wrong RX-GAIN/meter values for HL2 at least

[rolnas]

After some investigation I found two problems with newer version of pihpsdr (branch master).

1. RX-GAIN slider is not restored after application start;
2. meter value is not corrected by RX-GAIN value and is showing 14dB more (than in 2.0.0-rc15);

Both problems could be solved with those patches proposed: meter_patch2.txt sliders_patch2.txt

In DL1YCF fork the same problem with RX-GAIN slider and more complicated problem with meters (because +attenuation-gain is used, when attenuation is initialized to 14 for HL2).

73 Rolandas LY0NAS

[dl1ycf]

I am in the process of correcting this (and similarly at some other places). This came since previous versions used "attenuation" for HL2 while now it is "gain". Could you try the dl1ycf version and tell me whether there are still problems?