Packet #29039471 Success

POSITION_APP packet from SkG@Tracker 📱 (SkGT) to !ffffffff

21
Total Receptions
21
Unique Gateways
4
Hop Count
37
Payload Bytes
Packet Information
Database ID: 29039471
Mesh Packet ID: 0xc99ee0e5
Used for correlation across gateways
Timestamp: 2025-12-21 01:41:10 UTC
From Node: SkG@Tracker 📱 (SkGT)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Aldinra_1640_🗼_🌐 (AldB)
Channel: MediumFast
RSSI: -117 dBm
SNR: -10.25 dBm
Hop Info: 4/5 hops
Start: 5, Limit: 1
Relay Node: f5 RPT4
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:40.337408°
Longitude:-3.820749°
Altitude:745 m
Satellites:11
Precision:15 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:!a0cc1640
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:4 / 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 !a0cc1640
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 1555771960
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 1
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -117.0 dBm
Signal strength at gateway 		int32
rx_snr -10.25 dB
Signal quality at gateway 		float
rx_time 1766281269
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 245
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766281270.8074625
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: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a0cc1640
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -117.0 dBm
SNR: -10.25 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": 40.337408, "longitude": -3.8207488, "altitude": 745, "sats_in_view": 11, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cc1640", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1555771960, "to": 4294967295, "id": 3382632677, "rx_time": 1766281269, "rx_snr": -10.25, "rx_rssi": -117, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 245, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000b9fd18e9052539504769280258840178018001e8c3da0598010bb8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -38207488, "altitude": 745, "time": 1766281273, "location_source": "LOC_INTERNAL", "PDOP": 132, "ground_speed": 1, "ground_track": 11969000, "sats_in_view": 11, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00000b18150000b9fd18e9052539504769280258840178018001e8c3da0598010bb8010f
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
Aldinra_1640_🗼_🌐 (AldB) Primary 0.000s
Reference 		-117.0 dBm -10.25 dB 4 f5 RPT4 MediumFast 2025-12-21 01:41:10 UTC Current
🎄 SkG@Home 📡🌐 (SkGH) -5.320s
Before 		-18.0 dBm 11.75 dB 0 38 SkGT MediumFast 2025-12-21 01:41:05 UTC View
EA4IGE_Alco (astu) -4.111s
Before 		-122.0 dBm -12.50 dB 1 64 MediumFast 2025-12-21 01:41:06 UTC View
Karabanchel_Baldur (KarB) -3.698s
Before 		-109.0 dBm -13.00 dB 2 61 Ilde , TO1 MediumFast 2025-12-21 01:41:07 UTC View
Venturada2 🗼🌞 (Vb2) -3.695s
Before 		-86.0 dBm 8.50 dB 2 61 TO1 MediumFast 2025-12-21 01:41:07 UTC View
Eagle’s Nest (EAGL) -3.692s
Before 		-124.0 dBm -14.75 dB 2 61 TO1 MediumFast 2025-12-21 01:41:07 UTC View
Skynet (Sky) -3.407s
Before 		-95.0 dBm -0.75 dB 2 5d 🥖 MediumFast 2025-12-21 01:41:07 UTC View
🤖 Nicolas Cage 🌐 (Cage) -3.318s
Before 		-100.0 dBm 7.75 dB 2 5d 🥖 MediumFast 2025-12-21 01:41:07 UTC View
tizon (Sylv) -3.293s
Before 		-113.0 dBm -4.00 dB 2 5d 🥖 MediumFast 2025-12-21 01:41:07 UTC View
Ocumare Norte🗼🌐 (RRN) -3.059s
Before 		-99.0 dBm -4.25 dB 3 b0 Vbm , Vb2 MediumFast 2025-12-21 01:41:07 UTC View
Villalbilla02 (VBV2) -2.644s
Before 		-119.0 dBm -9.00 dB 3 b0 Vb2 MediumFast 2025-12-21 01:41:08 UTC View
Villarejo01 (VIL1) -2.519s
Before 		-36.0 dBm 10.75 dB 3 c6 d5c6 MediumFast 2025-12-21 01:41:08 UTC View
PXT_Home (PXT1) -2.445s
Before 		-101.0 dBm 7.25 dB 3 fd BAS2 MediumFast 2025-12-21 01:41:08 UTC View
JAGO1_Cañaveral (JAGO) -2.372s
Before 		Unknown 11.25 dB 4 70 JAG2 MediumFast 2025-12-21 01:41:08 UTC View
GRN2-Cli 📡🔋 (GRN2) -2.328s
Before 		-133.0 dBm -9.50 dB 3 b0 Vb2 MediumFast 2025-12-21 01:41:08 UTC View
P3 iGate 🏠🌐 (P3N2) -2.314s
Before 		-41.0 dBm 11.00 dB 4 25 P3N1 MediumFast 2025-12-21 01:41:08 UTC View
Rodashtastic🗼🌐 (RDSt) -1.851s
Before 		-104.0 dBm 4.50 dB 4 e7 BJN MediumFast 2025-12-21 01:41:08 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) -1.266s
Before 		-116.0 dBm -7.00 dB 4 25 🌇 MediumFast 2025-12-21 01:41:09 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.318s
Before 		-100.0 dBm -9.50 dB 4 f5 RPT4 MediumFast 2025-12-21 01:41:10 UTC View
Meshtastic 1760 (1760) +0.014s
After 		-120.0 dBm -2.25 dB 4 f5 RPT4 MediumFast 2025-12-21 01:41:10 UTC View
Meshtastic 18a4 (18a4) +0.344s
After 		Unknown Unknown 5 60 1760 MediumFast 2025-12-21 01:41:11 UTC View
21

Total Receptions

21

Unique Gateways