Packet #5603856 Success

POSITION_APP packet from Jamaica Project 8S (JP8S) to !f9989ab8

12
Total Receptions
12
Unique Gateways
7
Hop Count
20
Payload Bytes
Packet Information
Database ID: 5603856
Mesh Packet ID: 0x51c6f1ac
Used for correlation across gateways
Timestamp: 2026-01-12 08:40:49 UTC
From Node: Jamaica Project 8S (JP8S)
To Node: !f9989ab8 (9ab8)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: NODE_SOLAR_868 (8682)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 7/7 hops
Start: 7, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 20 bytes
Decoded: Yes
Decoded Data:
Latitude:55.709518°
Longitude:37.741760°
Precision:32 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:20 bytes
Gateway:!9e9fbbf0
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:7 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e9fbbf0
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (20 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2658721404
Source node ID 		uint32
to 4187527864
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 20 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 Not set int32
rx_snr Not set float
rx_time 1768196448
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 80
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 80
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1768196449.3027368
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

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

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (7 hops)
MQTT-Specific Fields
Gateway ID: !9e9fbbf0
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:20 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 55.709518, "longitude": 37.74176, "altitude": null, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e9fbbf0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658721404, "to": 4187527864, "id": 1371992492, "rx_time": 1768196448, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 80, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 80, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0c9934211580ef7e1625bd8464692801b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 557095180, "longitude_i": 377417600, "time": 1768195261, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (20 bytes)
0d0c9934211580ef7e1625bd8464692801b80120
Hex Analysis:
Size:20 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 Channel Timestamp Actions
NODE_SOLAR_868 (8682) Primary 0.000s
Reference 		Unknown Unknown 7 LongFast 2026-01-12 08:40:49 Current
Fostral (FSTR) -1166.550s
Before 		-75.0 dBm -9.50 dB 6 LongFast 2026-01-12 08:21:22 View
BBS Восток (DM📲) (BBSv) -1165.719s
Before 		-48.0 dBm 6.50 dB 7 LongFast 2026-01-12 08:21:23 View
Dragon868-1 (D1) -1163.933s
Before 		-123.0 dBm -14.50 dB 6 LongFast 2026-01-12 08:21:25 View
Tsaritsyno_KB_U_868 (KBU8) -1157.063s
Before 		-121.0 dBm -14.50 dB 5 LongFast 2026-01-12 08:21:32 View
RN3ABX Georgy 2 (ABX2) -859.346s
Before 		-121.0 dBm -9.00 dB 7 LongFast 2026-01-12 08:26:29 View
ZA_MKAD_22_868_1 (8681) -0.163s
Before 		-136.0 dBm -12.75 dB 6 LongFast 2026-01-12 08:40:49 View
Aster-02 (AST2) +1.763s
After 		-88.0 dBm -9.00 dB 7 LongFast 2026-01-12 08:40:51 View
SYSXX YGW8 (SXY8) +3.483s
After 		-99.0 dBm -14.75 dB 7 LongFast 2026-01-12 08:40:52 View
Zamkad8 (zmkd) +4.799s
After 		-128.0 dBm -16.50 dB 7 LongFast 2026-01-12 08:40:54 View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟) +30.165s
After 		-94.0 dBm -7.00 dB 7 LongFast 2026-01-12 08:41:19 View
Koptevo-8-MQTT (BM8M) +30.443s
After 		-118.0 dBm -16.00 dB 7 LongFast 2026-01-12 08:41:19 View
12

Total Receptions

12

Unique Gateways