PORTAPACK For HackRF One SDR Offline GPS Simulator w/ Metal Case Board 0.5PPM TCXO Unfinished

PORTAPACK For HackRF One SDR Offline GPS Simulator w/ Metal Case Board 0.5PPM TCXO Unfinished

Adopting ROSH environmentally friendly technology, in line with international standards, including DQS, WSQ, ATF, IAF, and UL.


Upgraded 0.5ppm High Precision TCXO


TCXO Stability Test Results
Set portapack in hackrf model, use the osmosdr_siggen to generate rf signal and tested tcxo ref. clock ppm.

PPM = (1 - (4.09999817 / 4.1)) * 1000000 = 0.4463414634, under 0.5ppm.


Write GPS Simulator Firmware for Testing TCXO Clocks
We customize portapack-havoc source, put gpssim baseband signal file in micro SD, through portapack send to air the result is very satisfied!

Usage:
./gps-sdr-sim -e brdc3540.14n -s 2500000 -b 8 -o gpssim.c8

Create text file named "gpssim.txt" context:
sample_rate=2500000
center_frequency=1575420000

And copy this two files into SD card at some dir:
./gpssim.c8
./gpssim.txt



Test Results (GPS Receiver Module)


Another HACKRF receives GPS baseband, and its visible signal is clean and neat, and the gain is large.


Laser Engraving Metal Case


Free Firmware Tool

Click to download: gridrf.com/Uploads/Download/PortapackFirmwareTool.zip

Package Included:
- 1 x Set of PORTAPACK For HackRF One

Note: It is unfinished. Assembling is needed.