One thought on “Dimensions of Ptarmigan Triffid Array

  • Peter

    I think you fortunate to have a PTARMIGAN Band 3 antenna that was designed for the band 1350 to1850 MHz
    It probably has a beamwidth around 15 x 15 degrees.
    1420 MHz is towards the lower band edge, but being a military design and intended as a secure link antenna for the whole band, will probably have good directional performance and low sidelobes. Military specifications are usually very demanding.
    It may be designed for a 75 ohm system, which you can check with a VNA.
    I would imagine it is a good acquisition for H-line observation.
    Good Luck,


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.