Packet #29877052 Success

POSITION_APP packet from Meshtastic c7b6 (c7b6) to !ffffffff

18
Total Receptions
18
Unique Gateways
2
Hop Count
37
Payload Bytes
Packet Information
Database ID: 29877052
Mesh Packet ID: 0x6a4f14b7
Used for correlation across gateways
Timestamp: 2025-12-24 18:13:19 UTC
From Node: Meshtastic c7b6 (c7b6)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic b2b4📡🌐 (b2b4)
Channel: MediumFast
RSSI: -110 dBm
SNR: -9.0 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: 2d SkyB
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.710963°
Longitude:-3.905946°
Altitude:947 m
Satellites:6
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:37 bytes
Gateway:!433db2b4
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433db2b4
Node ID format
channel_id MediumFast
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4063414198
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -110.0 dBm
Signal strength at gateway 		int32
rx_snr -9.00 dB
Signal quality at gateway 		float
rx_time 1766599998
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 Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 45
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766599999.235451
Unix timestamp 		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)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433db2b4
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -110.0 dBm
SNR: -9.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7109632, "longitude": -3.9059456, "altitude": 947, "sats_in_view": 6, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433db2b4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4063414198, "to": 4294967295, "id": 1783567543, "rx_time": 1766599998, "rx_snr": -9.0, "rx_rssi": -110, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 45, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000acfd18b30725402d4c69280258a8027802800188ee8604980106b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -39059456, "altitude": 947, "time": 1766600000, "location_source": "LOC_INTERNAL", "PDOP": 296, "ground_speed": 2, "ground_track": 8501000, "sats_in_view": 6, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00004418150000acfd18b30725402d4c69280258a8027802800188ee8604980106b8010d
Hex Analysis:
Size:37 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

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 b2b4📡🌐 (b2b4) Primary 0.000s
Reference 		-110.0 dBm -9.00 dB 2 2d SkyB MediumFast 2025-12-24 18:13:19 UTC Current
[samsepi0l] 📡🌐 (tlg0) -1.778s
Before 		-95.0 dBm -0.25 dB 1 - MediumFast 2025-12-24 18:13:17 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -1.427s
Before 		-105.0 dBm -10.00 dB 1 - MediumFast 2025-12-24 18:13:17 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.756s
Before 		-77.0 dBm 9.25 dB 3 b0 Sir , Vb2 MediumFast 2025-12-24 18:13:18 UTC View
Rodashtastic🗼🌐 (RDSt) -0.651s
Before 		-116.0 dBm -6.75 dB 2 e8 GRN1 MediumFast 2025-12-24 18:13:18 UTC View
Karabanchel_Baldur (KarB) -0.002s
Before 		-99.0 dBm -4.25 dB 2 2d SkyB MediumFast 2025-12-24 18:13:19 UTC View
🤖 Nicolas Cage 🌐 (Cage) +0.290s
After 		-66.0 dBm 10.75 dB 2 2d SkyB MediumFast 2025-12-24 18:13:19 UTC View
Eagle’s Nest (EAGL) +0.504s
After 		-111.0 dBm -1.25 dB 4 74 MediumFast 2025-12-24 18:13:19 UTC View
tizon (Sylv) +0.522s
After 		Unknown Unknown 3 0c Sylv MediumFast 2025-12-24 18:13:19 UTC View
Mec Rocket Meco (MRM) +0.701s
After 		-112.0 dBm -11.75 dB 4 c0 sdAh MediumFast 2025-12-24 18:13:19 UTC View
Ocumare Norte🗼🌐 (RRN) +0.842s
After 		-19.0 dBm 10.25 dB 4 6f RRN4 MediumFast 2025-12-24 18:13:20 UTC View
Quass001 ☄️ (Q001) +1.145s
After 		-61.0 dBm 9.25 dB 5 3a Q005 MediumFast 2025-12-24 18:13:20 UTC View
Quixote_JS8_7 (QXT7) +1.288s
After 		-18.0 dBm 11.00 dB 5 - MediumFast 2025-12-24 18:13:20 UTC View
Quixote_JS8_5🗼🌐 (QXT5) +1.340s
After 		-115.0 dBm -9.00 dB 5 - MediumFast 2025-12-24 18:13:20 UTC View
P3 iGate 🏠🌐 (P3N2) +2.241s
After 		-36.0 dBm 11.00 dB 5 25 P3N1 MediumFast 2025-12-24 18:13:21 UTC View
Jolu base (JL1) +3.233s
After 		-108.0 dBm 2.75 dB 5 a4 HelB MediumFast 2025-12-24 18:13:22 UTC View
JohnConnor (JOhN) +16.753s
After 		-108.0 dBm -9.25 dB 4 3c MediumFast 2025-12-24 18:13:35 UTC View
MOVIL 1 🟢 MANCHASTIC (MV1V) +17.855s
After 		-70.0 dBm 11.00 dB 5 c9 MediumFast 2025-12-24 18:13:37 UTC View
18

Total Receptions

18

Unique Gateways