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  • Users: FlightSim
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  1. FlightSim

    450 - 470 MHz Radio Transmission Indiana US

    Hi, could some one advice on wha the requirments for transmitting on UHF 2 450 - 470 MHz for Indiana US. Whats the power limit before a license is required. Is there a specific band width to use 12.5 or 25KHz. Thanks Paul
  2. FlightSim

    TNC-Adpater to for optional antenna mounting position

    Hi I was going to use a TNC Adapter to link antenna's to a Radio so that I have the choice of two antenna mounting positions. TNC directly on top of the system/box for 2.4db whip antenna and underneath the system/box for a secdondary to attach a 1 meter cable to, for a larger antenna such as a...
  3. FlightSim

    EAGLE CAD Solid Round Pad

    Hi I'm trying to create an Solid Round Pads to take a SMD 6-Position Connector with round pins with PCB Teriminations. I see pads but that has a drill size in properties and there's no option to turn the drill size off or set it to 0. Thanks Paul
  4. FlightSim

    DC-DC Converter

    Hi, how do I set the voltage up for this DC/DC converter,8.5-36Vin,12Vo 15A,180W http://uk.rs-online.com/web/p/isolated-dc-dc-converters/7541438/ I'm looking for an output of 20VDC from an Input of 12VDC. Is there a set of instructions usually for something like this? thanks Paul
  5. FlightSim

    Basic Wire AWG Theory and Current Rating

    Hi, I'm looking at supplying 4.3A through a 19way connector, each crimp can accept max wire size of 22 AWG. I was looking at an AWG able to check the current ratings, for 22 AWG: in air 7A and in jacket 0.92A, so does that mean to get the 4.3A its 4.3/0.92 = 4.67, therefore I need 5 22 AWG wires...
  6. FlightSim

    Encoders Output, TTL, Quadrature?

    Hi, I'm trying to find a Non-Quadrature Encoder which is TTL but am confused over if and how they relate. The supply voltage available is 12VDC. Standard for TTL I understand is 5VDC. My understanding of quadrature is that you can have signals A B Z, the phase shift providing distance and...
  7. FlightSim

    RTK Receive Only Antenna, Unity Gain or higher Gain antenna?

    Hi, I'm looking at a system using RTK Corrections. I wanted to check if it mattered if I used just a Unity Gain Antenna for the Mobile Vehicle that a Receive only antenna is mounted on. The Corrections are sent from a base which I know is important for choice of antenna depending on the range or...

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