Paul LilieFeed & Front End PDR-Solar 12-13 Feb 2002 1 Feed & Front End PDR Solar Observing.

Slides:

Advertisements

Similar presentations

Analogue to Digital Conversion (PCM and DM)

Advertisements

1 Figure 8.1 General structure of the feedback amplifier. This is a signal-flow diagram, and the quantities x represent either voltage or current signals.

Polar Loop Transmitter T. Sowlati, D. Rozenblit, R. Pullela, M. Damgaard, E. McCarthy, D. Koh, D. Ripley, F. Balteanu, I. Gheorghe.

Mid-Semester Design Review High Frequency Radio with BPSK Modulation.

NAIC Visiting Committee Meeting · February 19-21, 2007 Telescope Performance 2007 Visiting Committee Meeting Phil Perillat.

STARLight PDR 3 Oct ‘01C.1 Hansen STARLight Peter Hansen PROJECT OVERVIEW.

Introduction AD620 Instrumentation Amplifier

Information Capacity and Communication Systems By : Mr. Gaurav Verma Asst. Prof. ECE Dept. NIEC.

Jess UEAB 2006 Television Tuner. Jess UEAB 2006 Section of the Tuner VHF Tuner UHF Tuner Automatic Fine Tuning AFT Remote control.

Central Development Laboratory (Adapted from John Webber’s Viewgraphs, April 2002 Presented tonight by Skip Thacker) IEEE Tour April 2003.

HIAPER Cloud Radar Transceiver Exciter Receiver Oscillators High-Powered Amplifier Calibration Exciter Receiver Oscillators High-Powered Amplifier Calibration.

Superheterodyne Receiver RF Front End (Amps, Filters) Local Oscillator Mixer IF Strip (Amps, Filters) Channel SelectivityService Band Detector (Demodulation)

AuthorMeeting Title Date 1 EVLA Systems PDR Receivers/Feeds Daniel (Mert) MertelyEVLA System PDR:Receivers/Feeds 28 November, 2001.

Receiver Sensitivity Sensitivity describes the weakest signal power level that the receiver is able to detect and decode Sensitivity is dependent on the.

Notebook Telescope 1m BPF AR 5000 BPF FFT LO 21cm (1.42 GHz) IF 1 ≈152 MHz 10.7 MHz H2-Converter PSU COM RS-232 L-Band (Neutral Hydrogen, 21 cm / 1421.

Bob Hayward Receiver Engineer Feed & Front End PDR Feb Feed & Front End PDR Monitor & Control and Cryogenics.

Figures for Chapter 6 Compression

GBT Spectral Baselines – Tuesday, 11 March 2003 GBT Spectral Baseline Investigation Rick Fisher, Roger Norrod, Dana Balser (G. Watts, M. Stennes)

RF-FO Electrical Specification Jean-Marie Bussat John Joseph.

Student: Vikas Agarwal Guide: Prof H S Jamadagni

Calibration Ron Maddalena NRAO – Green Bank July 2009.

Tenth Summer Synthesis Imaging Workshop University of New Mexico, June 13-20, 2006 Antennas in Radio Astronomy Peter Napier.

P.Napier, Synthesis Summer School, 18 June Antennas in Radio Astronomy Peter Napier Interferometer block diagram Antenna fundamentals Types of antennas.

R. HaywardEVLA Feeds CDR - System Requirements 17 Feb EVLA Feeds CDR System Requirements.

R. HaywardEVLA Front-End CDR - System Requirements 24 April EVLA Front-End CDR Overview & System Requirements.

Paul HardenEVLA LO-IF CDR May 17, IF Subsystem Specs & Measured Test Data.

Jim RuffAntennas & Feeds PDR 2/12/02 1 Antennas & Feeds Mechanical Design Feed Cone Feed Mounting Horn Fabrication.

CHAPTER 2 Amplitude Modulation 2-3 AM RECEIVERS. Introduction AM demodulation – reverse process of AM modulation. Demodulator: converts a received modulated-

Basic Encoding Techniques

Wayne M. KoskiEVLA Front-End CDR – EVLA Receiver Monitor & Control April 24, EVLA Front-End CDR EVLA Receiver Monitor & Control F317 and F320 Modules.

Rick PerleyEVLA Advisory Committee Meeting September 6-7, 2007 EVLA Antenna and Array Performance Rick Perley.

R. HaywardEVLA Front-End CDR – EVLA Front-End Schedule 24 April EVLA Front-End CDR EVLA Front-End Schedule.

Bob Hayward Receiver Engineer Feed & Front End PDR Feb Feed & Front End PDR Q, Ka, K, Ku & X-Band Receivers Backup Slides.

