Coneccting an ATU to a receiver

[leviticus49]

I have just returned to SWL'ing & scanning after a period of 20 or so years. Purchasing a JRC NRD 525G and a AOR AR 2000, I have found a few pieces of kit from the loft but I am not sure how to connect them to the NRD 525. These are a Global AT 1000 ATU and a Datong Multi-mode filter LF2.

In the case of the ATU, at the rear of the unit it has two co-axial connections and underneath these on the left side are labels E RX (a down arrow) and ANT. On the right side (down arrow) ANT EXT-ANT E with screw and washer connectors for each one. Can anyone tell me how to connect a long wire and earth to this receiver please? I'm sure the filter only works on the audio output so can sort that out. Any help would be really appreciated.

 

[ka3jjz]

It's really tough to speculate without seeing a pic of the front and back, but I'd wager that the 'E' is an 'Earth' ('Ground' for us Yanks) connection. Is there a switch to connect more than 1 antenna? If so, then that would account for having 2 ANT connections on the right.

If any of the connections look like what is on the right side of this unit, then those are coax inputs - you would need some PL259s (shown on the left side of the unit) to make the connection. Otherwise the screw terminals would suffice - the center conductor goes to one, the braid to the other. This is a pure WAG, but seems reasonable...

You won't hurt anything by just connecting up the ATU to the receiver - give it a whirl and see what happens. HTH...Mike