Addicted to electronics, microcontroller, LED Dot Matrix, Led 7-Segment, PIC Digital Clock, Digital Watch, Led Dot Matrix Clock, Led Dot Matrix Watch, GPS and other DIY projects. Short notes about my PIC Microcontroller experiments sometimes it's just a short note sometimes it's a full PIC Microcontroller Project. The information here including source code and schematic are available for FREE, please contact me if you want the source files of the schematics/PCBs.
Friday, June 6, 2008
CW25-TIM
There is a limitation for my GPS clock. It needs clear view of the sky in order to get accurate time. I can get only 2 satellites if I put antenna close to window. So, I have to put the antenna outside my window to get more than 3 satellites.
Just now, I have found CW25-TIM from NavSync. From a note in the website, it reports that the CW25-TIM can get 9 satellites in a room without window!. Very impressive!
SemiconductorStore is selling it at USD64. I am thinking about using this GPS module for my GPS clock so the clock will be selfcontained, no need to put antenna outside building.
After some searches, I found that CW12-TIM is a ready-to-use GPS module that uses CW25-TIM inside. So, my target is now CW12-TIM.
I just know your blog from Thaiblog.com
ReplyDeleteI think your project is very impressive. Refer to GPS antenna (this model), I couldn't understand why do you have to put it inside your clock? For what application or what kind of clock do you mean?