1. Visual Inspection Check for: 2. Continuity and Resistance Testing Using a multimeter: 3. SWR Measurement Use an SWR meter or antenna analyzer at 1420 MHz: 4. Feedline Loss Test…
The following is an extract from https://fits.gsfc.nasa.gov/fits_viewer.html: FITS Image Software Packages for image viewing, analysis, and format conversion The following software packages display or manipulate the relatively simple class of…
The SDFITS single dish data format (https://safe.nrao.edu/wiki/bin/view/Main/SdfitsDetails#:~:text=Briefly%2C%20SDFITS%20is%20a%20convention%20for%20storing%20single-dish,freedom%20to%20add%20any%20additional%20columns%20as%20necessary): The SDFITS convention was developed in the late 1980s. An early version was used in the UniPOPS data analysis program and it was…
For M31, Wikipedia gave the following: M31’s Radial Velocity: The Andromeda Galaxy (M31) is moving toward us with a radial speed of roughly 300 km/s. (Sometimes you’ll see a value around…
https://www.gb.nrao.edu/cgi-bin/radvelcalc.py
The Ka band (pronounced as either “kay-ay band” or “ka band”) is a portion of the microwave part of the electromagnetic spectrum. The designation “Ka-band” is from Kurz-above, which stems…
Click below to download file – ZIP file that needs to be unzipped to get USR file for Spectrum Lab: https://www.astronomy.me.uk/wp-content/uploads/2025/03/LRO-M1Speclab_Settings_FunCube-Dongle-Pro_150325.zip
My first “map” of M31 – results of my first observing programme using the 20m dish at Green Bank Observatory. The spectra show a clear change in Doppler shift with…
; Exported "Conditional Actions" for Spectrum Lab if( never ) then # ====== User definable options ====== if( never ) then # SNR_Threshold - Minimum SNR in dB to trigger…
Recording by Michel Safir. The following recording is of an amateur radio communication in English from International Space Station (ISS) 17/4/2024. Astronomers on the ISS have access to amateur radio…
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