Packet #2820157 Success

NODEINFO_APP packet from Harlem Relay (HR) to !ffffffff

10
Total Receptions
10
Unique Gateways
3
Hop Count
73
Payload Bytes
Packet Information
Database ID: 2820157
Mesh Packet ID: 0xfd1bf208
Used for correlation across gateways
Timestamp: 2025-11-27 21:36:39 UTC
From Node: Harlem Relay (HR)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ClaremontWx.net (CmWx)
Channel: LongFast
RSSI: -79 dBm
SNR: 4.75 dBm
Hop Info: 3/3 hops
Start: 3, Limit: 0
Relay Node: c9 Penn
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 73 bytes
Decoded: Yes
Decoded Data:
Long Name:Harlem Relay
Short Name:HR
Node ID:!335d932c
MAC Address:ZOgzXZMs
Hardware:HELTEC_V3
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:73 bytes
Gateway:!27532a57
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:3 / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
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 !27532a57
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 861770540
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 73 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 -79.0 dBm
Signal strength at gateway 		int32
rx_snr 4.75 dB
Signal quality at gateway 		float
rx_time 1764279492
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 1764279399.9828575
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
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: !27532a57
Signal Metrics: RSSI: -79.0 dBm
SNR: 4.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:73 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!335d932c", "long_name": "Harlem Relay", "short_name": "HR", "macaddr": "ZOgzXZMs", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!27532a57", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 861770540, "to": 4294967295, "id": 4246467080, "rx_time": 1764279492, "rx_snr": 4.75, "rx_rssi": -79, "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": 201, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213333356439333263120c4861726c656d2052656c61791a024852220664e8335d932c282b422083f89feaedda2e9c2edb3c3bd1fb4ddb264b287547c1a13c2951193481d6e029", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!335d932c", "long_name": "Harlem Relay", "short_name": "HR", "macaddr": "ZOgzXZMs", "hw_model": "HELTEC_V3", "public_key": "g/if6u3aLpwu2zw70ftN2yZLKHVHwaE8KVEZNIHW4Ck=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a09213333356439333263120c4861726c656d2052656c61791a024852220664e8335d932c282b422083f89feaedda2e9c2edb3c3bd1fb4ddb264b287547c1a13c2951193481d6e029
Hex Analysis:
Size:73 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
ClaremontWx.net (CmWx) Primary 0.000s
Reference 		-79.0 dBm 4.75 dB 3 c9 Penn LongFast 2025-11-27 21:36:39 UTC Current
JOS1tastic 1497 (JOS1) -15.560s
Before 		-37.0 dBm 6.25 dB 3 a8 JOS2 , ETNA LongFast 2025-11-27 21:36:24 UTC View
YMH 2 @ Your Mom’s House (YMH2) -1.036s
Before 		-79.0 dBm -12.00 dB 3 7b 4b7b LongFast 2025-11-27 21:36:38 UTC View
Steiner Studios Tower (SST) -1.024s
Before 		-116.0 dBm -12.50 dB 3 7b 4b7b LongFast 2025-11-27 21:36:38 UTC View
CBZ0 🚕 mobile (CBZ0) -0.668s
Before 		-107.0 dBm -3.50 dB 3 7b 4b7b LongFast 2025-11-27 21:36:39 UTC View
DRP1 Chelsea (DRP1) +0.305s
After 		-79.0 dBm 5.75 dB 3 c9 Penn , JLX3 LongFast 2025-11-27 21:36:40 UTC View
Meshtastic f5c8 (f5c8) +0.813s
After 		-128.0 dBm -19.50 dB 3 7b 4b7b LongFast 2025-11-27 21:36:40 UTC View
LORSANGE (LORS) +2.192s
After 		-110.0 dBm -9.75 dB 3 c9 Penn LongFast 2025-11-27 21:36:42 UTC View
K2XAP / nyme.sh (XAP) +2.468s
After 		-127.0 dBm -18.50 dB 3 c9 Penn , JLX3 LongFast 2025-11-27 21:36:42 UTC View
NHaledon - Dorothy (NHDO) +3.785s
After 		-112.0 dBm -9.50 dB 2 d5 ETNA LongFast 2025-11-27 21:36:43 UTC View
10

Total Receptions

10

Unique Gateways