My Pioneer VSX-821 has an F connector.
But NO HD.
The little NS-HDRAD has no F connector
Let's put it this way.
In 1972 my brother and i put our money together and bought our 1st receiver.
The Pioneer SX-626 and were blown away by the sound.
1994 Bought a Carver HR-772 again blown away by the sound.
The same holds true with the insignia NS-HDRAD--A mighty Might.
The sony componant type tuner probably does have F connect.Model XDRF1HD was at a sub 100 price at Frys-They may have
put on sale last week.Amazon has it at a much higher price.
Right now the NS-HDRAD is playing 90.1 HD2 with the antenna folded Down!!!!!!!!
Look for it on sale again at BB.
It just really bugs me now that every radio should have HD capability by now.But don't.
I have 2 of these and will safely say 2 more in the next 6 months if not sooner.