I've been using an RCS-4 for years at 1500 Watts without any major
problems, including cases where I used an antenna tuner in the shack to
match a high VSWR on my vertical when operating on the higher end of 160
and 80 meters. The one unit I was using regularly did develop an
intermittent receive problem due to dirty relay contacts. That was easy
enough to fix, however.
As I recall from a conversation I had with someone at Ham Radio Outlet
in Burbank, there were problems with a production run of some of the
post-MFJ merger units. I believe it involved early failures of the
choke, but I don't remember if it was the choke in the control unit, the
one in the remote unit, or both.
Even though the are no longer building products, I think MFJ is still
offering repair services and parts (at least I thought that was the
plan). It might be worth a call to see what they recommend.
73, Mike W4EF......................
On 12/10/2024 3:03 PM, RVZ via TowerTalk wrote:
Hi Guys,
I've gotten a lot of good use out of Ameritron RCS-4 Remote Coax Switches. However, I
keep smoking RFC-1 and wonder if you can recommend a Heavy Duty replacement for RFC-1 that I'm less
likely to smoke when running a KW? Thanks! Dick- K9OM
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