Description
The GRClok-1500 is a smart, low cost, compact rubidium oscillator with an optional integrated GPS / GNSS receiver, using u-Blox’s advanced 50-channel LEA-6T GPS receiver with a 6-position engine and anti-jamming technology.
It’s GNSS ready to support multi-navigational satellite system receivers, including GPS, Galileo, GLONASS, IRNSS, and BDS / COMPASS. It is compatible to the Stanford PRS10 model and fits in a compact 1U chassis. The LNRClok uses the patented, adaptive SmarTiming+ technology, disciplining the GPS/GNSS reference at 1ns resolution, providing a host of complex time and frequency features in one package solution, while achieving state-of-the-art performance, reliability and extended lifetime.
Features
| Specifications | Standard | Options |
| Output Input |
10 MHz | 2.048, 4.096, 10.23 MHz 1PPS from GPS/GNSS or GPS/GNSS receiver inside |
| Accuracy @ shipment | typ. < 5×11 at 25c | |
| Tempco Temp Aging |
+1E-10 -10 to 55C < 5E-11/mth, typ. < 3E-11/mth |
-32 to 60C < 3E-11/mth or 2E-10/yr |
| Stability (ADEV) 1s 10s 100s |
2E-11 8E-12 3E-12 |
1E-11 3E-12 1E-12 |
| Phase noise @ 10 MHz 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz |
(dBc/Hz) -75 -95 -125 -145 -150 |
|
| Holdover | < 1µs/24hr*, < 7µs/week* < 3µs/24hr** < 7µs/24hr*** *temp profile +2C **temp profile within 20C ***temp profile within 40C |
|
| Warm-up time @ 25C | 12 min, 5E-10 | < 5-7 min(a) 25 min(b) |
| Power (operating)
Voltage |
< 7-14W
24V |
< 40-50W(a) < 24W(b) +2W with GPS/GNSS inside 12V < 30W |
| Size (WxHxL) | 128x95x38.1mm | 5.03×3.74×1.5″ | |
| Weight | 500 g | 1.1 lbs | |
| Vibration sensistivity | see spec | |
| Low g sensitivity | n/a |
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