Here an example on how to fix your oversized Beacons
divide your shift values by 3 and add a scale of 0.33
then you have neat 1x1 beacons

{ -- twBeacon1
type = "beacon",
name = "twBeacon1",
icon = "TarawindBeacons/graphics/icons/beacon.png",
flags = {"placeable-player", "player-creation"},
minable = {mining_time = 1, result = "twBeacon1"},
max_health = 300,
corpse = "big-remnants",
dying_explosion = "medium-explosion",
collision_box = {{-0.2, -0.2}, {0.2, 0.2}},
selection_box = {{-0.5, -0.5}, {0.5, 0.5}},
allowed_effects = {"consumption", "speed", "pollution", "productivity"},
base_picture =
{
filename = "TarawindBeacons/graphics/entity/beacon/beacon-base.png",
width = 116,
height = 93,
shift = { 0.34375/3, 0.046875/3},
scale = 0.33
},
animation =
{
filename = "TarawindBeacons/graphics/entity/beacon/beacon-antenna1.png",
width = 54,
height = 50,
line_length = 8,
frame_count = 32,
shift = { -0.03125/3, -1.71875/3},
animation_speed = 0.5,
scale = 0.33
},
animation_shadow =
{
filename = "TarawindBeacons/graphics/entity/beacon/beacon-antenna-shadow.png",
width = 63,
height = 49,
line_length = 8,
frame_count = 32,
shift = { 3.140625/3, 0.484375/3},
animation_speed = 0.5,
scale = 0.33
},

Thanks for the help Defi. I have updated the mod with your suggestion, that was exactly what I was looking for.

Defi, if you could help me with my other mod that would be great.
https://github.com/Kane-Nexus/LogisticElectricFurnace
I want an electric furnace that has a requester and provider chest in it so you can have an automatic smart smelter. The problem is the requester chests aren't getting set correctly and the items aren't moving inside the furnace to be handled by the SkyNet. If you have a suggestion there I would be very greatful. Thanks for your time.

dont undestand. u make so pretty antena and resize the beacon too small. Please tell me how resize to normal size = to original beacon