Packet #3378409 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	3378409
Mesh Packet ID:	`0x41551df6` Used for correlation across gateways
Timestamp:	2025-12-10 17:47:28 UTC
From Node:	Izutsumi - seano@masto.nyc (izu)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Fried Fish FF1 (FF1)
Channel:	LongFast
RSSI:	-86 dBm
SNR:	-0.5 dBm
Hop Info:	3/4 hops Start: 4, Limit: 1
Relay Node:	`0f` 68SD 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:	!b2a7bd74
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	3 / 4

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
+ 4 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` (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`	`1` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-86.0` dBm Signal strength at gateway	int32
`rx_snr`	`-0.50` dB Signal quality at gateway	float
`rx_time`	`1765388985` 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`	`15` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765388848.154334` 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
⚠ Full GPS precision shared
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b2a7bd74`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -86.0 dBm SNR: -0.50 dB

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": "!b2a7bd74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3267998965, "to": 4294967295, "id": 1096097270, "rx_time": 1765388985, "rx_snr": -0.5, "rx_rssi": -86, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 15, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d368946181569cbe4d3182f25a0b239692801b80120", "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": 1765388960, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (22 bytes)

0d368946181569cbe4d3182f25a0b239692801b80120

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
Fried Fish FF1 (FF1) Primary	0.000s Reference	-86.0 dBm	-0.50 dB	3	`0f` 68SD	LongFast	2025-12-10 17:47:28 UTC	Current
Izutsumi - seano@masto.nyc (izu)	-22.602s Before	Unknown	Unknown	0	`f5` izu	LongFast	2025-12-10 17:47:05 UTC	View
25 Washington Ave (25WA)	-5.699s Before	-73.0 dBm	-2.50 dB	1	`c9` Penn	LongFast	2025-12-10 17:47:22 UTC	View
ClaremontWx.net (CmWx)	-5.665s Before	-86.0 dBm	3.25 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 17:47:22 UTC	View
🚢 \| tugboat v4 (🚢)	-5.274s Before	-108.0 dBm	-14.50 dB	1	`c9` Penn	LongFast	2025-12-10 17:47:22 UTC	View
Claudiopolis-440c (440c)	-5.154s Before	-88.0 dBm	-4.50 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 17:47:22 UTC	View
JLO (fe6e)	-5.065s Before	-113.0 dBm	-15.00 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 17:47:23 UTC	View
Steiner Studios Tower (SST)	-4.672s Before	-113.0 dBm	-6.75 dB	1	`c9` Penn , JLX3	LongFast	2025-12-10 17:47:23 UTC	View
YMH 1 @ Your Mom’s House (YMH1)	-3.645s Before	-112.0 dBm	-6.50 dB	1	`4c` JLY3	LongFast	2025-12-10 17:47:24 UTC	View
Meshtastic e41a (GRBT)	-2.810s Before	-119.0 dBm	-9.25 dB	2	`0c` UGKH , 440c	LongFast	2025-12-10 17:47:25 UTC	View
MeshM0xie (M0x)	-2.711s Before	-22.0 dBm	5.75 dB	2	`8d` Mox1	LongFast	2025-12-10 17:47:25 UTC	View
Sunset Soda (p8p)	-1.021s Before	-128.0 dBm	-19.50 dB	1	`57` CmWx	LongFast	2025-12-10 17:47:27 UTC	View
Gemini (GMNI)	-0.075s Before	-107.0 dBm	-12.00 dB	2	`99` JLX9	LongFast	2025-12-10 17:47:28 UTC	View
Mobile Fish 4 (MF4)	+0.049s After	-119.0 dBm	-15.25 dB	3	`0f`	LongFast	2025-12-10 17:47:28 UTC	View
nLink-NY-Jamaica1 (NLJ1)	+1.475s After	-90.0 dBm	-0.25 dB	2	`88` grns , 2f88 , P3NY	LongFast	2025-12-10 17:47:29 UTC	View
Meshtastic fda8 (fda8)	+3.282s After	-81.0 dBm	-16.50 dB	3	`7b` 4b7b	LongFast	2025-12-10 17:47:31 UTC	View
Meshtastic 631c (GRBH)	+5.955s After	-86.0 dBm	2.00 dB	4	`b9` NYCR	LongFast	2025-12-10 17:47:34 UTC	View
BDP3 - Wio L1 (BDP3)	+20.533s After	-110.0 dBm	-19.75 dB	4	`d5` ETNA	LongFast	2025-12-10 17:47:48 UTC	View
Meshtastic 28ec (28ec)	+64.851s After	-124.0 dBm	-13.00 dB	4	-	LongFast	2025-12-10 17:48:33 UTC	View

19

Total Receptions

19

Unique Gateways