UHF Amateur Radio Repeater
Downlink: 442.700 MHz, Uplink 447.700 MHz PL 103.5 Hz
Firstech's new 907 MHz spread spectrum 2-way alarm gets FCC type acceptance. See FCC search below for detailed information on this new product. 447.7 car alarms to stop shipping August 31st, 2001!
VA3BMC has been experiencing interference since winter 1999 from a new car alarm being sold in North America. Firstech, importers of the Compustar 2-way brand of car alarms, has chosen the amateur band repeater input portion, and specifically 447.700 MHz for it's car alarm. Read all about it in the links attached.
l Compustar Car Alarm issue in detail
M Firstech Responds and switches to 900 MHz (Updated August 30, 2001)
Associated Links regarding the car alarm issue:INNOSYS Co., LTD On November 4th, 2003, another South Korean company named has gained FCC approval under Part 15.231 for a 447.7 MHz car alarm. Grantee code RF3.
CompuStar / Firstech the Car Alarm Importer and Distributor. Be sure to see the external antenna that will double the effective range!
FCC Equipment Authorization Web Page where you can look up the Grant Certificate, photos, schematics, test reports, and manual of any approved radio device. CompuStar / Firstech Grant code is N99. See the new 900 MHz Compustar!
Industry Canada Certification Lab web page. Enter COMPUSTAR for model or YOUNGSHIN for manufacturer
Industry Canada RSS-210 License Exempt Low Power Device document
Industry Canada Frequency Search where you can look up other LICENSED devices operating in the amateur band.
ARRL Part 15 Web Page that discusses the complex issues surrounding Part 15 devices.
MagiCar Car Alarm which is similar to CompuStar, but 433 MHz
Another Korean manufacturer of similar Car Alarms, but 433 MHz
Yet another Korean manufacturer of similar Car Alarms, but 447.6750 MHz
+ For more information, please contact VA3PLA at qsl...netLink to VA3PLA Solar Powered Repeater
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