Used Fluke 910R GPS Controlled Rubidium Frequency Standard

GPS Controlled Rubidium Frequency Standard

Order #: 910R-USED

Mfg #: 910R

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$7,489.00

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Used Fluke 910R GPS Controlled Rubidium Frequency Standard

GPS Controlled Rubidium Frequency Standard

Order #: 910R-USED

Mfg #: 910R

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$7,489.00

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Product Overview

Product Highlights

Unique traceability feature means no more re-calibrations
Two high-stability models to meet your application, and fit your budget
Up to 13 outputs, maximizing cost efficiency
Central or remote monitoring, management and data collection, using the 910/910R Ethernet-port
Two high-stability operating modes to suit your application
Designed for portability too
GPSView Software
With Optional 70: 5 extra 10 MHz outputs

Specifications

General Specifications

Operating Modes

Disciplined Mode:	The frequency deviation between the internal timebase oscillator and the received GPS-signal is used to continuously adjust the oscillator (disciplining). The resulting frequency offset and adjustment data is stored in non-volatile memory every 24h, to enable printout of the traceability record. The actual frequency offset (24h mean value) is calculated and displayed on the front panel.
Hold-over Mode:	The internal oscillator is not adjusted. This mode is normally automatically entered when there is no usable received GPS-signal. This mode can also be selected manually be activating the Manual hold-over key. If Manual hold-over is set together with a valid received GPS signal, the actual frequency offset is calculated and displayed plus stored in non-volatile memory every 24h.

Frequency stability - locked to GPS 910R (GPS-Rb)

Frequency offset (24h mean):	<1x10-12*
Short term (Allan dev.):	<1 x 10-12 (t = 100s)
	<3 x 10-12 (t = 100s)
	<1 x 10-11(t = 10s)
	<3 x 10-11 (t = 1s)
Warm up (+25°C):	20 mins to lock
*At temperatures 23°C + 3°C

Frequency stability - locked to GPS 910 (GPS-OCXO)

Frequency offset (24h mean):	<1x10-12*
Short term (Allan dev.):	<1 x 10-12 (t = 100s)
	<3 x 10-12 (t = 100s)
	<1 x 10-11(t = 10s)
	<3 x 10-11(t = 1s)
Warm up (+25°C):	20 mins to lock
*At temperatures 23°C + 3°C

Frequency stability – Hold-over 910R
(GPS-Rb)

Aging/24h:	<2 x 10-12 (typ.)
Aging/month:	<5 x 10-11
Temp. (0°C…+50°C):	<3 x 10-10
Temp. (23°C ± 3°C):	<2 x 10-11 (typ.)
Short term (Allan dev.):	<3 x 10-12 (t = 100s)

Frequency stability – Hold-over 910
(GPS-OCXO)

Aging/24h:	<3 x 10-10
Aging/month:	<3 x 10-9
Temp. (0°C…+50°C):	<2.5 x 10-9
Temp. (23°C ± 3°C):	<4 x 10-10 (typ.)
Short term (Allan dev.):	<1 x 10-11 (t = 100s)
	<5 x 10-12 ( t = 10s)
	<5 x 10-12 (t = 1s)
Warm up (+ 25°C):	10 minutes to 5 x 10-9

Phone Noise - 910R

Offset	Phase Noise
1 Hz:	-80 dBc/Hz (typ.)
10 Hz:	-90 dBc/Hz (typ.)
100 Hz:	-130 dBc/Hz (typ.)
1 KHz:	-140 dBc/Hz (typ.)
10 KHz:	-140 dBc/Hz (typ.)
100 KHz:	-145 dBc/Hz (typ.)

Phone Noise - 910

Offset	Phase Noise
1 Hz	-100 dBc/Hz (typ.)
10 Hz	-120 dBc/Hz (typ.)
100 Hz	-130 dBc/Hz (typ.)
1 KHz	-135 dBc/Hz (typ.)
10 KHz	-135 dBc/Hz (typ.)
100 KHz	-135 dBc/Hz (typ.)

