BMW 3 5 Series CAS3 system remote key 46&7953 Chip 315mhz/315LP-mhz (keyless entry) ,pls choose frequency

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Model No. BMR-11
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  • Model:
    315mhz-FSK
    315LP-mhz-ASK
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Availability: In Stock
  • Description
315MHz LP (Low Power) frequency in automotive key fobs typically refers to ASK (Amplitude Shift Keying) modulation, commonly used in North American and Japanese car remotes.

While 315MHz can support both"315LP" or "315MHz ASK" designates the specific, usually older or lower-power, amplitude-modulated signal, distinguishing it from 315MHz FSK (Frequency Shift Keying). 

315MHz LP: Stands for Low Power and implies ASK modulation.

315MHz FSK: A different, higher-power, or more modern modulation standard for the same carrier frequency.

Usage: Frequently found in older BMW (e.g., E46, E60) and other import vehicles. 
When replacing or cloning keys, it is critical to match "315LP" (ASK) with an ASK-capable key and "315 FSK" with an FSK-capable key, as they are not interchangeable. 



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