RadioBanter - View Single Post

November 15th 03, 08:37 PM

On 15 Nov 2003 18:48:21 GMT, (WP20032) wrote:

This is just a mental exercise, as I have already run coax directly to the rig
from the outside antenna on my trailer.

Hi Wayne,

Speaking of the loss of passive repeating, compare that to the loss of
the shielded inclosure you are trying to transceive through. No doubt
the latter will overwhelm the former giving you a new appreciation to
the chestnut "can you hear me now?"

The losses of passive repeating are typically compared to the coupling
from your set to the inside antenna (this is the loss to be computed
as it is by far the greatest). Losses within the coupling between
antennas (if matched) are trivial in comparison. Further, when the
topic arises, the simple observation that you are sitting next to a
window that is extremely large (in terms of wavelength) dilute the
argument that the passive re-radiator is needed at all (and serves
only as placebo).

73's
Richard Clark, KB7QHC