As the title says, it is time to check our antennas and ground systems. Make sure all connections are clean, without corrosion and other foreign matter. If you have coax connector exposed to the elements disconnect them and check to make sure they are clean. Any solder joints??? make sure they are bright and shiny... we do not want to have a 'cold' solder joint when the winds of January are blowing... been there done that.
It may not be advisable but I give all exposed coax connector a quick shot of WD40... works for me but your mileage may differ.
Now here's one I always do and many times a year, it's NOT eco friendly to some but for radio it's a big do it now... Around your ground rod... make a cup shapped area a few inches around said rod and a few inches deep if possible... fill this 'cup' with rock salt and cover it with soil them wet it down as much as the soil will handle... making a little 'swamp' isn't a bad thing. This will increase your ground conductivity... this is very important for both receiving and transmitting...
Oh yeah... make sure the rope or what-ever that is holding your antenna... dipole or what have you, is in good shape... January winds have torn down many of my antennas over the years... until I got smart... well... I do forget sometimes... or get lazy sometimes, you know the drill

If using open feeders check to make sure there are no broken spacers and replace even the ones that might look a bit dicey...
While you are at it... check your connectors in the shack... why? Humidity, dust, vibration, etc etc can cause problems here.
A whole book can be written about ground systems but they are as important as your antenna... sometimes even more so. One problem I have noticed over the years is... 'conflicting grounds' (my term) I refuse to use the so called ground on the electric mains when I find there is a voltage difference between my station ground (driven ground rod with radials) and the electric house AC system... Voltage leakage... use your imagination to figure the problems with that situation...
WARNING: Just because I do it doesn't mean you should, or anyone else for that matter, in fact it may kill me... who knows... but I live with this fact: "death may very well be the only thing I will do right the first time"...

Oh yeah... take great care with the inspection of your antenna or ground system... I need your ears to tell me where the 'good stuff' is... radio wise that is
