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Author Topic: RSSI difference same hardware  (Read 923 times)

Junges

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RSSI difference same hardware
« on: May 17, 2018, 06:32:29 AM »
Hi,
I have the following questons:

1)Should i see difference in rssi from a bunch of different rfm69hw radios with exactly same firmware and hardware? The difference is something around -20 in some cases without obstacles at same position and same spatial orientation of the device.

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LukaQ

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Re: RSSI difference same hardware
« Reply #1 on: May 17, 2018, 09:55:25 AM »
Hello,

depends... are they transmitting at the same time? Do you have the same antennas, same orientation? Do you have them too close to each other?
20dB is a lot, so no, you shouldn't see that much
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Junges

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Re: RSSI difference same hardware
« Reply #2 on: June 11, 2018, 01:41:17 PM »
Exactly same hardware, firmware, antenna and orientation and enclosure.

Is it possible two brand new rfm69hw transmit  a different power even being configured with same firmware? (Same setpower level for instance)
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LukaQ

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Re: RSSI difference same hardware
« Reply #3 on: June 11, 2018, 02:57:30 PM »
I don't think that is possible, no.
Do you have both transmitters on at the same time or just one at a time?
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