Packet #1700041 Success

POSITION_APP packet from Lv4 - Heltec V4 Green (Lv4) to !ffffffff

13
Total Receptions
12
Unique Gateways
2
Hop Count
37
Payload Bytes
Packet Information
Database ID: 1700041
Mesh Packet ID: 0x371a4363
Used for correlation across gateways
Timestamp: 2025-11-07 17:33:17 UTC
From Node: Lv4 - Heltec V4 Green (Lv4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: 1 MW 1 West Side | https://nyme.sh (1MW1)
Channel: LongFast
RSSI: -119 dBm
SNR: -15.5 dBm
Hop Info: 2/6 hops
Start: 6, Limit: 4
Relay Node: 54 3354
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.763392°
Longitude:-73.950822°
Altitude:218 m
Satellites:6
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:37 bytes
Gateway:!db2959ec
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 6
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 !db2959ec
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997325024
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 6
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -119.0 dBm
Signal strength at gateway 		int32
rx_snr -15.50 dB
Signal quality at gateway 		float
rx_time 1762536864
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 84
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1762536797.3131416
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: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db2959ec
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -119.0 dBm
SNR: -15.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.763392, "longitude": -73.9508224, "altitude": 218, "sats_in_view": 6, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db2959ec", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997325024, "to": 4294967295, "id": 924468067, "rx_time": 1762536864, "rx_snr": -15.5, "rx_rssi": -119, "hop_limit": 4, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 84, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004c18150000ecd318da0125972d0e69280258ee0278038001a0f7a406980106b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407633920, "longitude_i": -739508224, "altitude": 218, "time": 1762536855, "location_source": "LOC_INTERNAL", "PDOP": 366, "ground_speed": 3, "ground_track": 13188000, "sats_in_view": 6, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00004c18150000ecd318da0125972d0e69280258ee0278038001a0f7a406980106b8010d
Hex Analysis:
Size:37 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 		-119.0 dBm -15.50 dB 2 54 3354 LongFast 2025-11-07 17:33:17 UTC Current
YMH 2 @ Your Mom’s House (YMH2) -1.905s
Before 		-64.0 dBm 3.50 dB 2 90 NLG1 LongFast 2025-11-07 17:33:15 UTC View
aurelia (🧚) +1.639s
After 		-111.0 dBm -2.50 dB 2 56 JLX6 LongFast 2025-11-07 17:33:18 UTC View
dkTowerBot (dkTB) +3.200s
After 		-96.0 dBm -10.00 dB 3 4c JLY3 , SST LongFast 2025-11-07 17:33:20 UTC View
DRP0 Astoria (DRP0) +4.650s
After 		-64.0 dBm 6.00 dB 4 ac JJ00 , swam , 🌀 , A3WS , FF1 , 🌃 , 09ac , feac , 98ac LongFast 2025-11-07 17:33:21 UTC View
JOS1tastic 1497 (JOS1) +5.614s
After 		-65.0 dBm 6.25 dB 4 aa JOSX LongFast 2025-11-07 17:33:22 UTC View
JOS1tastic 1497 (JOS1) +29.027s
After 		-121.0 dBm -16.00 dB 2 b4 PARK LongFast 2025-11-07 17:33:46 UTC View
ClaremontWx.net (CmWx) +45.014s
After 		-97.0 dBm -8.50 dB 5 5b P0NY LongFast 2025-11-07 17:34:02 UTC View
K2XAP / nyme.sh (XAP) +46.933s
After 		-91.0 dBm 5.50 dB 6 78 SCP2 LongFast 2025-11-07 17:34:04 UTC View
Claudiopolis-440c (440c) +54.719s
After 		-99.0 dBm -9.25 dB 5 28 b028 , 8b28 LongFast 2025-11-07 17:34:12 UTC View
Poncho@pft! | MedSlow (pft!) +57.036s
After 		-127.0 dBm -18.50 dB 6 - LongFast 2025-11-07 17:34:14 UTC View
Penn Plaza (Penn) +97.069s
After 		Unknown 5.75 dB 0 e0 Lv4 LongFast 2025-11-07 17:34:54 UTC View
nLink-NY-Jamaica1 (NLJ1) +993.994s
After 		-74.0 dBm 5.25 dB 4 dc 9cdc LongFast 2025-11-07 17:49:51 UTC View
13

Total Receptions

12

Unique Gateways