I'd like to build a very simple frequency counter for VHF (about 100MHz) I have seen this design on the net.
but the maximum range of this is only 25MHz, Is there a way to maybe divide the time base, or the input frequency or maybe to change the Reference crystal to make this device able to measure frequency up to 120MHz?

but the maximum range of this is only 25MHz, Is there a way to maybe divide the time base, or the input frequency or maybe to change the Reference crystal to make this device able to measure frequency up to 120MHz?