Packet #3377544

Packet Information

Database ID:	3377544
Mesh Packet ID:	`0x7d14f4ea` Used for correlation across gateways
Timestamp:	2025-12-10 17:24:11 UTC
From Node:	Meshtastic e41a (GRBT)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	JOS1tastic 1497 (JOS1)
Channel:	LongFast
RSSI:	-105 dBm
SNR:	-6.75 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5
Relay Node:	`c9` Last byte of the last hop that relayed this packet

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 39 bytes

Decoded: Yes

Text Content:

I cannot get enough caffeine this week.

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:	39 bytes
Gateway:	!b8581497
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:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b8581497` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (39 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1888085018` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`39` 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`	`-105.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.75` dB Signal quality at gateway	float
`rx_time`	`1765387587` 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`	`1765387451.11938` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b8581497`
Signal Metrics:	RSSI: -105.0 dBm SNR: -6.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b8581497", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1888085018, "to": 4294967295, "id": 2098525418, "rx_time": 1765387587, "rx_snr": -6.75, "rx_rssi": -105, "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": 201, "tx_after": 0, "decoded": { "portnum": 1, "payload": "492063616e6e6f742067657420656e6f756768206361666665696e652074686973207765656b2e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "I cannot get enough caffeine this week.", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (39 bytes)

492063616e6e6f742067657420656e6f756768206361666665696e652074686973207765656b2e

Hex Analysis:

Size:	39 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
JOS1tastic 1497 (JOS1) Primary	0.000s Reference	-105.0 dBm	-6.75 dB	2	`c9`	LongFast	2025-12-10 17:24:11 UTC	Current
Meshtastic e41a (GRBT)	-14.789s Before	Unknown	Unknown	0	`1a` GRBT	LongFast	2025-12-10 17:23:56 UTC	View
Meshtastic e41a (GRBT)	-7.310s Before	Unknown	Unknown	0	`1a` GRBT	LongFast	2025-12-10 17:24:03 UTC	View
25 Washington Ave (25WA)	-0.465s Before	-73.0 dBm	-3.00 dB	2	`c9` Penn	LongFast	2025-12-10 17:24:10 UTC	View
Steiner Studios Tower (SST)	-0.458s Before	-113.0 dBm	-6.50 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 17:24:10 UTC	View
ClaremontWx.net (CmWx)	-0.442s Before	-84.0 dBm	3.75 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 17:24:10 UTC	View
drp mobile (drpm)	-0.178s Before	-121.0 dBm	-14.00 dB	2	`c9` Penn	LongFast	2025-12-10 17:24:10 UTC	View
JLO (fe6e)	-0.056s Before	-111.0 dBm	-8.25 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 17:24:11 UTC	View
🚢 \| tugboat v4 (🚢)	-0.014s Before	-108.0 dBm	-13.50 dB	2	`c9` Penn	LongFast	2025-12-10 17:24:11 UTC	View
Morton Williams - seano@masto.nyc (mwb)	+0.015s After	-88.0 dBm	3.75 dB	2	`c9` Penn	LongFast	2025-12-10 17:24:11 UTC	View
Gemini (GMNI)	+0.350s After	-124.0 dBm	-11.25 dB	2	`c9` Penn	LongFast	2025-12-10 17:24:11 UTC	View
Claudiopolis-440c (440c)	+0.385s After	-88.0 dBm	-4.50 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 17:24:11 UTC	View
Meshtastic 631c (GRBH)	+3.171s After	-106.0 dBm	-16.75 dB	4	`10` WA2J , 8a10	LongFast	2025-12-10 17:24:14 UTC	View
Fried Fish FF1 (FF1)	+3.257s After	-89.0 dBm	-19.75 dB	4	`b8` 🫠	LongFast	2025-12-10 17:24:14 UTC	View
Mobile Fish 4 (MF4)	+3.287s After	-114.0 dBm	-9.50 dB	4	`b8`	LongFast	2025-12-10 17:24:14 UTC	View
Whole Foods Market UES (WFMK)	+4.824s After	-103.0 dBm	-2.75 dB	4	`b4` PARK	LongFast	2025-12-10 17:24:15 UTC	View
Meshtastic 1ca3 (1ca3)	+6.223s After	-115.0 dBm	-9.50 dB	4	`a7`	LongFast	2025-12-10 17:24:17 UTC	View
Meshtastic 28ec (28ec)	+6.819s After	-42.0 dBm	6.50 dB	5	-	LongFast	2025-12-10 17:24:17 UTC	View
nLink-NY-Jamaica1 (NLJ1)	+9.134s After	-92.0 dBm	2.75 dB	3	`88` grns , 2f88 , P3NY	LongFast	2025-12-10 17:24:20 UTC	View
dkTowerBot (dkTB)	+26.008s After	-104.0 dBm	-17.50 dB	3	`5b` wvs1 , P0NY , 📟	LongFast	2025-12-10 17:24:37 UTC	View
YMH 1 @ Your Mom’s House (YMH1)	+52.964s After	-113.0 dBm	-8.00 dB	6	`7b` 4b7b	LongFast	2025-12-10 17:25:04 UTC	View

21

Total Receptions

20

Unique Gateways

Packet #3377544 Success