Reference outputs (BNC)

10 MHz:	sine wave, 0.5V rms in 50O
5 MHz:	Sine wave, 0.5V rms in 50O
2.048 MHz (opt. 75):	+/-1.2V +/-10% in 75 ohms (G.703:10)
1 pps:	TTL-levels; low < 0.4V, high > 2V in 50O load
Pulse output (opt. 75):	TTL-levels; low < 0.4V, high > 2V in 50O load

5 additional 10 MHz outputs (option 70)

See specification for 10 MHz above

Multiple Reference outputs (option 71)

Sine wave outputs:	10, 5, 1 and 0.1 MHz >1 Vrms into 50 Ω
Pulse output:	0.1 MHz; >3 Vp-p into 50 Ω. 0 V =LO <0.8 V, 3 V

10 MHz and 5 MHz & 2.048 MHz (opt 72) outputs

Freq. Stability:

See frequency stability specs for 910 and 910R

5 additional 13 MHz outputs (option 73)

Impedance:	50 Ω
Output signal:	TTL (symmetrical)
Typical levels into 50ƒn Ω	High voltage: 2.35 V
	Low voltage: 0 V
Risetime:	10 % - 90 %: 2 ns
Jitter:	< 0.01 UI
Long term stability:	Same as main reference

1-pps output (locked to GPS)

Duty Cycle:	Approx. 20%
Jitter:	<60 ns rms relative to UTC or GPS (position hold, SA on)

Pulse output
(option 75)

The frequency is set via the included PC-program
Selectable frequency:	1/(N x 10-7) Hz, N is an integer
Factory default setting:	1 Hz
Duty cycle:	50%
Jitter:	<500 ps rms
Freq. Stability:	See frequency stability specs for 910 and 910R

Ethernet interface
(option 76)

Communication Port:	Connector: RJ45
	Protocol: 10Base-T
	Buffer RAM: 1 kbit
Configuration Port:	Connector: Dsub9, RS232

Internal data storage

24h-freq. Offset:	2 years data, non-volatile memory
Adjustment data:	2 years data, non-volatile memory

Controls

Manual
Hold-over:

Inhibits automatic GPS-adjustment and forces hold-over operation. This increases the short-term stability, when the internal Rubidium- or OCXO-reference is free running without any correction from the GPS-monitoring system.

LED Indicators -
Locked to GPS

ON:	Disciplined mode
OFF:	Hold-over mode

LED Indicators -
Alarm

ON:	Alarm condition reported by instrument hardware. Explanatory text in 7-segment display area advises.
OFF:	Normal operation

LED Indicators - Manual Hold-over

ON:	Forced hold-over mode. If GPS signal is valid, the 24h frequency offset is displayed. Otherwise "-----" is shown.
OFF:	Automatic choice of disciplined or hold-over mode depending on "Locked to GPS" status.

GPS-receiver

Antenna connector:	Type N
Channels:	8, parallel tracking
Carrier, code:	L1, C/A

Antenna (option 01)

Type:	active L1
Operating temp.:	-40°C to +70°C
Height:	81 mm (3.2") (excl. connector)
Weight:	>30 dB
Gain:	TNC

Antenna cable
(option 02)

Type:	RG213
Length:	20 m
Connectors:	N-type and TNC (male)
Cable delay:	101 ns.
Attenuation:	Approx. 8 dB at 1.6 GHz

PC-connection

Interface:	RS-232, DTE
Connector:	9-pin male DB9, Rx on pin 2, Tx on pin 3, GND on pin 5
Baud rate:	9600 bps
Data structure:	8 data bits 1 stop bit, no parity

Fan

Temperature controlled

Environmental

Temperature:	0°C...+50°C (operating)
	-40°C...+70°C (storage)
Safety:	Compliant to CE: EN 61010-1 + A1 (1992) + A2 (1995)
EMI:	Compliant to CE: EN 1326-1 (1997)

Power consumption

Line voltage:	100...240 V (±10%)
Line frequency:	47..63 Hz
Power 910R:	<75 W at warm-up <35 W continuous operation
Power 910:	<25 W at warm-up <12 W continuous operation

Calibration Documentation

Statement of calibration practices

Size

WxHxD:	315 x 86 x 395 mm
	12.4" x 3.4" x 15.6"

Weight

910R	4.4 kg net, 7.4 kg shipping (9.7 lb net, 16.3 lb shipping)
910	3.9 kg net, 6.9 kg shipping (8.6 lb net, 15.2 lb shipping)

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Used Fluke 910R GPS Controlled Rubidium Frequency Standard

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