Mark
More details since I am on a real keyboard now.
If the PTT connector on the RTR1 does NOT detect some voltage above 5-ish,
it will not allow you to switch over to the receive antenna. This is a
safety feature to ensure you don't transmit into your receive antenna.
Grounding the PTT on the RTR1 will not make a difference or allow you to
switch in the RX antenna.
It is explained in the manual as well if you have it handy.
Mike va3mw
On Sun, Sep 11, 2016 at 12:28 AM, Mark Lunday <mlunday@nc.rr.com> wrote:
> am trying to set this up for a separate receive antenna. I had it working
> with my Flex 3000 before I sold that rig. Now I am trying to use it with
> my
> TS-480SAT.
>
> I actually have TWO identical units. Both are exhibiting the same
> behavior:
> without even connecting the RCA ground plug, I cannot get the units to
> switch between receive antenna and transmit antenna using the toggle on the
> front of the unit. (I think that's how I accidentally ordered the second
> unit 6 years ago, I thought the first one had an issue after moving my
> shack, but somehow I hooked everything up and it worked fine).
>
> I can receive RF from the transmit antenna jack through the RTR-1A to the
> TS480. This is the default behavior with power off. With the power on, I
> see the same behavior for both units, and regardless of the toggle setting
> on the right hand side (RX ANT or MAIN ON).
>
> Mark Lunday, WD4ELG
>
> Greensboro, NC FM06be
>
> wd4elg@arrl.net
>
> http://wd4elg.blogspot.com
>
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