Packet #2901072 Success

TEXT_MESSAGE_APP packet from Nicomachus (ncmc) to !ffffffff

17
Total Receptions
16
Unique Gateways
5
Hop Count
42
Payload Bytes
Packet Information
Database ID: 2901072
Mesh Packet ID: 0x17a26866
Used for correlation across gateways
Timestamp: 2025-11-29 15:37:45 UTC
From Node: Nicomachus (ncmc)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: JLY2 - Throggs Neck Solar (JLY2)
Channel: LongFast
RSSI: -96 dBm
SNR: 2.75 dBm
Hop Info: 5/7 hops
Start: 7, Limit: 2
Relay Node: d5
Last byte of the last hop that relayed this packet
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 42 bytes
Decoded: Yes
Text Content:
Testing from lookout hill in Prospect park
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:42 bytes
Gateway:!3d020966
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:5 / 7
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 !3d020966
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (42 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2658555520
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 42 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -96.0 dBm
Signal strength at gateway 		int32
rx_snr 2.75 dB
Signal quality at gateway 		float
rx_time Not set 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 213
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764430665.439415
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: !3d020966
Signal Metrics: RSSI: -96.0 dBm
SNR: 2.75 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!3d020966", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658555520, "to": 4294967295, "id": 396519526, "rx_time": 0, "rx_snr": 2.75, "rx_rssi": -96, "hop_limit": 2, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 213, "tx_after": 0, "decoded": { "portnum": 1, "payload": "54657374696e672066726f6d206c6f6f6b6f75742068696c6c20696e2050726f7370656374207061726b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Testing from lookout hill in Prospect park", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (42 bytes)
54657374696e672066726f6d206c6f6f6b6f75742068696c6c20696e2050726f7370656374207061726b
Hex Analysis:
Size:42 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
JLY2 - Throggs Neck Solar (JLY2) Primary 0.000s
Reference 		-96.0 dBm 2.75 dB 5 d5 LongFast 2025-11-29 15:37:45 UTC Current
Gowanus Soda (p1p) -48.042s
Before 		-115.0 dBm -9.00 dB 1 31 a031 , ν LongFast 2025-11-29 15:36:57 UTC View
Sunset Soda (p8p) -46.115s
Before 		-113.0 dBm -2.75 dB 2 d4 🦮 LongFast 2025-11-29 15:36:59 UTC View
Steiner Studios Tower (SST) -45.070s
Before 		-113.0 dBm -10.00 dB 2 c9 Penn , JLX3 LongFast 2025-11-29 15:37:00 UTC View
ClaremontWx.net (CmWx) -45.018s
Before 		-80.0 dBm 5.75 dB 2 c9 Penn LongFast 2025-11-29 15:37:00 UTC View
DRP1 Chelsea (DRP1) -44.648s
Before 		-79.0 dBm 5.50 dB 2 c9 Penn , JLX3 LongFast 2025-11-29 15:37:00 UTC View
SIVA (a5fb) -44.580s
Before 		-109.0 dBm -15.25 dB 2 c9 Penn LongFast 2025-11-29 15:37:00 UTC View
Claudiopolis-440c (440c) -44.478s
Before 		-90.0 dBm -5.25 dB 2 c9 Penn , JLX3 LongFast 2025-11-29 15:37:00 UTC View
K2XAP / nyme.sh (XAP) -43.379s
Before 		-117.0 dBm -4.25 dB 2 c9 Penn , JLX3 LongFast 2025-11-29 15:37:02 UTC View
YMH 2 @ Your Mom’s House (YMH2) -43.078s
Before 		-58.0 dBm -5.25 dB 3 90 NLG1 LongFast 2025-11-29 15:37:02 UTC View
Meshtastic 631c (631c) -41.542s
Before 		-102.0 dBm -11.00 dB 2 94 p1p LongFast 2025-11-29 15:37:03 UTC View
K2XAP / nyme.sh (XAP) -38.549s
Before 		-117.0 dBm -4.25 dB 2 c9 Penn , JLX3 LongFast 2025-11-29 15:37:06 UTC View
NHaledon - Dorothy (NHDO) -2.982s
Before 		-110.0 dBm -5.25 dB 5 d5 ETNA LongFast 2025-11-29 15:37:42 UTC View
nLink-NY-Jamaica1 (NLJ1) -2.595s
Before 		-106.0 dBm -7.75 dB 5 d5 ETNA LongFast 2025-11-29 15:37:42 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) +5.172s
After 		-54.0 dBm 5.50 dB 7 2b MB01 LongFast 2025-11-29 15:37:50 UTC View
dkTowerBot (dkTB) +87.054s
After 		-109.0 dBm -20.25 dB 6 66 JLY2 LongFast 2025-11-29 15:39:12 UTC View
Lv4 - Heltec V4 Green (Lv4) +134.342s
After 		-98.0 dBm -7.00 dB 5 d5 ETNA , 🟠 LongFast 2025-11-29 15:39:59 UTC View
17

Total Receptions

16

Unique Gateways