Packet #4027775 Success

POSITION_APP packet from Carnegie Hall (CH) to !8140e9ec

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	4027775
Mesh Packet ID:	`0x218dca87` Used for correlation across gateways
Timestamp:	2025-12-24 08:21:37 UTC
From Node:	Carnegie Hall (CH)
To Node:	!8140e9ec (e9ec)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	North Haledon - Dorothy (NHDO)
Channel:	LongFast
RSSI:	-99 dBm
SNR:	-7.5 dBm
Hop Info:	2/4 hops Start: 4, Limit: 2
Relay Node:	`ec` Last byte of the last hop that relayed this packet

Payload Data

Protocol: POSITION_APP

Size: 22 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.765504°
Longitude:	-73.980057°
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:	!eb90f7e6
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 4

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!eb90f7e6` 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`	`163247512` Source node ID	uint32
`to`	`2168515052` Target node ID	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-99.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1766564665` 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`	`236` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766564497.2169237` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!eb90f7e6`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -99.0 dBm SNR: -7.50 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": 40.7655042, "longitude": -73.9800571, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!eb90f7e6", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 163247512, "to": 2168515052, "id": 562940551, "rx_time": 1766564665, "rx_snr": -7.5, "rx_rssi": -99, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 236, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d82524c1815058ae7d3180028017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407655042, "longitude_i": -739800571, "altitude": 0, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (22 bytes)

0d82524c1815058ae7d3180028017800800100b80120

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
North Haledon - Dorothy (NHDO) Primary	0.000s Reference	-99.0 dBm	-7.50 dB	2	`ec`	LongFast	2025-12-24 08:21:37 UTC	Current
YMH 1 @ Your Mom’s House (YMH1)	-4.555s Before	-90.0 dBm	4.25 dB	1	`e8` LIC1	LongFast	2025-12-24 08:21:32 UTC	View
ClaremontWx.net (CmWx)	-2.503s Before	-99.0 dBm	-9.00 dB	2	`0c` MG , 440c	LongFast	2025-12-24 08:21:34 UTC	View
K2XAP / nyme.sh (XAP)	-2.084s Before	-125.0 dBm	-17.50 dB	2	`0c` 440c	LongFast	2025-12-24 08:21:35 UTC	View
25 Washington Ave (25WA)	-1.432s Before	-79.0 dBm	-4.75 dB	1	`c9` Penn	LongFast	2025-12-24 08:21:35 UTC	View
Steiner Studios Tower (SST)	-1.396s Before	-120.0 dBm	-13.50 dB	1	`c9` Penn , JLX3	LongFast	2025-12-24 08:21:35 UTC	View
1 MW 1 West Side \| https://nyme.sh (1MW1)	-1.335s Before	-113.0 dBm	-9.00 dB	2	`6f` fc6f	LongFast	2025-12-24 08:21:35 UTC	View
Izutsumi - seano@masto.nyc (izu)	-1.227s Before	-89.0 dBm	Unknown	1	`c9` Penn , JLX3	LongFast	2025-12-24 08:21:35 UTC	View
K2XAP R1int (XAPM)	+0.322s After	-59.0 dBm	6.00 dB	3	`57` CmWx	LongFast	2025-12-24 08:21:37 UTC	View
Meshtastic 631c (GRBH)	+3.151s After	-103.0 dBm	-13.25 dB	3	`2d` 🪟	LongFast	2025-12-24 08:21:40 UTC	View
Fried Fish FF1 (FF1)	+4.263s After	-90.0 dBm	-2.50 dB	3	`b8` 🫠	LongFast	2025-12-24 08:21:41 UTC	View
dkTowerBot (dkTB)	+4.760s After	-97.0 dBm	-7.50 dB	2	`34` 8b34 , cf34 , dmlt	LongFast	2025-12-24 08:21:41 UTC	View
nLink-NY-Jamaica1 (NLJ1)	+30.167s After	-92.0 dBm	-0.25 dB	2	`88` grns , 2f88	LongFast	2025-12-24 08:22:07 UTC	View
Whole Foods Market UES (WFMK)	+353.505s After	-112.0 dBm	-12.50 dB	3	`66` JLY2	LongFast	2025-12-24 08:27:30 UTC	View

14

Total Receptions

14

Unique Gateways