Search found 9 matches

by fperal
Mon Apr 17, 2017 3:53 am
Forum: Hardware and RF
Topic: BB amplifier does not work and make reception not work.
Replies: 5
Views: 10100

Re: BB amplifier does not work and make reception not work.

With gqrx works fine too administrador@PC1411:~$ bladeRF-cli -i peek lms 0x9 bladeRF> peek lms 0x09 0x09: 0x40 [7:7] 0 (0x00) RXOUTSW [6:0] 64 (0x40) CLK_EN[6:0] [6:6] 1 (0x01) PLLCKLOUT CLK_EN [5:5] 0 (0x00) LPF_CAL CLK_EN [4:4] 0 (0x00) RX VGA2 CLK_EN [3:3] 0 (0x00) RX LPF CLK_EN [2:2] 0 (0x00) RX...
by fperal
Wed Apr 05, 2017 11:35 am
Forum: Hardware and RF
Topic: BB amplifier does not work and make reception not work.
Replies: 5
Views: 10100

Re: BB amplifier does not work and make reception not work.

If you can receive at all, it's unlikely the internal amplifiers are broken, but I suppose it's possible. Has your bladeRF been exposed to any signals above +23 dBm? It is possible. I didn't know you can not set RF gain, so I have used it with RF gain while receiving and it is posiible that a mobil...
by fperal
Wed Apr 05, 2017 2:18 am
Forum: Hardware and RF
Topic: BB amplifier does not work and make reception not work.
Replies: 5
Views: 10100

BB amplifier does not work and make reception not work.

I have two bladeRF whose RX works faulty. They may have been used with RF gain different to 0. I have been testing it taking measures wit oscilloscope and spectrum analizer at RXOUTI/RXOUTQ of LMS6002. Both of them work with RX gain set to RF=0; IF=0, BB=0. Both of them stop receiving if I set BB to...
by fperal
Sun Mar 05, 2017 11:09 am
Forum: Software development
Topic: TX and RX gains in osmocom and amplifiers in bladeRF
Replies: 1
Views: 5667

TX and RX gains in osmocom and amplifiers in bladeRF

Hi. I haven't found information about the relationship between blade gain in the different stages and osmocom gains In bladeRF gains are set by the LMS6002D , so we have Transmision TXLPF gain: 0 or 6dB TXVGA1 gain: 0 to 31dB in 1dB step TXVGA2 gain: 0 to 25 dB in 1dB step Reception RXLNA gain: 0 or...
by fperal
Wed Mar 01, 2017 11:22 am
Forum: Hardware and RF
Topic: RF gain and damaging BladeRF input
Replies: 1
Views: 5651

RF gain and damaging BladeRF input

Hi!. I have read that HackRF is recomended to be used with 0dB gain because RF amplifier has no filter and when trying to amplify some signal (let's say FM station) if we have some strong signal near (let say a mobile phone near the bladeRF) this strong signal may be amplified and destroy the RF inp...
by fperal
Sat Dec 06, 2014 4:03 pm
Forum: Hardware and RF
Topic: BladeRF+XB-200 transverter case?
Replies: 2
Views: 17365

BladeRF+XB-200 transverter case?

Has anybody designed a case for XB-200 mounted on BladeRF in order to get it printed?

regards
by fperal
Wed Feb 12, 2014 4:23 pm
Forum: Hardware and RF
Topic: Enclosure
Replies: 10
Views: 37697

Re: Enclosure

I designed a box to be printed with a 3D printer.

The box: http://www.plumabot.es/documentos/cajaBladeRF-caja.stl

And the cover: http://www.plumabot.es/documentos/cajaBladeRF-caja.stl
by fperal
Tue Nov 26, 2013 8:48 am
Forum: Software development
Topic: GRC flowgraph examples using bladeRF
Replies: 8
Views: 22875

Re: GRC flowgraph examples using bladeRF

With GRC it also works

Image


Is shows some OOOOOO but only at first moments, if I let it continue adquiring signal there are no more OOO.



regards
by fperal
Tue Nov 26, 2013 7:57 am
Forum: Software development
Topic: GRC flowgraph examples using bladeRF
Replies: 8
Views: 22875

Re: GRC flowgraph examples using bladeRF

Im testing and I can see the spectrum browser http://ubuntuone.com/3oim1iFa1m3TKpcv0Ae39B With http://ubuntuone.com/0Ev7qzIwOjUI7u9RNBr7JY I'm using a version of etthus sdr usb stick image wich I've modified to use it in a Vmware machine and added support for NI-USRP-2920 and RTL2832. I get some OOO...