Conventional two-way radio service
Conventional analogue two-way radios are still in operation all over the world, especially in areas where it is impossible or too expensive to install cellular or PMR networks. Some applications are so widely established that it will be very costly to change to a modern digital standard, e.g. air traffic control: Even the most advanced aircrafts still use conventional, amplitude modulated radios in the VHF band.
Military and police organisations all over the world are using two-way radios. These radios are being repaired either by their own repair shops, or by local repair centres operated by the equipment manufacturer. Service personnel is using the 2801 Multilock for testing transmitter and receiver parameters such as sensitivity, RF power, modulation depth, frequency offset and distortion or SINAD. The 2801 supports all these measurements, including tone signals for conventional pagers and DTMF/CTCSS codes.
Digital two-way radio service
In some regions, digital networks for safety and security personnel are installed. P25 (or APCO 25) is a standard for these networks. P25 installations can be found throughout North America as well as in Russia and the Middle East. The 2801 Multilock is prepared for P25 testing!
DMR is another digital Professional Mobile Radio standard, but does not need a cellular infrastructure. It is more like a direct digital replacement for the conventional two-way radio and can be used simply like a set of analogue radios. DMR needs a lower signal to noise ratio than conventional FM.
General-purpose applications
The 2801 Multilock is so variable in its applications! With its RF signal generation and analysis features, its fast and powerful spectrum analyzer and oscilloscope as well as with its sensitive RF port it can perform any measurements up to 3 GHz in repair services and in engineering. This includes
- Transmitter alignment in the broadcast business
- Satellite downlink measurements
- A multi-purpose desktop instrument in the R&D environment
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