Code Alarm SRT 1600 Manuel de l'opérateur Page 1

NEROC Haystack Observatory Undergraduate Research Educational Initiative Small Radio Telescope Operator's Manual

(Figure-2 Command Toolbar) clear - As the label implies, the clear button will clear the control console display of accumulated spectr

npoint - Initiates a 25-point scan/map of the source selected. The map is 1/2 beamwidth spaced and when finished displays a false-color, gaussian p

Drift - A left mouse click on Drift will offset the SRT in Right Ascension and Declination to allow the selected source to drift through the 7-degre

1.3.2 Message Board and Text Input (Figure-3, Message Board and Text Input) The command text-input box and the system message board are located a

1.3.3 Information Sidebar The information sidebar lists nearly all of the pertinent information the user needs to monitor real time observing wit

1.3.4 Sky Map The most obvious feature of the SRT control panel window is the sky map (Figure-5). The map shows full sky coverage in azimuth and ele

1.3.5 Spectral-line and Continuum Display Figure-6 displays the spectral-line plotting area of the SRT control panel. There are two spectral window

25-Point Map Display The third window in the plot area (far left square field) is the output display for 25-point spectral and continuum maps. When

1.3.7 Antenna Drive/Motion Status Display This box, at the upper left of the control console display, (Figure-9) shows the station name, latitude

Combination Manual and Button commands (preferred!) 1. Move the mouse to the source on the map and left click. 2. Move the mouse pointer to the tra

Abstract The Haystack Observatory Small Radio Telescope was developed as an educational tool to teach concepts of radio astronomy, mechanical and

LST:06:00:00 /wait until LST 06:00:00, taking data, before proceeding to the next line 2005:148:00:00:00 /wait until UT= yyyy:ddd:hh:mm:ss, before

1.6 Output Data Files The output data file (yydddhh.rad) is an ASCII text file. Data reduction on the raw output can be done with a spreadsheet pro

OUTPUT: 0514814.rad * STATION LAT= 42.50 DEG LONGW= 71.50 2005:148:10:55:41 92.0 5.0 0.0 0.0 1419.75 0.00781250 1 64 4.7 5.9 10.5

Haystack Observatory - - Small Radio Telescope Measure Antenna Beamwidth using the Sun as a Signal Source Introduction: The beamwidth of a radio

SRT Commands: Move the mouse pointer to the upper right of the control console and click the button labeled: Rcmdfl Move the mouse pointer

Azimuth Sun-scan02004006008001000120014001600180020002200240026002800-15 -10 -5 0 5 10 15Offset degrees (Az/cosEl)T(ant) degrees K Elevation Sun

Haystack Observatory - - Small Radio Telescope Measure Aperture Efficiency Introduction: Aperture efficiency η, is the ratio of the effective aper

LST 18:00:00 /select a time when CasA is at higher elevation : record filename /Start recording, filename is optional : azel 80 45 /Calibratio

This output plot is generated from analog receiver data. SRTD:srtjavascratchcasbeam2.rad 5 10 15 20 25 30 35 40 45 50 55 60

SRT Control Software Table of Contents 1. Software 1.1 Overview of Capabilities 1.2 Getting Started 1.2.1 Ori

1.1 Overview of Capabilities The SRT is capable of spectral line (1420 MHz hydrogen) and continuum observations using source tracking, 25-point maps

The syntax for compiling the SRT JAVA code is: javac *.java When you have compiled the code there are six run modes available to run the SRT softwar

SRT.CAT file * sample srt.cat file SIMULATE RECEIVER SIMULATE ANTENNA 10 * first word is key word * STATION: latitude longitude west in degrees * SAT

1.2.2 SRT Executable Software Package An installable/executable version of the SRT control software is now available for MS-Windows based operatin

3. Click on the SRT.CAT icon. This should open Notepad or another selected editor. 4. You will find a pair of SIMULATE keywords in the file. Insert

(Figure-1, SRT Console) 1.3 SRT Control Panel The user interface to the SRT is an interactive JAVA-generated window. The window consists of a 15