Packet #3437205 Success

NODEINFO_APP packet from N1UGK QTH (UGKH) to !ffffffff

12
Total Receptions
12
Unique Gateways
5
Hop Count
72
Payload Bytes
Packet Information
Database ID: 3437205
Mesh Packet ID: 0x68a3270e
Used for correlation across gateways
Timestamp: 2025-12-11 16:36:39 UTC
From Node: N1UGK QTH (UGKH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic 631c (GRBH)
Channel: LongFast
RSSI: -108 dBm
SNR: -18.5 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 3d PDD0 , P1NY
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: 72 bytes
Decoded: Yes
Decoded Data:
Long Name:N1UGK QTH
Short Name:UGKH
Node ID:!a2eb780c
MAC Address:zI2i63gM
Hardware:STATION_G2
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:72 bytes
Gateway:!db51631c
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:5 / 5
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 !db51631c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (72 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2733340684
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 72 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr -18.50 dB
Signal quality at gateway 		float
rx_time 1765471138
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 61
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765470999.6645713
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51631c
Signal Metrics: RSSI: -108.0 dBm
SNR: -18.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:72 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!a2eb780c", "long_name": "N1UGK QTH", "short_name": "UGKH", "macaddr": "zI2i63gM", "hw_model": "STATION_G2" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51631c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733340684, "to": 4294967295, "id": 1755522830, "rx_time": 1765471138, "rx_snr": -18.5, "rx_rssi": -108, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 61, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921613265623738306312094e3155474b205154481a0455474b482206cc8da2eb780c281f4220dd383a6a79276c1b350b67c646f077fd0c99dcb5eb82eb9b7bb0ee6f0ace9c79", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a2eb780c", "long_name": "N1UGK QTH", "short_name": "UGKH", "macaddr": "zI2i63gM", "hw_model": "STATION_G2", "public_key": "3Tg6anknbBs1C2fGRvB3/QyZ3LXrguube7DubwrOnHk=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (72 bytes)
0a0921613265623738306312094e3155474b205154481a0455474b482206cc8da2eb780c281f4220dd383a6a79276c1b350b67c646f077fd0c99dcb5eb82eb9b7bb0ee6f0ace9c79
Hex Analysis:
Size:72 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
Meshtastic 631c (GRBH) Primary 0.000s
Reference 		-108.0 dBm -18.50 dB 5 3d PDD0 , P1NY LongFast 2025-12-11 16:36:39 UTC Current
1 MW 1 West Side | https://nyme.sh (1MW1) -51.918s
Before 		-111.0 dBm -9.00 dB 0 - LongFast 2025-12-11 16:35:47 UTC View
Claudiopolis-440c (440c) -41.263s
Before 		-94.0 dBm -7.00 dB 2 f4 ASW , ⚡1 , QnzW LongFast 2025-12-11 16:35:58 UTC View
ClaremontWx.net (CmWx) -39.074s
Before 		-101.0 dBm -11.75 dB 3 63 XAPn , b063 LongFast 2025-12-11 16:36:00 UTC View
K2XAP Gateway (XAPg) -32.155s
Before 		-41.0 dBm 6.00 dB 4 57 CmWx LongFast 2025-12-11 16:36:07 UTC View
K2XAP / nyme.sh (XAP) -32.026s
Before 		-42.0 dBm 5.75 dB 4 57 CmWx LongFast 2025-12-11 16:36:07 UTC View
Izutsumi - seano@masto.nyc (izu) -29.677s
Before 		-90.0 dBm -5.50 dB 4 5b wvs1 LongFast 2025-12-11 16:36:09 UTC View
Sunset Soda (p8p) -27.834s
Before 		-118.0 dBm -9.50 dB 5 81 Titi LongFast 2025-12-11 16:36:11 UTC View
25 Washington Ave (25WA) -23.564s
Before 		-62.0 dBm 2.75 dB 4 1e 351e LongFast 2025-12-11 16:36:16 UTC View
Steiner Studios Tower (SST) -23.276s
Before 		-119.0 dBm -13.75 dB 4 1e 351e LongFast 2025-12-11 16:36:16 UTC View
YMH 1 @ Your Mom’s House (YMH1) +54.377s
After 		-111.0 dBm -4.75 dB 5 7b 4b7b LongFast 2025-12-11 16:37:34 UTC View
Psalm 23 (3:16) +242.495s
After 		-122.0 dBm -13.00 dB 5 81 Titi LongFast 2025-12-11 16:40:42 UTC View
12

Total Receptions

12

Unique Gateways