Rebase migrations, add some tests, API endpoint (whoops said we didn't need that and we did lol)

app/migrations.py

@@ -382,6 +382,13 @@ async def run_migrations(conn: aiosqlite.Connection) -> int:
         await set_version(conn, 49)
         applied += 1
 
+    # Migration 50: Repeater telemetry history table
+    if version < 50:
+        logger.info("Applying migration 50: repeater telemetry history table")
+        await _migrate_050_repeater_telemetry_history(conn)
+        await set_version(conn, 50)
+        applied += 1
+
     if applied > 0:
         logger.info(
             "Applied %d migration(s), schema now at version %d", applied, await get_version(conn)
@@ -3099,3 +3106,26 @@ async def _migrate_049_foreign_key_cascade(conn: aiosqlite.Connection) -> None:
         )
         await conn.commit()
         logger.debug("Rebuilt contact_name_history with ON DELETE CASCADE")
+
+
+async def _migrate_050_repeater_telemetry_history(conn: aiosqlite.Connection) -> None:
+    """Create repeater_telemetry_history table for JSON-blob telemetry snapshots.
+
+    Uses ON DELETE CASCADE so contact deletion automatically cleans up rows.
+    """
+    await conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS repeater_telemetry_history (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            public_key TEXT NOT NULL,
+            timestamp INTEGER NOT NULL,
+            data TEXT NOT NULL,
+            FOREIGN KEY (public_key) REFERENCES contacts(public_key) ON DELETE CASCADE
+        )
+        """
+    )
+    await conn.execute(
+        "CREATE INDEX IF NOT EXISTS idx_repeater_telemetry_history_key_ts "
+        "ON repeater_telemetry_history(public_key, timestamp DESC)"
+    )
+    await conn.commit()

app/models.py

@@ -530,6 +530,14 @@ class RepeaterStatusResponse(BaseModel):
     flood_dups: int = Field(description="Duplicate flood packets")
     direct_dups: int = Field(description="Duplicate direct packets")
     full_events: int = Field(description="Full event queue count")
+    telemetry_history: list["TelemetryHistoryEntry"] = Field(
+        default_factory=list, description="Recent telemetry history snapshots"
+    )
+
+
+class TelemetryHistoryEntry(BaseModel):
+    timestamp: int
+    data: dict
 
 
 class RepeaterNodeInfoResponse(BaseModel):

app/repository/__init__.py

@@ -8,6 +8,7 @@ from app.repository.contacts import (
 from app.repository.fanout import FanoutConfigRepository
 from app.repository.messages import MessageRepository
 from app.repository.raw_packets import RawPacketRepository
+from app.repository.repeater_telemetry import RepeaterTelemetryRepository
 from app.repository.settings import AppSettingsRepository, StatisticsRepository
 
 __all__ = [
@@ -20,5 +21,6 @@ __all__ = [
     "FanoutConfigRepository",
     "MessageRepository",
     "RawPacketRepository",
+    "RepeaterTelemetryRepository",
     "StatisticsRepository",
 ]

