is the contact channel , six is the ragchew channel where all the people talk in rounds , even there is a lot of local hams that also transmit there just for fun , the last year we had a simplex repeater on channel 19 mounted on my shack ,also when there are severe weather alerts are rebrocasted via channel 6 at 9:00 pm . so there are infinite posibilities with this little radios an some mods , but in the highway always a CB or a 2 meter ht will be best .
73 from CD2895 from the southest country in the world