Packet #3439393 Success

POSITION_APP packet from BDP1 - Portable HT v4 (BDP1) to !ffffffff

19
Total Receptions
19
Unique Gateways
2
Hop Count
30
Payload Bytes
Packet Information
Database ID: 3439393
Mesh Packet ID: 0x828ac25a
Used for correlation across gateways
Timestamp: 2025-12-11 17:29:54 UTC
From Node: BDP1 - Portable HT v4 (BDP1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 631c (GRBH)
Channel: LongFast
RSSI: -110 dBm
SNR: -20.0 dBm
Hop Info: 2/7 hops
Start: 7, Limit: 5
Relay Node: 25
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 30 bytes
Decoded: Yes
Decoded Data:
Latitude:40.776499°
Longitude:-73.780429°
Precision:14 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:30 bytes
Gateway:!db51631c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 7
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

FieldValue
gateway_id !db51631c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (30 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997288956
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 30 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -110.0 dBm
Signal strength at gateway 		int32
rx_snr -20.00 dB
Signal quality at gateway 		float
rx_time 1765474333
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 37
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765474194.677141
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: ~1500.0m 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: !db51631c
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
Signal Metrics: RSSI: -110.0 dBm
SNR: -20.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:30 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7764992, "longitude": -73.7804288, "altitude": null, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51631c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997288956, "to": 4294967295, "id": 2190131802, "rx_time": 1765474333, "rx_snr": -20.0, "rx_rssi": -110, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 37, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004e1815000006d425e9ff3a692802481c58b7017800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407764992, "longitude_i": -737804288, "time": 1765474281, "location_source": "LOC_INTERNAL", "altitude_hae": 14, "PDOP": 183, "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (30 bytes)
0d00004e1815000006d425e9ff3a692802481c58b7017800800100b8010e
Hex Analysis:
Size:30 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
Meshtastic 631c (GRBH) Primary 0.000s
Reference 		-110.0 dBm -20.00 dB 2 25 LongFast 2025-12-11 17:29:54 UTC Current
BDP3 - Wio L1 (BDP3) -51.176s
Before 		-36.0 dBm 6.25 dB 0 fc BDP1 LongFast 2025-12-11 17:29:03 UTC View
MeshM0xie (M0x) -2.155s
Before 		-27.0 dBm 6.00 dB 2 8d Mox1 LongFast 2025-12-11 17:29:52 UTC View
25 Washington Ave (25WA) -1.550s
Before 		-72.0 dBm -6.00 dB 1 c9 Penn LongFast 2025-12-11 17:29:53 UTC View
YMH 1 @ Your Mom’s House (YMH1) -1.545s
Before 		-122.0 dBm -15.75 dB 1 c9 Penn LongFast 2025-12-11 17:29:53 UTC View
Steiner Studios Tower (SST) -1.540s
Before 		-113.0 dBm -7.50 dB 1 c9 Penn , JLX3 LongFast 2025-12-11 17:29:53 UTC View
ClaremontWx.net (CmWx) -1.530s
Before 		-84.0 dBm 3.00 dB 1 c9 Penn , JLX3 LongFast 2025-12-11 17:29:53 UTC View
K2XAP / nyme.sh (XAP) -1.284s
Before 		-124.0 dBm -12.75 dB 1 c9 Penn , JLX3 LongFast 2025-12-11 17:29:53 UTC View
Izutsumi - seano@masto.nyc (izu) -1.070s
Before 		-87.0 dBm -7.25 dB 1 c9 Penn LongFast 2025-12-11 17:29:53 UTC View
Claudiopolis-440c (440c) -1.001s
Before 		-90.0 dBm -5.25 dB 1 c9 Penn , JLX3 LongFast 2025-12-11 17:29:53 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -0.486s
Before 		-103.0 dBm -1.50 dB 1 c9 Penn LongFast 2025-12-11 17:29:54 UTC View
Sunset Soda (p8p) -0.409s
Before 		-128.0 dBm -20.00 dB 1 57 CmWx LongFast 2025-12-11 17:29:54 UTC View
Mobile Fish 4 (MF4) -0.205s
Before 		-112.0 dBm -9.75 dB 2 40 LongFast 2025-12-11 17:29:54 UTC View
Fried Fish FF1 (FF1) -0.173s
Before 		-83.0 dBm -0.50 dB 2 40 BRRN LongFast 2025-12-11 17:29:54 UTC View
dkTowerBot (dkTB) +0.005s
After 		-96.0 dBm -9.00 dB 2 34 8b34 , RbHf , cf34 , 4034 , dmlt LongFast 2025-12-11 17:29:54 UTC View
Gemini (GMNI) +0.473s
After 		-123.0 dBm -10.50 dB 2 25 25WA LongFast 2025-12-11 17:29:55 UTC View
nLink-NY-Jamaica1 (NLJ1) +1.464s
After 		-105.0 dBm -6.75 dB 1 d5 ETNA LongFast 2025-12-11 17:29:56 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) +1.875s
After 		-50.0 dBm 6.25 dB 4 2b MB01 LongFast 2025-12-11 17:29:56 UTC View
Whole Foods Market UES (WFMK) +15.851s
After 		-100.0 dBm -0.75 dB 2 ca JLX4 LongFast 2025-12-11 17:30:10 UTC View
19

Total Receptions

19

Unique Gateways