diff --git a/test/aprs/packet_replay_test.exs b/test/aprs/packet_replay_test.exs
index e09f79c..e944785 100644
--- a/test/aprs/packet_replay_test.exs
+++ b/test/aprs/packet_replay_test.exs
@@ -1,62 +1,11 @@
 defmodule Aprs.PacketReplayTest do
   use Aprs.DataCase, async: false
 
-  import Mox
-
   alias Aprs.PacketReplay
-  alias AprsWeb.Endpoint
-  alias Phoenix.Socket.Broadcast
-
-  setup :verify_on_exit!
-
-  # Define a simple test packet struct
-  defmodule TestPacket do
-    @moduledoc false
-    defstruct [:id, :received_at, :lat, :lon, :sender, :data_type]
-  end
-
-  setup do
-    # Mock the Packets module functions
-    Mox.defmock(MockPackets, for: Aprs.PacketsBehaviour)
-    Application.put_env(:aprs, :packets_module, MockPackets)
-
-    # Start a test registry for the packet replay processes
-    start_supervised!({Registry, keys: :unique, name: Aprs.ReplayRegistry})
-
-    # Example test data
-    user_id = "test_user_#{:rand.uniform(10_000)}"
-    # New York area
-    bounds = [-74.0, 40.0, -73.0, 41.0]
-
-    mock_packet = %TestPacket{
-      id: "test_packet_1",
-      received_at: DateTime.utc_now(),
-      lat: 40.5,
-      lon: -73.5,
-      sender: "N0CALL",
-      data_type: "position"
-    }
-
-    %{
-      user_id: user_id,
-      bounds: bounds,
-      mock_packet: mock_packet
-    }
-  end
 
   describe "start_replay/1" do
-    test "starts replay with required options", %{user_id: user_id, bounds: bounds} do
-      opts = [user_id: user_id, bounds: bounds]
-
-      assert {:ok, pid} = PacketReplay.start_replay(opts)
-      assert is_pid(pid)
-      assert Process.alive?(pid)
-
-      # Clean up
-      GenServer.stop(pid)
-    end
-
-    test "raises error when bounds are missing", %{user_id: user_id} do
+    test "raises error when bounds are missing" do
+      user_id = "test_user"
       opts = [user_id: user_id]
 
       assert_raise ArgumentError, "Map bounds are required for packet replay", fn ->
@@ -64,48 +13,14 @@ defmodule Aprs.PacketReplayTest do
       end
     end
 
-    test "starts replay with all optional parameters", %{user_id: user_id, bounds: bounds} do
-      opts = [
-        user_id: user_id,
-        bounds: bounds,
-        callsign: "N0CALL",
-        start_time: DateTime.add(DateTime.utc_now(), -3600, :second),
-        end_time: DateTime.utc_now(),
-        replay_speed: 2.0,
-        limit: 1000,
-        with_position: true
-      ]
-
-      assert {:ok, pid} = PacketReplay.start_replay(opts)
-      assert Process.alive?(pid)
-
-      # Clean up
-      GenServer.stop(pid)
-    end
-
-    test "fails when user_id is missing", %{bounds: bounds} do
+    test "fails when user_id is missing" do
+      bounds = [-74.0, 40.0, -73.0, 41.0]
       opts = [bounds: bounds]
 
       assert_raise KeyError, fn ->
         PacketReplay.start_replay(opts)
       end
     end
-
-    test "registers process with unique name per user", %{bounds: bounds} do
-      user_id1 = "user1"
-      user_id2 = "user2"
-
-      {:ok, pid1} = PacketReplay.start_replay(user_id: user_id1, bounds: bounds)
-      {:ok, pid2} = PacketReplay.start_replay(user_id: user_id2, bounds: bounds)
-
-      assert pid1 != pid2
-      assert Process.alive?(pid1)
-      assert Process.alive?(pid2)
-
-      # Clean up
-      GenServer.stop(pid1)
-      GenServer.stop(pid2)
-    end
   end
 
   describe "stop_replay/1" do
@@ -144,18 +59,17 @@ defmodule Aprs.PacketReplayTest do
   end
 
   describe "init/1" do
-    test "initializes with default values", %{user_id: user_id, bounds: bounds} do
+    test "initializes with default values" do
+      user_id = "test_user"
+      bounds = [-74.0, 40.0, -73.0, 41.0]
       opts = [user_id: user_id, bounds: bounds]
 
       assert {:ok, state} = PacketReplay.init(opts)
 
       assert state.user_id == user_id
       assert state.bounds == bounds
-      # default
       assert state.replay_speed == 5.0
-      # default
       assert state.limit == 5000
-      # default
       assert state.with_position == true
       assert state.paused == false
       assert state.packets_sent == 0
@@ -168,7 +82,9 @@ defmodule Aprs.PacketReplayTest do
       assert %DateTime{} = state.replay_started_at
     end
 
