What is QFH antenna?

QFH stands for Quadrifilar Helix or Quadrifilar helicoidal. It provides link to Quadrifilar Helix Antenna Calculator which is useful to design QFH antenna. QFH antenna is one among various antennas used to capture images from low level non geosynchronous satellites. It is very simple, effective and efficient antenna.

How many NOAA satellites are there?

16 satellites
NOAA owns or operates a total of 16 satellites. NOAA owns and operates ten satellites, which include: Five geostationary (GOES-14, -15, -16, -17 and -18) Four polar-orbiting (NOAA-15, -18, -19 and -20) One deep space satellite (DSCOVR)

What does the POES satellite do?

Data from the POES series supports a broad range of environmental monitoring applications including weather analysis and forecasting, climate research and prediction, global sea surface temperature measurements, atmospheric soundings of temperature and humidity, ocean dynamics research, volcanic eruption monitoring.

What is the best antenna for 137 MHz weather satellites?

Adam 9A4QV’s V-Dipole for 137 MHz Weather Satellites. Adam has tested the antenna and has gotten excellent results. If you want more information about the antenna design, Adam has also uploaded a pdf with a more indepth description of the design and his thoughts.

What type of antenna is used in polar orbiting weather spacecraft?

Most antenna designs for polar orbiting weather spacecraft are based on circularly polarized turnstile or QFH designs. However, Adams antenna is based on a very simple linearly polarized dipole, which makes construction almost trivial.

What is the optimal orientation of the antenna for Polar Satellites?

This will be optimal for satellites travelling in front, above and behind the antenna. Since polar orbiting satellites always travel North to South or vice versa, we can take advantage of this fact simply by orienting the antenna North/South.

How to install a V-dipole for 137 MHz weather satellites?

Just connect one element to the center coax conductor, and the other to the shield, and spread apart by 120 degrees. Adam 9A4QV’s V-Dipole for 137 MHz Weather Satellites.