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Page Updated 12 July 2004

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Stornophone 9000

The black finned Storno CQF9000 was introduced in 1985 as a direct replacement for the famous grey finned CQF600. Designed to maintain total compatibility with it's predecessor while also defining the path to support ever more sophisticated control systems, the Storno 9000 base station's RF design provided a significant step forward in performance.

Design features

The CQF9000 employed the same wall mounted 'opening book' cabinet design as the universally respected CQF600. The only significant change to the internal layout was that the now smaller antenna switching or duplexer section was located below the transmitter and receiver trays. RF module architecture was based on the existing CQM900 mobile design.

9000 Receiver tray

Technical Developments

Improved RF performance in the form of a choice of high sensitivity or high intermod rejection versions of the receiver and a transmitter power of up to 40W allowed stations to be optimised for low density rural or high capacity urban environments. Options for synthesised channel selection, quasi-synchronous transmission and receiver diversity voting later completed a package that was flexible enough for use in every available type of system.

CQF9000 Intenal view

System capabilities

The system capability was determined by the base station control panel, ranging from the IU905 interface unit which provided compatibility with the earlier CAF680 control systems, through to FFSK data controlled trunked station control panels capable of reporting door alarms, battery status, etc. and even reverting to provide fallback operation in case a station became isolated from it's controller.
CAF9600 Conrol Box


As usual, a vast array of system specific control equipment was developed but the standard issue control system for the 9000 series was the CAF9600 range. Standard features included call stacking, emergency alarms and status display.
T-Bracket installation


The standard wall mount cabinet was simply installed by locating the three studs into the T- bracket, the only difference with the earlier 600 bracket was that the bottom stud could be secured in the locked position by tightening the Allen key below it. Although the wall mount cabinet was de rigeur there were systems that employed re-packaged CQF9000 modules in the form of separate 19 inch rack mounted transmitter and receiver trays.
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