NOVATECH INSTRUMENTS

Rubidium Frequency Standard

Model 2950AR

Photo Last Modified January 10, 2001

The model 2950AR Rubidium Frequency Standard provides three simultaneous outputs of 10MHz, 1MHz, and 100kHz. The 2950AR contains an Atomic Resonance Rubidium Oscillator and is ideal for use as a master oscillator in laboratories and ground stations as well as for test and calibration.

The 2950AR Rubidium Frequency Standard offering has three versions. Dubbed the 2950AR/01, /02 and /03, these new versions provide additional output frequency capabilities. The 2950AR/01 provides three 10MHz outputs. The 2950AR/02 provides 10MHz, 5MHz and 100kHz, while the 2950AR/03 provides customer specified combinations of 10MHz, 5MHz, 1MHz and 100kHz (up to three simultaneous outputs). The same accuracies and specifications are maintained.

FREQUENCY STABILITY (˜)

Short Term	t=1s		<2.5x10-11
		t=10s		<0.8x10-11
		t=100s		<0.3x10-11

Aging		Monthly		<5x10-11 after 1 month
		Yearly		<5x10-10 after 1 year		

Temperature	-10 to +40C	<4x10-10

Line Voltage(˜ 10%)		<0.4x10-11

FREQUENCY ACCURACY

At shipment: <= ˜5x10-11 at 25C internal baseplate temperature.
Retrace: <= ˜4x10-11 of previous frequency after 24 hours on and up to 48 hours off (constant temperature).

SINEWAVE OUTPUTS

10MHz, 1 MHz and 100 kHz simultaneously

OUTPUT AMPLITUDE

1VRMS ˜ 0.25 VRMS into 50 ohms

OUTPUT IMPEDANCE

50 ohm ˜ 5%

PRONT PANEL INDICATOR LIGHTS

POWER Indicates power is on
RUBIDIUM LOCK Indicates output is locked to Rubidium Oscillator

SPECTRAL PURITY

All outputs (typ.): Harmonic: <-40dBc, Non-Harmonic: <-70dBc

PHASE NOISE

10MHz output, typical (dBc/Hz)
	Freq. Offset   	
	1Hz		-75		
	10Hz		-89		
	100Hz		-128 	   	
	1kHz 		-140		
	10kHz 		-147

ENVIRONMENTAL

Temperature: 5 to 40 C operating
Altitude: 2000 Meters Maximum
Humidity: 80% to 31C, decreasing linearly to 50% at 40C

SIZE

2.5" H, 7.3" W, 9.5" L excluding bail and feet

LINE POWER

120/240 VAC ˜10%, 50/60Hz. 35VA (65VA during warm-up, <= 10 minutes)

PRICING

Click here to see our price sheet.

Novatech Instruments , Inc.

P.O. Box 55997
Seattle, WA 98155 USA

206.301.8986, ntsales@eskimo.com, FAX 206.363.4367

Return to Homepage: http://www.eskimo.com/~ntsales.html
Technical Questions: novatech@eskimo.com