17-12-2016, 11:08
Hi,
Is that the Transmitter or Receiver Antenna? If it is the receiver, then it will probably make the reception even worse; radio signals just cannot pass through a metal sheet. If the antenna is on the "correct" side of the sheet, then locate it a quarter-wavelength (about 18 cms) away from the sheet, which may then act as a "reflector". Maybe you might even arrange linked (dipole) antennas (18 cms lengths of horizontal wire) on each side of the sheet as a "passive repeater" (but not easy).
What you probably need to do is bouce (reflect) the radio signal off a large (ideally metal) object "in sight" of both the transmitter and the receiver, perhaps a water tank? Note that the antennas are most sensitrive "side on", so if the transmitter is predominantly above the receiver (but in line of sight), then the antennas should indeed be horizontal.
Cheers, Alan.
(17-12-2016, 06:46)Barrow4491 Wrote: In the new year I intend to put an antenna in the ceiling (below the metal roof)
Is that the Transmitter or Receiver Antenna? If it is the receiver, then it will probably make the reception even worse; radio signals just cannot pass through a metal sheet. If the antenna is on the "correct" side of the sheet, then locate it a quarter-wavelength (about 18 cms) away from the sheet, which may then act as a "reflector". Maybe you might even arrange linked (dipole) antennas (18 cms lengths of horizontal wire) on each side of the sheet as a "passive repeater" (but not easy).
What you probably need to do is bouce (reflect) the radio signal off a large (ideally metal) object "in sight" of both the transmitter and the receiver, perhaps a water tank? Note that the antennas are most sensitrive "side on", so if the transmitter is predominantly above the receiver (but in line of sight), then the antennas should indeed be horizontal.
Cheers, Alan.