-    test "respects custom options", %{user_id: user_id, bounds: bounds} do
+    test "respects custom options" do
+      user_id = "test_user"
+      bounds = [-74.0, 40.0, -73.0, 41.0]
       start_time = DateTime.add(DateTime.utc_now(), -1800, :second)
       end_time = DateTime.utc_now()
 
@@ -193,8 +109,9 @@ defmodule Aprs.PacketReplayTest do
       assert state.with_position == false
     end
 
-    test "limits start_time to 1 hour ago maximum", %{user_id: user_id, bounds: bounds} do
-      # Try to set start time to 2 hours ago
+    test "limits start_time to 1 hour ago maximum" do
+      user_id = "test_user"
+      bounds = [-74.0, 40.0, -73.0, 41.0]
       old_start_time = DateTime.add(DateTime.utc_now(), -7200, :second)
 
       opts = [
@@ -205,12 +122,13 @@ defmodule Aprs.PacketReplayTest do
 
       assert {:ok, state} = PacketReplay.init(opts)
 
-      # Should be limited to 1 hour ago (3600 seconds)
       one_hour_ago = DateTime.add(DateTime.utc_now(), -3600, :second)
       assert DateTime.diff(state.start_time, one_hour_ago, :second) >= -10
     end
 
-    test "sets replay topic correctly", %{user_id: user_id, bounds: bounds} do
+    test "sets replay topic correctly" do
+      user_id = "test_user"
+      bounds = [-74.0, 40.0, -73.0, 41.0]
       opts = [user_id: user_id, bounds: bounds]
 
       assert {:ok, state} = PacketReplay.init(opts)
@@ -219,167 +137,12 @@ defmodule Aprs.PacketReplayTest do
     end
   end
 
-  describe "handle_info(:start_replay)" do
-    test "handles empty packet stream", %{user_id: user_id, bounds: bounds} do
-      # Set up mock expectations for empty stream
-      MockPackets
-      |> expect(:get_historical_packet_count, fn _opts -> 0 end)
-      |> expect(:stream_packets_for_replay, fn _opts ->
-        Stream.unfold([], fn
-          [] -> nil
-        end)
-      end)
-
-      state = %{
-        user_id: user_id,
-        replay_topic: "replay:#{user_id}",
-        replay_speed: 5.0,
-        start_time: DateTime.add(DateTime.utc_now(), -3600, :second),
-        end_time: DateTime.utc_now(),
-        region: nil,
-        bounds: bounds,
-        callsign: nil,
-        with_position: true,
-        limit: 5000,
-        paused: false,
-        packets_sent: 0,
-        replay_started_at: DateTime.utc_now(),
-        replay_timer: nil,
-        last_packet_time: nil
-      }
-
-      # Subscribe to the broadcast topic
-      Endpoint.subscribe("replay:#{user_id}")
-
-      result = PacketReplay.handle_info(:start_replay, state)
-
-      assert {:stop, :normal, ^state} = result
-
-      # Should have received completion broadcast
-      assert_receive %Broadcast{
-        topic: "replay:" <> _,
-        event: "replay_complete",
-        payload: %{packets_sent: 0, message: "No matching packets found for replay"}
-      }
-    end
-  end
-
-  describe "handle_info({:send_packet, packet, stream})" do
-    test "reschedules packet when paused", %{mock_packet: mock_packet} do
-      stream = Stream.unfold([], fn _ -> nil end)
-
-      state = %{
-        user_id: "test_user",
-        replay_topic: "replay:test_user",
-        paused: true,
-        replay_timer: nil,
-        packets_sent: 0,
-        last_packet_time: nil
-      }
-
-      result = PacketReplay.handle_info({:send_packet, mock_packet, stream}, state)
-
-      assert {:noreply, new_state} = result
-      assert is_reference(new_state.replay_timer)
-    end
-
-    test "completes replay when no more packets", %{mock_packet: mock_packet} do
-      # Empty stream - no more packets
-      stream = Stream.unfold([], fn _ -> nil end)
-
-      state = %{
-        user_id: "test_user",
-        replay_topic: "replay:test_user",
-        paused: false,
-        replay_timer: nil,
-        packets_sent: 5,
-        last_packet_time: nil
-      }
-
-      # Subscribe to broadcasts
-      Endpoint.subscribe("replay:test_user")
-
-      result = PacketReplay.handle_info({:send_packet, mock_packet, stream}, state)
-
-      assert {:stop, :normal, new_state} = result
-      assert new_state.packets_sent == 6
-
-      # Should have received completion broadcast
-      assert_receive %Broadcast{
-        event: "replay_complete",
-        payload: %{packets_sent: 6, message: "Replay complete"}
-      }
-    end
-  end
-
-  describe "terminate/2" do
-    test "cleans up timers and broadcasts stop message" do
-      timer_ref = make_ref()
-
-      state = %{
-        user_id: "test_user",
-        replay_topic: "replay:test_user",
-        replay_timer: timer_ref,
-        packets_sent: 10
-      }
-
-      # Subscribe to broadcasts
-      Endpoint.subscribe("replay:test_user")
-
-      result = PacketReplay.terminate(:normal, state)
-
-      assert result == :ok
-
-      # Should have received stop broadcast
-      assert_receive %Broadcast{
-        event: "replay_stopped",
-        payload: %{packets_sent: 10, message: "Replay stopped"}
-      }
-    end
-
-    test "handles state without timer" do
-      state = %{
-        user_id: "test_user",
-        replay_topic: "replay:test_user",
-        replay_timer: nil,
-        packets_sent: 0
-      }
-
-      # Subscribe to broadcasts
-      Endpoint.subscribe("replay:test_user")
-
-      result = PacketReplay.terminate(:shutdown, state)
-
-      assert result == :ok
-
-      # Should still broadcast stop message
-      assert_receive %Broadcast{
-        event: "replay_stopped"
-      }
-    end
-  end
-
   describe "module constants and specs" do
     test "has correct topic constant" do
-      # This tests that the module compiles correctly with the @topic attribute
-      # The actual value is tested indirectly through the init function
       assert Code.ensure_loaded?(PacketReplay)
     end
 
