Ant RF Gain slider on 6300 with V 2.0.19.98

jean claude

Ant RF Gain slider on 6300 with V 2.0.19.98
Due to QRM from plc getting bigger every where, is there a chance to get the gain slider adjustable with my config?
Nowadays it is 0 or 20 Db.
It would be great to be able to adjust the gain at the limit of the QRM.
Tks
jean claude  F6EJU

Tim - W4TME

If you are experiencing QRM, you do not want more RF gain, especially on the bands above 14 MHz unless you are using a negative gain antenna.

This article will inform you when RF gain is needed
https://helpdesk.flexradio.com/hc/en-us/articles/204923669-How-to-determine-the-amount-of-RF-Preamp-...

You want to the AGC-T setting to optimize your signal to noise ratio for receive.
This is covered in the SmartSDR Software Users Guide in the AGC-T section, chapter 13 How to Configure Noise Mitigation   

http://www.flexradio.com/downloads/smartsdr-software-user-guide-pdf/

jean claude

TIM
Tks for your reply.
I am going to study what you have explained.
Tell me one thing:
On the 6300 is there or not the possibility to adjust the ANT RF GAIN by a slider and not what I have today which is 0 or 20 DB.
To tell you the true, I have bought the V 2.0.19.98 thinking it will turns the switch in a real slider.... 
regards
jean claude

Tim - W4TME

The RF gain control is not continuously variable.  It has fixed gain settings in steps.

jean claude

Do all models 6000 have this function working in the same way ?"fixed gain"
I am gonna get a new 6400 when available on this side of the pond ...2018 
Will it be as all the 6000 with a fixed gain?

K0FLY

Jean:

What your adjusting (RF Gain) is known as PRE AMP on/off in other radios.   Look at the slice flag, click on the speaker Icon, you will see the box for selection of AGC Speed.  To the right of that is a slider, this is the variable parameter you are looking for, FLEX calls it AGC Threshold, it would be labeled RF gain on analog radios.

Gayle K0FLY

jean claude

Thanks Gayle.
73 f6eju

Tim - W4TME

Yes, all FLEX-6000 operate this way, they have a stepped gain RF preamp.

jean claude

Tim

Now It is clear  in my mind.
Thanks for your help and patience...
73
jean claude F6eju

Tim - W4TME

You're welcome