Recently I wanted to add some repeaters to my CRT Electro UV. It is quite a cumbersome procedure.
Changing settings
Enter the menu with Fun
Use V/M and Main as up and down keys to browse through the menu
When you reach the setting, use Mon to enter the setting
Now you can use Up and Down to set the value
When all settings have been set correctly, use Fun to go back to the main screen
Storing the preset
On the mic press A/Fun and then the UP key on the mic
This puts you in "store" mode
Use Up and Down on the mic to select the memory bank you want to store
Now long press */Mon on the mic to store the preset in the memory bank
Setting repeater shift
Through the menu you can set the repeater offset. However, there is no option to set the repeater shift (+, -, off) through the menu.
You have to use A/Fun + 9/Rpt to cycle through +, -, and off.
The CRT Electro UV is my latest transceiver. It covers both the 2m and 70cm bands.
I got it to work the local and national repeaters without having to fire up my main radio, and to use it from the car when traveling.
It took me a while to figure out how the radio works, especially the menu-system. There seem to be two separate menus: the quick menu, and the detailed menu. Once in the detailed menu, it is difficult to get back to the quick menu.