Packet #1891539 Success

POSITION_APP packet from !b1b7dfe8 to !ffffffff

17
Total Receptions
17
Unique Gateways
6
Hop Count
27
Payload Bytes
Packet Information
Database ID: 1891539
Mesh Packet ID: 0x7e6b9653
Used for correlation across gateways
Timestamp: 2025-11-11 15:10:50 UTC
From Node: !b1b7dfe8 (dfe8)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Fried Fish 1 | nyme.sh (FF1)
Channel: LongFast
RSSI: -84 dBm
SNR: -14.25 dBm
Hop Info: 6/6 hops
Start: 6, Limit: 0
Relay Node: 40 BRRN
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: 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:!b2a7bd74
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:6 / 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

FieldValue
gateway_id !b2a7bd74
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

FieldValueType
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 Not set uint32
hop_start 6
Initial hop limit 		uint32
hops_taken 6
Calculated: hop_start - hop_limit 		derived
rx_rssi -84.0 dBm
Signal strength at gateway 		int32
rx_snr -14.25 dB
Signal quality at gateway 		float
rx_time 1762873927
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 64
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1762873850.8088062
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 (6 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: -84.0 dBm
SNR: -14.25 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": "!b2a7bd74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2981617640, "to": 4294967295, "id": 2120980051, "rx_time": 1762873927, "rx_snr": -14.25, "rx_rssi": -84, "hop_limit": 0, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 64, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0de979481815fc9efbd31800257318136928017800800100b80120", "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": 1762859123, "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)
0de979481815fc9efbd31800257318136928017800800100b80120
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
Fried Fish 1 | nyme.sh (FF1) Primary 0.000s
Reference 		-84.0 dBm -14.25 dB 6 40 BRRN LongFast 2025-11-11 15:10:50 UTC Current
Lv4 - Heltec V4 Green (Lv4) -378.171s
Before 		-15.0 dBm 6.00 dB 0 e8 dfe8 LongFast 2025-11-11 15:04:32 UTC View
aurelia (🧚) -26.032s
Before 		-112.0 dBm -4.75 dB 2 d5 ETNA LongFast 2025-11-11 15:10:24 UTC View
dkTowerBot (dkTB) -24.682s
Before 		-98.0 dBm -10.75 dB 3 4c JLY3 , SST LongFast 2025-11-11 15:10:26 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) -22.936s
Before 		-50.0 dBm 6.50 dB 3 2b MB01 LongFast 2025-11-11 15:10:27 UTC View
Steiner Studios Tower (SST) -21.909s
Before 		-118.0 dBm -12.00 dB 3 1e 351e LongFast 2025-11-11 15:10:28 UTC View
Meshtastic e41a (GRBT) -21.731s
Before 		-122.0 dBm -16.00 dB 3 1e GHFC LongFast 2025-11-11 15:10:29 UTC View
YMH 2 @ Your Mom’s House (YMH2) -13.110s
Before 		-69.0 dBm -7.50 dB 4 90 NLG1 LongFast 2025-11-11 15:10:37 UTC View
BeMoreSQUIP 1 (VPP1) -12.815s
Before 		-82.0 dBm 6.00 dB 5 09 LongFast 2025-11-11 15:10:37 UTC View
nLink-NY-Jamaica1 (NLJ1) -12.528s
Before 		-98.0 dBm -8.75 dB 2 d5 ETNA LongFast 2025-11-11 15:10:38 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -9.575s
Before 		-111.0 dBm -8.75 dB 3 30 ed30 , 3930 LongFast 2025-11-11 15:10:41 UTC View
K2CAT/Home (K2CT) +6.128s
After 		-108.0 dBm 1.00 dB 6 2f KCAT LongFast 2025-11-11 15:10:56 UTC View
bit0fun | nyme.sh (🟠) +34.844s
After 		-111.0 dBm -15.50 dB 4 81 9881 , Titi LongFast 2025-11-11 15:11:25 UTC View
ClaremontWx.net (CmWx) +36.954s
After 		-90.0 dBm -7.00 dB 5 - LongFast 2025-11-11 15:11:27 UTC View
Meshtastic 631c (631c) +38.815s
After 		-109.0 dBm -19.25 dB 5 2d 🪟 LongFast 2025-11-11 15:11:29 UTC View
Meshtastic b808 (b808) +335.037s
After 		-84.0 dBm 5.50 dB 2 d5 ETNA LongFast 2025-11-11 15:16:25 UTC View
K2XAP / nyme.sh (XAP) +510.434s
After 		-36.0 dBm 6.00 dB 6 57 CmWx LongFast 2025-11-11 15:19:21 UTC View
17

Total Receptions

17

Unique Gateways