Packet #2883784 Success

POSITION_APP packet from JLX3 - Kew Gardens Solar (JLX3) to !ffffffff

13
Total Receptions
13
Unique Gateways
5
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2883784
Mesh Packet ID: 0x8d50b8eb
Used for correlation across gateways
Timestamp: 2025-11-29 07:14:10 UTC
From Node: JLX3 - Kew Gardens Solar (JLX3)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: K2XAP / nyme.sh (XAP)
Channel: LongFast
RSSI: -91 dBm
SNR: 5.75 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 78 SCP2
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:40.717517°
Longitude:-73.826304°
Precision:15 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:!8b1f99e7
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:5 / 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 !8b1f99e7
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 3881604553
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 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -91.0 dBm
Signal strength at gateway 		int32
rx_snr 5.75 dB
Signal quality at gateway 		float
rx_time 1764400563
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 120
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764400450.708125
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: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !8b1f99e7
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -91.0 dBm
SNR: 5.75 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": 40.7175168, "longitude": -73.826304, "altitude": 0, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!8b1f99e7", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3881604553, "to": 4294967295, "id": 2370877675, "rx_time": 1764400563, "rx_snr": 5.75, "rx_rssi": -91, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004518150000ffd3180025219dea6828017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407175168, "longitude_i": -738263040, "altitude": 0, "time": 1760206113, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d00004518150000ffd3180025219dea6828017800800100b8010f
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
K2XAP / nyme.sh (XAP) Primary 0.000s
Reference 		-91.0 dBm 5.75 dB 5 78 SCP2 LongFast 2025-11-29 07:14:10 UTC Current
NHaledon - Dorothy (NHDO) -58.723s
Before 		-117.0 dBm -9.00 dB 1 92 9e92 LongFast 2025-11-29 07:13:11 UTC View
Steiner Studios Tower (SST) -44.179s
Before 		-114.0 dBm -10.25 dB 3 1e 351e LongFast 2025-11-29 07:13:26 UTC View
Meshtastic 1ca3 (1ca3) -43.888s
Before 		-119.0 dBm -10.75 dB 3 e0 Lv4 , 88e0 LongFast 2025-11-29 07:13:26 UTC View
DRP1 Chelsea (DRP1) -42.321s
Before 		-106.0 dBm -4.75 dB 4 80 NLmH , p@bp , BR03 , LOD LongFast 2025-11-29 07:13:28 UTC View
Fried Fish 1 | nyme.sh (FF1) -41.931s
Before 		-91.0 dBm 1.00 dB 4 b8 🫠 LongFast 2025-11-29 07:13:28 UTC View
Meshtastic 631c (631c) -41.613s
Before 		-110.0 dBm -19.25 dB 4 b8 LongFast 2025-11-29 07:13:29 UTC View
Claudiopolis-440c (440c) -41.601s
Before 		-92.0 dBm -7.75 dB 4 28 b028 , 8b28 LongFast 2025-11-29 07:13:29 UTC View
dkTowerBot (dkTB) -40.622s
Before 		-110.0 dBm -20.00 dB 4 a8 24a8 , REX LongFast 2025-11-29 07:13:30 UTC View
Gowanus Soda (p1p) -39.595s
Before 		-104.0 dBm 0.25 dB 5 1c 631c LongFast 2025-11-29 07:13:31 UTC View
YMH 1 @ Your Mom’s House (YMH1) -21.290s
Before 		-120.0 dBm -11.25 dB 3 74 LongFast 2025-11-29 07:13:49 UTC View
ClaremontWx.net (CmWx) -1.779s
Before 		-96.0 dBm -15.25 dB 4 96 LongFast 2025-11-29 07:14:08 UTC View
Sunset Soda (p8p) +0.800s
After 		-120.0 dBm -8.50 dB 5 57 CmWx LongFast 2025-11-29 07:14:11 UTC View
13

Total Receptions

13

Unique Gateways