User's Manual

Table Of Contents

MX800 Transceiver Appendices

7.7 MX800 System Applications

Comprehensive standard features along with a wide range of options and

accessories available to it mean that the MX800 is capable of being used in

many different applications. The most common of which are mentioned

below together with notes where applicable on the relevant aspect of the

MX800.

Figure 7-2 MX800’s Setup in system rack

7.7.1 Conventional base station/repeater

Upper tier RF performance figures make the MX800 an excellent choice for a

conventional base station or repeater. The PA is continuously rated and

receiver figure of merit parameters such as sensitivity, Intermodulation and

selectivity are all of a high standard. Independently adjustable PTT and

CTCSS tails mean that the mute crash can be eliminated in mobiles when

base transmit CTCSS is used. A 40ms RX audio delay option (T08) similarly

facilitates the elimination of the mute crash in the base station side.

As standard feature when the CTCSS encode/decode option is selected is

multiple tone groups. In excess of 25 tones can be selected as valid CTCSS

tones on a shared RF channel. Provision is made in the programming

software to enter tone pairs for each group without restriction on how the

tones are selected.

Many other attributes of the MX800 and its options are useful in conventional

base/repeater systems. For example:-

♦ Programmable channel bandwidth

♦ DCS / Digital Private Line

♦ Range of front panel functions available

♦ Optional two wire four wire operation

♦ Tone PTT with programmable PTT tone

♦ Optional balanced and isolated VF I/O and signaling lines