eBay
Efratom
LPRO101

Rüsten Sie Ihren Zähler auf, - extrem preisgünstig und sehr genau, - - quasi "zum Preis einer Quarz - Zeitbasis":

Datum / Efratom LPRO-101 Rubidium Frequenzstandard
    Technische Daten:
  • 10 MHz Sinussignal
  • 1.5 " Bauhöhe
  • < 5x10e-11/Monat Alterungsrate
  • Betriebsspannung: 24 V DC, weiter Toleranzbereich (19 ... 32V)
  • Alarmsignal für Rb Unlock
  • Kann in viele Zähler eingebaut werden, Abmessungen nur 138 x 95 x 38 mm







just test for 24hour later..not very good ,need some more time.

Frequency Drift Rate = -55.37 nHz/sec; -4.784 mHz/day; -5.537E-15/sec; -4.784E-10/day;

MTIE
TDEV

Tau=4.990 sec; Root Allan Variance=3.801E-9
Tau=9.947 sec; Root Allan Variance=2.690E-9
Tau=99.15 sec; Root Allan Variance=8.354E-10
Tau=1.019 ksec; Root Allan Variance=2.752E-10
Tau=10.00 ksec; Root Allan Variance=1.694E-10



The LPRO is designed for long operating periods without maintenance (long life Rb lamp, extended crystal control range) with a goal to exceed 10 years. The design provides a stable frequency with good short and long term stability, and excellent spur performance.

PDF format manual for this module



http://www.symmetricom.com/media/pdf/manuals/man-lpro.pdf





Key Features
10 MHz Sine Wave
1.5 Inch Total Height
<5e-11/month Aging
Single 24 Vdc Supply; Wide Operating Supply Range (19 to 32V)
Alarm Signal for Rb Unlock
Meets TDMA and GSM Frequency Requirements Without an External Reference or Routine Calibration
CE Compliant



this item is in china .shipping by TNT or DHL to worldwide

shipping payment is $35

 

Must item arrived within 4 days by TNT


We test all the Rubidium Oscillator before delivery. The pictures below shows one sample. What you will get is orininal sealed(already tested and calibrated in our lab)

MY test lab

 

EFRATOM/DATUM LPRO-101と言うルビジウム原子発振器(Rb-OSC)

LPRO-101 to +7 dBm output level is about that, LPRO-101 and IC-7800 has been adjusted to include a level between the attenuator. IC-7800 is the largest built-in attenuator-21dB has been fixed. 
Lpro101_spurious_20db





   

--------------------------------------------------------



 

 




 



following spec from http://www.leapsecond.com/museum/lpro/  Thank you for tvb

Data Files

[2005-07-08 09:15:46] 1,013,412 log20696.txt 84451 seconds (= 23 hours)

Stability from Tau 0.1s to Tau 20k

Comparison

Stability of 4 rubidium frequency standards:






Am 20.03.09 hat der Verkäufer die folgenden Angaben hinzugefügt: