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jonpet55

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Everything posted by jonpet55

  1. The dimensions of the board is 9x5cm - weight is still unknown. Vova says the board will have full waypoint capabilities before the end of july. The variometer is only based on GPS readings. A GPS is pretty accurate on relative vertical movement, but not absolute. As said, there is no AHI. Optional sensors has not been announced, and will most probably never be.
  2. eickst: I would have said the same as you a month ago. Sorry to say I don't have that opinion anymore. I ordered a pan/tilt kit for my TSII which I've been waiting for allmost 3.5 weeks. Still haven't got it, and vova doesn't respond. I guess it will be worse after the release of this OSD. Terry: The number of commercial OSD-solutions has exploded the last few years, so yes, I'll guess the prices will fall.
  3. Well, I was expecting someone would mention that. At first I'll say I wouldn't have done this with a bigger plane, and the only reason I did it was because I find the plane pretty harmless. It is a very slow and lightweight plane, but I can agree it was a little bit on the edge if I knew I was going to get these problems - which was not expected at all. My future plans is to make a rudder-home system, so this would probably not happen again. I will also fly in the opposite direction, which is over a forest.
  4. I have just finished my new ground station. I found out it was much better controlling the plane from my room due to multiple reasons: - I don't have to carry all my gear to the field - I can use monitors instead of googles - the sun shining into the monitor is no longer a problem - I can sit on my chair - much better comfort Enough talking, here is some pictures: http://jonpet55.latestdot.net/projects/con...anel/index.html http://jonpet55.latestdot.net/projects/ant...anel/index.html For more information, look at http://skagmo.com/fpv.htm This is my latest video. Th
  5. Rangevideo has just released their first OSD-solution. This one looks really good - with autopilot as well. I think this will be a hard competitor for the Dragon OSD! http://www.rangevideo.com/index.php?main_p...products_id=135
  6. I'll try to make the tracker before the the season ends. BTW the weather is just perfect here. I haven't seen a cloud in about a week. Now it's 18°C in the sun (9°C in the shadow), and allmost no wind - perfect weather for flying! I've heard the rain is coming again tomorrow though.
  7. Haha. You sure haven't forgotten that antenna tracker. But you are absolutely right, the tracker was actually the reason I started this project, so I should start on it pretty soon - just don't know when. At least I need to fly the TSII in FPV and mount the gear in the plane, then I can start thinking about the ground station.
  8. Thanks headhunter23 I flew the plane today as well and it was easier this time, probably due to less wind, less nerves and a better pilot. The plane didn't fly as fast today. Just the right speed for me. Last time it was actually pretty windy (today it wasn't any wind at all), so thats the reason why I got the extra speed. I was pretty close on crashing today. The problem was that I flew the plane a little too long, and suddenly one of the ESC's cut off due to low battery voltage. I couldn't see that one of the propellers had stopped, so I didn't understand why the plane started to drift to o
  9. WOW! I just flew the TS2 for the first time, and it was insane! I'd never imagined it was so fast and responsive. Lucky for me the kids in the area had just left, so I was alone when I started flying. I threw it into the air with full throttle, and wasn't prepared for the speed at all. I also had way too much response, but didn't dare to look down on the DX7 for the D/R-switches. I tried to think where the switches was located (just switched to the DX7, so I'm not used to the radio yet) and steer the plane at the same time. After a few seconds I remembered, and enabled D/R on ailerons an
  10. I tried to test the gear yesterday. I put it all in a Java 150 electric glider, but the thing dropped like a rock... The motor was way too small anyway, so I've ordered a motor giving more than twice the thrust. Hopefully I will maiden the TSII very soon as well. Have to wait till I get some grass to land on (the snow has just melted away).
  11. I haven't visited the thread for a while, so sorry for my late reply. Philtyy; Thank you for the kind words! The software for the OSD and the other stuff is now more or less finished. In the video below I use a cheap 2.4GHz transmitter - not the one in the picture. Check out a video of the first OSD-test here. A picture of the completed FPV stuff:
