ADS‐B PCB antenna
- PCB Antenna (search for ADS-B 1090MHz ANT V1.0)
- 30cm of 25mm diameter plastic tube (cable installation tube works great and is cheap)
- 13.8cm of 16mm diameter plastic tube (cable installation tube works great and is cheap)
- 2 plastic endcaps for 25mm diameter (chair leg caps work great)
- 2 1/2" or 22mm conduit clamps with m8 mounting thread
- 2 conduit clamps according to your mounting pole
- 2 3cm long m8 threaded rods (you can use threaded rod cut to length or m8 screws from which you cut off the head)
- sma to sma cable as long as you need, the shorter the better (we use rg58 and crimp our connectors after feeding the cable trough the endcap)
- Screwdriver for tightening down the clamps (often a size 2 pozidriv)
- Hacksaw with metal cutting blade
We use a NanoVNA to check our Antennas.
As you can see the SWR@1090mhz is 1.33:1
- Cut your 25mm diameter tube to 30cm
- Cut your 16mm diameter tube to 13,8cm
- Drill a hole in the center of one endcap, choose your drillbit size big enough to feed your sma cable through
- Feed cable through endcap and put cap on tube (can use some glue but not needed)
- Pull the cable through the 25mm diameter tube and the 16mm tube
- Screw the sma connector to the antenna
- The smaller tube will sit inside the bigger tube to prevent the pcb antenna from sliding down
- Pull everything carefully into the tube until the pcb sticks out about 1-2mm
- Put the other endcap on top. No hole and no glue here, so you can access the antenna later on for repairs
- Mount the 22mm conduit clamp on the lower end of the tube 2mm from the endcap with the cablefeed
- Mount the second 22mm clamp a bit higher on the tube in the same direction (stay in the area where there is no pcb to avoid interference with the antenna. 5cm clamp to clamp distance is fine)
- Connect each of the other two conduit clamps with a threaded m8 rod with the clamps on the antenna
- Mount the thing on your mounting pole
