Wanted to thank Mike and Dominic for their responses. 1. I did perform the antenna mod. 2. Use of other tools produced the same results. I even switched to a different laptop and different cable to see if that had an impact.
3. I updated the firmware some time ago, and was pretty sure that I did the CPLD at the same time. But just to be completely sure I updated it again. IT WORKED! Thanks Mike for that suggestion! Jay n8os Jay Radcliffe Twitter: @jradcliffe02 E-Mail: [email protected] LinkedIn + Resume: http://www.linkedin.com/in/jradcliffe02 On Sun, Mar 6, 2016 at 6:00 AM, Mike Walters <[email protected]> wrote: > Did you update the CPLD when updating firmware? > > On 5 March 2016 at 05:08, Jay Radcliffe <[email protected]> wrote: > >> Hello, >> >> I am working with an older Jawbreaker with current firmware (2015.07.2) >> and am seeing something odd. When I just run a simple source -> FFT in GRC >> the baseline of the noise floor is quite high (around -40db). When I take >> the antenna off it drops down to -90db. Tried several antennas with same >> results. I have tried the FM broadcast band, 440mhz and 915mhz. Typically >> when I see examples of the FFT in a demonstration or presentation the noise >> floor is in the -80/-90 range. I am using the default setting for the FFT >> and osmocom source blocks. Anyone have any ideas about this or have see >> this behavior before? >> >> Thanks, >> >> >> Jay >> >> >> Jay Radcliffe >> Twitter: @jradcliffe02 >> E-Mail: [email protected] >> <https://mail.google.com/mail/?view=cm&fs=1&tf=1&[email protected]> >> LinkedIn + Resume: http://www.linkedin.com/in/jradcliffe02 >> >> _______________________________________________ >> HackRF-dev mailing list >> [email protected] >> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev >> >> >
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