
Jamez_Warner
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RC-Cam'er
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Splitting an RC channel into two full range channels
Jamez_Warner replied to Jamez_Warner's topic in R/C Electronic Projects
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 -
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
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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
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Extremely simple high speed data "modem"
Jamez_Warner replied to Kilrah's topic in R/C Electronic Projects
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 -
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
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BNC at 2.4Ghz ?
Jamez_Warner replied to Jamez_Warner's topic in Wireless Video Antenna Problems and Solutions
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 -
BNC at 2.4Ghz ?
Jamez_Warner replied to Jamez_Warner's topic in Wireless Video Antenna Problems and Solutions
standard 5cm-ish stick -
BNC at 2.4Ghz ?
Jamez_Warner replied to Jamez_Warner's topic in Wireless Video Antenna Problems and Solutions
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 -
BNC at 2.4Ghz ?
Jamez_Warner replied to Jamez_Warner's topic in Wireless Video Antenna Problems and Solutions
thanks, yes specs are up to 4ghz, ok to use a short length of rg58u ( about a foot ) ? James -
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
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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