app/repository/repeater_telemetry.py

@@ -0,0 +1,75 @@
+import json
+import logging
+import time
+
+from app.database import db
+
+logger = logging.getLogger(__name__)
+
+# Maximum age for telemetry history entries (30 days)
+_MAX_AGE_SECONDS = 30 * 86400
+
+# Maximum entries to keep per repeater (sanity cap)
+_MAX_ENTRIES_PER_REPEATER = 1000
+
+
+class RepeaterTelemetryRepository:
+    @staticmethod
+    async def record(
+        public_key: str,
+        timestamp: int,
+        data: dict,
+    ) -> None:
+        """Insert a telemetry history row and prune stale entries."""
+        await db.conn.execute(
+            """
+            INSERT INTO repeater_telemetry_history
+                (public_key, timestamp, data)
+            VALUES (?, ?, ?)
+            """,
+            (public_key, timestamp, json.dumps(data)),
+        )
+
+        # Prune entries older than 30 days
+        cutoff = int(time.time()) - _MAX_AGE_SECONDS
+        await db.conn.execute(
+            "DELETE FROM repeater_telemetry_history WHERE public_key = ? AND timestamp < ?",
+            (public_key, cutoff),
+        )
+
+        # Cap at _MAX_ENTRIES_PER_REPEATER (keep newest)
+        await db.conn.execute(
+            """
+            DELETE FROM repeater_telemetry_history
+            WHERE public_key = ? AND id NOT IN (
+                SELECT id FROM repeater_telemetry_history
+                WHERE public_key = ?
+                ORDER BY timestamp DESC
+                LIMIT ?
+            )
+            """,
+            (public_key, public_key, _MAX_ENTRIES_PER_REPEATER),
+        )
+
+        await db.conn.commit()
+
+    @staticmethod
+    async def get_history(public_key: str, since_timestamp: int) -> list[dict]:
+        """Return telemetry rows for a repeater since a given timestamp, ordered ASC."""
+        cursor = await db.conn.execute(
+            """
+            SELECT timestamp, data
+            FROM repeater_telemetry_history
+            WHERE public_key = ? AND timestamp >= ?
+            ORDER BY timestamp ASC
+            """,
+            (public_key, since_timestamp),
+        )
+        rows = await cursor.fetchall()
+        return [
+            {
+                "timestamp": row["timestamp"],
+                "data": json.loads(row["data"]),
+            }
+            for row in rows
+        ]

app/routers/repeaters.py

@@ -1,4 +1,5 @@
 import logging
+import time
 
 from fastapi import APIRouter, HTTPException
 
@@ -21,8 +22,9 @@ from app.models import (
     RepeaterOwnerInfoResponse,
     RepeaterRadioSettingsResponse,
     RepeaterStatusResponse,
+    TelemetryHistoryEntry,
 )
-from app.repository import ContactRepository
+from app.repository import ContactRepository, RepeaterTelemetryRepository
 from app.routers.contacts import _ensure_on_radio, _resolve_contact_or_404
 from app.routers.server_control import (
     batch_cli_fetch,
@@ -108,7 +110,7 @@ async def repeater_status(public_key: str) -> RepeaterStatusResponse:
     if status is None:
         raise HTTPException(status_code=504, detail="No status response from repeater")
 
-    return RepeaterStatusResponse(
+    response = RepeaterStatusResponse(
         battery_volts=status.get("bat", 0) / 1000.0,
         tx_queue_len=status.get("tx_queue_len", 0),
         noise_floor_dbm=status.get("noise_floor", 0),
@@ -128,6 +130,42 @@ async def repeater_status(public_key: str) -> RepeaterStatusResponse:
         full_events=status.get("full_evts", 0),
     )
 
+    # Record to telemetry history as a JSON blob (best-effort)
+    now = int(time.time())
+    status_dict = response.model_dump(exclude={"telemetry_history"})
+    try:
+        await RepeaterTelemetryRepository.record(
+            public_key=contact.public_key,
+            timestamp=now,
+            data=status_dict,
+        )
+    except Exception as e:
+        logger.warning("Failed to record telemetry history: %s", e)
+
+    # Fetch recent history and embed in response
+    try:
+        since = now - 30 * 86400  # last 30 days
+        rows = await RepeaterTelemetryRepository.get_history(contact.public_key, since)
+        response.telemetry_history = [TelemetryHistoryEntry(**row) for row in rows]
+    except Exception as e:
+        logger.warning("Failed to fetch telemetry history: %s", e)
+
+    return response
+
+
+@router.get(
+    "/{public_key}/repeater/telemetry-history",
+    response_model=list[TelemetryHistoryEntry],
+)
+async def repeater_telemetry_history(public_key: str) -> list[TelemetryHistoryEntry]:
+    """Return stored telemetry history for a repeater (read-only, no radio access)."""
+    contact = await _resolve_contact_or_404(public_key)
+    _require_repeater(contact)
+
+    since = int(time.time()) - 30 * 86400
+    rows = await RepeaterTelemetryRepository.get_history(contact.public_key, since)
+    return [TelemetryHistoryEntry(**row) for row in rows]
+
 
