Wifi is soooo slow!

GaryQ

So, I am taking images of 6888. I am attached my home router and to the AA+. Am I supposed to do anything else other than that? I am downloading now at 210kb per second? It is taking 2-3 minutes for an image to download even standing next to the scope. I understand the images will download sometime during my life cycle, but a little faster would be neat. I thought wired LAN was supposed to be pretty good. Thanks for reading a repeat of above.

PMTeam@ZWO

GaryQ I am attached my home router and to the AA+.

How did you connect? Station Mode?

Hara

To where you downloading them? And using what software? I do not download big amounts of pictures from ASIAIR at all but attach an USB memory stick or SSD drive into it and copy pictures to it. In my opinion this connection, lan or wi-fi, is only for managing the ASIAIR, not good for transferring masses of huge pictures anywhere.

GaryQ

Hara Hello Sir, thanks for responding...I am not talking about the transfer of images to a USB Stick, that is quite rapid., I am talking about just seeing what is going on with the ASIAIR. The downloading of ANY information is so slow. Just to check on the quality of an image on the AA+ is very slow. It's a bit frustrating. Would a reset of the AA+ be worth a try? There is a lot of great info on this forum and I wanted to ask that before doing so.

Hara

So there is obviously some problem between your phone/pad and your home wifi-router? As far as I know, it is not possible to connect with ASIAIR app to ASIAIR using only LAN.

w7ay

@GaryQ Hara As far as I know, it is not possible to connect with ASIAIR app to ASIAIR using only LAN.

Not true.

Here is an ASIAIR with only a single LAN connection to a USB-C Gigabit Ethernet adapter to an iPad (older iPads will need an Ethernet to Lightning adapter).

Notice the iPad's screen (shows that an ASIAIR is discovered, with no network connection). I do not use WiFi, so the antenna port of my ASIAIRs are terminated with 50 ohm terminations (that golden connector on the ASIAIR across from the power connector).

When the Ethernet dongle is connected, the iPadOS Settings window looks like this:

I had purposely turned WiFI off to show that it is not using WiFi. Normally, you can just leave it on.

When it is connected to an active ASIAIR, drilling down in the Ethernet Settings show this:

If the ASIAIR Scan does not see the device, just use "Connect with IP" to the IP address that is shown in the iPadOS Ethernet settings window. Most often, ASIAIR scan will succeed, but as usual, the ASIAIR is buggy and sometimes don't see the LAN connection, requiring manual connection.

With a gigabit dongle, I get pretty much 90 MB/sec (720-ish Mbits/sec) speeds when I test through the ASIAIR's Samba server.

Chen

GaryQ

PMTeam@ZWO No sir, I did not connect the Station Mode. I've been looking for info on that feature.

Hara

Ok, I stand corrected. Similar concept didn't work with my Mac and ASIAir, so obviously there is something different with iPad and Mac.

PMTeam@ZWO

GaryQ
Some ways to help you optimize your ASIAIR network
1 Please keep your Wi-Fi antenna away from the USB 3.0 cable
2 If there is no complex wall between you and the device, it is recommended that you try 5G Wi-Fi
(App - ASIAIR - Wi-Fi - Frequency Band)
3 If conditions permit, you can connect ASIAIR to the router through a network cable. Connect directly to the Wi-Fi of the router, and open the App to find ASIAIR. (the fastest, most stable method)
4 Station Mode. App - ASIAIR - Wi-Fi - Station Mode. You can bridge ASIAIR Wi-Fi to your home Wi-Fi. Then connect to your home Wi-Fi and open the App to find ASIAIR

GaryQ

PMTeam@ZWO
Thanks for all that info. I have tried the ethernet cable but is very slow, I'm probably doing something wrong in the
hookup. I will try station mode tonight.
While you are answering questions, may I ask you a question about the Guiding graph? It's not a complaint but a
question about it's behavior. Thanks

PMTeam@ZWO

GaryQ You can ask any questions, if I know I will answer you.

GaryQ

PMTeam@ZWO
I tried the Station Mode 2.4ghz, works great, thanks for the simplified instructions for it. I read all the time that the
guide graph is not important, but that the stars are round. Guiding is great at the start and as it goes further into the night, things, (see logs)happen. I do not trust my mount, not that it is not working or anything, but, that it is so inconsistent. I can be guiding at .35 and 10 seconds later I am at 7.0. It takes 10-15 seconds for it to return to .5 or .4, but the stars stay round. It will do that again and the stars are long and sometimes the image looks like the mount was bumped, but it wasn't. I throw away about 5 images per session. What is it with the Dec on the graphs? I am learning to read the logs but somethings are beyond my knowledge. Thanks sir.

phd2-guidelog-2023-06-25-204552.txt

1MB

phd2-guidelog-2023-06-26-205029.txt

518kB

PMTeam@ZWO

There are many possible reasons for the brief instability of the guide star. The influence of wind, fleeting thin clouds, imperceptible external forces, etc.
The value stands for Root Mean Square of the error. But it does not necessarily mean that the smaller the value, the closer the star point is to a circle. If the errors are evenly distributed in all directions, the final image will still maybe a circular star point. But if the errors are concentrated in one direction, then even if the value is small, you can see elliptical star points.

DEC is Declination, which refers to the error in the direction of DEC in the chart.
https://en.wikipedia.org/wiki/Declination

Hope these things will help you
This is a blog of an experienced user.
https://eastwindastro.blogspot.com/2021/02/how-to-adjust-asiair-guide-aggression.html?m=1
This is the document of guide star software phd2. (You don't have to read all of them, just search for keywords if there is information you don't understand)
https://openphdguiding.org/documentation/

w7ay

PMTeam@ZWO If the errors are evenly distributed in all directions, the final image will still maybe a circular star point.

Actually, if the stars have independent Gaussian distribution (with same sigma) in just two orthogonal directions (for example the RA axis and the Declination axis), then you will still end up with round stars. This is the property of the Jointly Gaussian distribution. See here, for example:

https://www.seas.upenn.edu/~cis520/papers/Bishop_2.3.pdf

I.e., if the RA and declination axes have the same RMS error, over a long exposure, the stars will remain round (bloated, but perfectly round). (A corollary is that round stars does not mean perfect guiding; it can also be the result of more evenly distributed errors in the two mount axes; only a round unbloated star indicate perfect guiding).

This is why it is not always a good idea to reduce the declination error to zero, as it will produce the most obvious elongated star, while identical RMS error in both axis will result in perfectly round stars, albeit, bloated from the point spread function to sqrt( pointSpreadFunction² + RMSerror²).

Chen