Oscillator List: Meinberg GNSS Receivers
A downloadable PDF version of this oscillator list is available here for more convenient printing.
Meinberg devices equipped with GNSS receivers for synchronization are typically equipped with a TCXO or OCXO type oscillator. This table will help you to assess what performance you can expect from your Meinberg device or help you to select the appropriate oscillator for your Meinberg system.
Please note that Meinberg IMS reference clock modules and microSync systems are only available with OCXO-SQ type or better oscillators. Some devices may not support all oscillator types due to space restrictions inherent in the chassis form factor.
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TCXO | OCXO-LQ | OCXO-SQ | OCXO-HQ | OCXO-DHQ | Rubidium |
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Pulse-per-Second Accuracy
GNSS-Synchronized |
< ±100 ns | < ±100 ns | < ±50 ns | < ±50 ns | < ±50 ns | < ±50 ns |
|---|---|---|---|---|---|---|
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10 MHz Short-Term Stability
(1)
GNSS-Synchronized, τ = 1 sec |
± 2 × 10-9 | ± 1 × 10-9 | ± 5 × 10-10 | ± 5 × 10-12 | ± 2 × 10-12 | ± 2 × 10-11 |
|
10 MHz Frequency Accuracy
(2) (4)
GNSS-Synchronized, 24 Hours |
± 1 × 10-11
± 0.1 mHz |
± 1 × 10-11
± 0.1 mHz |
± 1 × 10-11
± 0.1 mHz |
± 1 × 10-12
± 0.01 mHz |
± 1 × 10-12
± 0.01 mHz |
± 1 × 10-12
± 0.01 mHz |
|
10 MHz Frequency Accuracy
(2) (3) (4)
After 24 Hours in Free-Run Mode |
± 1 × 10-7
± 1 Hz |
± 2 × 10-8
± 200 mHz |
± 5 × 10-9
± 50 mHz |
± 5 × 10-10
± 5 mHz |
± 1 × 10-10
± 1 mHz |
± 1 × 10-11
± 0.2 mHz |
|
10 MHz Frequency Accuracy
(2) (3) (4)
After 1 Year in Free-Run Mode |
±1 × 10-6
± 10 Hz |
±4 × 10-7
± 4 Hz |
±2 × 10-7
± 2 Hz |
±5 × 10-8
± 500 mHz |
±1 × 10-8
± 100 mHz |
±5 × 10-10
± 5 mHz |
|
Phase Drift
(3) (4)
After 24 Hours in Free-Run Mode |
± 4.3 ms | ± 865 µs | ± 65 µs | ± 10 µs | ± 4.5 µs | ± 800 ns |
|
Phase Drift
(3) (4)
After 7 Days in Free-Run Mode |
± 128 ms | ± 32 ms | ± 9.2 ms | ± 1.0 ms | ± 204 µs | ± 34 µs |
|
Phase Drift
(3) (4)
After 30 Days in Free-Run Mode |
± 1.1 s | ± 330 ms | ± 120 ms | ± 16 ms | ± 3.3 ms | ± 370 µs |
|
Phase Drift
(3) (4)
After 1 Year in Free-Run Mode |
± 16 s | ± 6.3 s | ± 4.7 s | ± 788 ms | ± 158 ms | ± 8 ms |
| Phase Noise |
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Temperature-Dependent Freq. Drift
(3)
Free-Run Mode |
± 1 × 10-6
(-20 °C to 70 °C) |
± 2 × 10-7
(0 °C to 60 °C) |
± 1 × 10-7
(-10 °C to 70 °C) |
± 1 × 10-8
(5 °C to 70 °C) |
± 2 × 10-10
(5 °C to 70 °C) |
± 6 × 10-10
(-25 °C to 70 °C) |
(1) Maximum frequency deviation in a given second, represented as a factor of 1 second, average of measurements taken over a 24-hour period.
(2) Maximum frequency drift relative to the 10 MHz reference frequency, represented as a factor of 10 MHz, followed by the absolute maximum deviation in millihertz.
(3) Values measured using a free-running oscillator that has been previously disciplined by a GNSS reference for 24 hours.
(4) Frequency accuracy & phase drift values assume a constant environmental temperature.