 @router.post("/{public_key}/repeater/lpp-telemetry", response_model=RepeaterLppTelemetryResponse)
 async def repeater_lpp_telemetry(public_key: str) -> RepeaterLppTelemetryResponse:

frontend/src/api.ts

@@ -35,6 +35,7 @@ import type {
   RepeaterOwnerInfoResponse,
   RepeaterRadioSettingsResponse,
   RepeaterStatusResponse,
+  TelemetryHistoryEntry,
   StatisticsResponse,
   TraceResponse,
   UnreadCounts,
@@ -414,6 +415,8 @@ export const api = {
     fetchJson<RepeaterLppTelemetryResponse>(`/contacts/${publicKey}/repeater/lpp-telemetry`, {
       method: 'POST',
     }),
+  repeaterTelemetryHistory: (publicKey: string) =>
+    fetchJson<TelemetryHistoryEntry[]>(`/contacts/${publicKey}/repeater/telemetry-history`),
   roomLogin: (publicKey: string, password: string) =>
     fetchJson<RepeaterLoginResponse>(`/contacts/${publicKey}/room/login`, {
       method: 'POST',

frontend/src/components/RepeaterDashboard.tsx

@@ -1,5 +1,6 @@
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 
+import { api } from '../api';
 import { toast } from './ui/sonner';
 import { Button } from './ui/button';
 import { Bell, Info, Route, Star, Trash2 } from 'lucide-react';
@@ -12,7 +13,13 @@ import { isFavorite } from '../utils/favorites';
 import { handleKeyboardActivate } from '../utils/a11y';
 import { isValidLocation } from '../utils/pathUtils';
 import { ContactStatusInfo } from './ContactStatusInfo';
-import type { Contact, Conversation, Favorite, PathDiscoveryResponse } from '../types';
+import type {
+  Contact,
+  Conversation,
+  Favorite,
+  PathDiscoveryResponse,
+  TelemetryHistoryEntry,
+} from '../types';
 import { cn } from '../lib/utils';
 import { TelemetryPane } from './repeater/RepeaterTelemetryPane';
 import { NeighborsPane } from './repeater/RepeaterNeighborsPane';
@@ -23,6 +30,7 @@ import { LppTelemetryPane } from './repeater/RepeaterLppTelemetryPane';
 import { OwnerInfoPane } from './repeater/RepeaterOwnerInfoPane';
 import { ActionsPane } from './repeater/RepeaterActionsPane';
 import { ConsolePane } from './repeater/RepeaterConsolePane';
+import { TelemetryHistoryPane } from './repeater/RepeaterTelemetryHistoryPane';
 import { ContactPathDiscoveryModal } from './ContactPathDiscoveryModal';
 
 // Re-export for backwards compatibility (used by repeaterFormatters.test.ts)
@@ -90,6 +98,24 @@ export function RepeaterDashboard({
   const { password, setPassword, rememberPassword, setRememberPassword, persistAfterLogin } =
     useRememberedServerPassword('repeater', conversation.id);
 
+  // Telemetry history: preload from stored data, refresh from live status
+  const [telemetryHistory, setTelemetryHistory] = useState<TelemetryHistoryEntry[]>([]);
+  useEffect(() => {
+    if (!loggedIn) return;
+    api
+      .repeaterTelemetryHistory(conversation.id)
+      .then(setTelemetryHistory)
+      .catch(() => {});
+  }, [loggedIn, conversation.id]);
+
+  // When a live status fetch returns embedded telemetry_history, replace local state
+  useEffect(() => {
+    const liveHistory = paneData.status?.telemetry_history;
+    if (liveHistory && liveHistory.length > 0) {
+      setTelemetryHistory(liveHistory);
+    }
+  }, [paneData.status?.telemetry_history]);
+
   const isFav = isFavorite(favorites, 'contact', conversation.id);
   const handleRepeaterLogin = async (nextPassword: string) => {
     await login(nextPassword);
@@ -291,6 +317,7 @@ export function RepeaterDashboard({
                   onRefresh={() => refreshPane('status')}
                   disabled={anyLoading}
                 />
+                <TelemetryHistoryPane entries={telemetryHistory} />
                 <RadioSettingsPane
                   data={paneData.radioSettings}
                   state={paneStates.radioSettings}

