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MX920/921 Product Overview
| The MX920/921
series employs state of the art design and construction methods to deliver a range of high
performance, very reliable radio base stations and repeaters. They are ideally suited for
use in VHF or UHF two-way voice communications radio systems. The MX921 is a rack mounted
model and is a low current design (60mA). |
| Fractional synthesizers’ and the two-point
modulation method give the added advantage of linear frequency and phase response from DC
to 3 kHz for accurate reproduction of voice and low frequency digital signaling systems. |
| The Receiver and Exciter circuits are contained in
single special aluminum housing together with the associated audio processing and digital
control on a single circuit board. |
| The Power Amplifier is also contained in its own
extruded aluminum housing and can be easily removed from the main chassis. The MX920/921
also incorporates ‘Plug and Play’ technology and performs automatic
self-calibration. A complete module changeover is field replaceable in very short time. |
| The MX920/921 employs some unique features in its
design and much thought and consultation has been used to provide a product that offers an
extreme degree of flexibility for the installer and service person. For example, all
options may be easily field retrofitted at a later date. A common chassis is used for both
vertical and horizontal version models. Batteries may be installed at two or both
locations in the chassis. Internal wiring has been simplified and cut by 90%. In addition,
servicing is simplified with one single main PCB having all components on one side of the
PCB. This permits the Technician to diagnose problems while either
still connected in the chassis or powered simply and independently on the test bench. The
flexibility of the MX920/921 series allows it to be configured for a wide range of
applications without removing any covers. |
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