|
 |
Power RF - RF Cafe Forums
|
| badseeds
|
|
Post subject: Power RF
Posted: Mon May 21, 2007 2:36 am
|
|
Joined: Mon May 21, 2007
2:19 am
Posts: 2 |
|
Hi,
I have a RF cable with 8 signals at 42 dBm
(modulation GMSK). I would like to know the total
power (average and peak) and how can I calculate
it ?
Thanks for your help.
|
|
| |
|
 |
|
IR |
|
Post subject:
Posted: Fri Jun 22, 2007 8:00 am
|
|
| |
| Site Admin |
 |
Joined: Mon Jun 27, 2005
2:02 pm
Posts: 392
Location: Germany
|
|
Hello,
Each multiplication of the signal
level adds 3dB, so for example if you have 2 signals
at +42dBm level eahc, the composite level will be
+45dBm, If other 2 signals further increas by 2
the previous level (+45dBm) then the level now will
be +48dBm and so on.
I am not sure about
the PAR of GMSK modulation, but I think that is
hould be lower than 3dB. If you measure the power
with output power meter (Average) then just add
the PAR value and you will get the peak power.
|
|
Posted 11/12/2012
|
|
|
|
|
