Packet #27903420 Success

POSITION_APP packet from jopsis_tracker (👾) to !ffffffff

24
Total Receptions
24
Unique Gateways
2
Hop Count
47
Payload Bytes
Packet Information
Database ID: 27903420
Mesh Packet ID: 0x51409648
Used for correlation across gateways
Timestamp: 2025-12-15 21:43:36 UTC
From Node: jopsis_tracker (👾)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: srs-h3 📡🌐 (srs0)
Channel: MediumFast
RSSI: -124 dBm
SNR: -13.0 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: bb 03bb
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: 47 bytes
Decoded: Yes
Decoded Data:
Latitude:40.316668°
Longitude:-3.705488°
Altitude:641 m
Satellites:13
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:47 bytes
Gateway:!433d603c
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
+ 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 !433d603c
Node ID format
channel_id MediumFast
packet MeshPacket (47 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 578056401
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 47 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 -124.0 dBm
Signal strength at gateway 		int32
rx_snr -13.00 dB
Signal quality at gateway 		float
rx_time 1765835016
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 187
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765835016.8371198
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: !433d603c
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -124.0 dBm
SNR: -13.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:47 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3166683, "longitude": -3.7054883, "altitude": 641, "sats_in_view": 13, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433d603c", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 578056401, "to": 4294967295, "id": 1363187272, "rx_time": 1765835016, "rx_snr": -13.0, "rx_rssi": -124, "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": 187, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0ddbd50718155d96cafd188105250981406928023d50804069506658800178018001b0f8f31098010db00101b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403166683, "longitude_i": -37054883, "altitude": 641, "time": 1765835017, "location_source": "LOC_INTERNAL", "timestamp": 1765834832, "altitude_geoidal_separation": 51, "PDOP": 128, "ground_speed": 1, "ground_track": 35454000, "sats_in_view": 13, "seq_number": 1, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (47 bytes)
0ddbd50718155d96cafd188105250981406928023d50804069506658800178018001b0f8f31098010db00101b80120
Hex Analysis:
Size:47 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
srs-h3 📡🌐 (srs0) Primary 0.000s
Reference 		-124.0 dBm -13.00 dB 2 bb 03bb MediumFast 2025-12-15 21:43:36 UTC Current
Skynet (Sky) -1.442s
Before 		-94.0 dBm -2.50 dB 0 d1 👾 MediumFast 2025-12-15 21:43:35 UTC View
Meshtastic b2b4📡🌐 (b2b4) -0.978s
Before 		-110.0 dBm -5.75 dB 1 2d SkyB MediumFast 2025-12-15 21:43:35 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.939s
Before 		-100.0 dBm -9.25 dB 1 2d SkyB MediumFast 2025-12-15 21:43:35 UTC View
tizon (Sylv) -0.664s
Before 		-113.0 dBm -4.25 dB 1 2d SkyB MediumFast 2025-12-15 21:43:36 UTC View
Fenix (FENX) -0.651s
Before 		-117.0 dBm -11.00 dB 1 2d SkyB MediumFast 2025-12-15 21:43:36 UTC View
Getafe ☀️ (GTF) -0.594s
Before 		-119.0 dBm -9.25 dB 1 2d SkyB MediumFast 2025-12-15 21:43:36 UTC View
Meshtastic 26b0 (26b0) -0.425s
Before 		-97.0 dBm 2.50 dB 2 c8 c4c8 MediumFast 2025-12-15 21:43:36 UTC View
JAGO1_Cañaveral (JAGO) -0.246s
Before 		-114.0 dBm -3.50 dB 2 84 SNM , Ancr , 📡 MediumFast 2025-12-15 21:43:36 UTC View
Ocumare Norte🗼🌐 (RRN) -0.027s
Before 		-102.0 dBm -8.50 dB 3 b0 Vbm , 26b0 MediumFast 2025-12-15 21:43:36 UTC View
Villalbilla02 (VBV2) +0.214s
After 		-115.0 dBm -7.00 dB 3 b0 26b0 MediumFast 2025-12-15 21:43:37 UTC View
JPL73B4_Node (JPL4) +0.259s
After 		Unknown Unknown 4 08 JPL2 MediumFast 2025-12-15 21:43:37 UTC View
JPL73B2_Node (JPL2) +0.313s
After 		-95.0 dBm -10.00 dB 3 b0 Vbm , 26b0 MediumFast 2025-12-15 21:43:37 UTC View
[samsepi0l] 📡🌐 (tlg0) +1.339s
After 		-74.0 dBm -4.25 dB 4 fc 74fc , Anu2 MediumFast 2025-12-15 21:43:38 UTC View
Eagle’s Nest (EAGL) +1.476s
After 		-101.0 dBm 6.00 dB 4 48 SMR1 MediumFast 2025-12-15 21:43:38 UTC View
Mec Rocket Meco (MRM) +1.487s
After 		-110.0 dBm -11.50 dB 5 a8 CALB MediumFast 2025-12-15 21:43:38 UTC View
P3 iGate 🏠🌐 (P3N2) +1.532s
After 		-40.0 dBm 11.00 dB 4 25 P3N1 MediumFast 2025-12-15 21:43:38 UTC View
Varela Bot 🏡🤖 (🤖) +1.805s
After 		-76.0 dBm 9.25 dB 3 1c 🏡 MediumFast 2025-12-15 21:43:38 UTC View
PXT_Home (PXT1) +2.351s
After 		-101.0 dBm 6.00 dB 4 fd BAS2 MediumFast 2025-12-15 21:43:39 UTC View
Zion 🗼 (Zion) +2.376s
After 		-112.0 dBm -8.25 dB 4 fd BAS2 MediumFast 2025-12-15 21:43:39 UTC View
Quixote_JS8_5🗼🌐 (QXT5) +2.590s
After 		-114.0 dBm -14.00 dB 5 - MediumFast 2025-12-15 21:43:39 UTC View
Quixote_JS8_7 (QXT7) +2.594s
After 		-19.0 dBm 10.75 dB 5 - MediumFast 2025-12-15 21:43:39 UTC View
Karabanchel_Baldur (KarB) +3.814s
After 		-99.0 dBm -5.00 dB 3 90 C181 MediumFast 2025-12-15 21:43:40 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) +5.574s
After 		-116.0 dBm -9.00 dB 5 25 🌇 MediumFast 2025-12-15 21:43:42 UTC View
24

Total Receptions

24

Unique Gateways