It is certainly possible to observe 19F on most Bruker Avance spectrometers. In many cases, it is as easy as selecting a fluorine parameter set, setting the probe/solvert calibration parameters, and then acquiring the data. A lot will depend on the exact hardware that you have.
Probes: The 1H channel on many probes will tune to 19 F. You will have to check yours to be sure. There are dual 1H/19F probes available, and many of the newer brodband probes (BBFO, BBO+ and QNP) will observe 19F through the X port on the probe. This enables you to do 1H/19F double resonance. Note that a lot of probes have a 19F background from teflon.
Pre-amps. The normal 1H pre-amp isn't typically used for 19F. It is the X pre-amp that will cover 19F (to match with 19F on the X port of the probe). Our system also has a separate 19F pre-amp that we can use for 19F of solids, as it has a 4 kW power limit.
Console: The 19F transmit signal is routed through the 1H amplifiers. However, it often then goes through something called a "QNP switchbox" to make sure it is routed to the X port on the probe. On some systems (like our AV 300) it is part of the amplifier, and on others it is a separate unit (like our AV III 500). You can clearly see if this unit is there in the edasp dialog.
Filters: You will generally also need some filters if you intend to do 1H/19F double resonance.
That's about all I can say without knowing exactly what hardware you have. If you send me some details, I can give you some more tips.
On our systems (AV 300 with QNP probe and AV III 500 with BBFO ATM probe), running 19F with or without 1H decoupling and 1H with 19F decoupling is as simple as running normal proton and carbon spectra. A lot just depends on making sure that the software, cabling and calibration files have been properly configured. Bruker probably did this at installation.
Cheers -Kirk