I used to enjoy DXing as a kid, I have a decent receiver here (Icom ICR-75) and about to put up some kind of horizontal long wire antenna after many years of not using this (and I'm setting up my new workshop etc).
The antenna will pretty much be this:
So the radio is "R" above, but why must one of the leads be designated as "ground"? why does the manual say this (connectors 7 and 8):
Says the black connector on the back is to "ground" and the red goes to "long wire antenna".
I'd expect each lead in the first diagram simply be connected to the black and red connectors (7 and 8).
Why is one designated "ground"? the unit itself is not connected to the mains supply, it is driven by an external dedicated 13 V DC supply adapter - no ground.
The antenna diagram above implies there are two leads, is it expected that one of these goes to ground AND into the black connector too (7) ?
The antenna will pretty much be this:
So the radio is "R" above, but why must one of the leads be designated as "ground"? why does the manual say this (connectors 7 and 8):
Says the black connector on the back is to "ground" and the red goes to "long wire antenna".
I'd expect each lead in the first diagram simply be connected to the black and red connectors (7 and 8).
Why is one designated "ground"? the unit itself is not connected to the mains supply, it is driven by an external dedicated 13 V DC supply adapter - no ground.
The antenna diagram above implies there are two leads, is it expected that one of these goes to ground AND into the black connector too (7) ?
Attachments
-
39.1 KB Views: 0