frontend/src/components/repeater/RepeaterTelemetryHistoryPane.tsx

@@ -0,0 +1,167 @@
+import { useState, useMemo } from 'react';
+import {
+  AreaChart,
+  Area,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip as RechartsTooltip,
+  ResponsiveContainer,
+} from 'recharts';
+import { cn } from '@/lib/utils';
+import type { TelemetryHistoryEntry } from '../../types';
+
+type Metric = 'battery_volts' | 'noise_floor_dbm' | 'packets' | 'uptime_seconds';
+
+const METRIC_CONFIG: Record<Metric, { label: string; unit: string; color: string }> = {
+  battery_volts: { label: 'Voltage', unit: 'V', color: '#22c55e' },
+  noise_floor_dbm: { label: 'Noise Floor', unit: 'dBm', color: '#8b5cf6' },
+  packets: { label: 'Packets', unit: '', color: '#0ea5e9' },
+  uptime_seconds: { label: 'Uptime', unit: 's', color: '#f59e0b' },
+};
+
+const TOOLTIP_STYLE = {
+  contentStyle: {
+    backgroundColor: 'hsl(var(--popover))',
+    border: '1px solid hsl(var(--border))',
+    borderRadius: '6px',
+    fontSize: '11px',
+    color: 'hsl(var(--popover-foreground))',
+  },
+  itemStyle: { color: 'hsl(var(--popover-foreground))' },
+  labelStyle: { color: 'hsl(var(--muted-foreground))' },
+} as const;
+
+function formatTime(ts: number): string {
+  return new Date(ts * 1000).toLocaleString([], {
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  });
+}
+
+function formatUptime(seconds: number): string {
+  if (seconds < 3600) return `${Math.round(seconds / 60)}m`;
+  if (seconds < 86400) return `${(seconds / 3600).toFixed(1)}h`;
+  return `${(seconds / 86400).toFixed(1)}d`;
+}
+
+export function TelemetryHistoryPane({ entries }: { entries: TelemetryHistoryEntry[] }) {
+  const [metric, setMetric] = useState<Metric>('battery_volts');
+
+  const config = METRIC_CONFIG[metric];
+
+  const chartData = useMemo(() => {
+    return entries.map((e) => {
+      const d = e.data;
+      return {
+        timestamp: e.timestamp,
+        battery_volts: d.battery_volts,
+        noise_floor_dbm: d.noise_floor_dbm,
+        packets_received: d.packets_received,
+        packets_sent: d.packets_sent,
+        uptime_seconds: d.uptime_seconds,
+      };
+    });
+  }, [entries]);
+
+  const dataKeys = metric === 'packets' ? ['packets_received', 'packets_sent'] : [metric];
+
+  return (
+    <div className="border border-border rounded-lg overflow-hidden">
+      <div className="flex items-center justify-between px-3 py-2 bg-muted/50 border-b border-border">
+        <h3 className="text-sm font-medium">Telemetry History</h3>
+        <span className="text-[10px] text-muted-foreground">{entries.length} samples</span>
+      </div>
+      <div className="p-3">
+        {/* Metric selector */}
+        <div className="flex gap-1 mb-2">
+          {(Object.keys(METRIC_CONFIG) as Metric[]).map((m) => (
+            <button
+              key={m}
+              type="button"
+              onClick={() => setMetric(m)}
+              className={cn(
+                'text-[11px] px-2 py-0.5 rounded transition-colors',
+                metric === m
+                  ? 'bg-primary text-primary-foreground'
+                  : 'text-muted-foreground hover:text-foreground hover:bg-accent'
