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Inssomniak
The Glitch
Premium Member
join:2005-04-06
Cayuga, ON

Inssomniak

Premium Member

Oy..

Click for full size
These chinese wireless video cameras are gonna be the death of me.
lutful
... of ideas
Premium Member
join:2005-06-16
Ottawa, ON

lutful

Premium Member

This plot appears to show -60dBm in the center 10Mhz dropping down to -80dBm on either side. Quite tame compared to analog video transmitters designed by USA/Canada companies under ISM rules that can take over the whole 2.4Ghz band.

If you are using directional antennas, the CPEs should not be affected by nearby video transmitters.

Inssomniak
The Glitch
Premium Member
join:2005-04-06
Cayuga, ON

Inssomniak

Premium Member

said by lutful:

This plot appears to show -60dBm in the center 10Mhz dropping down to -80dBm on either side. Quite tame compared to analog video transmitters designed by USA/Canada companies under ISM rules that can take over the whole 2.4Ghz band.

If you are using directional antennas, the CPEs should not be affected by nearby video transmitters.

This was 500 meters from the POP 17 Dbi sectors pure LOS. Under there is my 10mhz wide signal on channel 11. This scan was done with a 2dbi antenna 30 meters from the camera. Customer swore up and down he had nothing wireless, but we have heard that many times
lutful
... of ideas
Premium Member
join:2005-06-16
Ottawa, ON

lutful

Premium Member

said by Inssomniak:

This scan was done with a 2dbi antenna 30 meters from the camera.

You can guesstimate camera's EIRP based on -60dBm observed RSSI and above details.