TECH-GURU TO THE UNDERWORLD: Weasel can use Enhancement, and once per turn when he does, also modify the attacking character's attack and range values by +1.

ENHANCEMENT When an adjacent friendly character makes a ranged combat attack, this character modifies that adjacent friendly character’s damage value by +1.

I tried finding an answer to this with no luck so I posted. Can you give an adjacent friendly the +1 for attack for close combat. The way everything is worded it seems like Weasel activates enhancement, thus activating +1 to attack. Then the adjacent friendly receives no damage bonus because of no ranged attack being made.

The answer is no, he would not get the +1 stat boost to attack for close combat. In order for you get the +1 bonuses to attack and range, you would have to activate enhancement. In order to activate enhancement, you need to be given a range combat attack. Since you would be based, you would not be able to be given a range combat action, which will not activate enhancement, which will not give the bonuses.

enhancement does not state they Have to make a ranged combat attack, just that if they do they receive +1 to damage.

I feel like weasel can activate enhancement whether someone is receiving benefit or not

If we could only activate powers if the recipient could receive the effect how can we support with highfather on a fully healed character?

Because nothing in the Support description states it can't be used on a character that can't be healed. Normally, it would be a waste of an action, but you can do it if you wish.

Enhancement, on the other hand, clearly states that it functions with ranged combat attacks. No mention of close combat is made.

Player's Guide section 01 page 4:

He's right(see quote). Enhancement is a ranged ability, and can not apply to close combat attacks. Let's break down the ability for comprehension:

This indicates the requirements and the target for enhancement. An adjacent friendly character must make a ranged combat attack in order for this ability to activate. This is at the expense of two action tokens (one to the attacker for making the attack, and one to the character activating Enhancement), and the one making the attack, which I again stress, must make a legal ranged combat attack in order to even activate enhancement.

Don't have range? There are plenty of relics that grant you range, most notably the sniper rifle.

This is pretty much self explanatory.

Thanks for the back up bit just wanted to clear something up here: you do not give the person with enhancement when someone else uses the power. Only the person making the attack gets a token.