Packet #2513656 Success

TEXT_MESSAGE_APP packet from Nicomachus (ncmc) to !ffffffff

21
Total Receptions
21
Unique Gateways
2
Hop Count
4
Payload Bytes
Packet Information
Database ID: 2513656
Mesh Packet ID: 0xab878a51
Used for correlation across gateways
Timestamp: 2025-11-21 01:28:05 UTC
From Node: Nicomachus (ncmc)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: ClaremontWx.net (CmWx)
Channel: LongFast
RSSI: -99 dBm
SNR: -13.0 dBm
Hop Info: 2/7 hops
Start: 7, Limit: 5
Relay Node: 0c MG , 440c
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 4 bytes
Decoded: Yes
Text Content:
👋
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:4 bytes
Gateway:!27532a57
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:2 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
âš  Visible to all nodes on channel
âš  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 (4 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 4 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -99.0 dBm
Signal strength at gateway 		int32
rx_snr -13.00 dB
Signal quality at gateway 		float
rx_time 1763688550
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 12
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1763688485.0897276
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:
  • âš  Visible to all nodes on channel
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  Multi-hop path visible (2 hops)
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !27532a57
Signal Metrics: RSSI: -99.0 dBm
SNR: -13.00 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!27532a57", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658555520, "to": 4294967295, "id": 2877786705, "rx_time": 1763688550, "rx_snr": -13.0, "rx_rssi": -99, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 12, "tx_after": 0, "decoded": { "portnum": 1, "payload": "f09f918b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "👋", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (4 bytes)
f09f918b
Hex Analysis:
Size:4 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 		-99.0 dBm -13.00 dB 2 0c MG , 440c LongFast 2025-11-21 01:28:05 UTC Current
Claudiopolis-440c (440c) -2.482s
Before 		-88.0 dBm -6.50 dB 1 c4 📨 , R01 LongFast 2025-11-21 01:28:02 UTC View
dkTowerBot (dkTB) +1.833s
After 		-105.0 dBm -17.75 dB 2 e9 pab LongFast 2025-11-21 01:28:06 UTC View
Gowanus Soda (p1p) +1.975s
After 		-109.0 dBm -6.50 dB 1 - LongFast 2025-11-21 01:28:07 UTC View
Meshtastic 631c (631c) +1.992s
After 		-107.0 dBm -16.25 dB 1 - LongFast 2025-11-21 01:28:07 UTC View
Poncho@pft_ (pft_) +2.105s
After 		-109.0 dBm -5.25 dB 2 e9 pab LongFast 2025-11-21 01:28:07 UTC View
DRP1 Chelsea (DRP1) +2.243s
After 		-106.0 dBm -4.50 dB 2 e9 pab , dmbl LongFast 2025-11-21 01:28:07 UTC View
Steiner Studios Tower (SST) +2.751s
After 		-113.0 dBm -7.00 dB 3 c9 Penn , JLX3 LongFast 2025-11-21 01:28:07 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) +2.845s
After 		-115.0 dBm -10.00 dB 2 e9 pab , 📶 LongFast 2025-11-21 01:28:07 UTC View
K2XAP V4 MS (XAP4) +2.896s
After 		-66.0 dBm 2.25 dB 3 c9 Penn LongFast 2025-11-21 01:28:07 UTC View
K2XAP / nyme.sh (XAP) +3.242s
After 		-124.0 dBm -12.00 dB 3 c9 Penn , JLX3 LongFast 2025-11-21 01:28:08 UTC View
KD2-1 (KD21) +3.282s
After 		-107.0 dBm -2.25 dB 3 c9 LongFast 2025-11-21 01:28:08 UTC View
Fried Fish 1 | nyme.sh (FF1) +4.514s
After 		-104.0 dBm -14.00 dB 4 - LongFast 2025-11-21 01:28:09 UTC View
MeshM0xie (M0x) +5.318s
After 		-103.0 dBm -9.50 dB 4 16 JLX1 LongFast 2025-11-21 01:28:10 UTC View
Sunset Soda (p8p) +5.328s
After 		-126.0 dBm -14.25 dB 3 57 CmWx LongFast 2025-11-21 01:28:10 UTC View
bit0fun | nyme.sh (🟠) +5.348s
After 		-90.0 dBm 8.25 dB 4 31 a031 , ν LongFast 2025-11-21 01:28:10 UTC View
Sour Lime Base 0 (SLB0) +7.230s
After 		-22.0 dBm 6.25 dB 4 c8 LongFast 2025-11-21 01:28:12 UTC View
YMH 1 @ Your Mom’s House (YMH1) +8.985s
After 		-111.0 dBm -4.25 dB 7 56 JLX6 LongFast 2025-11-21 01:28:14 UTC View
DRP0 Astoria (DRP0) +11.847s
After 		-54.0 dBm 6.50 dB 7 ac JJ00 , swam , 🌀 , A3WS , FF1 , 🌃 , 09ac , feac , 98ac LongFast 2025-11-21 01:28:16 UTC View
YMH 2 @ Your Mom’s House (YMH2) +17.219s
After 		-64.0 dBm 0.25 dB 4 90 NLG1 LongFast 2025-11-21 01:28:22 UTC View
denvermullets (dmlt) +117.965s
After 		-97.0 dBm -3.75 dB 3 c9 Penn , JLX3 LongFast 2025-11-21 01:30:03 UTC View
21

Total Receptions

21

Unique Gateways