OK, thanks to fellow ham and FDM-DUO user Dave Kennett's suggestion, I have a resolution to my problem!
This HC-05 module appears to operate differently than other HC-05 modules I have purchased.
With this version of the HC-05:
1) There is no flashing blue LED by the antenna end
2) It automatically goes into Programming mode when a wire is attached to the EN pin on the chip.
When the wire is removed from EN pin, the module goes into Operate mode.
I was then able to find the BLUEDUO signal on my Android device.
This info may be useful info for others....