Railroad Forums 

  • Horizontally-mounted antennas on Metro-North

  • Discussion related to railroad radio frequencies, railroad communication practices, equipment, and more.
Discussion related to railroad radio frequencies, railroad communication practices, equipment, and more.

Moderator: Aa3rt

 #469276  by myamyc72
 
Does anyone have any infomation on the types and model of antennas used on the Metro North trains running along the New Haven line? I thought I seen some horizontally mounted antennas, that emit a vertically polarized signal pattern. If you have any diagrams or schematics it would be very helpful also.

 #469885  by DutchRailnut
 
The antenna's used are Sinclair antenna's
 #647382  by EdM
 
yeh, not sure if that is what you mean, but a horizontally mounted antenna, 1/4 wave long travelling just above a ground plane, when terminated, is a travelling wave antenna and does indeed generate a vertically polarized signal .. sumpin most people dont believe... Ed