  We prove a simple explicit formula for the local Katz-Radon transform of an
l-adic representation of the Galois group of the fraction field of a strictly
henselian discrete valuation ring with positive residual characteristic, which
can be defined as the local additive convolution with a fixed tame character.
The formula is similar to one proved by D. Arinkin in the D-module setting, and
answers a question posed by N. Katz.
