[R-390] Antenna question

[John Kolb]

On Thu, 18 Jul 2002, Thomas W Leiper wrote:

> On Thu, 18 Jul 2002 08:20:26 -0500 "Scott, Barry (Clyde B)"
> <cbscott@ingr.com> writes:
> > What is/was the recommended "standard" antenna and feedline for the
> > R390A?
>
> input, do the Navy mod, which grounds one side of the balanced
> input (making it unbalanced) and feeding the other side out the
> unbalanced bulkhead connector. That gives you an unbalanced
> 75 ohm system which not only allows you to use cheap TV coax
> like RG-59 or RG-11, but also just happens to be the impedance
> at the feedpoint of a resonant half wave dipole.

Yep, that's how we fed them on the Navy ships I was on - a right
angle connector which plugged into the twinax connector, shorted
one side to gnd and output the other to the center pin of a type
C connector.

We mostly fed them with 35 foot vertical whips, through long runs
of coax, but also had a couple of long wire available, also connected
with long coax.

John