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Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This is being announced now (March 2021) so that everyone has time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.


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About oxxyfx

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    RC-Cam Regular

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    Toronto, Canada
  1. What bothers me is the blleding from one channel to the other - that is not something whihc should happen. Also it seems that on one channel he gets the good packlager on the right as it should be and on the other on the left. Is it possible that the channels are mixed somehow?
  2. It was easier this way. I still have to figure out how to copy and save fils from my Rigol scope to USB memory... Here is the first video: Second video: Third video: all these are with siglthly different scope setting.
  3. Hi Terry, nice to see you. I have 2. A Rigol and a Welleman... Which one should I use? :) I will try to measure the output on the LawMate 1.2Ghz system. I have to note that we already replaced Buffy's 1W transmitter, and one of the receivers which we tought it was defective - however I tested it out with regular audio signal and I did not see anything wrong with it. To make sure that this is not coming from the defective receiver, we replaced that receiver as well. The EzAntennaTracker has a trimpot on it to adjust the incoming levels. Maybe there is an issue of the 2 receviers being on
  4. I am sorry Thomas, I don't. I am using a 1.2Ghz Lawmate TX/RX with the EzOSD, but I do not have the oracle in that installation. Is there a way I could measure the amplitude?
  5. Thomas, Buffy is using a standard 1W 2.4Ghz LawMate transmitter and 2 standard 2.4Ghz LawMate receivers. (RX2460). Zoltan.
  6. Thomas, when I first saw the price of the MK, it struck me. Then I went on rcg and started building the spectrosolutions quad bsed on OMM's thread. While waiting for the parts, I decided to get the MK after all, and it came faster than the other components for the other quad. It took me 6-7 hours to build mine - because I was taking pictures every step of the way - to possibly put together a build documentation. Nevertheless, when finaly powered up, everyhting woke up and I had the thing in the air 5 minutes after the first startup. Now, contrary to that I had an issue with the controller f
  7. Hi, I am late with my response, but (sorry Thomas) I have not been checking this forum very frequently lately. I would like to thank you for your excellent review and post above. Please also note that the optimal voltage to run this thing is around 5V, the resistors which create the input bias are calculated to 5V (correct me if I am wrong Thomas). It will run at lower or higher voltages, however the optimal is around 5V. So the 7805 is a perfect solution, and please use the capacitors, you can get 2 SMD 1206 size capacitors which will fit perfectly between the pins of the Vreg at th
  8. Thomas, I remember reading some test done by some german folks about the 633 modules. They said that the video signal levels measured were out of whack - tested 3-4 different 633 modules - and none of them were the same. Sander also said something about Airwave modified these modules to work better - if I recall he said something about the imput inpedance being closer to 50 ohm than 75. Can that cause these problems? I suggested Dimitris to try some other modules the 630 and 631 apperently does not suffer from the same defect... Zoltan.
  9. Hello, just as an update, we have received the new Video splitters. Tested with the 650 and it works excellent. The product pictures are not yest updated on our website, but we will ship only the new splitters from here on. Please add o your cart this item: http://www.nghobbies.com/cart/index.php?ma...products_id=168 Thank you, Zoltan
  10. Funny... Send me one Thomas... So I tested the Video splitter today, this time with properly set up signal line. As per Mr. Rc-Cam's instructions we added a 47uF cap, and 2 resistors. Connected to the 650HQ I've got excellent picture quality on both outputs. This seem to work, you can go ahead an place your order at your convenience, I can send you this modified one or if you are not in a rush, please wait for 8-10 days till I receive the new modified PCB's and I can send you one without haking. I just re-designed the thing and reordered the boards, those should be in in 8-10 days. T
  11. I didn't have time to test this out last night, but that will be the first thing I will do tonight, and report back. I will better add the resistors, heat shrink it for you and ship it ready to use. That way I can assume warranty as well for my work. Zoltan.
  12. Ok, let me try... The signal of a standard video image is a kind of wave signal which is split horizontally in the middle into a positive (above the line) and negative (below the line) segment. Well of course it is not split in reality, the horizontal line goes in the middle and the signal goes up and down. The upper portion is the positive AC voltage, the lower is the negative. So, if that is the signal which comes out of the camera - connecting it to this splitter will loose the signal portion below the horizontal line - giving you a picture with rolling lines and missing portions an
  13. Hi, I meant to send this early this morning, but then I had to run to work. The chip is a Max4217 video buffer/amplifier. The voltage is between 3.3 and 11.5 as it is required by the Max chip, there is nothing else which would be voltage sensitive on the splitter. Since there is barely any power consumtion on this, this will run as old as possible, barely any heat dissipation. The splitter has a 75 ohm resistor termination at the input - some installations may not require this. Some issues were reported on some situations, but the splitter works very well in most cases. The issues
  14. Well, I think that would not be too hard. Since the RC receiver sends out a pulse to control the servos and we know the length of the pulse in the middle of the stick position is 1.5ms. You just have to time the incoming pulse and see how is it positioned ompared to the middle position - 1.5ms. From there you can calculate the trim. I hope this helps. Oxy.
  15. And a better picture showing you the jumpers and the power connectors. I have to change the 10mH choke to a different one, this one cannot handle the load of the camera and the dragon as well. For now I have it shorted on the bottom.
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