In article .com,
wrote:

Rick Kunath wrote:
"John Plimmer" wrote (in part):

I would sell kidney or other spare body part tonight to buy one.
However I live less then 4 miles from a littlel 1KW MW on 770.
And we a few fairly local power houses at 590 and 630 and 1300.
On the 7030+ I could receive the 770+590 fairly strong the , the
770+630 and and the 770+1300 very strong. In a nearby park about
twice as far from the 770 station as my home, I get no mix
products. The 770 is so strong that it will show up in most
receivers even with the antenna disconnected and replaced with a
50 ohm terminator.

Is there any possibility that you have the rear-panel pre-amp
turned on in the 7030?

What happens when you add in 10 dB or so of attenuation?

Rick Kunath

I tried adding 10 db attenuation and even more, but it didn't help.

Describe your antenna.

Does your antenna have any mechanical connections that could be lose or
have rust between conductors?

Besides poor connections forming diodes out of oxides it could be that
your antenna is exceptional at picking up AM broadcast band. Are any
over S9 when tuned in?

--
Telamon
Ventura, California

I'm using a Wellbrook 330S antenna and I don't think it's suffering
from any problems. I use it with my other receivers and they seem to
function well with it. Occasionally there's overload on the HF-150, but
it's always pretty minor, not like what I'm experiencing with the 7030.
This makes me suspect the problem isn't with the antenna. I can even
connect my SW77 to this antenna without getting the kind of overload
I'm finding on the 7030.

Steve

In article .com,
wrote:

I'm using a Wellbrook 330S antenna and I don't think it's suffering
from any problems. I use it with my other receivers and they seem to
function well with it. Occasionally there's overload on the HF-150, but
it's always pretty minor, not like what I'm experiencing with the 7030.
This makes me suspect the problem isn't with the antenna. I can even
connect my SW77 to this antenna without getting the kind of overload
I'm finding on the 7030.

OK, it is not likely that this type of antenna would have the problems I
mentioned and the fact that another receiver you own does not seem to
suffer the same problem points away from the antenna being the problem.

As Pete has mentioned the 7030 has front end filtering but depending on
its age those front end filters could have a problem with the elements
they are made of and at one point were "upgraded" by AOR. The inductors
on some early units had inductors that would saturate and I don't recall
what the problem was with the capacitors but both were changed. Maybe
you have the inferior inductors and capacitors in the front end filters.

Pete already gave the link to the bulletin page but specifically I point
you to this http://www.aoruk.com/7030bulletin.htm#ip3

--
Telamon
Ventura, California