+              )}
+            >
+              {METRIC_CONFIG[m].label}
+            </button>
+          ))}
+        </div>
+
+        {entries.length === 0 ? (
+          <p className="text-sm text-muted-foreground italic">
+            No history yet. Fetch status above to record data points.
+          </p>
+        ) : (
+          <ResponsiveContainer width="100%" height={180}>
+            <AreaChart data={chartData} margin={{ top: 4, right: 4, bottom: 0, left: -8 }}>
+              <CartesianGrid strokeDasharray="3 3" stroke="hsl(var(--border))" vertical={false} />
+              <XAxis
+                dataKey="timestamp"
+                type="number"
+                domain={['dataMin', 'dataMax']}
+                tick={{ fontSize: 10, fill: 'hsl(var(--muted-foreground))' }}
+                tickLine={false}
+                axisLine={false}
+                tickFormatter={formatTime}
+              />
+              <YAxis
+                tick={{ fontSize: 10, fill: 'hsl(var(--muted-foreground))' }}
+                tickLine={false}
+                axisLine={false}
+                tickFormatter={(v) => (metric === 'uptime_seconds' ? formatUptime(v) : `${v}`)}
+              />
+              <RechartsTooltip
+                {...TOOLTIP_STYLE}
+                cursor={{
+                  stroke: 'hsl(var(--muted-foreground))',
+                  strokeWidth: 1,
+                  strokeDasharray: '3 3',
+                }}
+                labelFormatter={(ts) => formatTime(Number(ts))}
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                formatter={(value: any, name: any) => {
+                  const numVal = typeof value === 'number' ? value : Number(value);
+                  const display = metric === 'uptime_seconds' ? formatUptime(numVal) : `${value}`;
+                  const suffix =
+                    metric === 'uptime_seconds' ? '' : config.unit ? ` ${config.unit}` : '';
+                  const label =
+                    metric === 'packets'
+                      ? name === 'packets_received'
+                        ? 'Received'
+                        : 'Sent'
+                      : config.label;
+                  return [`${display}${suffix}`, label];
+                }}
+              />
+              {dataKeys.map((key, i) => (
+                <Area
+                  key={key}
+                  type="linear"
+                  dataKey={key}
+                  stroke={metric === 'packets' ? (i === 0 ? '#0ea5e9' : '#f43f5e') : config.color}
+                  fill={metric === 'packets' ? (i === 0 ? '#0ea5e9' : '#f43f5e') : config.color}
+                  fillOpacity={0.15}
+                  strokeWidth={1.5}
+                  dot={false}
+                  activeDot={{
+                    r: 4,
+                    fill: metric === 'packets' ? (i === 0 ? '#0ea5e9' : '#f43f5e') : config.color,
+                    strokeWidth: 2,
+                    stroke: 'hsl(var(--popover))',
+                  }}
+                />
+              ))}
+            </AreaChart>
+          </ResponsiveContainer>
+        )}
+      </div>
+    </div>
+  );
+}

