Packet #1892928 Success

POSITION_APP packet from JLX4 - Astoria Solar (JLX4) to !ffffffff

13
Total Receptions
11
Unique Gateways
0
Hop Count
22
Payload Bytes
Packet Information
Database ID: 1892928
Mesh Packet ID: 0x5a873a4d
Used for correlation across gateways
Timestamp: 2025-11-11 15:43:36 UTC
From Node: JLX4 - Astoria Solar (JLX4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Lv4 - Heltec V4 Green (Lv4)
Channel: LongFast
RSSI: Unknown
SNR: 5.75 dBm
Hop Info: 0/5 hops
Start: 5, Limit: 5
Relay Node: ca OC1 , JLX4
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:40.747202°
Longitude:-73.849545°
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:!b2a78ce0
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 5
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 !b2a78ce0
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

FieldValueType
from 2369070026
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 5
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr 5.75 dB
Signal quality at gateway 		float
rx_time 1762875891
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 202
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1762875816.1116793
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a78ce0
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: SNR: 5.75 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": 40.7472016, "longitude": -73.8495453, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a78ce0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2369070026, "to": 4294967295, "id": 1518811725, "rx_time": 1762875891, "rx_snr": 5.75, "rx_rssi": 0, "hop_limit": 5, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 202, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d90874918152374fbd3180028017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407472016, "longitude_i": -738495453, "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)
0d90874918152374fbd3180028017800800100b80120
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
Lv4 - Heltec V4 Green (Lv4) Primary 0.000s
Reference 		Unknown 5.75 dB 0 ca OC1 , JLX4 LongFast 2025-11-11 15:43:36 UTC Current
dkTowerBot (dkTB) +2313.723s
After 		-101.0 dBm -10.50 dB 3 4c JLY3 , SST LongFast 2025-11-11 16:22:09 UTC View
Meshtastic 631c (631c) +2313.920s
After 		-108.0 dBm -17.50 dB 3 3d PDD0 , P1NY LongFast 2025-11-11 16:22:10 UTC View
bit0fun | nyme.sh (🟠) +2315.408s
After 		-109.0 dBm -4.75 dB 4 1c 631c LongFast 2025-11-11 16:22:11 UTC View
aurelia (🧚) +2317.976s
After 		-108.0 dBm -9.25 dB 4 56 JLX6 LongFast 2025-11-11 16:22:14 UTC View
YMH 2 @ Your Mom’s House (YMH2) +2320.078s
After 		-68.0 dBm -6.75 dB 5 90 NLG1 LongFast 2025-11-11 16:22:16 UTC View
DRP1 Chelsea (DRP1) +2326.221s
After 		-114.0 dBm -13.50 dB 5 - LongFast 2025-11-11 16:22:22 UTC View
Steiner Studios Tower (SST) +2390.573s
After 		-117.0 dBm -11.25 dB 4 1e 351e LongFast 2025-11-11 16:23:26 UTC View
🐎📨 mobile (📨) +2393.361s
After 		-116.0 dBm -9.25 dB 5 63 LongFast 2025-11-11 16:23:29 UTC View
P2NY Pony Express Solar (P2NY) +2970.419s
After 		-113.0 dBm -10.50 dB 5 d5 🟠 LongFast 2025-11-11 16:33:06 UTC View
aurelia (🧚) +2971.487s
After 		-113.0 dBm -3.50 dB 5 d5 ETNA LongFast 2025-11-11 16:33:07 UTC View
DRP0 Astoria (DRP0) +3195.804s
After 		-95.0 dBm 2.25 dB 4 b2 😴 , CBZ1 LongFast 2025-11-11 16:36:51 UTC View
bit0fun | nyme.sh (🟠) +3870.789s
After 		-111.0 dBm -14.50 dB 5 88 grns , P3NY LongFast 2025-11-11 16:48:06 UTC View
13

Total Receptions

11

Unique Gateways