75mhz gear - Condition Red

[thor]

My opinion is the same as Dave's.

[cheapsub]

the support would be hard, there are 25 red wires but don't cut the wrong red wire, also the info are all over the place, love "open source" + fly boys, pick what we need and keep it KISS for us
the Chinese guy is giving it away and you ask for HOW MUCH! answer: I speak English!
i did post some how not to. is just not everybody's cup of tea.

you could buy all the parts to build it on ebay.

not just the TX RX stuff, you could DIY the whole radio inside and out!
( I get all the parts! but just seating there, any time now!)

Matt and Jeff, do you want to get your hands dirty?

pm me
Fung

[thor]

Fung,
Good to hear from you again! Exactly what are you proposing we build?

[cheapsub]

lot's of talk about moving to 433 mhz as a option, but......
Tim get me started, got the stuff play with it, manage the programing part, and it is not buy and play. BUT after all this years I am still in the building the dry dock face, sub are still in the box (just get 2 more), so I am the wrong person to push the subject.

So, I like to sent Matt (Jeff you could jump in any time) with the latest software( frist ouch gone) 433 mhz tx and rx to test it. If it is turn out to be pain in the ...., so we could close the case.

off topic
do you wish to make your own SubCommander computer transmitter.
start with this,

https://www.rcgroups.com/forums/showthread.php?2570260-AR-Universal-board

and add 3 magic beans
could someone tell me. Where is the best place to get a cow?

[JWLaRue]

So US ham licensing aside (not that I'm discounting this in any way), the only way any real move to 433MHz would work would be if someone were to offer a fully built and ready to operate system. No soldering, no programming required. If you want to tinker as an option, fine...but for the majority of anyone in this hobby, it just needs to work out of the box.

I'd love to get my hands 'dirty' in something like this, but I just don't have the cycles to take any sort of lead on this. I just barely keep up with the managing editor of the SCR job and some occasional r/c sub building. On the other hand, I would like to be able to support whomever can take the lead.

-Jeff

p.s. now if we could find someone to take on the SCR......

[tsenecal]

I am disappointed in the discussion here...

Andy has repeatedly told you that this mystical "wrap this in a bow for us" has already been done.

with the latest generation of equipment that is available, there is no soldering, no programming, no hacking about...

unless you want to

my laundry list for all that you need to get started in 433mhz, circa 2017:

one of these $105:

http://alofthobbies.com/frsky-taranis-q-x7.html

one of these $80:

http://www.hobbiesfly.com/transmitter-receiver/Transmitters/dtf-uhf-deluxetx-taranis-jr-turnigy-compatible.html

or these:

http://www.hobbiesfly.com/transmitter-receiver/Transmitters/dtf-uhf-deluxetx-transmitter-v2.html

and an antenna for it $25:

http://www.hobbiesfly.com/transmitter-receiver/Antennas/diamond-srh-771-uhf-antenna.html

as many of these as you need $30:

http://www.hobbiesfly.com/transmitter-receiver/Receivers/brotronics-4ch-remix-long-range-receiver.html

or

http://www.hobbiesfly.com/transmitter-receiver/Receivers/hawkeye-9-channel-long-range-receiver.html

and antennas for them $5:

http://www.hobbiesfly.com/transmitter-receiver/Antennas/1-4-mono-uhf-rx-antenna-90-sma.html

you can second source 433mhz antennas almost anywhere, for example, if you need a tiny antenna to fit inside a tiny sub:

http://www.ebay.com/itm/433Mhz-GSM-antenna-aerial-2-15dBi-SMA-male-50mm-long-for-UHF-long-range-systems-/271451179986?hash=item3f33c04bd2:g:i48AAMXQBPpR5P-~

put batteries in the transmitter, put module in transmitter, figure out how to activate external TX module instead of internal, set radio up to output sticks and switches the way you want, swap receivers, attach antennas, power on, bind, and you are done. - please note that all the steps about setting up the transmitter are steps you do ON the transmitter, ie "setup a new model", like you would on any computerized radio.

