However, never enter a planned altitude in the
preselector just because you know it's coming.
Other spectrum analyzers would bypass the YIG
preselector when doing work above 3.6 GHz or even 8 GHz, depending on the manufacturer.
+ The S-Tec SA500
preselector offers good autopilot automation and alerts.
The fluid transmission
preselector gear change was a feature of Daimler."
For example, option 067 for Anritsu's MS2830A provides
preselector bypass that supports 125-MHz wideband measurements to 43 GHz on an appropriately configured instrument.
The G500 can command the S-Tec the remote altitude
preselector with a $2995 enablement card.
The poster advertised the new Lanchester motor car with fluid transmission and
preselector gear change.
The IF pan display shows all signals in the
preselector pass band.
The system is intuitive, has GPSS, autotrim, voice alert automation and an integrated altitude
preselector; and is equally at home in a Baron or single-engine Rockwell.
This general architecture places
preselector filters as the first element in the tuner chain, followed by low gain (typically 10-15 dB), high-intercept preamplifiers, followed by an upconverting mixer, amplification and filtering at the first IF (nominally 22.5 GHz), a downconverting mixer and, finally, second IF amplification.
Honeywell says the KFD 840 can replace the KAS altitude
preselector that goes with KFC-200/250 autopilots.
The new spectrum analyzer also features good channel flatness for all measurements due to a switched-filter
preselector.