Packet #4030775 Success

POSITION_APP packet from WestFacing (VYL0) to !ffffffff

14
Total Receptions
14
Unique Gateways
0
Hop Count
23
Payload Bytes
Packet Information
Database ID: 4030775
Mesh Packet ID: 0x6b9b3f0e
Used for correlation across gateways
Timestamp: 2025-12-24 10:08:08 UTC
From Node: WestFacing (VYL0)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: K2XAP / nyme.sh (XAP)
Channel: LongFast
RSSI: -121 dBm
SNR: -13.75 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 48 VYL0
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: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:40.724070°
Longitude:-74.042573°
Altitude:189 m
Precision:14 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:23 bytes
Gateway:!8b1f99e7
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !8b1f99e7
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2697781576
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 23 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -121.0 dBm
Signal strength at gateway 		int32
rx_snr -13.75 dB
Signal quality at gateway 		float
rx_time 1766571060
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 72
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766570888.760766
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)
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~1500.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !8b1f99e7
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -121.0 dBm
SNR: -13.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:23 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7240704, "longitude": -74.0425728, "altitude": 189, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!8b1f99e7", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697781576, "to": 4294967295, "id": 1805336334, "rx_time": 1766571060, "rx_snr": -13.75, "rx_rssi": -121, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 72, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004618150000ded318bd0125fb320a692801b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407240704, "longitude_i": -740425728, "altitude": 189, "time": 1762276091, "location_source": "LOC_MANUAL", "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d00004618150000ded318bd0125fb320a692801b8010e
Hex Analysis:
Size:23 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
K2XAP / nyme.sh (XAP) Primary 0.000s
Reference 		-121.0 dBm -13.75 dB 0 48 VYL0 LongFast 2025-12-24 10:08:08 UTC Current
ClaremontWx.net (CmWx) -0.412s
Before 		-83.0 dBm 3.25 dB 0 48 VYL0 , CWM1 LongFast 2025-12-24 10:08:08 UTC View
dkTowerBot (dkTB) +2.222s
After 		-97.0 dBm -7.50 dB 2 34 8b34 , cf34 , dmlt LongFast 2025-12-24 10:08:10 UTC View
Izutsumi - seano@masto.nyc (izu) +2.427s
After 		-93.0 dBm 0.25 dB 2 34 8b34 , cf34 LongFast 2025-12-24 10:08:11 UTC View
25 Washington Ave (25WA) +3.067s
After 		-80.0 dBm -10.50 dB 2 c9 Penn LongFast 2025-12-24 10:08:11 UTC View
Steiner Studios Tower (SST) +3.075s
After 		-121.0 dBm -14.50 dB 2 c9 Penn , JLX3 LongFast 2025-12-24 10:08:11 UTC View
MeshM0xie (M0x) +3.080s
After 		-99.0 dBm -6.25 dB 2 c9 Penn LongFast 2025-12-24 10:08:11 UTC View
YMH 1 @ Your Mom’s House (YMH1) +3.084s
After 		-127.0 dBm -19.75 dB 2 c9 Penn LongFast 2025-12-24 10:08:11 UTC View
CBZ0 🚕 mobile (CBZ0) +3.620s
After 		-121.0 dBm -14.25 dB 2 c9 Penn , JLX3 LongFast 2025-12-24 10:08:12 UTC View
K2XAP R1int (XAPM) +4.394s
After 		-59.0 dBm 5.75 dB 1 57 CmWx LongFast 2025-12-24 10:08:13 UTC View
North Haledon - Dorothy (NHDO) +4.699s
After 		-108.0 dBm -15.50 dB 3 6f LongFast 2025-12-24 10:08:13 UTC View
Meshtastic 631c (GRBH) +6.177s
After 		-106.0 dBm -17.00 dB 3 dc p4p LongFast 2025-12-24 10:08:14 UTC View
Meshtastic fda8 (fda8) +47.134s
After 		-75.0 dBm -14.25 dB 3 7b 4b7b LongFast 2025-12-24 10:08:55 UTC View
KageNet Decker (D3KR) +47.441s
After 		-120.0 dBm -10.50 dB 3 7b 4b7b LongFast 2025-12-24 10:08:56 UTC View
14

Total Receptions

14

Unique Gateways