Packet #3375985 Success

POSITION_APP packet from Izutsumi - seano@masto.nyc (izu) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	3375985
Mesh Packet ID:	`0xf23a45f5` Used for correlation across gateways
Timestamp:	2025-12-10 16:47:46 UTC
From Node:	Izutsumi - seano@masto.nyc (izu)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Izutsumi - seano@masto.nyc (izu)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/4 hops Start: 4, Limit: 4
Relay Node:	`f5` izu 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: 22 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.727583°
Longitude:	-73.998044°
Altitude:	47 m
Precision:	32 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:	22 bytes
Gateway:	!c2c9b4f5
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 4

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

Field	Value
`gateway_id`	`!c2c9b4f5` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (22 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3267998965` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1765385401` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`245` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765385266.158147` 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
⚠ Full GPS precision shared

MQTT-Specific Fields

Gateway ID:	`!c2c9b4f5`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	22 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.727583, "longitude": -73.9980439, "altitude": 47, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!c2c9b4f5", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3267998965, "to": 4294967295, "id": 4063905269, "rx_time": 1765385401, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 245, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d368946181569cbe4d3182f25b9a439692801b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407275830, "longitude_i": -739980439, "altitude": 47, "time": 1765385401, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (22 bytes)

0d368946181569cbe4d3182f25b9a439692801b80120

Hex Analysis:

Size:	22 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
Izutsumi - seano@masto.nyc (izu) Primary	0.000s Reference	Unknown	Unknown	0	`f5` izu	LongFast	2025-12-10 16:47:46 UTC	Current
25 Washington Ave (25WA)	+18.699s After	-71.0 dBm	-2.75 dB	1	`c9` Penn	LongFast	2025-12-10 16:48:04 UTC	View
Steiner Studios Tower (SST)	+18.704s After	-113.0 dBm	-6.75 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 16:48:04 UTC	View
MeshM0xie (M0x)	+18.707s After	-111.0 dBm	-17.75 dB	1	`c9` Penn	LongFast	2025-12-10 16:48:04 UTC	View
NorthHaledon - Dorothy (NHDO)	+18.711s After	-120.0 dBm	-10.25 dB	1	`c9` Penn	LongFast	2025-12-10 16:48:04 UTC	View
ClaremontWx.net (CmWx)	+18.727s After	-84.0 dBm	2.75 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 16:48:04 UTC	View
Meshtastic f5c8 (f5c8)	+18.925s After	-113.0 dBm	-2.25 dB	1	`c9` Penn	LongFast	2025-12-10 16:48:05 UTC	View
🚢 \| tugboat v4 (🚢)	+19.095s After	-106.0 dBm	-13.50 dB	1	`c9` Penn	LongFast	2025-12-10 16:48:05 UTC	View
Claudiopolis-440c (440c)	+19.311s After	-88.0 dBm	-4.50 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 16:48:05 UTC	View
JLO (fe6e)	+19.788s After	-109.0 dBm	-10.50 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 16:48:05 UTC	View
Meshtastic 1ca3 (1ca3)	+22.019s After	-124.0 dBm	-17.25 dB	3	`e0` Lv4 , 88e0	LongFast	2025-12-10 16:48:08 UTC	View
!ebb328a2 (28a2)	+23.422s After	-89.0 dBm	1.25 dB	4	`13` kor1	LongFast	2025-12-10 16:48:09 UTC	View
Meshtastic e41a (GRBT)	+24.518s After	-127.0 dBm	-18.50 dB	2	`0c` UGKH , 440c	LongFast	2025-12-10 16:48:10 UTC	View
Sunset Soda (p8p)	+27.053s After	-119.0 dBm	-10.50 dB	4	`d4` 🦮	LongFast	2025-12-10 16:48:13 UTC	View
Whole Foods Market UES (WFMK)	+28.224s After	-108.0 dBm	-7.75 dB	3	`24` KGB2	LongFast	2025-12-10 16:48:14 UTC	View
dkTowerBot (dkTB)	+41.610s After	-106.0 dBm	-18.50 dB	3	`7b` 4b7b	LongFast	2025-12-10 16:48:27 UTC	View
Meshtastic 28ec (28ec)	+44.400s After	-39.0 dBm	7.00 dB	4	-	LongFast	2025-12-10 16:48:30 UTC	View
Mobile Fish 4 (MF4)	+53.343s After	-118.0 dBm	-15.00 dB	3	`0f`	LongFast	2025-12-10 16:48:39 UTC	View
Fried Fish FF1 (FF1)	+55.006s After	-82.0 dBm	-12.50 dB	4	`40` BRRN	LongFast	2025-12-10 16:48:41 UTC	View
nLink-NY-Jamaica1 (NLJ1)	+66.949s After	-102.0 dBm	-7.50 dB	2	`d8` 46d8	LongFast	2025-12-10 16:48:53 UTC	View
Mercury01 (MRC1)	+78.502s After	-124.0 dBm	-13.00 dB	3	`10`	LongFast	2025-12-10 16:49:04 UTC	View
Meshtastic 631c (GRBH)	+84.442s After	-102.0 dBm	-12.50 dB	4	`2d` 🪟	LongFast	2025-12-10 16:49:10 UTC	View

22

Total Receptions

22

Unique Gateways