Packet #987926 Success

POSITION_APP packet from @_tedks (tks) to Claudiopolis-440c (440c)

8
Total Receptions
8
Unique Gateways
4
Hop Count
36
Payload Bytes
Packet Information
Database ID: 987926
Mesh Packet ID: 0x9b9768d9
Used for correlation across gateways
Timestamp: 2025-10-19 18:17:26 UTC
From Node: @_tedks (tks)
To Node: Claudiopolis-440c (440c)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: JLY2 - Throggs Neck Solar (JLY2)
Channel: LongFast
RSSI: -76 dBm
SNR: 6.25 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Relay Node: 35 JLX5
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: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:40.710963°
Longitude:-73.950822°
Altitude:62 m
Satellites:8
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:36 bytes
Gateway:!3d020966
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:4 / 4
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 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 !3d020966
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 183831424
Source node ID 		uint32
to 3127264268
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 36 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -76.0 dBm
Signal strength at gateway 		int32
rx_snr 6.25 dB
Signal quality at gateway 		float
rx_time 1760897878
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 53
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1760897846.2593744
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
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !3d020966
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -76.0 dBm
SNR: 6.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7109632, "longitude": -73.9508224, "altitude": 62, "sats_in_view": 8, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!3d020966", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 183831424, "to": 3127264268, "id": 2610391257, "rx_time": 1760897878, "rx_snr": 6.25, "rx_rssi": -76, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 53, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000ecd3183e25302bf5682802589f0378008001a8cb810d980108b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -739508224, "altitude": 62, "time": 1760897840, "location_source": "LOC_INTERNAL", "PDOP": 415, "ground_speed": 0, "ground_track": 27289000, "sats_in_view": 8, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d00004418150000ecd3183e25302bf5682802589f0378008001a8cb810d980108b8010d
Hex Analysis:
Size:36 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
JLY2 - Throggs Neck Solar (JLY2) Primary 0.000s
Reference 		-76.0 dBm 6.25 dB 4 35 JLX5 LongFast 2025-10-19 18:17:26 UTC Current
Steiner Studios Tower (SST) -9.398s
Before 		-102.0 dBm -4.25 dB 2 48 BNY7 , CWM1 LongFast 2025-10-19 18:17:16 UTC View
Claudiopolis-440c (440c) -5.732s
Before 		-103.0 dBm -15.75 dB 2 2b P2NY LongFast 2025-10-19 18:17:20 UTC View
P0NY Express Solar Node (P0NY) -3.498s
Before 		-113.0 dBm -3.75 dB 3 7b 4b7b LongFast 2025-10-19 18:17:22 UTC View
dkTowerBot (dkTB) -3.014s
Before 		-106.0 dBm -14.75 dB 3 28 b028 LongFast 2025-10-19 18:17:23 UTC View
RidgeNode (Rno) +1.242s
After 		-139.0 dBm -17.50 dB 4 - LongFast 2025-10-19 18:17:27 UTC View
Poncho@MediumSlowBase2 (pb2!) +5.586s
After 		-40.0 dBm 6.25 dB 4 ed pffs LongFast 2025-10-19 18:17:31 UTC View
K2XAP V4 MS (XAP4) +8.034s
After 		-76.0 dBm 0.25 dB 4 - LongFast 2025-10-19 18:17:34 UTC View
8

Total Receptions

8

Unique Gateways