Packet #730921 Success

POSITION_APP packet from Meshtastic b938 (b938) to !ffffffff

8
Total Receptions
8
Unique Gateways
7
Hop Count
32
Payload Bytes
Packet Information
Database ID: 730921
Mesh Packet ID: 0x4a140306
Used for correlation across gateways
Timestamp: 2026-04-05 17:28:39 UTC
From Node: Meshtastic b938 (b938)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 9454 (9454)
Channel: LongFast
RSSI: -40 dBm
SNR: 6.0 dBm
Hop Info: 7/7 hops
Start: 7, Limit: 0
Relay Node: 2c 292c
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 32 bytes
Decoded: Yes
Decoded Data:
Latitude:56.125030°
Longitude:47.264563°
Altitude:140 m
Satellites:12
Precision:13 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:32 bytes
Gateway:!699b9454
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:7 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

FieldValue
gateway_id !699b9454
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (32 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 1771878712
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum POSITION_APP
POSITION_APP
enum
decoded.payload_length 32 bytes size
hop_limit Not set uint32
hop_start 7
Initial hop limit
uint32
hops_taken 7
Calculated: hop_start - hop_limit
derived
rx_rssi -40.0 dBm
Signal strength at gateway
int32
rx_snr 6.00 dB
Signal quality at gateway
float
rx_time 1775410118
Receive timestamp
fixed32
via_mqtt False
Direct LoRa transmission
bool
want_ack False
No ACK requested
bool
priority Not set enum
delayed Not set enum
channel 8
Channel index
uint32
pki_encrypted False
Standard encryption
bool
next_hop Not set uint32
relay_node 44
Relay node ID
uint32
tx_after Not set uint32
timestamp Not set uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (7 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !699b9454
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -40.0 dBm
SNR: 6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:32 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 56.1250304, "longitude": 47.2645632, "altitude": 140, "sats_in_view": 12, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 1771878712, "to": 4294967295, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAdCEVAAAsHBiMASXBm9JpKAN4F4ABrwKYAQy4AQ0=", "bitfield": 1 }, "id": 1242825478, "rx_time": 1775410118, "rx_snr": 6.0, "rx_rssi": -40, "hop_start": 7, "relay_node": 44, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!699b9454" }, "mesh_packet": { "from": 1771878712, "to": 4294967295, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAdCEVAAAsHBiMASXBm9JpKAN4F4ABrwKYAQy4AQ0=", "bitfield": 1, "parsed_payload": { "latitude_i": 561250304, "longitude_i": 472645632, "altitude": 140, "time": 1775410113, "location_source": "LOC_EXTERNAL", "ground_speed": 23, "ground_track": 303, "sats_in_view": 12, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } }, "id": 1242825478, "rx_time": 1775410118, "rx_snr": 6.0, "rx_rssi": -40, "hop_start": 7, "relay_node": 44, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (32 bytes)
0d000074211500002c1c188c0125c19bd269280378178001af0298010cb8010d
Hex Analysis:
Size:32 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations
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Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
Meshtastic 9454 (9454) Primary 0.000s
Reference
-40.0 dBm 6.00 dB 7 2c 292c LongFast 2026-04-05 17:28:39 UTC Current
7 hops Gateways that received this packet after 7 hops
VA7YA Meshtastic Home (vaya) +17.770s
After
-106.0 dBm -19.25 dB 7 f8 LongFast 2026-04-05 17:28:57 UTC View
agregat 868 (68b4) +19.792s
After
-85.0 dBm 0.50 dB 7 e4 LongFast 2026-04-05 17:28:59 UTC View
Verdandi (VERD) +3.340s
After
-55.0 dBm 6.75 dB 7 38 b938 , pad LongFast 2026-04-05 17:28:43 UTC View
Meshtastic 5e80 (5e80) +32.888s
After
-93.0 dBm -10.75 dB 7 f4 LongFast 2026-04-05 17:29:12 UTC View
Poughkeepsie (pkps) +32.921s
After
-107.0 dBm -14.00 dB 7 f4 48f4 LongFast 2026-04-05 17:29:12 UTC View
GunWest (Pepe) +16.685s
After
-122.0 dBm -13.00 dB 7 60 JT LongFast 2026-04-05 17:28:56 UTC View
Meshtastic 292c (292c) -4.456s
Before
-101.0 dBm 1.00 dB 7 38 b938 LongFast 2026-04-05 17:28:35 UTC View
8

Total Receptions

8

Unique Gateways