half duplex tranmsission

[Clats97]

Ok, did you bring the gain up from nothing?

Gain is 27 because I was told that's a good starting point

 

[dickie757]

If you wanna get good'n ****ing dirty, check this bastard out....be prepared to pull all your hair out

PySDR: A Guide to SDR and DSP using Python

pysdr.org

 

[Clats97]

If you wanna get good'n ****ing dirty, check this bastard out....be prepared to pull all your hair out

PySDR: A Guide to SDR and DSP using Python

pysdr.org

Once I see the word "Python" I'm out, whether you're talking about snakes or computer language LOL

 

[dickie757]

How did you even find out about Pluto? Go back there to get gobs more info. I'm not trying to admonish, but seriously, where did you learn about it?

 

[belvdr]

I don't see what I set myself up for. I'm asking a simple question, answer it, or don't. Don't link me to something I could have come to on my own. I'm trying to pick at people's brains, not read manuals. That's not how I learn. Welcome to the world of "not everyone is like me and learns the same way I learn"

What makes the difference if you read something here or in a manual? It’s still reading. You could have found the manual but you didn’t try. That’s what how you set yourself up.

 

[mancow]

Once I see the word "Python" I'm out, whether you're talking about snakes or computer language LOL

I thought the same until I dug into it. Python is really very easy to learn.

 

[mancow]

Yes because when someone's asking a question, there's a reason. If I could get my answer elsewhere, I would, BELIEVE ME. You guys are so cold, and basically are accusing me of doing illegal things although you've danced around actually saying it. I'm not up to no good. I'm trying to understand radio better so I'm asking questions IN A RADIO FORUM. Is that not the point of forums? For people to ask questions? The last time you told me it's in the manual, it wasn't, and I proved it, and you got salty then an admin locked the thread.

I don't know why anyone would think you are doing anything illegal. I assumed you were just curious how it works.

 

[mmckenna]

I doubt you are doing anything illegal with 5mw. Not sure what the rules are in Canada, but in the US, that would probably fall under Part 15.

As for not being able to see the output, are you using the internal spectrum analyzer, or are you trying to link it to something else. It only puts out 5mw, so it's not going to travel far.

 

[wtp]

i think the mixer/I.F. on my old radios put out more.

 

[Clats97]

How did you even find out about Pluto? Go back there to get gobs more info. I'm not trying to admonish, but seriously, where did you learn about it?

It was mentioned as being the best device for the software I'm using... Apparently at one point the adalm was the only compatible one until they added the rtls but you could only use the SA which is 1/3 of what it can do. So I bought it to unlock the features I wanted lol

 

[Clats97]

What makes the difference if you read something here or in a manual? It’s still reading. You could have found the manual but you didn’t try. That’s what how you set yourself up.

Manuals do a ****ty job at explaining stuff, and always have. At least for me.

 

[Clats97]

I doubt you are doing anything illegal with 5mw. Not sure what the rules are in Canada, but in the US, that would probably fall under Part 15.

As for not being able to see the output, are you using the internal spectrum analyzer, or are you trying to link it to something else. It only puts out 5mw, so it's not going to travel far.

Can you explain why when I plug in the ADALM PLUTO and open its software, satsagen, and go to the signal generator and type in 400mhz... Turned on my physical spectrum analyzer and it didn't show a peak at 400mhz.... So how is it transmitting?

 

[Clats97]

Technically, it is full duplex, as it can listen while it transmits.

It is a low power, high bandwidth learning tool. They are not meant for measuring anything, nor communication. They have a FPGA that responds to SSH, telnet, TCP/IP, and a bunch of other crazy neat stuff.

Now, I have never said this in any thread on the internet before now: don't transmit without an antenna, nor on a frequency that you don't have privileges or a license. The included jumper cable can overcome the previous statements physics-ly and legally.

And, damn old timers with their short posts ninja'ing my links.