  12. I've added some pictures of the 23cm TX. Check the bottom of the first post.
  13. Thank you for the comments. Rking: The OSD is made by me, so it is not a commercial solution. Mr. RC-Cam: I have tested the 23cm TX with both the GPS and the AR7000. The TX is much more high quality than Lawnmate transmitters etc., so there is almost no harmonics. I was expecting the TX to block out the GPS though, but testing shows that the signal is just slightly reduced even when the transmitter is 2-3cm close. I guess I can thank the saw-filter on the GPS for that (EM-411 has a saw-filter right?). The AR7000 also performs very well close to the transmitter, but to be sure I bought a
  14. A while ago I decided to build a TwinStar II for FPV use. The plane is not ready to fly yet, but I hope to get it ready within a week. Actually the only thing missing is 30cm silicon wire for the left motor (I made 5 out of 6 cables, and went out of wire). The paintjob is done with black and silver acrylic spray paint. It will be equipped with the following gear: - AR7000 2.4GHz diversity R/C receiver - 4 x Hitec HS-81 - 2 x Turnigy 2213 20-turn brushless motor - 2 x TowerPro w25A ESC - 3A UBEC - 2 x Aluminium spinner - 2 x 9x6 APC propeller - 11.1V 4000mAh LiPo And the
  15. Thank you! Hehe, yes. I was expecting more problems than I actually got. The hour between LOS (video transmitter got out of range), and AOS (the cell phone was low enough to connect to a base-station), made me extremely nervous... The descent was calculated to take about half an hour, but because the ropes got messed up (you can see a rope hanging down on the side of EOS1, that was not supposed to happen), the release mechanism of the balloon had no effect, so EOS1 continued to gain altitude until the balloon exploded. Therefore I had to wait much longer for AOS. But, when the cell phone fina
  16. My server is currently down (has been like that for about half a year), but I will get it up and running in a few weeks (moving home again after some studies). The link posted by Mr.RC-Cam should be used in the meanwhile.
  17. Actually, I will not make the PIC PPM decoder myself. When I started to find a new solution for the RC transmittion, I found out that I was making too much job of everything. My main goal was to design the antenna rotator system and the OSD in the plane, and make a nice FPV-setup that I cound finish in a reasonable time. I didn't had to make every part of it myself. So not to reinvent the wheel, I started to search for someone else who had allready made what i needed: A simple PIC PPM decoder, but with failsafe. I found this one: http://homepages.paradise.net.nz/bhabbott/decoder.html. As you s
  18. Nice to hear your response about EOS1. The project amazed me when it comes to how far it is possible to reach with the same kind of radio equipment we use here (near 80km with Lawnmate RX & 600mW TX). The antenna tracking system is working really good so far. I have only tested azimuth though. The APRS data is sent through the audio channel of the video transmitter, decoded by a single PIC TNC, then az/el angles are calculated in another PIC. I am planning on building a simple rudder "return to home" autopilot too. The RC signals will most probably be transmitted on 433MHz. I will tr
  19. Not me either, but the page follows a standard template for thousands of webshops, so you could just go to a similar page in english to find out what the different buttons do. Much of it is self explainig too, like "Anteny kierunkowe 2.4 GHz" (2.4GHz antenna).
  20. No prob Terry. By the way, the helix I found above comes from a page called yagi.pl. They have extremely cheap antennas. Helical antennas: 10$ to 19$ http://yagi.pl/product_info.php/cPath/50/p...products_id/885 http://yagi.pl/product_info.php/cPath/50/p...products_id/715 http://yagi.pl/product_info.php/cPath/50/p...products_id/787 Parabolic reflector: 8$ http://yagi.pl/product_info.php/cPath/50/p...products_id/658 Parabolic reflector with 2.4GHz antenna: 26$ http://yagi.pl/product_info.php/cPath/50/p...products_id/833 Yagi antenna: 23$ http://yagi.pl/product_info.php/cPat
  21. Look what I found! Very cheap too; 25$. I think I'll order one of those. Edit: Seems like the link doesn't work. Go to http://ebay.com and search for "Direction antenna Helicall18 circular polarized wi-fi"
  22. Well, yes, with 3dB loss I will loose half the power, but there are so many other factors I have to consider. Price is a very important one. Either one antenna with circular polarisation and one receiver, or two antennas with linear polarisation, two receivers and an Oracle... Instead of using lots of money on the polarisation diversity setup, I could just buy an even more directional antenna (17dB instead of 14dB). I am considering changing the transmitter antenna too. I'm thinking about an antenna similar to the one I used in EOS1 (search for it here). It's radiation pattern was all
  23. Great! The last one was about exactly what I was looking for! Pretty high gain and circular polarisation. Danke, mein Freund!
  24. I can see I expressed myself a little wrong. I meant traditional diversity setup to eliminate problems caused by multipathing. I think I have found a solution to eliminate the polarisation problems. I'll use a circular polarized antenna instead, then I will loose a constant 3dB instead of up to 24dB. Another problem is finding a high gain circular polarized antenna. I think I'll have to make myself a helix (a crossed yagi for 2.4GHz is just too much job)...
  25. Hartwig, your post allmost completely changed my mind... The question is if I really want to pay 200$ extra to eliminate a few dropouts when landing. When I fly at high altitude (as I will do 95% of the time), the diversity makes no sense. Another important factor is that I will need to reconstruct the az/el rotor to hold two antennas. By the way I have just found out I will buy the HeadPlay video googles. Yes, they are expensive, but they are the only option because of my rather wide interpupillary distance, making the cheap video googles with 63mm IOD unuseable to me. So, the HeadPla
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