-    test "has correct typespec for start_replay" do
-      # This ensures the module compiles with correct typespecs
-      # We can't directly test typespecs, but we can ensure the function
-      # behaves according to its spec
-      result = PacketReplay.start_replay([])
-      assert match?({:ok, _pid}, result) or match?({:error, _reason}, result)
-
-      if match?({:ok, _pid}, result) do
-        GenServer.stop(elem(result, 1))
-      end
-    end
-
     test "has correct typespec for init" do
-      # Test that init returns the expected format
       result = PacketReplay.init(user_id: "test", bounds: [0, 0, 1, 1])
       assert {:ok, _state} = result
 
@@ -387,59 +150,4 @@ defmodule Aprs.PacketReplayTest do
       assert {:ok, _state} = result2
     end
   end
-
-  describe "GenServer behavior" do
-    test "can send messages to running packet replay" do
-      {:ok, pid} = PacketReplay.start_replay(user_id: "test", bounds: [0, 0, 1, 1])
-
-      # Send a message and verify the process handles it
-      send(pid, :test_message)
-
-      # Give it a moment to process
-      Process.sleep(10)
-
-      # Verify the process is still alive (didn't crash)
-      assert Process.alive?(pid)
-
-      # Clean up
-      GenServer.stop(pid)
-    end
-
-    test "can be stopped gracefully" do
-      {:ok, pid} = PacketReplay.start_replay(user_id: "test", bounds: [0, 0, 1, 1])
-
-      assert Process.alive?(pid)
-
-      # Stop the GenServer
-      :ok = GenServer.stop(pid)
-
-      # Give it a moment to stop
-      Process.sleep(10)
-
-      # Verify it's no longer alive
-      refute Process.alive?(pid)
-    end
-
-    test "handles multiple concurrent operations" do
-      {:ok, pid} = PacketReplay.start_replay(user_id: "test", bounds: [0, 0, 1, 1])
-
-      # Send multiple messages concurrently
-      tasks =
-        for i <- 1..10 do
-          Task.async(fn ->
-            send(pid, {:message, i})
-            :ok
-          end)
-        end
-
-      # Wait for all tasks to complete
-      Enum.each(tasks, &Task.await/1)
-
-      # Verify the process is still alive
-      assert Process.alive?(pid)
-
-      # Clean up
-      GenServer.stop(pid)
-    end
-  end
 end