Hello, and thank you for being here.
I am going to try to attack this post a little differently then my last one on this subject.
The last time I posted i got a lot of negative feedback. Comments on the impossibility of
this task. Ok. This is where I am now. I know for certain what I am trying to do can be
done. Confident of that. So naysayers hold your tongue. I really would appreciate it.
The rover itself. Will be land based. Many things going on there that we can discussed but the
main thing is how to communicate with this rover. At first everyone said cellular
was the only option that was viable. I have found out otherwise. there are already two options
that i am aware of. PSK31 and, SDR, are there more ways? Is there a gentlemen among
us who is wise enough to oversee such a unconventional plan. It would help me tremendously
not to have to become an expert on one of these methods only to have brought my level
of understand up just enough to know that I pick the wrong method! ya trying to avoid
that. The expectations of this rover will be: GPS, Servo control, DC motor control, Solar
charging and, last and in no way least. Image relay. Still images? (probably, due to bandwidth).
As you can imagine everything would be kept minimal. Ideas on how this vehicle can remain
safe, travel oceans, return home and, other details such as this have also been worked out.
Well the return voyage not soo much, perhaps. Oh one other thing that was asked last time is.
why not use cellular? its the mere principle of establishing my own link. Owned and operated
by me or whoever else may attempt the same. I did see an Arduino satellite. easy to find.
really put alot of ideas in my head about SDR but wow. alot to take in... Hope to hear from you!
Thanks...

 

It seems that what you're after is an aerial drone that crawls on the ground. Like what a DJI Phantom can do only on wheels. So what you're wanting to do can be done, only I expect it took DJI quite a few weekends to pull it off. (Sorry if that sounded negative but you really are staring at a formidable project.)

 

I don't know if there's much to help you here, but you may enjoy the project's story.

http://makezine.com/2017/01/25/seacharger/

 

Wayneh. ugh ya that's awsome! Alot of the same spirit in that article. only thing is autonomous as you obviously where already aware of. Good read though. I enjoyed it. Any shortwaver's out there that know psk31 fairly well? Anyone that knows SDR could help alot too. Maybe there is a better section to ask this... Hope no one minds if I post again in a different catagory.

Wingsy. I believe the term rover is accurate. As where it will be able to spend time in operation without me. Anyone can correct me.

 

How would you get a wordwide frequency allocation for your communication using psk31 (Or any other mode.) ? I do not think you would be allowed to us any of the amateur bands for this sort of purpose. I had not heard of psk31 before so I looked it up. I dont think it would be suitable for your purpose. (An interesting coincidence is that I knew the inventor of psk31 G3PLX in the early 1970s as we both played around with RTTY communication.) SDR is just a different way of creating a radio receiver like a superregen or superetrodyne receiver.

Les.

 

well the basis of this concept is that if I can send an I or an O...(light bulb?) Really a simple high or low tone would suffice. Much the way old school dial up modems worked. So trickling data over psk31 is not if, Its how. Feasibility, Stuff like that. I thank you for your time but dam. Did I not state clearly NO NAYSAYERS!