frontend/src/test/repeaterDashboard.test.tsx

@@ -51,6 +51,14 @@ vi.mock('../hooks/useRepeaterDashboard', () => ({
   useRepeaterDashboard: () => mockHook,
 }));
 
+// Mock api module (TelemetryHistoryPane fetches on mount)
+vi.mock('../api', () => ({
+  api: {
+    repeaterTelemetryHistory: vi.fn().mockResolvedValue([]),
+    setContactRoutingOverride: vi.fn().mockResolvedValue({ status: 'ok' }),
+  },
+}));
+
 // Mock sonner toast
 vi.mock('../components/ui/sonner', () => ({
   toast: {
@@ -418,6 +426,7 @@ describe('RepeaterDashboard', () => {
       flood_dups: 1,
       direct_dups: 0,
       full_events: 0,
+      telemetry_history: [],
     };
 
     render(<RepeaterDashboard {...defaultProps} />);
@@ -634,4 +643,61 @@ describe('RepeaterDashboard', () => {
       overrideSpy.mockRestore();
     });
   });
+
+  describe('telemetry history', () => {
+    it('loads telemetry history on mount when logged in', async () => {
+      const { api } = await import('../api');
+      mockHook.loggedIn = true;
+
+      render(<RepeaterDashboard {...defaultProps} />);
+
+      await waitFor(() => {
+        expect(api.repeaterTelemetryHistory).toHaveBeenCalledWith(REPEATER_KEY);
+      });
+    });
+
+    it('shows telemetry history pane in logged-in view even before status fetch', () => {
+      mockHook.loggedIn = true;
+
+      render(<RepeaterDashboard {...defaultProps} />);
+
+      expect(screen.getByText('Telemetry History')).toBeInTheDocument();
+      expect(screen.getByText('0 samples')).toBeInTheDocument();
+    });
+
+    it('updates history from live status fetch', async () => {
+      const { api } = await import('../api');
+      const historySpy = vi.mocked(api.repeaterTelemetryHistory);
+      const liveEntry = { timestamp: 1700000000, data: { battery_volts: 4.2 } };
+      historySpy.mockResolvedValue([]);
+
+      mockHook.loggedIn = true;
+      mockHook.paneData.status = {
+        battery_volts: 4.2,
+        tx_queue_len: 0,
+        noise_floor_dbm: -120,
+        last_rssi_dbm: -85,
+        last_snr_db: 7.5,
+        packets_received: 100,
+        packets_sent: 50,
+        airtime_seconds: 600,
+        rx_airtime_seconds: 1200,
+        uptime_seconds: 86400,
+        sent_flood: 10,
+        sent_direct: 40,
+        recv_flood: 30,
+        recv_direct: 70,
+        flood_dups: 1,
+        direct_dups: 0,
+        full_events: 0,
+        telemetry_history: [liveEntry],
+      };
+
+      render(<RepeaterDashboard {...defaultProps} />);
+
+      await waitFor(() => {
+        expect(screen.getByText('1 samples')).toBeInTheDocument();
+      });
+    });
+  });
 });

frontend/src/types.ts

@@ -416,6 +416,12 @@ export interface RepeaterStatusResponse {
   flood_dups: number;
   direct_dups: number;
   full_events: number;
+  telemetry_history: TelemetryHistoryEntry[];
+}
+
+export interface TelemetryHistoryEntry {
+  timestamp: number;
+  data: Record<string, number>;
 }
 
 export interface RepeaterNeighborsResponse {

tests/test_migrations.py

@@ -1249,8 +1249,8 @@ class TestMigration039:
 
             applied = await run_migrations(conn)
 
-            assert applied == 11
-            assert await get_version(conn) == 49
+            assert applied == 12
+            assert await get_version(conn) == 50
 
             cursor = await conn.execute(
                 """
@@ -1321,8 +1321,8 @@ class TestMigration039:
 
             applied = await run_migrations(conn)
 
-            assert applied == 11
-            assert await get_version(conn) == 49
+            assert applied == 12
+            assert await get_version(conn) == 50
 
             cursor = await conn.execute(
                 """
@@ -1388,8 +1388,8 @@ class TestMigration039:
 
             applied = await run_migrations(conn)
 
-            assert applied == 5
-            assert await get_version(conn) == 49
+            assert applied == 6
+            assert await get_version(conn) == 50
 
             cursor = await conn.execute(
                 """
@@ -1441,8 +1441,8 @@ class TestMigration040:
 
             applied = await run_migrations(conn)
 
-            assert applied == 10
-            assert await get_version(conn) == 49
+            assert applied == 11
+            assert await get_version(conn) == 50
 
             await conn.execute(
                 """
@@ -1503,8 +1503,8 @@ class TestMigration041:
 
             applied = await run_migrations(conn)
 
-            assert applied == 9
-            assert await get_version(conn) == 49
+            assert applied == 10
+            assert await get_version(conn) == 50
 
             await conn.execute(
                 """
@@ -1556,8 +1556,8 @@ class TestMigration042:
 
             applied = await run_migrations(conn)
 
