Packet #4027770 Success

POSITION_APP packet from Carnegie Hall (CH) to !8140e9ec

14
Total Receptions
14
Unique Gateways
2
Hop Count
22
Payload Bytes
Packet Information
Database ID: 4027770
Mesh Packet ID: 0x218dca87
Used for correlation across gateways
Timestamp: 2025-12-24 08:21:35 UTC
From Node: Carnegie Hall (CH)
To Node: !8140e9ec (e9ec)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: 1 MW 1 West Side | https://nyme.sh (1MW1)
Channel: LongFast
RSSI: -113 dBm
SNR: -9.0 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: 6f fc6f
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:40.765504°
Longitude:-73.980057°
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:!db2959ec
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 !db2959ec
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 163247512
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 -113.0 dBm
Signal strength at gateway 		int32
rx_snr -9.00 dB
Signal quality at gateway 		float
rx_time 1766564662
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 111
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766564495.8818626
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: !db2959ec
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -113.0 dBm
SNR: -9.00 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": 40.7655042, "longitude": -73.9800571, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db2959ec", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 163247512, "to": 2168515052, "id": 562940551, "rx_time": 1766564662, "rx_snr": -9.0, "rx_rssi": -113, "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": 111, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d82524c1815058ae7d3180028017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407655042, "longitude_i": -739800571, "altitude": 0, "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)
0d82524c1815058ae7d3180028017800800100b80120
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
1 MW 1 West Side | https://nyme.sh (1MW1) Primary 0.000s
Reference 		-113.0 dBm -9.00 dB 2 6f fc6f LongFast 2025-12-24 08:21:35 UTC Current
YMH 1 @ Your Mom’s House (YMH1) -3.220s
Before 		-90.0 dBm 4.25 dB 1 e8 LIC1 LongFast 2025-12-24 08:21:32 UTC View
ClaremontWx.net (CmWx) -1.168s
Before 		-99.0 dBm -9.00 dB 2 0c MG , 440c LongFast 2025-12-24 08:21:34 UTC View
K2XAP / nyme.sh (XAP) -0.749s
Before 		-125.0 dBm -17.50 dB 2 0c 440c LongFast 2025-12-24 08:21:35 UTC View
25 Washington Ave (25WA) -0.097s
Before 		-79.0 dBm -4.75 dB 1 c9 Penn LongFast 2025-12-24 08:21:35 UTC View
Steiner Studios Tower (SST) -0.061s
Before 		-120.0 dBm -13.50 dB 1 c9 Penn , JLX3 LongFast 2025-12-24 08:21:35 UTC View
Izutsumi - seano@masto.nyc (izu) +0.108s
After 		-89.0 dBm Unknown 1 c9 Penn , JLX3 LongFast 2025-12-24 08:21:35 UTC View
North Haledon - Dorothy (NHDO) +1.335s
After 		-99.0 dBm -7.50 dB 2 ec LongFast 2025-12-24 08:21:37 UTC View
K2XAP R1int (XAPM) +1.657s
After 		-59.0 dBm 6.00 dB 3 57 CmWx LongFast 2025-12-24 08:21:37 UTC View
Meshtastic 631c (GRBH) +4.486s
After 		-103.0 dBm -13.25 dB 3 2d 🪟 LongFast 2025-12-24 08:21:40 UTC View
Fried Fish FF1 (FF1) +5.598s
After 		-90.0 dBm -2.50 dB 3 b8 🫠 LongFast 2025-12-24 08:21:41 UTC View
dkTowerBot (dkTB) +6.095s
After 		-97.0 dBm -7.50 dB 2 34 8b34 , cf34 , dmlt LongFast 2025-12-24 08:21:41 UTC View
nLink-NY-Jamaica1 (NLJ1) +31.503s
After 		-92.0 dBm -0.25 dB 2 88 grns , 2f88 LongFast 2025-12-24 08:22:07 UTC View
Whole Foods Market UES (WFMK) +354.840s
After 		-112.0 dBm -12.50 dB 3 66 JLY2 LongFast 2025-12-24 08:27:30 UTC View
14

Total Receptions

14

Unique Gateways