Packet #4027863 Success

POSITION_APP packet from GrandSt 351e (351e) to !8140e9ec

17
Total Receptions
17
Unique Gateways
2
Hop Count
22
Payload Bytes
Packet Information
Database ID: 4027863
Mesh Packet ID: 0xc859a250
Used for correlation across gateways
Timestamp: 2025-12-24 08:22:47 UTC
From Node: GrandSt 351e (351e)
To Node: !8140e9ec (e9ec)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: nLink-NY-Jamaica1 (NLJ1)
Channel: LongFast
RSSI: -95 dBm
SNR: 2.0 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: d1 JLY6
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: 22 bytes
Decoded: Yes
Decoded Data:
Latitude:40.715700°
Longitude:-73.984400°
Altitude:95 m
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:22 bytes
Gateway:!db2b2610
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 4
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
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db2b2610
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (22 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3325965598
Source node ID 		uint32
to 2168515052
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 22 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 -95.0 dBm
Signal strength at gateway 		int32
rx_snr 2.00 dB
Signal quality at gateway 		float
rx_time 1766564719
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 209
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766564567.4432569
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 (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db2b2610
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -95.0 dBm
SNR: 2.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:22 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7157, "longitude": -73.9844, "altitude": 95, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db2b2610", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3325965598, "to": 2168515052, "id": 3361317456, "rx_time": 1766564719, "rx_snr": 2.0, "rx_rssi": -95, "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": 209, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d08b944181560e0e6d3185f28017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407157000, "longitude_i": -739844000, "altitude": 95, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d08b944181560e0e6d3185f28017800800100b80120
Hex Analysis:
Size:22 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
nLink-NY-Jamaica1 (NLJ1) Primary 0.000s
Reference 		-95.0 dBm 2.00 dB 2 d1 JLY6 LongFast 2025-12-24 08:22:47 UTC Current
Steiner Studios Tower (SST) -41.262s
Before 		-115.0 dBm -8.25 dB 0 1e 351e LongFast 2025-12-24 08:22:06 UTC View
25 Washington Ave (25WA) -41.253s
Before 		-64.0 dBm 4.00 dB 0 1e 351e LongFast 2025-12-24 08:22:06 UTC View
Izutsumi - seano@masto.nyc (izu) -41.064s
Before 		-98.0 dBm -4.25 dB 0 1e 351e LongFast 2025-12-24 08:22:06 UTC View
CBZ0 🚕 mobile (CBZ0) -39.544s
Before 		-125.0 dBm -16.00 dB 1 25 25WA LongFast 2025-12-24 08:22:07 UTC View
ClaremontWx.net (CmWx) -38.747s
Before 		-96.0 dBm -5.50 dB 1 - LongFast 2025-12-24 08:22:08 UTC View
MeshM0xie (M0x) -37.790s
Before 		-99.0 dBm -8.50 dB 1 c9 Penn LongFast 2025-12-24 08:22:09 UTC View
SACKMESHv4 l https://nyme.sh (SMv4) -37.786s
Before 		-101.0 dBm -10.75 dB 1 c9 Penn LongFast 2025-12-24 08:22:09 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -36.943s
Before 		-106.0 dBm -5.25 dB 1 c9 Penn LongFast 2025-12-24 08:22:10 UTC View
K2XAP / nyme.sh (XAP) -36.695s
Before 		-118.0 dBm -12.25 dB 2 48 VYL0 LongFast 2025-12-24 08:22:10 UTC View
K2XAP R1int (XAPM) -35.376s
Before 		-59.0 dBm 6.00 dB 2 57 CmWx LongFast 2025-12-24 08:22:12 UTC View
dkTowerBot (dkTB) -33.770s
Before 		-109.0 dBm -19.25 dB 2 99 JLX9 LongFast 2025-12-24 08:22:13 UTC View
North Haledon - Dorothy (NHDO) -32.659s
Before 		-99.0 dBm -6.25 dB 3 ec LongFast 2025-12-24 08:22:14 UTC View
YMH 1 @ Your Mom’s House (YMH1) -22.937s
Before 		-104.0 dBm -2.25 dB 1 7b 4b7b LongFast 2025-12-24 08:22:24 UTC View
KageNet Decker (D3KR) -22.596s
Before 		-117.0 dBm -8.25 dB 1 7b 4b7b LongFast 2025-12-24 08:22:24 UTC View
DRP0 Astoria (DRP0) -5.032s
Before 		-75.0 dBm -5.50 dB 2 b2 CBZ1 LongFast 2025-12-24 08:22:42 UTC View
Whole Foods Market UES (WFMK) -4.770s
Before 		-106.0 dBm -12.00 dB 2 b2 CBZ1 LongFast 2025-12-24 08:22:42 UTC View
17

Total Receptions

17

Unique Gateways