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Everything posted by mklarich

  1. Use channel 3 no retuning required. Are you using audio channel for anything val? Need to see if audio offset is the same. Matt Klarich
  2. What frequency are the felswebs on? Matt Klarich
  3. Can you post your code? I haven't worked with the HWPWM much, want to start though. Matt
  4. Much thanks rc-cam, I took a long time to develop this unit to be an amazing product. This is my 4th board revision and 3rd case revision. Below is a picture of an almost completed unit. The labels are arriving early this coming week and units should be available for sale at the end of the week. If all goes well they will be ready to ship friday. Matthew Klarich m1klarich-AT-klarichelectronics.com
  5. I am getting my website updated this weekend. Val, the unit is using frequencies compatible with blackwidow A/Vs frequency set 1. I am working on the older lawmate receiver version this week. Its output is a little different then what I am working with right now. I will have info and pics up shortly. Regarding antenna distance. A wavelength at 2.4ghz is 30cm long. It doesn't take much distance between antennas to make a huge difference. Just look at wireless routers for computers, their frequency is only 50mhz away from us and their antennas are closer together then mine. More info w
  6. You can see a proto of it in this picture. This picture is posted in another thread. Bill Strong will have a shot of the new unit up on here later today. The new unit is all black to match the receivers. I am still surprised no one asked me what the heck that thing was on the tripod, but then again my airplane was in the shot...along with my wife..... Probably should have put her first Matt
  7. This system uses 2 receivers from BlackWidow's 2.4Ghz line of transmitters and receivers (Frequency Set 1) to virtually eliminate multi-path interference. Multi-path interference occurs when a signal originating from a video transmitter is received by a receiver that also receives the exact same signal a split second later because the 2nd signal has bounced off of an object and arrives a split second after the original signal. Sounds kind of confusing but it is the source of much of our troubles with video systems. I have been trying out different antenna configurations for 4 years trying
  8. Off hand I don't know altitude tolerances with WAAS, I am sure someone can look it up this evening. The beauty of WAAS compared to DGPS is no extra receiver. Its just another highly accurate GPS satellite for maritime use mostly. If you could find a GPS receiver that would take USA's GPS and Russia's GLONASS you should increase accuracy. If you can decipher the meaning of all the tables and graphs here is a page that talks about WAAS. http://users.erols.com/dlwilson/gpswaas.htm Hope thats some help, Matt Klarich
  9. kilrah, you aren't in the US where we have WAAS which adds quite a bit of altitude accuracy. Matt
  10. You can take the antenna apart and reduce its weight by quite a bit. All thats in there is a piece of circuit board cut to the correct length. If you want to get real fancy you can unsolder the sma connector from the transmitter and solder the coax from the circuit board antenna directly to the transmitter circuit board. By removing the SMA connector and adding the small amount of weight from the coax and circuit board you probably stay just about equalized. I warn you though, bill strong from blackwidow probably won't accept a return if you break something :) Matt Klarich
  11. Thanks much, I knew you would be able to help me out with that. Thanks again, Matt
  12. Just a quick question if someone could please help me out. I am looking at PICs for a new project and need a small pic with lots of program space. I have been looking at Microchip.com Flash Pics microchip's website. I am a little confused as to which specification about memory is the space in which my picbasic pro program is saved too. Bytes Words EEPROM Data Memory RAM Thanks much, Matt Klarich
  13. Don't forget that 3 cells may be 3.6 volts nominal with 1.2 volts per cell but full charged cells can be 1.2-1.4 volts per cell. So 3 fully charged cells can be as much as 4.2 volts. If the camera has an internal regulator then it might be ok, but if not you are pushing the envelope. Matt Klarich
  14. I thought about that last night at about 1:00Am when thunderstorm rolled thru and woke me up... I said to myself...."I hope he has a ground between the RC RX and the protoboard" that was about the only thing I could think of.. GET A GROUND ON THERE!!!!! Matt Klarich
  15. Ok, I am moving to the next thing I know about measuring pulse measurements from R/C Receivers. That is the fact that some R/C receivers do not output their PWM signal at 0 low and 5 volt high. They are more around 0 low and 3.3-3.8 high. New futaba PCM being one of them. If you have an oscilloscope hook it up and measure the peak voltage on the signal line. Your receiver may be using low voltage processors and the PIC may not be recognizing the highs. Have had major problems with that before. A 16F628 will recognize signals from futaba receiver and a 16F877 wouldn't just because of the low
  16. When using the pulsin statement with the 1 modifier the program waits for the next low to high change. So even if the program reaches the pulsin command in the middle of the high of the R/C pulse it will actually wait for the next low to high and make a correct measurement. Give this a try, first of all change your data rate to 19200 in your terminal program. Try this without modification. Also what speed are you running your pic at? ARE you using internal or external crystal/oscillator. I am assuming you are running external 4mhz crystal using a microengineering labs proto board. Am I wron
  17. What speed are you running the pic at? Use the pulsin command. Pulsin,1, variablename The pulsin is the command, 1 tells it to look for a high, and the variablename is whatever u program in. Make sure to define whatever u call the variable as a byte. If you are running the pic on internal 4 mhz oscillator then the resolution of the pulsin measurement is every 10uS and where we normally talk about a servo traveling from 1000uS to 2000uS with 1500uS being center you are now measuring from 100 to 200 with 150 as center. If you are running a 20mhz external oscillator then the res
  18. Shaft is reverse thread, metric. I don't remember diameter..just fair warning on backwards thread and being metric.... Matt Klarich
  19. how many leds u need to light? Matt
  20. I have a panasonic board camera I cannot find any specs on. The only model # on it is ZE55029, I got 2 from ebay about 6 months ago. They are nice because the lens mount and mounting ears are cast aluminum so it is a well built little camera. Any help appreciated, trying to find resolution mostly. Thanx, Matt Klarich
  21. If you get the servos and mounts I will build the servo control unit to replace the remote control portion (as I said, so you don't have to use model airplane/car frequencies and possibly shoot someone in the area on the same frequency down. I also found a USB extension that uses network cable of any length up to 330 feet. So that will work with the laptop. Matt
  22. Do you own a laptop evader?? Canon cameras come with some decent software and you can get USB cables with powered hubs more then long enough to reach 40 or 50 feet. That way the camera is powered thru USB with batteries for backup and you can preview the shot on the laptop and also trigger the shot from the laptop. You might even be able to zoom from the software, I don't remember. As far pan and tilt I am sure you can make or have someone make a cheap and dirty pan and tilt unit using a couple heavy duty model servos. I can throw together a hard wired dual servo control unit that would ha
  23. Problem with those CD-rom audio connectors are they never use all 4 pins when they make them. The connector has left, ground, ground, right and they always share the ground. If you can find the pins that fit into those connectors and crimp new cables with all 4 conductors you will be in business. Matt Klarich
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