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2 way alarm range

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ciaksaiong 
Member - Posts: 9
Member spacespace
Joined: June 03, 2007
Location: Malaysia
Posted: June 03, 2007 at 3:47 AM / IP Logged  

I have just bought a python 990sst .. it does have great range in the open air.. but once i am indoor or if there a a building blocking the car then my range would drop DRAMATICALLY ..i always see u guys saying your 2 way alarm has great range especially for compustar.. I am just wondering izt normal for the range to drop so much when a building is blocking the car For my system it is sometimes less then 50 meters if a buiding is blocking it.. any advice from u guys would be much appreciated Thanks

dswift 
Copper - Posts: 396
Copper spacespace
Joined: March 12, 2007
Location: United States
Posted: June 05, 2007 at 11:33 AM / IP Logged  
Well it all depends where you are. Don't forget the FCC allows us to use so and so mhz while creating traffic as well as accepting traffic. where is your antenna located? Maybe get your antenna swapped to see if that fixes your issue. A building will affect the range. Sorry to say. But yes. heh No if you had a compustar. hah. their second gen is coming out soon baby! can't wait for that doodie. yeah boy! 
"dont ground out!"
ciaksaiong 
Member - Posts: 9
Member spacespace
Joined: June 03, 2007
Location: Malaysia
Posted: June 08, 2007 at 11:11 AM / IP Logged  
i havent used any 2 way alarm b4.. so i am not sure whether this is normal.. if my car is parked behind a 3 storey building the range would be like 50 meters.. 50m and 1 miles is a big diff.. just wondering r there any viper 5900 users out there can tell if this is normal thanks..
enice 
Silver - Posts: 857
Silver spacespace
Joined: March 05, 2006
Location: New York, United States
Posted: June 08, 2007 at 10:59 PM / IP Logged  
My car has amazing range and works great here in NYC where we have building everywhere.  My 5900 remote starts past a block full of buildings but then again its different everywhere with the frequency traffc.
creed2k 
Copper - Posts: 99
Copper spacespace
Joined: March 31, 2007
Location: United States
Posted: June 09, 2007 at 1:10 PM / IP Logged  
with my 5900 works probably at least 1/2 a mile with a bunch of buildings between me and my car...
creed2k 
Copper - Posts: 99
Copper spacespace
Joined: March 31, 2007
Location: United States
Posted: June 09, 2007 at 1:11 PM / IP Logged  
I really don't see compustar being much better if at all as far as range goes since they all use the same technology... i think the one compustar has a 1.25 mile range so its slightly further than the 5900, but as far as comparing a 1 mile range DEI to a 1 mile range compustar, i doubt there would be any difference in how far they would work even thru buildings..
ciaksaiong 
Member - Posts: 9
Member spacespace
Joined: June 03, 2007
Location: Malaysia
Posted: June 09, 2007 at 7:53 PM / IP Logged  
thank alot guys at least now i know my range is below average and not normal .. n try to fix it..
ciaksaiong 
Member - Posts: 9
Member spacespace
Joined: June 03, 2007
Location: Malaysia
Posted: June 10, 2007 at 12:09 PM / IP Logged  
i have checked the basic stuff.. antena wire fully extended.. antena is fixed to the windscreen right behind the rear mirror.. changed transmitter battery.. i do have refelctive tint on the top part of the windscreen where the antena is  Does the reflective tint really cut down the range so much?
dswift 
Copper - Posts: 396
Copper spacespace
Joined: March 12, 2007
Location: United States
Posted: June 11, 2007 at 3:29 PM / IP Logged  
creed2k wrote:
I really don't see compustar being much better if at all as far as range goes since they all use the same technology... i think the one compustar has a 1.25 mile range so its slightly further than the 5900, but as far as comparing a 1 mile range DEI to a 1 mile range compustar, i doubt there would be any difference in how far they would work even thru buildings..
have you tested this yourself? I remember someone posting this exact quesiton. but DEI uses a different bandwith than compustar. They are different spread spectrum. I believe DEI uses a Wider bandwith (25 channels) and Compustar uses a smaller bandwith (50 channels). So useing a larger bandwith shortens your range but a narrow bandwith extends your range. Hence why DEI uses a AAA battery and Compustar uses a AA battery. Word
"dont ground out!"
ciaksaiong 
Member - Posts: 9
Member spacespace
Joined: June 03, 2007
Location: Malaysia
Posted: June 13, 2007 at 3:20 AM / IP Logged  

is a faulty antena something common in car alarms?


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