Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-18 Thread Jason Tran
d about earlier.  Maybe if I try to add high priority to the program, I can reduce underflow problems...  -Jason  From: Josh Blum To: Jason Tran Cc: "discuss-gnuradio@gnu.org" Sent: Monday, June 18, 2012 11:57 AM Subject: Re: [Discuss-gnuradio]

Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-18 Thread Josh Blum
On 06/18/2012 10:51 AM, Jason Tran wrote: > Hi All, > > "If you are seeing transients at the beginning of a burst, thats > probablythe half band filters. They are implemented in block ram and > dont clear between bursts." > > I'm actually sending one burst of a very long length so I can emulate

Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-18 Thread Jason Tran
ps_to_send, md, timeout); Regards, Jason From: Josh Blum To: discuss-gnuradio@gnu.org Sent: Thursday, June 14, 2012 7:57 PM Subject: Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example > You can see the magnitude hovers ov

Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-14 Thread Ian Buckley
block ram^H^H^H^H^H^H^H^using SRL16's ;-) > > If you are seeing transients at the beginning of a burst, thats probably > the half band filters. They are implemented in block ram and dont clear > between bursts. > > -josh ___ Discuss-gnuradio mailing

Re: [Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-14 Thread Josh Blum
> You can see the magnitude hovers over 30 which is good (noise hovers > around 5). But, as you can see, there are two spikes with suppressed > samples around it. These are exactly spaced 363 samples apart (this > changes as I change the samples per buffer at the transmitter). Does > anyone have a

[Discuss-gnuradio] Large Sample Spikes after Each Packet in tx_bursts Example

2012-06-14 Thread Jason Tran
Hi All, (this might be a duplicate e-mail -- if so, sorry everyone!) I am trying to generate on-off traffic patterns with high timing accuracy, so I decided to use the tx_timed_samples and tx_bursts examples to do so. To start, I tried to understand the examples by using tx_bursts to send consta