I have been using the 915mhz telemetry v2 units with my Pixhawk for a while now. One of them is not giving the range that it used to and I need a replacement.
I varified the range with the use of my Fighting Walrus iDrone Link and one unit is getting about 100m range while the other is getting good signal to where my hexacopter is just a spec in the distance.
Problem 1:
I can not get hold of Fighting Walrus any more. They have not answered my emails since about October of 2015. I am assuming they are no longer active? (also no updates to their iOS app for almost a year)
Problem 2:
3DR are no longer making their 900 or 433 telemetry units. (verified vie an email to them)
"Hello Justin,
Thank you for contacting 3DRobotics customer service.
We apologize for the inconvenience. Unfortunately, we do not have the Telemetry available anymore since they have been discontinued, both the 915 and 433."
I am using a Nexus 7 v2 Tablet with the Tower App (great app by the way)
Question:
Other than the $250 long range 900mhz kits (I don't need/am not allowed to use super long range) or $10 knock 3DR off kits from China (gamble as to whether you get a good one/no warranty), what options are there that are "PnP" ?
I am using a Taranis Plus TX with x8r RX and could use that telemetry but then there is no way to load missions in the field.
Thanks for input
J
Replies
There have been some issues when you plug modem directly to your USB port. This can happen due various reasons, interference from USB port, interference from display, power systems etc from computer itself, RF being blocked by components inside the computer etc..
As far as I can see, MBA can cause even more problems for the reception as it has been made from solid aluminum and if your laptop is between your receiving and transmitting modems.. For sure there will be signal issues.
None of our modems are connecting directly to computer with USB connector. All our Ground modems have long USB cable that you can attach/detach and you can easily mount modem for example behind your display in way that antenna is over the display or put it on table or have it on separate stand.
Another thing on those modems is that HopeRF modules aren't really meant for long-range communications and they are not made by RF people. Originally those modules was intended for close range communications like between devices inside houses etc. Our Devs just were able to extend their ranges with custom made software and we were able to replace old Zigbee based telemetry modems.
On the other hand, jD-RFxxx radio modules are made by professional RF people who have been working on field of RF technologies over 20 years and they are designed to work as telemetry modems and for long-range.
There's a nice video made by Trent/MyGeekShow to show difference between 3DR and jD-RFxxx ranges.. I think jD-RFxxx test was starting somewhere at 4:20 areas.. But better to check whole video to see it all.
NOTE! On Trents video he had old type modems, now they all have detachable cables!! And extra filtering etc inside to make even better those..
ahh yes that's right ,,, that is where I got one of my RF900. I forgot you made the 100mW version.. excellent :] The antenna's you have are WAY better than HK as well.
I think I got one here as well in all fairness http://store.rfdesign.com.au/rfd-900p-modem/
I've had really good luck with this antenna as well http://www.droneshop.biz/radio-gear/telemetry/900mhz-3dr-radio-tele...
I think innovators are never commercially successful. You'd be a fool to believe Bell invented the telephone or Edison invented the light bulb. The inventors have slipped into obscurity, and we celebrate the people who stole those ideas and commercialized them.
Most of the people involved in 'drones' up to this point were the innovators. I wish everyone the best!
May be true - but that's the whole idea. 3DR was supposed to be those later people who were commercializing them. They stated dozens of times that they were going to be the biggest and the best and control the market. They still compare themselves to google and android. That takes more than a bit of hubris IMHO.
Lots of innovators did profit from their stuff - Fulton (steamboat), Metcalf (ethernet and more), Bill Joy (BSD) - the list goes on.
But the truism still stands. I remember when I heard that only 1 out of 250 (or was it 2,000) patent holders benefit from their patent in any financial manner. Those are tough odds. In the Venture Capital world the odds are also very low. Even in regular biz it tends to be only 1 in 5 that makes the grade.
Can't fault anyone for trying. However, there comes a time to stand back and look at the metrics and see if the goals are being met.
Have you flown a Solo, how many flights/hours?
I have read the posts and I understand. Four years ago, when I started, the current drone frenzy was only a pipe dream. Back then Micocopter was the only available, "off the shelf drone," If you wanted a quad then building it was the best option.
My question: It was my understanding, perhaps mistaken, that 3dr sponsored the DIYDRONES website. As such, discussion and support was centered around 3dr products. Without DIYDRONES we don't have a community. Is this website in jeopardy?
If this site is not centered on 3dr products then well we all discuss all other flight controllers?
Rob is dropping out, and the remark is, "I hope the site can maintain itself." So the developers are jumping ship?
Worried about the future...
I'm not. As a developer, I don't worry about the future. The future is just constantly evolving, and I plan to evolve with it :-)
As long as the DIY drone enthusiast is not "involved" in the "evolving" right?!
http://diydrones.com/group/arduboat-user-group?xg_source=activity
http://diydrones.com/profiles/blogs/last-sell-for-many-legacy-3dr-p...
http://diydrones.com/forum/topics/notification-my-community-support...
As soon as the "New Gen Pixhawk" is out, there will be no more up to date DIY from 3DR it seems.
You guys make great stuff. WTF is going on at 3DR?????
J
They have clearly said no more DIY.
They have also indicated they are not into consumer quadcopters any longer - Solo never gained traction or market share.
Read between the lines. That means they are not the old 3DR nor the new one. Rather they are looking for a direction to go to salvage some of the work done and money spent.
Just curious where you read this?
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