Packet #27769661 Success

POSITION_APP packet from Karabanchel_Baldur (KarB) to !ffffffff

18
Total Receptions
18
Unique Gateways
2
Hop Count
23
Payload Bytes
Packet Information
Database ID: 27769661
Mesh Packet ID: 0x06bc045a
Used for correlation across gateways
Timestamp: 2025-12-15 07:20:26 UTC
From Node: Karabanchel_Baldur (KarB)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: NodeJPL6 (JPL6)
Channel: MediumFast
RSSI: -94 dBm
SNR: -7.0 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: b0 Vb2
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: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:40.366899°
Longitude:-3.738829°
Altitude:657 m
Precision:16 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:23 bytes
Gateway:!b2a70a38
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:2 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b2a70a38
Node ID format
channel_id MediumFast
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 321388680
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 23 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -94.0 dBm
Signal strength at gateway 		int32
rx_snr -7.00 dB
Signal quality at gateway 		float
rx_time 1765783226
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 176
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765783226.276219
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a70a38
Position Precision: 16 bits (~364.0m accuracy)
Position precision meters: 364.0
Signal Metrics: RSSI: -94.0 dBm
SNR: -7.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:23 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3668992, "longitude": -3.7388288, "altitude": 657, "sats_in_view": null, "precision_bits": 16 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a70a38", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 321388680, "to": 4294967295, "id": 112985178, "rx_time": 1765783226, "rx_snr": -7.0, "rx_rssi": -94, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00800f18150080c5fd18910525b7b63f692801b80110", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403668992, "longitude_i": -37388288, "altitude": 657, "time": 1765783223, "location_source": "LOC_MANUAL", "precision_bits": 16, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d00800f18150080c5fd18910525b7b63f692801b80110
Hex Analysis:
Size:23 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
NodeJPL6 (JPL6) Primary 0.000s
Reference 		-94.0 dBm -7.00 dB 2 b0 Vb2 MediumFast 2025-12-15 07:20:26 UTC Current
Karabanchel_Baldur (KarB) -2.342s
Before 		Unknown Unknown 0 88 KarB , FENX MediumFast 2025-12-15 07:20:23 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -1.783s
Before 		-99.0 dBm -9.50 dB 0 88 KarB MediumFast 2025-12-15 07:20:24 UTC View
Skynet (Sky) -1.596s
Before 		-95.0 dBm -3.75 dB 0 88 KarB , 2b88 MediumFast 2025-12-15 07:20:24 UTC View
Eagle’s Nest (EAGL) -1.108s
Before 		-101.0 dBm 6.75 dB 1 48 SMR1 MediumFast 2025-12-15 07:20:25 UTC View
Venturada2 🗼🌞 (Vb2) -0.304s
Before 		-96.0 dBm -2.25 dB 1 c8 c4c8 MediumFast 2025-12-15 07:20:25 UTC View
Fenix (FENX) -0.239s
Before 		-120.0 dBm -12.50 dB 2 61 TO1 MediumFast 2025-12-15 07:20:26 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) -0.138s
Before 		-117.0 dBm -9.75 dB 1 25 🌇 MediumFast 2025-12-15 07:20:26 UTC View
Ocumare Norte🗼🌐 (RRN) -0.032s
Before 		-104.0 dBm -8.50 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-15 07:20:26 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) +0.106s
After 		-106.0 dBm -6.50 dB 2 - MediumFast 2025-12-15 07:20:26 UTC View
Meshtastic JT01 (JT01) +0.568s
After 		-126.0 dBm -13.75 dB 3 13 Sir MediumFast 2025-12-15 07:20:26 UTC View
Mec Rocket Meco (MRM) +0.576s
After 		-110.0 dBm -12.00 dB 3 13 Sir MediumFast 2025-12-15 07:20:26 UTC View
JAGO1_Cañaveral (JAGO) +0.604s
After 		-115.0 dBm -5.50 dB 3 84 SNM , Ancr , 📡 MediumFast 2025-12-15 07:20:26 UTC View
PXT_Home (PXT1) +0.947s
After 		-113.0 dBm -8.00 dB 4 11 BAS1 MediumFast 2025-12-15 07:20:27 UTC View
Zion 🗼 (Zion) +0.977s
After 		-114.0 dBm -12.25 dB 4 11 BAS1 MediumFast 2025-12-15 07:20:27 UTC View
ETH Goose (ET03) +0.984s
After 		-31.0 dBm 11.75 dB 3 41 ET01 MediumFast 2025-12-15 07:20:27 UTC View
P3 iGate 🏠🌐 (P3N2) +1.011s
After 		-37.0 dBm 11.00 dB 4 25 P3N1 MediumFast 2025-12-15 07:20:27 UTC View
Quixote_JS8_7 (QXT7) +1.260s
After 		-18.0 dBm 10.75 dB 4 - MediumFast 2025-12-15 07:20:27 UTC View
18

Total Receptions

18

Unique Gateways