The only dumb question is the one you don't ask...
Putting a switch (or circuit breaker) between the panel(s) & the MPPT
controller inputs will let you turn the panels off when you want to use your SSB
. The MPPT uses a DC/DC converter that often creates RF noise
. We connected our MPPT outputs directly to the shunts that measure current
to/from our batteries, but putting a fuse in there also has value. But you want the voltage sense leads to go directly from the batteries (or shunts) to the MPPT, to minimize connection losses. Also, a good MPPT will use your shunt to decide when it's supposed to switch to Float mode, which is very useful. The MPPT will have it's own shunts to measure current through the MPPT, but for correct Float mode transition it wants to know current in/out of the batteries
, so it can go into Float even when your fridge or other DC loads are active. We opted for an external display, so we could mount our MPPT close to the batteries & still see what's going on. We have a page on installing solar panels
that might help with other questions. Good Luck!