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[Discuss-gnuradio] KD7LMO GPS sample and sample rate nomenclature

From: Chris Stankevitz
Subject: [Discuss-gnuradio] KD7LMO GPS sample and sample rate nomenclature
Date: Thu, 25 Jan 2007 10:55:30 -0800
User-agent: Thunderbird (Windows/20061207)


KD7LMO provides a binary GPS recording, presumably made with the USRP (thank you!). It is advertised as "4msps / complex GPS Snapshot (500 mS)". I use these ratios to determine what the file size should be:

500e-3 seconds
4e6 complex_samples / second
2 floats / complex_sample
32 bits / float
1/8 bytes / bit

Multiply them all together and I get 16e6 bytes. However, KD7LMO's file is 32e6 bytes large. Can someone explain the discrepancy or misunderstanding?

Thank you!


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