The aggregate M31 signature is at a redshift of roughly -500km/sec, or centered at about 1422.77MHz -- which is off your chart.

#1420mhz #21cm #radioastronomy

That signal will be somewhere around 1422.5MHz--right off the edge of your chart.

#1420mhz #21cm #radioastronomy

Yes, the visible signal is certainly generated by interstellar material belonging to our galaxy.

#1420mhz #21cm #radioastronomy

You are definitely receiving Hydrogen line emissions from within this galaxy. Since M31 is moving relative to us I would think you would need to look about 3 MHz higher or lower to see Hydrogen line e

#1420mhz #21cm #radioastronomy

I tried receiving the hydrogen line in the direction of M31 but I can't solve the signal, evidently the s / n ratio is still low. The first image in the frequency domain, the second in the speed domai

#1420mhz #21cm #radioastronomy

I'm very confused by your bandwidth comments here. I don't know much about SDR#, but if it shows a couple of MHz around the notional line frequency of 1420.40575MHz, and allows deep integration, then

#1420mhz #21cm #radioastronomy

That hump is likely the hydrogen line signal. What size is your horn antenna? NRAO has a fairly full collection of tutorials on basic radio astronomy, including discussions of integration time. Also,

#1420mhz #21cm #radioastronomy

1) What is the aperture of your horn? 2) How much gain do you have after the two LNA4ALL preamps? 3) What is the loss of your BPF for 1420? 4) What is you detection bandwidth? 5) What is the loss of y

#1420mhz #21cm #radioastronomy

I have the Airspy Mini and I have built a horn antenna, I'm using 2 LNA4ALLs and a 1420-1470 MHz bandpass filter in between them. I think I have picked up the hydrogen emission signal. I would like to

#1420mhz #21cm #radioastronomy

I would love to see the Astrospy program have a feature to periodically log data to a file with a a timestamp. It would be such an obvious feature to add. Dan

#21cm #1420mhz #radioastronomy

Hi Dave, I am also part of an astronomical observatory, Tavolaia astronomical observatory. http://www.cielisutavolaia.com/ Recently we have built a B0329 + 54 pulsar reception system, the data is publ

#21cm #1420mhz #radioastronomy

There are actually a fair number of us doing RA with the AirSpy. That SDR is the center of our receiver at the Little Thompson Observatory in Berthoud, Colorado, USA (starkids.org). I'd encourage you

#21cm #1420mhz #radioastronomy

hi guys, in this my first message I would like to revive this topic to find out how many people are interested in radio astronomy. I am an Italian radio amateur who is dedicated to finding practical s

#21cm #1420mhz #radioastronomy

Your server is working well today, thanks for sharing. Michael D Tuolumne California

#spyserver #airspyhfplus #radioastronomy

Hi there I have a Airspy HF+ online since a couple of months . The Servers is to be found in the adress: sdr://spyserver.thulesius.se:5555/ Antenna : 30 loop QTH : JO89UL 30 km north of Stockholm Plea

#spyserver #airspyhfplus #radioastronomy

I too have requested the same feature for Astrospy. Has I understand it, it would be an easily added feature. Dan

#radioastronomy

Dear Developers Long ago we requested the feature for data logging out of AstroSpy and we received the answer, that all the development power was focused on the release of the HF+. Because the HF+ is

#radioastronomy

Dear Developers Long ago we requested the feature for data logging out of AstroSpy and we received the answer, that all the development power was focused on the release of the HF+. Because the HF+ is

#radioastronomy

I would like to get in on this, but from a blind persons perspective. I know the H1 line is far wider than what the human ear can hear, but my ears can probably pick up something in a sound scape that

#waterhole #seti #RTL #radioastronomy #21cm

Thank you, Robert for all the invaluable information! I belong to several technical google,io groups other than AirSpy. They have all migrated from the older yahoo groups which are going away, if they

#waterhole #seti #RTL #radioastronomy #21cm