Edit: I have one, and am still learning

Can you explain what half duplex is? I went to signal generator and typed 400mhz and turned it on, turned on my physical spectrum analyzer and it didn't show anything. If I attach the cable it does.

 

[Clats97]

I don't know why anyone would think you are doing anything illegal. I assumed you were just curious how it works.

Trust me policescanner.ca man aka Renfrew thinks I'm a jammer, illegal operator, so many things he's accused me of. Real nice guy....

 

[dickie757]

I doubt you are doing anything illegal with 5mw. Not sure what the rules are in Canada, but in the US, that would probably fall under Part 15.

As for not being able to see the output, are you using the internal spectrum analyzer, or are you trying to link it to something else. It only puts out 5mw, so it's not going to travel far.

This Pluto gizmo is like a baofeng. It can be connected to an amp really easily.

It is a learning device.

I think a wide open device like this and a baofeng are great learning devices for the truly inclined. A baofeng helped me become and understand how to be a amateur operator. Since a wide open device can cause interference, and one of the tenets of ham radio is cause no interference, I had to pay extra attention to how I operated my Part 90 baofeng.

Granted, Mr Clats97 isnt gonna do anything *intentionally* to cause life threatening interference, it is not out of the question.

Anytime I key up my Pluto, its on a part 97 freq. The power doesn't matter.

Here's one for you....I had a QSO on 146.58, clear as nextdoor, but 70 miles LOS, on 50 mW. It didn't even register on my power meter.

 

[mmckenna]

Turned on my physical spectrum analyzer and it didn't show a peak at 400mhz.... So how is it transmitting?

I went to signal generator and typed 400mhz and turned it on, turned on my physical spectrum analyzer and it didn't show anything. If I attach the cable it does.

Maximum it says it'll put out is 5mw. That's not a lot. If it works with a cable between the SDR and the spectrum analyzer, then it's working.
You should be able to set up the SA to show you the signal level. Use that, minus the feed line losses, and compare to what the manufacturer says it's supposed to put out.

Not sure what your level of familiarity is with this product, but it's not designed to be a two way radio, it's designed as a lab tool for those learning RF. It's specifically designed to not transmit very far.

 

[Clats97]

Maximum it says it'll put out is 5mw. That's not a lot. If it works with a cable between the SDR and the spectrum analyzer, then it's working.
You should be able to set up the SA to show you the signal level. Use that, minus the feed line losses, and compare to what the manufacturer says it's supposed to put out.

Not sure what your level of familiarity is with this product, but it's not designed to be a two way radio, it's designed as a lab tool for those learning RF. It's specifically designed to not transmit very far.

Oh I'm not using this to transmit voice lol. I need it for other things. Especially the spectrum analyzer

 

[dickie757]

@Clats97 I highly suggest studying for a ham radio license.

But, radios are classified simplex if they do one thing. That could be transmit OR receive, but not both. Half duplex means they can do both xmit and receive, but not at the same time. Full duplex means they can tx and rx at same time. And depending on how much money you spent, how close to the same frqency.

 

[Clats97]

@Clats97 I highly suggest studying for a ham radio license.

But, radios are classified simplex if they do one thing. That could be transmit OR receive, but not both. Half duplex means they can do both xmit and receive, but not at the same time. Full duplex means they can tx and rx at same time. And depending on how much money you spent, how close to the same frqency.

Yes but it's in the context of signal generators. Not radios. There's no PTT here.

 

[Clats97]

@Clats97 I highly suggest studying for a ham radio license.

But, radios are classified simplex if they do one thing. That could be transmit OR receive, but not both. Half duplex means they can do both xmit and receive, but not at the same time. Full duplex means they can tx and rx at same time. And depending on how much money you spent, how close to the same frqency.

Norm gave me the whole ham course. I tried it, but it was hard. I'll be a ham one day. I'm talking about my ADALM PLUTO transmitting half duplex. I wanna figure it out. I'm stuck.