| RT(4) | Device Drivers Manual | RT(4) | 
rt —
rt0 at isa? port 0x20c
rt1 at isa? port 0x284
rt2 at isa? port 0x30c
rt3 at isa? port 0x384
radio* at rt?
rt driver provides support for the AIMS Lab
  Radiotrack FM radio tuners and compatible RadioReveal RA300 and SoundForte
  RadioX SF16-FMI FM radio tuners.
The Radiotrack is a stereo FM tuner that allows to tune in the range 87.5 - 108.0 MHz, report signal status on the current frequency, and force audio output to mono.
The Radiotrack cards take only one I/O port. The I/O port is set by the driver to the value specified in the configuration file and must be either 0x20c or 0x30c.
rt device driver appeared in
  OpenBSD 3.0 and NetBSD 1.6.
rt driver was written by Vladimir Popov and Maxim
  Tsyplakov. The man page was written by Vladimir Popov.
| October 8, 2001 | NetBSD 9.4 |