-            assert applied == 8
-            assert await get_version(conn) == 49
+            assert applied == 9
+            assert await get_version(conn) == 50
 
             await conn.execute(
                 """
@@ -1696,8 +1696,8 @@ class TestMigration046:
 
             applied = await run_migrations(conn)
 
-            assert applied == 4
-            assert await get_version(conn) == 49
+            assert applied == 5
+            assert await get_version(conn) == 50
 
             cursor = await conn.execute(
                 """
@@ -1790,8 +1790,8 @@ class TestMigration047:
 
             applied = await run_migrations(conn)
 
-            assert applied == 3
-            assert await get_version(conn) == 49
+            assert applied == 4
+            assert await get_version(conn) == 50
 
             cursor = await conn.execute(
                 """

tests/test_repeater_telemetry.py

@@ -0,0 +1,189 @@
+"""Tests for repeater telemetry history: repository CRUD and read-only endpoint."""
+
+import time
+
+import pytest
+
+from app.models import CONTACT_TYPE_REPEATER
+from app.repository import (
+    ContactRepository,
+    RepeaterTelemetryRepository,
+)
+
+KEY_A = "aa" * 32
+KEY_B = "bb" * 32
+
+SAMPLE_STATUS = {
+    "battery_volts": 4.15,
+    "tx_queue_len": 0,
+    "noise_floor_dbm": -100,
+    "last_rssi_dbm": -80,
+    "last_snr_db": 5.0,
+    "packets_received": 100,
+    "packets_sent": 50,
+    "airtime_seconds": 300,
+    "rx_airtime_seconds": 200,
+    "uptime_seconds": 1000,
+    "sent_flood": 10,
+    "sent_direct": 40,
+    "recv_flood": 60,
+    "recv_direct": 40,
+    "flood_dups": 5,
+    "direct_dups": 2,
+    "full_events": 0,
+}
+
+
+async def _insert_repeater(public_key: str, name: str = "Repeater"):
+    """Insert a repeater contact into the test database."""
+    await ContactRepository.upsert(
+        {
+            "public_key": public_key,
+            "name": name,
+            "type": CONTACT_TYPE_REPEATER,
+            "flags": 0,
+            "direct_path": None,
+            "direct_path_len": -1,
+            "direct_path_hash_mode": -1,
+            "last_advert": None,
+            "lat": None,
+            "lon": None,
+            "last_seen": None,
+            "on_radio": False,
+            "last_contacted": None,
+            "first_seen": None,
+        }
+    )
+
+
+@pytest.fixture
+async def _db(test_db):
+    """Set up test DB and patch the repeater_telemetry module's db reference."""
+    from app.repository import repeater_telemetry
+
+    original = repeater_telemetry.db
+    repeater_telemetry.db = test_db
+    try:
+        yield test_db
+    finally:
+        repeater_telemetry.db = original
+
+
+class TestRepeaterTelemetryRepository:
+    """Tests for RepeaterTelemetryRepository CRUD operations with JSON blob storage."""
+
+    @pytest.mark.asyncio
+    async def test_record_and_get_history(self, _db):
+        await _insert_repeater(KEY_A)
+        now = int(time.time())
+
+        await RepeaterTelemetryRepository.record(
+            public_key=KEY_A,
+            timestamp=now - 3600,
+            data={**SAMPLE_STATUS, "battery_volts": 4.15},
+        )
+        await RepeaterTelemetryRepository.record(
+            public_key=KEY_A,
+            timestamp=now,
+            data={**SAMPLE_STATUS, "battery_volts": 4.10},
+        )
+
+        history = await RepeaterTelemetryRepository.get_history(KEY_A, now - 7200)
+        assert len(history) == 2
+        assert history[0]["data"]["battery_volts"] == 4.15
+        assert history[1]["data"]["battery_volts"] == 4.10
+        assert history[0]["timestamp"] < history[1]["timestamp"]
