GPS-12R GPS-Controlled Frequency Standard - Spectracom - #1

• GPS-disciplined Rubidium clock for near-Cesium stability

• 2.048 MHz, 1-pps standard outputs for telecom applica­tions

• 1.544 MHz (T1) optional

• 1, 5 & 10 MHz optional low-noise outputs for general lab use

• Internal battery option for transportation and mains-free field use

• Optional -48 VDC option for stationary use in telephone ex­change stations

The Pendulum GPS-12R Portable Reference clock is an ultra-stable GPS-disciplined Rubidium reference, targeted for telecommunications application. Its high stability and low noise output, makes GPS-12R the ideal reference source for telecom instrumentation and testers, like SDH/PDH/Sonet Analyzers. Its Cesium standard performance, when locked to GPS, makes GPS-12R an ideal calibrator for metrology and test systems.

The GPS-12R is equipped with two 2.048 MHz outputs plus a 1-pps (one pulse-per-second) output as standard . But there are more output frequency possibili­ties.

You can choose from five optional fre­quency outputs, of which two can be mounted in parallel.

• Option 70B includes one 5 MHz and three 10 MHz low-noise outputs, for test systems or metrology applications.

^ Option 71B includes four sine wave out­puts of resp. 10 MHz, 5 MHz, 1 MHz and 0.1 MHz.

^ Option 72B includes two extra 2.048 MHz plus two 2.048 Mbps (E1) for use in telecom applications (SDH).

^ Option 73B, includes four 13 MHz out­puts for GSM radio base station tests

^ Option 74B includes two 1.544 MHz and two 1.544 Mbps (T1) outputs for use in telecom applications (SONET).

The GPS-12R is compact, lightweight and has an internal battery option to maintain stability during transportation or to allow field use without access to AC mains.

For the first time ever, it is now possible to transport an atomic frequency standard into the field and have instant access to the full stability, with zero warm-up time. When ordered with 5/10 MHz outputs, the GPS-12R fits as a portable reference clock to ALL kinds of instrumentation. It can also be used as a permanent ultra-stable frequency in-house reference, in the lab or in test systems.

Its configurable alarm outputs give urgent or non-urgent alarms for e.g. HW failures, loss of antenna connection, loss of GPS contact, etc.

The GPS-12R is an excellent reference for external calibration of Wandermeters (e.g. the WM-11 from Pendulum Instruments) and SDH/SONET network analyzers.

The GPS-12R is a very precise GPS-con-trolled Rubidium reference clock for vari­ous telecom applications. In its standard configuration it is a 2.048 MHz reference clock for calibration or synchronization of test instruments and network elements. Its 1-pps output provides an ultra-stable timing reference with excellent hold-over specifications (less than 1 |xs after 24h hold-over). This is useful in applications where timing is critical, like synchroniza­tion of DAB, DVB or WCDMA transmit­ters or for synchronization of radar antenna array systems. Its battery option makes the GPS-12R an excellent portable reference, since the in­ternal Rubidium standard is continuously powered during transports. And the optional -48 VDC operation makes the GPS-12R equally suited for permanent use as local frequency standard in telephone exchange stations, via this re­dundant power supply possibility. GPS-12R can be used as a permanent ref­erence input to SSU:s thanks to PRC spec­ifications as long as GPS lock is maintained and during days in hold-over mode.

pendulum