I might suggest manual editing may be the easiest option to try. This approach should just take a couple of minutes with no computer required.
If you have not updated the radio in several years you likely do not have the Morris and Washington Sites. Check to see. If yes disable other sites and enable one of these. If not try the following.
Step through manage favorites, select System NJICS and select West Orange ( or any other site) , rename it to Morris. Select Site and edit frequencies. Edit so that only these (4) frequencies are in the list. Be sure this is the only site and system enabled.
This is a start, your location and building is a huge variable whether it works or not.
Lastly the x36 is a marginal performer for many (like me) on the NJICS. The x36 is very dated and has been superseded by much better performing radios on PII.
Morris
773.33125c | 773.53125c | 773.78125c |
774.08125c | | |
If Morris does not work you may want to try Washington which also covers
Chester.
774.30625c | 774.55625c | 774.80625c |