+
+    @pytest.mark.asyncio
+    async def test_get_history_filters_by_time(self, _db):
+        await _insert_repeater(KEY_A)
+        now = int(time.time())
+
+        await RepeaterTelemetryRepository.record(KEY_A, now - 7200, SAMPLE_STATUS)
+        await RepeaterTelemetryRepository.record(KEY_A, now - 3600, SAMPLE_STATUS)
+        await RepeaterTelemetryRepository.record(KEY_A, now, SAMPLE_STATUS)
+
+        history = await RepeaterTelemetryRepository.get_history(KEY_A, now - 3601)
+        assert len(history) == 2
+
+    @pytest.mark.asyncio
+    async def test_get_history_isolates_by_key(self, _db):
+        await _insert_repeater(KEY_A)
+        await _insert_repeater(KEY_B)
+        now = int(time.time())
+
+        await RepeaterTelemetryRepository.record(
+            KEY_A, now, {**SAMPLE_STATUS, "battery_volts": 4.1}
+        )
+        await RepeaterTelemetryRepository.record(
+            KEY_B, now, {**SAMPLE_STATUS, "battery_volts": 3.9}
+        )
+
+        history_a = await RepeaterTelemetryRepository.get_history(KEY_A, 0)
+        history_b = await RepeaterTelemetryRepository.get_history(KEY_B, 0)
+        assert len(history_a) == 1
+        assert len(history_b) == 1
+        assert history_a[0]["data"]["battery_volts"] == 4.1
+
+    @pytest.mark.asyncio
+    async def test_data_stored_as_json(self, _db):
+        """Verify the data column stores valid JSON that round-trips correctly."""
+        await _insert_repeater(KEY_A)
+        now = int(time.time())
+
+        await RepeaterTelemetryRepository.record(KEY_A, now, SAMPLE_STATUS)
+        history = await RepeaterTelemetryRepository.get_history(KEY_A, 0)
+        assert len(history) == 1
+        assert history[0]["data"] == SAMPLE_STATUS
+
+
+class TestTelemetryHistoryEndpoint:
+    """Tests for the read-only GET telemetry-history endpoint."""
+
+    @pytest.mark.asyncio
+    async def test_returns_history_for_repeater(self, _db, client):
+        await _insert_repeater(KEY_A)
+        now = int(time.time())
+        await RepeaterTelemetryRepository.record(KEY_A, now, SAMPLE_STATUS)
+
+        resp = await client.get(f"/api/contacts/{KEY_A}/repeater/telemetry-history")
+        assert resp.status_code == 200
+        data = resp.json()
+        assert len(data) == 1
+        assert data[0]["data"]["battery_volts"] == 4.15
+
+    @pytest.mark.asyncio
+    async def test_returns_empty_list_when_no_history(self, _db, client):
+        await _insert_repeater(KEY_A)
+
+        resp = await client.get(f"/api/contacts/{KEY_A}/repeater/telemetry-history")
+        assert resp.status_code == 200
+        assert resp.json() == []
+
+    @pytest.mark.asyncio
+    async def test_rejects_non_repeater(self, _db, client):
+        await ContactRepository.upsert(
+            {
+                "public_key": KEY_A,
+                "name": "Node",
+                "type": 0,
+                "flags": 0,
+                "direct_path": None,
+                "direct_path_len": -1,
+                "direct_path_hash_mode": -1,
+                "last_advert": None,
+                "lat": None,
+                "lon": None,
+                "last_seen": None,
+                "on_radio": False,
+                "last_contacted": None,
+                "first_seen": None,
+            }
+        )
+        resp = await client.get(f"/api/contacts/{KEY_A}/repeater/telemetry-history")
+        assert resp.status_code == 400
+
+    @pytest.mark.asyncio
+    async def test_returns_404_for_unknown_contact(self, _db, client):
+        resp = await client.get(f"/api/contacts/{KEY_A}/repeater/telemetry-history")
+        assert resp.status_code == 404