Packet #3376346 Success

POSITION_APP packet from Psst!-05 Elecrow ThinkNode-M1 (968b) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	3376346
Mesh Packet ID:	`0xef4b5787` Used for correlation across gateways
Timestamp:	2025-12-10 16:55:16 UTC
From Node:	Psst!-05 Elecrow ThinkNode-M1 (968b)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	🚢 \| tugboat v4 (🚢)
Channel:	LongFast
RSSI:	-106 dBm
SNR:	-16.25 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3
Relay Node:	`c9` Penn Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: POSITION_APP

Size: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.756838°
Longitude:	-73.891840°
Precision:	15 bits

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:	27 bytes
Gateway:	!b2a6fd60
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 5

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
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b2a6fd60` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (27 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`845059723` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`27` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-106.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.25` dB Signal quality at gateway	float
`rx_time`	`1765385853` 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`	`1765385716.3778539` 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
✓ Reduced position precision: ~729.0m accuracy

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:	`!b2a6fd60`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -106.0 dBm SNR: -16.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	27 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.7568384, "longitude": -73.89184, "altitude": 0, "sats_in_view": null, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b2a6fd60", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 845059723, "to": 4294967295, "id": 4014692231, "rx_time": 1765385853, "rx_snr": -16.25, "rx_rssi": -106, "hop_limit": 3, "hop_start": 5, "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": 3, "payload": "0d00004b18150000f5d31800257fa6396928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407568384, "longitude_i": -738918400, "altitude": 0, "time": 1765385855, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0d00004b18150000f5d31800257fa6396928017800800100b8010f

Hex Analysis:

Size:	27 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
🚢 \| tugboat v4 (🚢) Primary	0.000s Reference	-106.0 dBm	-16.25 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	Current
25 Washington Ave (25WA)	-0.372s Before	-72.0 dBm	-2.50 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	View
Steiner Studios Tower (SST)	-0.366s Before	-113.0 dBm	-5.50 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 16:55:16 UTC	View
ClaremontWx.net (CmWx)	-0.353s Before	-83.0 dBm	4.00 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 16:55:16 UTC	View
drp mobile (drpm)	-0.193s Before	-121.0 dBm	-14.00 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	View
Sunset Soda (p8p)	-0.018s Before	-128.0 dBm	-19.75 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	View
JOS1tastic 1497 (JOS1)	+0.031s After	-106.0 dBm	-8.75 dB	2	`c9`	LongFast	2025-12-10 16:55:16 UTC	View
Morton Williams - seano@masto.nyc (mwb)	+0.128s After	-89.0 dBm	-4.75 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	View
Gemini (GMNI)	+0.305s After	-123.0 dBm	-12.25 dB	2	`c9` Penn	LongFast	2025-12-10 16:55:16 UTC	View
Meshtastic 631c (GRBH)	+1.498s After	-106.0 dBm	-16.25 dB	3	`10` WA2J , 8a10	LongFast	2025-12-10 16:55:17 UTC	View
JLO (fe6e)	+2.106s After	-111.0 dBm	-7.00 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 16:55:18 UTC	View
Meshtastic e41a (GRBT)	+4.670s After	-61.0 dBm	6.50 dB	3	`04` e404 , e104 , 🦏 , CHTG	LongFast	2025-12-10 16:55:21 UTC	View
Mobile Fish 4 (MF4)	+5.012s After	-112.0 dBm	-8.75 dB	4	`b8`	LongFast	2025-12-10 16:55:21 UTC	View
dkTowerBot (dkTB)	+5.318s After	-99.0 dBm	-9.00 dB	2	`4c` JLY3 , SST	LongFast	2025-12-10 16:55:21 UTC	View
Meshtastic fda8 (fda8)	+12.989s After	-81.0 dBm	-15.50 dB	4	`7b` 4b7b	LongFast	2025-12-10 16:55:29 UTC	View
Claudiopolis-440c (440c)	+16.338s After	-88.0 dBm	-4.75 dB	2	`c9` Penn , JLX3	LongFast	2025-12-10 16:55:32 UTC	View
JLO - Queens Weather (QnzW)	+21.648s After	-87.0 dBm	5.25 dB	5	`35` JLX5	LongFast	2025-12-10 16:55:38 UTC	View
K2YYD MQTT Gateway 0b0b (MBMQ)	+60.803s After	-26.0 dBm	7.00 dB	5	`9c` 599c , 0a9c	LongFast	2025-12-10 16:56:17 UTC	View

18

Total Receptions

18

Unique Gateways