Packet #2892179 Success

POSITION_APP packet from Lunchbox 1 (LB1) to swami (swam)

15
Total Receptions
15
Unique Gateways
1
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2892179
Mesh Packet ID: 0x3792cbdc
Used for correlation across gateways
Timestamp: 2025-11-29 11:23:26 UTC
From Node: Lunchbox 1 (LB1)
To Node: swami (swam)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: DRP1 Chelsea (DRP1)
Channel: LongFast
RSSI: -78 dBm
SNR: 6.0 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: c9 Penn , JLX3
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: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:40.763392°
Longitude:-74.003251°
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:27 bytes
Gateway:!ba66323c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:1 / 3
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 !ba66323c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3127261164
Source node ID 		uint32
to 530580140
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 27 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -78.0 dBm
Signal strength at gateway 		int32
rx_snr 6.00 dB
Signal quality at gateway 		float
rx_time 1764415519
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 201
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764415406.7981455
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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !ba66323c
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -78.0 dBm
SNR: 6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.763392, "longitude": -74.0032512, "altitude": 0, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ba66323c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3127261164, "to": 530580140, "id": 932367324, "rx_time": 1764415519, "rx_snr": 6.0, "rx_rssi": -78, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 201, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004c18150000e4d3180025f6d72a6928017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407633920, "longitude_i": -740032512, "altitude": 0, "time": 1764415478, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d00004c18150000e4d3180025f6d72a6928017800800100b8010d
Hex Analysis:
Size:27 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
DRP1 Chelsea (DRP1) Primary 0.000s
Reference 		-78.0 dBm 6.00 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 11:23:26 UTC Current
Steiner Studios Tower (SST) -0.345s
Before 		-113.0 dBm -9.50 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 11:23:26 UTC View
ClaremontWx.net (CmWx) -0.311s
Before 		-80.0 dBm 6.00 dB 1 c9 Penn LongFast 2025-11-29 11:23:26 UTC View
K2XAP / nyme.sh (XAP) +0.227s
After 		-118.0 dBm -5.75 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 11:23:27 UTC View
Claudiopolis-440c (440c) +0.242s
After 		-89.0 dBm -2.75 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 11:23:27 UTC View
Sunset Soda (p8p) +0.873s
After 		-124.0 dBm -12.50 dB 1 57 CmWx LongFast 2025-11-29 11:23:27 UTC View
Fried Fish 1 | nyme.sh (FF1) +0.941s
After 		-80.0 dBm 3.50 dB 2 40 BRRN LongFast 2025-11-29 11:23:27 UTC View
dkTowerBot (dkTB) +1.060s
After 		-109.0 dBm -19.25 dB 2 a8 24a8 , REX LongFast 2025-11-29 11:23:27 UTC View
CW Mobile 1 | https://nyme.sh (CWM1) +2.135s
After 		-52.0 dBm 6.25 dB 2 e6 ⚡ LongFast 2025-11-29 11:23:28 UTC View
YMH 1 @ Your Mom’s House (YMH1) +2.923s
After 		-118.0 dBm -13.75 dB 3 fc LongFast 2025-11-29 11:23:29 UTC View
NHaledon - Dorothy (NHDO) +3.596s
After 		-108.0 dBm -0.75 dB 3 81 RAK3 LongFast 2025-11-29 11:23:30 UTC View
Gowanus Soda (p1p) +6.506s
After 		-109.0 dBm -7.25 dB 2 - LongFast 2025-11-29 11:23:33 UTC View
Meshtastic 631c (631c) +6.537s
After 		-105.0 dBm -15.75 dB 2 - LongFast 2025-11-29 11:23:33 UTC View
Meshtastic 1ca3 (1ca3) +24.119s
After 		-117.0 dBm -10.50 dB 3 e0 Lv4 , 88e0 LongFast 2025-11-29 11:23:50 UTC View
nLink-NY-Jamaica1 (NLJ1) +151.792s
After 		-93.0 dBm -1.00 dB 3 d1 JLY6 LongFast 2025-11-29 11:25:58 UTC View
15

Total Receptions

15

Unique Gateways