android_kernel_samsung_sm8650/drivers/media
Mauro Carvalho Chehab 3926d91a6b [media] dib7000p: Callibrate signal strength
Calibrate the signal strength to dB.

For this callibration, I used adapter 0 (antenna 1), connected
via a normal cable to a DTF-2111 generator.

The same cabling and RF generator connected to adapter 1
(antenna 2) has a difference of +3dBm (signal was stronger
there).

Yet, changing the RF for a difference of, let's say, 6dB
reflected on a 6dB difference at the measured signal, with
is good.

So, the signal strengh can indeed be used to measure the
antenna gain, if the antenna is repositioned. It is
not precise to measure the absolute dBm value, however.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-06-17 12:04:51 -03:00
..
common [media] rc: abstract access to allowed/enabled protocols 2014-03-11 13:24:39 -03:00
dvb-core [media] dvbdev: add a dvb_detach() macro 2014-06-17 12:04:47 -03:00
dvb-frontends [media] dib7000p: Callibrate signal strength 2014-06-17 12:04:51 -03:00
firewire
i2c [media] smiapp: I2C address is the last part of the subdev name 2014-06-17 12:04:45 -03:00
mmc
parport [media] media: parport: Fix format string mismatch in bw-qcam.c 2014-05-23 12:18:53 -03:00
pci [media] dib7000: export just one symbol 2014-06-17 12:04:49 -03:00
platform [media] m2m-deinterlace: Convert to devm* API 2014-06-17 12:04:46 -03:00
radio [media] si4713: fix Kconfig dependencies 2014-03-28 18:06:55 -03:00
rc Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media into next 2014-06-04 14:24:30 -07:00
tuners [media] xc5000: delay tuner sleep to 5 seconds 2014-05-25 17:50:16 -03:00
usb [media] dib8000: export just one symbol 2014-06-17 12:04:50 -03:00
v4l2-core Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-06-12 23:04:28 -07:00
Kconfig [media] subdev autoselect only works if I2C and I2C_MUX is selected 2013-12-21 06:03:06 -02:00
Makefile
media-device.c Linux 3.15-rc6 2014-05-21 23:03:15 -03:00
media-devnode.c [media] media: Use a better owner for the media device 2014-05-13 13:39:00 -03:00
media-entity.c [media] media: Check for active links on pads with MEDIA_PAD_FL_MUST_CONNECT flag 2013-12-04 15:03:45 -02:00