Packet #3440017

Packet Information

Database ID:	3440017
Mesh Packet ID:	`0x2bcba14b` Used for correlation across gateways
Timestamp:	2025-12-11 17:47:26 UTC
From Node:	Wilbur Post @ GCNB (GCNB)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	Fried Fish FF1 (FF1)
Channel:	LongFast
RSSI:	-88 dBm
SNR:	-7.75 dBm
Hop Info:	5/7 hops Start: 7, Limit: 2
Relay Node:	`b8` 🫠 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: 32 bytes

Decoded: Yes

Text Content:

Howdy partner, what's new in NJ?

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:	32 bytes
Gateway:	!b2a7bd74
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

Field	Value
`gateway_id`	`!b2a7bd74` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (32 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`4201360636` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`32` 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`	`-88.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.75` dB Signal quality at gateway	float
`rx_time`	`1765475385` 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`	`184` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765475246.5653172` 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:	`!b2a7bd74`
Signal Metrics:	RSSI: -88.0 dBm SNR: -7.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b2a7bd74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4201360636, "to": 4294967295, "id": 734765387, "rx_time": 1765475385, "rx_snr": -7.75, "rx_rssi": -88, "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": 184, "tx_after": 0, "decoded": { "portnum": 1, "payload": "486f77647920706172746e65722c20776861742773206e657720696e204e4a3f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Howdy partner, what's new in NJ?", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (32 bytes)

486f77647920706172746e65722c20776861742773206e657720696e204e4a3f

Hex Analysis:

Size:	32 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
Fried Fish FF1 (FF1) Primary	0.000s Reference	-88.0 dBm	-7.75 dB	5	`b8` 🫠	LongFast	2025-12-11 17:47:26 UTC	Current
nLink-NY-Jamaica1 (NLJ1)	-32.725s Before	-91.0 dBm	Unknown	3	`d1` JLY6	LongFast	2025-12-11 17:46:53 UTC	View
NorthHaledon - Dorothy (NHDO)	-15.947s Before	-119.0 dBm	-12.50 dB	7	`b4` PARK	LongFast	2025-12-11 17:47:10 UTC	View
MeshM0xie (M0x)	-10.051s Before	-110.0 dBm	-17.00 dB	6	`8b` JLX2	LongFast	2025-12-11 17:47:16 UTC	View
Whole Foods Market UES (WFMK)	-5.617s Before	-113.0 dBm	-10.50 dB	2	`d5` ETNA	LongFast	2025-12-11 17:47:20 UTC	View
dkTowerBot (dkTB)	-3.451s Before	-103.0 dBm	-14.50 dB	3	`2b` P2NY , DCS1	LongFast	2025-12-11 17:47:23 UTC	View
K2YYD MQTT Gateway 0b0b (MBMQ)	-2.741s Before	-39.0 dBm	7.00 dB	4	`3f` MBRP	LongFast	2025-12-11 17:47:23 UTC	View
Izutsumi - seano@masto.nyc (izu)	-1.428s Before	-101.0 dBm	-5.00 dB	4	`13` 🎄	LongFast	2025-12-11 17:47:25 UTC	View
K2XAP / nyme.sh (XAP)	-1.104s Before	-120.0 dBm	-11.00 dB	4	`81` Titi , JLO9	LongFast	2025-12-11 17:47:25 UTC	View
Sunset Soda (p8p)	-0.999s Before	-119.0 dBm	-11.75 dB	4	`81` Titi	LongFast	2025-12-11 17:47:25 UTC	View
Mobile Fish 4 (MF4)	-0.048s Before	-119.0 dBm	-16.75 dB	5	`b8`	LongFast	2025-12-11 17:47:26 UTC	View
ClaremontWx.net (CmWx)	+1.381s After	-87.0 dBm	-1.50 dB	6	`f2` p@s!	LongFast	2025-12-11 17:47:27 UTC	View
Claudiopolis-440c (440c)	+1.933s After	-98.0 dBm	-15.50 dB	6	`f2` p@s!	LongFast	2025-12-11 17:47:28 UTC	View
Meshtastic 1ca3 (1ca3)	+5.574s After	-121.0 dBm	-18.50 dB	6	`e0` Lv4 , 88e0	LongFast	2025-12-11 17:47:32 UTC	View
1 MW 1 West Side \| https://nyme.sh (1MW1)	+6.498s After	-116.0 dBm	-14.00 dB	4	`88` P3NY	LongFast	2025-12-11 17:47:33 UTC	View

15

Total Receptions

15

Unique Gateways

Packet #3440017 Success