Tomato Can Horn for 2304 MHz Steve Kavanagh, VE3SMA September 2009.

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Presentation transcript:

Tomato Can Horn for 2304 MHz Steve Kavanagh, VE3SMA September 2009

Can Selection Originally contained tomato puree or similar 101 mm outside diameter at rim 119 mm deep Outside - plated takes solder well Inside - plastic film Doesn’t melt when outside soldered !

Construction Standard silver plated N jack Soldered to can Remaining gaps filled with 5 minute epoxy for additional strength and weather protection Hobby tubing soldered to pin as feed probe Brass nut soldered to can for tuning screw Styrofoam plug glued in with 5 minute epoxy Measured 20 dB return loss at 2304 MHz (VSWR = 1.2)

Before styrofoam and painting

Dimensions

The finished product