S. SrikanthEVLA Feed/FE PDR February 12-13, 2002 EVLA FEEDS DESIGN S. Srikanth NRAO/Charlottesville.

CHAPTER 2 Amplitude Modulation 2-3 AM RECEIVERS. Introduction AM demodulation – reverse process of AM modulation. Demodulator: converts a received modulated-

AM RECEPTION Introduction

Student: Vikas Agarwal Guide: Prof H S Jamadagni

Author EVLA Feed & FE PDR 12/13 Feb, EVLA Receivers PDR RFI Issues Daniel (Mert) Mertely.

Paul Harden VLA Veteran EVLA LO-IF PDR 22 January EVLA IF/LO EVLA “LOW BAND” CONVERTERS For 4/P/L/S/C and Ku Bands.

Author EVLA Feed & FE PDR 12/13 Feb, EVLA Receivers PDR (4m, P,) L, S, C BAND RECEIVERS Daniel (Mert) Mertely.

Chapter 1 : Part 3 Noise. Noise, interference and distortion  Noise  unwanted signals that coincide with the desired signals.  Two type of noise: internal.

Travis Newton LO-IF Engineer EVLA LO/IF PDR January IF Downconverter Travis Newton LO/IF Engineer.

Q, Ka, K, Ku & X-Band Receivers

CHAPTER 1 Part 2.1  Noise.

Insert date here Presentation to 4 th PANI 3 Management Committee PANI 3 Results – Ultrasonic Results.

R. HaywardEVLA Feeds CDR – Project Budget & Schedule 17 Feb EVLA Feeds CDR Project Schedule & Budget.

Rick PerleyEVLA Front-End CDR – On the Sky Tests April 24, EVLA Front-End CDR On the Sky Tests.

Interferometric Gain Calibration for ALMA Jim Gibson and Jack Welch UC Berkeley RAL.

Bob Hayward Receiver Engineer Feed & Front End PDR Feb Feed & Front End PDR Hot Off the Press Q, Ka, K-Band Cost Savings.

Brief Introduction to Radio Telescopes Frank Ghigo, NRAO-Green Bank July 2015 Terms and Concepts Parabolic reflector Blocked/unblocked Subreflector Frontend/backend.

2016 RFIT Student Design Competition A. Competitor B. Competitor C. Competitor Affiliation 1.

EARTH SEGMENT & SPACE LINK

Methods of transfer of ultra-stable frequencies to radio telescope

Overview Calibration Exciter Receiver Oscillators

Chapter 15 - Principles and Techniques of RFID Positioning

Terry Cotter LO/IF Group Leader

LO/IF Switches Doug Scott

Observational Astronomy

Observational Astronomy

EVLA Front-End CDR – Solar Mode

EVLA Advisory Committee Meeting System Status

Photovoltaic Systems Engineering Session 10

PDR Guidelines The purpose of the PDR of an EVLA Subsystem is principally to review 3 questions: Are the top level performance requirements for the subsystem.

Feed & Front End PDR—Sys. Reqts

SINGLE CHANNEL PER CARRIER. TOPOLOGI  Point-to-point and bandwidth dedicated.  High speed  Minimum delay.

Digital Smart Stethoscope

AM-7027 Up Converter-Amplifier

AM-7026 Down Converter-Receiver

KFPA CDR R. Norrod Feb 27, 2008.

System Specifications Lab Tests

Presentation transcript:

Paul LilieFeed & Front End PDR-Solar Feb Feed & Front End PDR Solar Observing

Paul LilieFeed & Front End PDR-Solar Feb Solar Power Levels 1 SFU = 10 4 Jy = 1250 Kelvins at VLA Max. flare = 100,000 SFU “Normal” Tsys ~ 25 K = 0.02 SFU Max/Normal = 67 dB range. Receivers & Tcal must accept 67 dB range.

Paul LilieFeed & Front End PDR-Solar Feb Solar Block Diagram

Paul LilieFeed & Front End PDR-Solar Feb Power Levels in Solar Receiver

Paul LilieFeed & Front End PDR-Solar Feb Signal-to-Noise Ratio, etc.

Paul LilieFeed & Front End PDR-Solar Feb New Components Required “High Compression” amplifier (2) Isolators (3) Transfer switch (2) Noise amplifier (1) Cal step attenuator (1) 20 dB “solar” attenuator (2)

Paul LilieFeed & Front End PDR-Solar Feb New Components Required—Cost Note: very rough guess! L-band (1-2 GHz)$3k/antenna X-band (8-12 GHz)$5k/antenna Q-band (40-50 GHz)$20k/antenna Cost not included in plan

Paul LilieFeed & Front End PDR-Solar Feb May require solar cal on all antennas. Need accurate cal values at all levels. Need phase-invariant switching. Converter ALC range > 20 dB. ALC attenuators move to front of converters.