[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] UCLA Zigbee PHY examples updated for UHD
From: |
Josh Blum |
Subject: |
Re: [Discuss-gnuradio] UCLA Zigbee PHY examples updated for UHD |
Date: |
Mon, 23 May 2011 10:20:54 -0700 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 |
> However, I'm confused by all the frequency setting/tuning functions at our
> disposition. In my example,
> 1)I am setting cordic-freq (set by parser) while calling the main program,
> e.g. -c 2450000000 -that's the frequency I want to set my USRP to.
>
OK, I guess everything is fine. As a matter of terminology, calling it
center freq might make more sense. The cordic frequency is the DSP
frequency.
> Why is uhd.tune_request setting the center frequency to 2.6 instead of 2.45
> GHz?
> Also, am I calling the uhd.tune_result function wrong - why are all the
> values 0?
You are making a new (empty tune result object). Not the one returned by
the set center frequency.
> Furthermore, what is the difference between
> self.u.set_center_freq(options.cordic_freq,0).actual_rf_freq and
> self.u.set_center_freq(options.cordic_freq,0) functions?
>
Accessing a parameter vs not accessing a parameter?
-josh