Packet #2562540 Success

TEXT_MESSAGE_APP packet from Wilbur Post @ GCNA (GCNA) to !ffffffff

17
Total Receptions
17
Unique Gateways
0
Hop Count
2
Payload Bytes
Packet Information
Database ID: 2562540
Mesh Packet ID: 0x2e8001aa
Used for correlation across gateways
Timestamp: 2025-11-21 19:09:20 UTC
From Node: Wilbur Post @ GCNA (GCNA)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: KD2-1 (KD21)
Channel: LongFast
RSSI: -102 dBm
SNR: -15.75 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 70 GCNA
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: 2 bytes
Decoded: Yes
Text Content:
QP
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:2 bytes
Gateway:!3881f7d3
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:Unknown / 7
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
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !3881f7d3
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (2 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770256240
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 2 bytes size
hop_limit 7
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -102.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1763752258
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 112
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1763752160.0845182
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !3881f7d3
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -102.0 dBm
SNR: -15.75 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!3881f7d3", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770256240, "to": 4294967295, "id": 780140970, "rx_time": 1763752258, "rx_snr": -15.75, "rx_rssi": -102, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 112, "tx_after": 0, "decoded": { "portnum": 1, "payload": "5150", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "QP", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (2 bytes)
5150
Hex Analysis:
Size:2 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
KD2-1 (KD21) Primary 0.000s
Reference 		-102.0 dBm -15.75 dB 0 70 GCNA LongFast 2025-11-21 19:09:20 UTC Current
K2YYD MQTT Gateway 0b0b (MBMQ) +47.411s
After 		-67.0 dBm 2.00 dB 2 6c LongFast 2025-11-21 19:10:07 UTC View
Steiner Studios Tower (SST) +47.454s
After 		-125.0 dBm -17.50 dB 2 8b JLX2 , 658b LongFast 2025-11-21 19:10:07 UTC View
K2XAP V4 MS (XAP4) +49.776s
After 		-64.0 dBm Unknown 2 c9 Penn LongFast 2025-11-21 19:10:09 UTC View
ClaremontWx.net (CmWx) +49.803s
After 		-83.0 dBm 4.25 dB 2 c9 Penn LongFast 2025-11-21 19:10:09 UTC View
DRP1 Chelsea (DRP1) +50.210s
After 		-79.0 dBm 5.75 dB 2 c9 Penn , JLX3 LongFast 2025-11-21 19:10:10 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) +50.755s
After 		-97.0 dBm 3.50 dB 2 c9 Penn LongFast 2025-11-21 19:10:10 UTC View
K2XAP / nyme.sh (XAP) +50.859s
After 		-115.0 dBm -17.75 dB 2 c9 Penn , JLX3 LongFast 2025-11-21 19:10:10 UTC View
dkTowerBot (dkTB) +51.151s
After 		-102.0 dBm -12.00 dB 3 28 b028 LongFast 2025-11-21 19:10:11 UTC View
K2CAT/Home (K2CT) +51.305s
After 		-103.0 dBm 3.50 dB 4 2f KCAT LongFast 2025-11-21 19:10:11 UTC View
Claudiopolis-440c (440c) +52.362s
After 		-102.0 dBm -15.00 dB 3 bc pppp , SOUR LongFast 2025-11-21 19:10:12 UTC View
Gowanus Soda (p1p) +56.498s
After 		-112.0 dBm -10.25 dB 4 - LongFast 2025-11-21 19:10:16 UTC View
Meshtastic 631c (631c) +56.513s
After 		-106.0 dBm -16.75 dB 4 - LongFast 2025-11-21 19:10:16 UTC View
Sunset Soda (p8p) +57.156s
After 		-127.0 dBm -20.00 dB 2 57 CmWx LongFast 2025-11-21 19:10:17 UTC View
Meshtastic e41a (GRBT) +60.954s
After 		-87.0 dBm 4.00 dB 6 10 WA2J LongFast 2025-11-21 19:10:21 UTC View
Fried Fish 1 | nyme.sh (FF1) +63.059s
After 		-94.0 dBm -3.25 dB 4 0f 68SD LongFast 2025-11-21 19:10:23 UTC View
MeshM0xie (M0x) +856.748s
After 		-105.0 dBm -19.00 dB 2 b8 JLY4 LongFast 2025-11-21 19:23:36 UTC View
17

Total Receptions

17

Unique Gateways