Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-06 Thread Tom Rondeau
On Thu, Dec 6, 2012 at 10:44 AM, Yahya Ezzeldin wrote: > Thank you Tom, > > I have been experimenting with the working setting that I have now. > > Why do other modulations like bpsk, qpsk fail while gmsk works perfectly ? > That's a very open-ended question and can't be answered. There are so ma

Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-06 Thread Yahya Ezzeldin
Thank you Tom, I have been experimenting with the working setting that I have now. Why do other modulations like bpsk, qpsk fail while gmsk works perfectly ? Best Regards, -- Yahya Ezzeldin On Thu, Dec 6, 2012 at 5:18 PM, Tom Rondeau wrote: > On Wed, Dec 5, 2012 at 2:23 AM, Yahya Ezzeldin wr

Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-06 Thread Tom Rondeau
On Wed, Dec 5, 2012 at 2:23 AM, Yahya Ezzeldin wrote: > Thank you Tom and Marcus, > > I finally managed to make it work with 100% delivery rate using this > configuration. > > Transmitter: > * > Tx-Amplitude = 0.4 > Rate = 1M > Samples per Symbol = 4 > > Receiver: > ** > Rate =

Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-04 Thread Tom Rondeau
On Tue, Dec 4, 2012 at 8:51 PM, Marcus D. Leech wrote: > ** > On 12/04/2012 08:39 PM, Yahya Ezzeldin wrote: > > I am using RFX900 (FLEX 900) and the VERT 900 Antennas > > Best Regards, > -- > Yahya Ezzeldin > > The RFX900 doesn't have analog TX gain setting -- you have to use the > baseband ma

Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-04 Thread Marcus D. Leech
On 12/04/2012 08:39 PM, Yahya Ezzeldin wrote: I am using RFX900 (FLEX 900) and the VERT 900 Antennas Best Regards, -- Yahya Ezzeldin The RFX900 doesn't have analog TX gain setting -- you have to use the baseband magnitude exclusively to control RF output gain. Try dropping the amplitude to 0

Re: [Discuss-gnuradio] False Packets for benchmark TX/RX

2012-12-04 Thread Yahya Ezzeldin
I am using RFX900 (FLEX 900) and the VERT 900 Antennas Best Regards, -- Yahya Ezzeldin On Wed, Dec 5, 2012 at 3:36 AM, Marcus D. Leech wrote: > ** > On 12/04/2012 08:15 PM, Yahya Ezzeldin wrote: > > I tried offsetting the carrier frequency (playing at the RX side) but >