It depends upon what your requirements are. If you don't care about
isolation between selections and are switching at a point that always
has low voltage (maybe at the base of a vertical or something), almost
anything will work. I've used inexpensive high current automotive relays
from places like Auto Zone for that sort of thing and they work fine.
Most aren't really sealed, but they keep the dust out.
On the other hand, if you want a relay rated for high voltage and good
isolation, they don't come cheap from anyone. The ones that go into the
better remote switches fall into that category.
Dr. James C. Garland wrote:
> Does anybody know what kind of open frame relays Array Solutions (or other
> companies that make remote RF switches) are using? I’d like to find a
> relatively inexpensive open frame relay that can handle at least 1.5kW (cold
> switched only). For long-term reliabilty, something rated at 3KW would be
> Tnx and 73,
> Jim W8ZR
> TowerTalk mailing list
TowerTalk mailing list