I tested rx,tx GPS signal.
I connected active antenna, bias-tee, external LNA, and feeded DC using USB port.
and tested with following configures.
- set frequency 1575.42M
- set samplerate 8M
- set bandwidth 2.5M
- set rxvga1 27
- set rxvga2 12
- rx config file=r.csv format=csv n=8M
- tx config file=r.csv format=csv
But, I can't detected GPS signal.
So, I downloaded GNSS-SDR, and tested it with bladeRF.
I passed all tests with "run_tests" program, but didn't work well with "gnss-sdr", "front-end-cal" programs.
It shows some errors.
- "no GPS satellites detected in front-end capture, please check the antenna setup..."
- "SUPL client for Almanac returned -8" and "Unable to connect flowgraph"
- "Loss of lock in channel"
- "PLL Frequency tune error 0.000000 [Hz]"
And program ended.
How can I solve these problems? I want to know your tips about it.
https://goo.gl/photos/NMcDfwzSdcK2NGoy9
Here's pictures about it.