SARAO/TM/91/2022-23

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• Create Date August 2, 2022
• Last Updated August 2, 2022

Supply and delivery of Time Interval Counters be delivered in Cape Town Office

RFQ Number: SARAO/TM/91/2022-23

Closing date: 8 August 2022 at 11:00am

Location: 2 Fir Street, Times Media Building, Black River Park, Observatory, Cape Town

Lead Time: 7 working days after an official order

SARAO invites the submission of quotations for the following:

• 2 x Time Interval Counter equivalent to BNC1105 with the following key requirements:
  • - 2x input channels: DC – 350 MHz
  • - Selectable input impedance 1MΩ ± 1.5% or 50Ω ± 1.5%
  • - Selectable input coupling DC or AC
  • - Sensivity DC–100 MHz: 20 mVpk; > 100 MHz: 40 mVpk
  • - Frequency resolution of 12 Digits/sec
  • - 50ps time interval resolution
  • - Trigger source: Internal, external, bus, manual
  • - Timebase reference: Internal, external, auto
  • - Timebase ref impedance: 1k Ω, AC coupled
  • - Timebase ref lock freq: 10 MHz, 5 MHz, 1 MHz
  • - Internal timebase aging uncertainity: 30 days = ± 0.2 ppm
  • - Internal timebase aging uncertainity: 1 year = ± 1 ppm
  • - Internal timebase aging uncertainity: 2 years = ± 0.5 ppm
  • - Internal timebase temperature uncertainity: 0 °C to TCAL - 5 °C and TCAL + 5 °C to 55 °C = ±1 ppm
  • - Internal timebase calibration uncertainity: ± 0.5 ppm
  • - Comms Interfaces: LXI/Ethernet LAN and USB
  • - Time Interval triggering: Input A to B, Input B to A, Input A, Input B

SARAO-TM-91-2022-23 - TIME INTERVAL COUNTERS.pdf

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