Varactor Tuned Navigation Band Preselector: TF0112
MtronPTI’s TF0112 varactor tuned aviation navigation band preselector improves safety in cross country and landing operations by attenuating interfering signals that might cause a cockpit radio to lose lock on a desired VOR or localizer/glide-slope signal.
Even with commercial airliners shifting towards GPS for their navigation, air operators will continue to rely on VOR (VHF Omnidirectional radio Range) and ILS (Instrument Landing System) for their navigation for the foreseeable future. Possible GPS outages and continued increasing flight traffic in the developing world dictate this. While legacy VOR and ILS are still relevant, they’re also prone to interference from FM or shortwave broadcast stations. The TF0112 helps by creating a narrow 3% passband, tuned by a low voltage analog signal, to any frequency in the navigation band. With a VSWR of <1.5:1 and a low in-band intermodulation (IP3) specification of +30 dBm minimum, the TF0112 minimizes potential disruptions, helping ensure aircraft and passenger safety.
MtronPTI’s TF0112 Varactor Tuned Navigation Band Preselector is small: measuring 1.25” x 0.5”. It can handle power levels up to +20 dBm without damage and comes in a surface mount package that is completely sealed, allowing automated assembly with no wash-related shift problems like competing open frame designs. For more information on the TF0112 or its companion – the TF0111 Aviation Voice Band Tunable Preselector, download the datasheets.