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Re: [Discuss-gnuradio] QT Freqency Sink vs. Log Power FFT values


From: Marcus Müller
Subject: Re: [Discuss-gnuradio] QT Freqency Sink vs. Log Power FFT values
Date: Mon, 7 Aug 2017 10:31:01 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

Hi Kevin, Hi John,


On 08/07/2017 01:21 AM, Kevin Reid wrote:
On Sun, Aug 6, 2017 at 1:57 PM, John Ackermann N8UR <address@hidden> wrote:

I took a look at logpwrfft's code and the first thing that is done to that number is ref_scale/2, so you need to pass in a float (1.0) rather than an integer to not get it truncated to zero. Sounds like something to fix.

agreed!

https://github.com/gnuradio/gnuradio/pull/1415

Only made this against master, not maint, as it *does* change behaviour. Not sure. If wanted, I can do against maint, too. Maintainers?

Cheers,
Marcus

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