Rubidium
Oscillator
The RFS10F is a free running rubidium oscillator or
frequency standard available from Precision Test
Systems.
This product is in use all over the world and uses our
high performance, low phase noise, rubidium oscillator
module.
The standard RFS10F is available in a 19" rack mount
case and has five isolated 10 MHz outputs. Also
there is a 1 pps output derived from the rubidium.
The phase noise of the RFS10F oscillator is up to 30 dB
lower than our competitors, thanks to a unique,
innovative, phase locking mechanism used in our rubidium
oscillator.
Also the rubidium oscillator has been designed for a
twenty year typical life. Ageing is only 5 x 10E-9
for the entire 20 year life or 5 x 10E-10 per year or 5
x 10E-11 per month. We back this up with our no
quibble 3 year warranty.
Many options exist and if there isn't the option you
want, we will design it for you.
Options include the following:
-
An extra
five, ten or fifteen sinewave outputs. All
outputs are isolated by 90 dB with respect to each
other and there is over 130 dB of isolation between
any output and the rubidium oscillator itself.
-
External
locking input. Lock the rubidium to an
external signal, such as 1 pps, 5 MHz, 10 MHz, 13
MHz etc. Also the 1 pps output can be time
tagged to this locking input.
-
Change of
frequency, e.g. 5 MHz, 75 MHz, 100 MHz, 1575.42 MHz
etc.
-
Ultra low
phase noise output. -110 dBc @ 1 Hz with a
-175 dBc/Hz noise floor.
-
Alarm
outputs
-
Redundancy operation.
-
Time code
outputs such as IRIB-B, BCD, ASCII etc.
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RFS10F Specifications |
|
Description |
Specification |
-
Output Frequency
-
Ageing (after 30 days)
-
Accuracy at shipment
-
Allan variance 1 / 10
sec
-
Allan variance 100 sec
-
Spurious
-
Frequency Retrace
-
Settability
-
Trim Range
-
Warm-up time
-
Temperature
Coefficient
-
Magnetic Filed
-
Design Life
|
-
10 MHz Sinewave
-
< 5 x 10E-11 /month or
< 5 x 10E-10/year
-
< 5 x 10E-11
-
< 2 x 10E-11 (1s),
< 1 x 10E-11 (10s)
-
< 2 x 10E-12 (100s)
-
< -120 dBc (100 kHz
BW)
-
5 x 10E-11 (72 hrs on
/ 72 hours off)
-
< 5 x 10E-12
-
2 x 1oE-9 (bottom
panel) or 1 ppm (via RS232)
-
< 6 minutes to within
1 x 10E-9
-
5 x 10E-11 (-10
°C to +50 °C)
-
< 2 x 10E-10
for 1 Gauss field reversal
-
20
years
|
|
10 MHz
Outputs |
-
Number of
Outputs
-
Frequency
-
Accuracy
-
Signal Type
-
Amplitude
-
Harmonic
Distortion
-
Return Loss
-
Channel to channel isolation
-
Oscillator isolation
-
Phase Noise (dBc/Hz)
|
-
Five as
standard, ten with option 01
-
10 MHz
-
Same as main
Rubidium Reference
-
Sine wave
-
0 dBm to + 12
dBm adjustable
-
- 25 dBc
(-45 dBc with option 07)
-
> 20 dB @ 10
MHz
-
90 dB @ 10 MHz
-
130 dB @ 10 MHz+
-
-125 @ 10Hz,
-145 @ 100 Hz, -156 @ 1 kHz, -157 @ 10 kHz, -158 @
100 kHz. Lower phase noise options available to -175
dBc/Hz noise floor
|
|
1 pps
Output |
-
Connector
-
Frequency
-
Signal Type
-
Amplitude
(open circuit)
|
-
D sub
connector - rear panel
-
1 pulse per
second
-
Pulse Output
-
0 to 5V, TTL
compatible
|
|
Optional
1 pps Input |
|
|
-
BNC Socket on
rear panel
-
1 pulse per
second, TTL level
|
|
Miscellaneous |
-
Operating Temperature
-
Storage
Temperature
-
AC Power Inlet with switch
-
AC Voltage Range
-
Power Consumption
-
Width x Depth x height. /
Weight
|
-
-10 °C to +40 °C
-
-20 °C to +60°C
-
IEC320 power cord
-
100 - 240 VAC (usable 85 - 265 VAC)
-
140 W Max (warm up), 70 W
(operating)
-
482.6 x 330 x 88 mm / 7 kg’s
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