Packet #1923148 Success

POSITION_APP packet from !b1b7dfe8 to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	1923148
Mesh Packet ID:	`0x7e4580ec` Used for correlation across gateways
Timestamp:	2025-11-12 01:23:08 UTC
From Node:	!b1b7dfe8 (dfe8)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	SACKMESHv3 \| https://nyme.sh (SMv3)
Channel:	LongFast
RSSI:	-122 dBm
SNR:	-13.5 dBm
Hop Info:	3/6 hops Start: 6, Limit: 3
Relay Node:	`e6` Last byte of the last hop that relayed this packet

Payload Data

Protocol: POSITION_APP

Size: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.740299°
Longitude:	-73.848448°
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:	27 bytes
Gateway:	!9ea14104
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	3 / 6

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`	`!9ea14104` 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`	`2981617640` 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`	`6` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-122.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.50` dB Signal quality at gateway	float
`rx_time`	`1762910666` 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`	`230` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1762910588.936219` 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:	`!9ea14104`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -122.0 dBm SNR: -13.50 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": 40.7402985, "longitude": -73.8484484, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9ea14104", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2981617640, "to": 4294967295, "id": 2118484204, "rx_time": 1762910666, "rx_snr": -13.5, "rx_rssi": -122, "hop_limit": 3, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 230, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0de979481815fc9efbd318002554a9136928017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407402985, "longitude_i": -738484484, "altitude": 0, "time": 1762896212, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0de979481815fc9efbd318002554a9136928017800800100b80120

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
SACKMESHv3 \| https://nyme.sh (SMv3) Primary	0.000s Reference	-122.0 dBm	-13.50 dB	3	`e6`	LongFast	2025-11-12 01:23:08 UTC	Current
Lv4 - Heltec V4 Green (Lv4)	-28.554s Before	-13.0 dBm	5.75 dB	0	`e8` dfe8	LongFast	2025-11-12 01:22:40 UTC	View
CBZ0 🚕 mobile (CBZ0)	-8.024s Before	-117.0 dBm	-10.75 dB	2	`d5` ETNA	LongFast	2025-11-12 01:23:00 UTC	View
Meshtastic b808 (b808)	-7.866s Before	-95.0 dBm	-2.75 dB	2	`d5` ETNA	LongFast	2025-11-12 01:23:01 UTC	View
dkTowerBot (dkTB)	-6.970s Before	-100.0 dBm	-9.25 dB	3	`4c` JLY3 , SST	LongFast	2025-11-12 01:23:01 UTC	View
Steiner Studios Tower (SST)	-4.260s Before	-106.0 dBm	-1.50 dB	4	`bb` WyCt	LongFast	2025-11-12 01:23:04 UTC	View
Meshtastic 631c (631c)	-3.907s Before	-98.0 dBm	-7.75 dB	4	`bb` WyCt	LongFast	2025-11-12 01:23:05 UTC	View
DRP1 Chelsea (DRP1)	-2.365s Before	-78.0 dBm	6.25 dB	5	`a8` 2ea8 , MPH1 , ETNA	LongFast	2025-11-12 01:23:06 UTC	View
1 MW 1 West Side \| https://nyme.sh (1MW1)	-2.048s Before	-113.0 dBm	-9.25 dB	5	`a8`	LongFast	2025-11-12 01:23:06 UTC	View
Meshtastic 1ca3 (1ca3)	-0.064s Before	-115.0 dBm	-13.00 dB	4	`70`	LongFast	2025-11-12 01:23:08 UTC	View
Meshtastic e41a (GRBT)	+0.465s After	-115.0 dBm	-7.25 dB	6	`5b` P0NY	LongFast	2025-11-12 01:23:09 UTC	View
🐎📨 mobile (📨)	+0.741s After	-64.0 dBm	6.00 dB	6	`5b` mcr1 , P0NY , 📟	LongFast	2025-11-12 01:23:09 UTC	View
ClaremontWx.net (CmWx)	+1.295s After	-79.0 dBm	4.00 dB	6	`c9` Penn	LongFast	2025-11-12 01:23:10 UTC	View
K2XAP / nyme.sh (XAP)	+1.611s After	-122.0 dBm	-11.00 dB	6	`c9` Penn , JLX3	LongFast	2025-11-12 01:23:10 UTC	View
P1geon (PGN1)	+12.391s After	-118.0 dBm	-16.50 dB	6	`81` Titi	LongFast	2025-11-12 01:23:21 UTC	View

15

Total Receptions

15

Unique Gateways