Packet #3436989 Success

POSITION_APP packet from WestFacing (VYL0) to !ffffffff

16
Total Receptions
16
Unique Gateways
3
Hop Count
23
Payload Bytes
Packet Information
Database ID: 3436989
Mesh Packet ID: 0x8346d8eb
Used for correlation across gateways
Timestamp: 2025-12-11 16:32:36 UTC
From Node: WestFacing (VYL0)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Fried Fish FF1 (FF1)
Channel: LongFast
RSSI: -78 dBm
SNR: 0.75 dBm
Hop Info: 3/3 hops
Start: 3, Limit: 0
Relay Node: 40 BRRN
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:!b2a7bd74
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b2a7bd74
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 Not set uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -78.0 dBm
Signal strength at gateway 		int32
rx_snr 0.75 dB
Signal quality at gateway 		float
rx_time 1765470895
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 64
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765470756.5256944
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a7bd74
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
Signal Metrics: RSSI: -78.0 dBm
SNR: 0.75 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": "!b2a7bd74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697781576, "to": 4294967295, "id": 2202458347, "rx_time": 1765470895, "rx_snr": 0.75, "rx_rssi": -78, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 64, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004618150000ded318bd01257269f9682801b8010e", "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": 1761175922, "location_source": "LOC_MANUAL", "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d00004618150000ded318bd01257269f9682801b8010e
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
Fried Fish FF1 (FF1) Primary 0.000s
Reference 		-78.0 dBm 0.75 dB 3 40 BRRN LongFast 2025-12-11 16:32:36 UTC Current
ClaremontWx.net (CmWx) -3.993s
Before 		-87.0 dBm Unknown 1 f2 p@s! LongFast 2025-12-11 16:32:32 UTC View
Claudiopolis-440c (440c) -3.424s
Before 		-100.0 dBm -17.00 dB 1 f2 p@s! LongFast 2025-12-11 16:32:33 UTC View
25 Washington Ave (25WA) -3.048s
Before 		-75.0 dBm -6.00 dB 2 c9 Penn LongFast 2025-12-11 16:32:33 UTC View
MeshM0xie (M0x) -3.042s
Before 		-102.0 dBm -14.25 dB 2 c9 Penn LongFast 2025-12-11 16:32:33 UTC View
Steiner Studios Tower (SST) -2.990s
Before 		-112.0 dBm -7.25 dB 2 c9 Penn , JLX3 LongFast 2025-12-11 16:32:33 UTC View
K2XAP Gateway (XAPg) -2.944s
Before 		-108.0 dBm -5.75 dB 2 c9 Penn LongFast 2025-12-11 16:32:33 UTC View
Meshtastic 1ca3 (1ca3) -2.682s
Before 		-127.0 dBm -20.00 dB 2 c9 Penn , JLX3 LongFast 2025-12-11 16:32:33 UTC View
K2XAP / nyme.sh (XAP) -2.661s
Before 		-125.0 dBm -21.00 dB 2 c9 Penn , JLX3 LongFast 2025-12-11 16:32:33 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -2.129s
Before 		-104.0 dBm -2.50 dB 2 c9 Penn LongFast 2025-12-11 16:32:34 UTC View
Gemini (GMNI) -2.094s
Before 		-123.0 dBm -10.75 dB 2 c9 Penn LongFast 2025-12-11 16:32:34 UTC View
YMH 1 @ Your Mom’s House (YMH1) -1.892s
Before 		-114.0 dBm -10.50 dB 3 25 25WA LongFast 2025-12-11 16:32:34 UTC View
Mobile Fish 4 (MF4) -0.004s
Before 		-113.0 dBm -10.50 dB 3 40 LongFast 2025-12-11 16:32:36 UTC View
Izutsumi - seano@masto.nyc (izu) +0.512s
After 		-96.0 dBm 0.50 dB 2 5b wvs1 LongFast 2025-12-11 16:32:37 UTC View
nLink-NY-Jamaica1 (NLJ1) +4.106s
After 		-84.0 dBm 5.25 dB 3 dc 9cdc LongFast 2025-12-11 16:32:40 UTC View
Whole Foods Market UES (WFMK) +16.851s
After 		-112.0 dBm -11.75 dB 3 92 9e92 LongFast 2025-12-11 16:32:53 UTC View
16

Total Receptions

16

Unique Gateways