FlexRadio 8600 unbelievably good selectivity!

ErnestGWilsonII

I sure am hoping this forum allows me to post a few screen captures.

Something so amazing from my point of view happened today:

I was on
7.137 MHz
And there was another station on
7.140 MHz

Europe was booming in on both of these frequencies, for example:
S9+20
And both conversations happening at the same time.

Sometimes there were stations that were low power talking on the frequency I was listening to
7.137 MHz
And my filter on the flex was set for
2.7 kHz

And amazingly I did not get any bleed over or interference or RMDR or anything coming from those powerful stations on
7.140 MHz
Yet I was able to copy both loud and weak signals with unbelievable selectivity and clarity while I was on
7.137 MHz

I couldn’t believe my eyes on the scope seeing how close this other station was and how powerful it was and yet it wasn’t interfering with my ability to selectively hear even we stations on this adjacent frequency.

I am very rarely blown away by the performance of any radio.
Today I am absolutely impressed with the 8600!

I was really hoping this forum would allow me to post a few screen captures, they would really help tell the story even more.

To the good folks at FlexRadio:
Wow!
Nicely done!

73
W3GUY
Ernie in Pennsylvania

KD0RC

Hi Ernie, Welcome to the SDR world of Flex! Another "WOW" moment will come when there are far-off thunderstorms. You will generally be able to hear through them. They are still annoying, but not devastating like they are in a typical superhet. In most traditional radios, the AGC time constant will lower the gain of the rig for so long that the next lightning strike will hit before the AGC recovers - a very frustrating way to operate.

Congratulations on your new rig!

km9r.mike

Ernie,

I have been spoiled by FRS for over 12 years. When I traded in my 6700 for the new 8600, I had to rely on a backup rig ( a Yaesu 857d which is a great rig for it's class ). I tried entering a rtty contest but gave up after approximately 50 contacts . Strong adjacent signals would absolutely destroy the print out of any adjacent weaker rtty station that I was trying to work. This never once happened with my 6700 and I was so unaccustomed to such a matter I quit the contest early. I had never before quit a contest like that before. Flex makes things easier.

Congrats with your new rig.

73 mike