What is ideal diameter copper wire to use for building a loop feed for hydrogen line radio astronomy?
Admin
wire dia : #18 ga or so is fine .. Nothing is exact .. or perhaps reworded ” It is impractical to attempt to derive an equation for the electrical…
April 2026
Alex Pettit’s Project: H-Line 3D:
Alex Pettit’s Project: H-Line 3D on Github: https://github.com/AP-HLine-3D/HLine3D
Ted Cline’s Easy Radio Astronomy (ezRA) Software Suite:
Ted Cline’s Easy Radio Astronomy (ezRA) Software Suite: https://github.com/tedcline/ezRA
How to point your drift detection hydrogen line radio telescope at the bright part of the Milky Way in Cygnus to test the performance of the system.
Many of the posts in the blog have discussed the development and use of hydrogen line radio telescopes, which work by pointing at the same azimuth and elevation, and on…
Cold Sky vs Hot Ground
Cold Sky vs Hot Ground: Here’s a quick test which will verify all is okay with your hydrogen line radio telescope: The difference between 10K cold sky & 290K Earth…
Problem with uploads of VLF data to SuperSID servers from LRO SuperSID device
Hi Andrew, welcome to the SID community! Your first data appearedtoday. Unfortunately, there are some problems with the data. Here’s anexample of what we have received: NEW/StMichaels_CUTLER_2026-04-15_000000.csvignoring bad data line:…
Obtaining the value to use for VLSR correction during analysis of amateur radio astronomy data from NRAO (Greenbank Observatory) website
https://www.gb.nrao.edu/cgi-bin/radvelcalc.py?UTDate=2026%2F04%2F11&UTTime=12%3A00%3A00&RA=20%3A23%3A00&DEC=40%3A00%3A00
Is 0.3dB going to equate to 50K antenna temperature signal over background?
Short answer: no – 0.3 dB does NOT correspond to a 50 K antenna temperature increase (unless your system temperature is very high). P2 / P1 = 10^(0.3 / 10)…
How do I set up my SuperSID VLF detector software so that data from the Stanford SuperSID device is uploaded to the Stanford SuperSID data server?
To get your SuperSID detector automatically uploading data to the Stanford servers, you only need to enable and verify a few configuration settings. The functionality is already built into the…
Detecting M31/M33 with 150cm dish
From Jason Burnfield: