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The "factory settings" (numerical value in the Service Menu) aren't going to do you any good.  As has been said, each radio is different.


You will have to use a SG to fix your problem, there is no way around it.


What I can tell you is the "factory setting" for the S meter input levels.  These match what all CB's and 10meter radios have used for the last 50+ years.  So if you have other CB's/10 meter radios, and you want your Q5N2 S-meter to match, use these settings:


S1=-115dBm

S3=-103dBm

S5=-91dBm

S7=-79dBm

S9=-67dBm

S9+60=-7dBm


If you have multiband HF rig/s and you want your Q5N2 S-meter to match them, then use these:  *NOTE-This is not factory.


S1=-121dBm

S3=-109dBm

S5=-97dBm

S7=-85dBm

S9=-73dBm

S9+60=-13dBm


There are 6 S-meter settings for AM/FM and 6 S-meter settings for SSB.  Service menu ch40~52.  An input from a SG is REQUIRED to be able to set the correct level.