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About Jamez_Warner

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  1. The mix might work, but I want each half of the stick to control a servo wholey, ie: Top - Servo 1 at max, servo 2at min middle - Servo 1 at min, servo 2at min bottom - Servo 1 at min, servo 2at max Not sure the mix would achieve this? James
  2. I have a requirement to use one axis of the right stick of my transmitter to control two RC channels, ie: the top portion controls one servo full range and beneath controls a different servo, also full range. I know it would be easy with a PIC, but are there any commercial circuits to allow this? James
  3. Hey Terry, yeah finally rebuilt the exploration robot far enough to start workig on improving the video link. I'm a little worried about the stress on the PCB trace ( if soldering the pigtail directly here), I'd like to mount the connector direct to the case as in the thread, but my antenna is N which is a bit big! any suggestions on how to go about getting the feed to the the N connector on antenna? PS. i've bought one of these: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...AMEWN%3AIT&rd=1 Maybe a MMCX connector on the case of the receiver? James
  4. Whats best way to solder a replacement cable onto a module like below? the stock cable has all the screen pulled to one side and soldered to case, and the center soldered to the PCB - is this OK? Also what would be the best bulkhead connector to use? SMA? (2.4ghz) James
  5. Anyone ever used the cam module from a camcorder ? my sony's comes off as a seperate unit - are we talking 5v, GND + composite out - or is it more complex than that ?? James
  6. Jamez_Warner

    Extremely simple high speed data "modem"

    is it OK to be pumping the 12v RS232 signal into a video level input ? is this likely to damage my TX if I try it ? James
  7. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...mMakeTrack=true £48 Looks good, I have the 1 watt version and am attaining around 3km range, I suspect the 2watt is gonna be good fun ! James
  8. Jamez_Warner

    Cheap APRS TX+RX

    my video channel has terrible audio, so crackly the signal loses integrity at about 50% of video range data modems VERY expensive for 3km+ range I allready have the tinytrack anyway... James
  9. Jamez_Warner

    BNC at 2.4Ghz ?

    yup most definately I just realised the test was a little unfair - it was running at 9v instead of 12v - will this cause a big RF output difference ? James
  10. Jamez_Warner

    BNC at 2.4Ghz ?

    standard 5cm-ish stick
  11. Jamez_Warner

    BNC at 2.4Ghz ?

    ok first tests were disappointing - slightly less range than old antenna will post some pics tomorrow to see if anything obvious is wrong will also try removing all coax James
  12. Jamez_Warner

    BNC at 2.4Ghz ?

    thanks, yes specs are up to 4ghz, ok to use a short length of rg58u ( about a foot ) ? James
  13. Jamez_Warner

    Cheap APRS TX+RX

    Can anyone suggest an inexpensive way of transmitting APRS audio signals to about 5 miles free air? Walkie talkies don't have the fidelity to use James
  14. Can bnc ( should it be 50 or 75 ohm ? ) be used at 2.4ghz ? I have lots laying around but no SMA for the GPP James