study for a week to take your Ham TECHNICIANS test (35 multiple guess questions), take test, pay your $10, you are good to go.


there are other brands of transmitters, modules, and receivers out there that you can buy, for slightly less, but what i have outlined above ships with the latest rev of all the software and firmware, for the lowest total package price, and the highest level of functionality with basically no effort beyond what you would need to do to get the same submarine working on 75mhz or 2.4ghz, and for less money than a good spektrum 2.4ghz radio with 8 channels. $370 vs $245

if you wanted to stay with 2.4ghz for planes or boats or cars or quads or helis, then the same transmitter has enough brains to handle anything, and its internal 2.4ghz module will work with $25-$35 2.4ghz receivers by the same manufacturer.


In the time it has taken you guys to fill two pages of forum about how tragic the 75mhz environment is, you could have done a google search and discovered all this for yourselves.

[tsenecal]

for those of you in Canada, who cant legally use 433mhz, there may still be hope... give me some time, there are other frequencies i haven't yet tested in submarines.

[JWLaRue]

Tim,

What you have listed and described is that last step I was referring to......someone needs to do that integration.

-Jeff

[scott t]

How about building a repeater to use the latest radio.
The repeater would have a attachment place for 2.4ghz receiver which would send its signal to a simple
75mhz transmitter.
The setup would still need a 75mhz receiver in the sub.
All the fancy computerized signals would be performed and sent by the 2.4ghz radio transmitter. The
repeater would convert it to 75mhz to be used by the sub.

I am no way a radio guy so this is probably stinky hot air.

[Guest]

If you're going to go to that trouble, you may as well come up with a new 75mhz tuner module, and cut out the middle man.

If a 75mhz module is what you are looking for, then perhaps the DIY R/C community might provide the answer, or at least part of the answer.

Worth investigating the crew involved in the Microstar TX project-

http://mstar2k.com/the-community

They developed RF decks for that project, and I think it might be possible to tweak the designs for 75mhz. Nothing ventured, nothing gained.

Also if the RF deck could be made to work at 40-41mhz, that would be popular with European modellers I think.

433/458mhz is a great format, but i can't ever see it gaining widespread acceptance in this hobby in the US, primarily because of the need for a HAM license. Here in the UK with no license needed it's used by only a handful, with most modellers sitting tight with 40mhz.

[bigdave]

I do want to thank Fung for sending me a package a few months back to experiment with the 433 system.
But I have not had a chance to do it yet. BD

[tommydeen]

If you're going to go to that trouble, you may as well come up with a new 75mhz tuner module, and cut out the middle man.

If a 75mhz module is what you are looking for, then perhaps the DIY R/C community might provide the answer, or at least part of the answer.

Worth investigating the crew involved in the Microstar TX project-

http://mstar2k.com/the-community

They developed RF decks for that project, and I think it might be possible to tweak the designs for 75mhz. Nothing ventured, nothing gained.

Also if the RF deck could be made to work at 40-41mhz, that would be popular with European modellers I think.

433/458mhz is a great format, but i can't ever see it gaining widespread acceptance in this hobby in the US, primarily because of the need for a HAM license. Here in the UK with no license needed it's used by only a handful, with most modellers sitting tight with 40mhz.

From what tim has shown me it leaves 75mghz in the dust and taking a ham test is no big deal. in the future when 75 is gone 433 may be the only game in town.
Btw the drone guys have been using those feq's for some time along with 5.8 gig for video

[thor]

Well, we we are going to see, Tom. I'm going to order the components and put it all together. I'm not the most savvy person in the world with electronics. If I can do it, I'll see what can be done about packaging this stuff all together ready to go.

[crueby]

From what tim has shown me it leaves 75mghz in the dust and taking a ham test is no big deal. in the future when 75 is gone 433 may be the only game in town.
Btw the drone guys have been using those feq's for some time along with 5.8 gig for video

What was better about it? Higher signal power for better water penetrating? Or some other features?

[tommydeen]

it has telemtry to monitor battery power on tx as well as rx, shaft rpm's,depth control,Heading, just to name a few that 433 is capable of.