Packet #2946831 Success

POSITION_APP packet from !b2a73e40 to !ffffffff

18
Total Receptions
18
Unique Gateways
5
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2946831
Mesh Packet ID: 0x7e2943d7
Used for correlation across gateways
Timestamp: 2025-11-30 13:48:53 UTC
From Node: !b2a73e40 (3e40)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: K2XAP / nyme.sh (XAP)
Channel: LongFast
RSSI: -121 dBm
SNR: -11.0 dBm
Hop Info: 5/7 hops
Start: 7, Limit: 2
Relay Node: c9 Penn , JLX3
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:40.868250°
Longitude:-74.108109°
Altitude:28 m
Precision:13 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 / 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 !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 2997304896
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 2
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -121.0 dBm
Signal strength at gateway 		int32
rx_snr -11.00 dB
Signal quality at gateway 		float
rx_time 1764510646
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 201
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764510533.0139427
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: ~2900.0m 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: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -121.0 dBm
SNR: -11.00 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": 40.8682496, "longitude": -74.1081088, "altitude": 28, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!8b1f99e7", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997304896, "to": 4294967295, "id": 2116633559, "rx_time": 1764510646, "rx_snr": -11.0, "rx_rssi": -121, "hop_limit": 2, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 201, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00005c18150000d4d3181c25a24b2c6928017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 408682496, "longitude_i": -741081088, "altitude": 28, "time": 1764510626, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d00005c18150000d4d3181c25a24b2c6928017800800100b8010d
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 		-121.0 dBm -11.00 dB 5 c9 Penn , JLX3 LongFast 2025-11-30 13:48:53 UTC Current
NW Bergen (3fc4) -16.014s
Before 		-103.0 dBm -6.00 dB 2 81 RAK3 LongFast 2025-11-30 13:48:36 UTC View
Claudiopolis-440c (440c) -5.162s
Before 		-95.0 dBm -10.50 dB 4 28 b028 , 8b28 LongFast 2025-11-30 13:48:47 UTC View
DRP1 Chelsea (DRP1) -4.207s
Before 		-110.0 dBm -8.00 dB 4 ec AT01 , 1MW1 LongFast 2025-11-30 13:48:48 UTC View
BDP3 - Wio L1 (BDP3) -1.738s
Before 		-109.0 dBm 1.25 dB 4 d5 ETNA LongFast 2025-11-30 13:48:51 UTC View
NHaledon - Dorothy (NHDO) -1.344s
Before 		-121.0 dBm -15.75 dB 5 1e 351e LongFast 2025-11-30 13:48:51 UTC View
Steiner Studios Tower (SST) -1.329s
Before 		-116.0 dBm -12.25 dB 5 1e 351e LongFast 2025-11-30 13:48:51 UTC View
ClaremontWx.net (CmWx) -0.366s
Before 		-81.0 dBm 3.00 dB 5 c9 Penn LongFast 2025-11-30 13:48:52 UTC View
JankStation (JKST) -0.073s
Before 		-123.0 dBm -18.75 dB 5 c9 Penn LongFast 2025-11-30 13:48:52 UTC View
Sunset Soda (p8p) -0.054s
Before 		-128.0 dBm -18.00 dB 5 c9 Penn LongFast 2025-11-30 13:48:52 UTC View
Lv4 - Heltec V4 Green (Lv4) +0.622s
After 		Unknown 6.50 dB 5 e5 JR1N LongFast 2025-11-30 13:48:53 UTC View
Fried Fish 1 | nyme.sh (FF1) +1.380s
After 		-88.0 dBm -1.75 dB 6 0f 68SD LongFast 2025-11-30 13:48:54 UTC View
Meshtastic 631c (631c) +4.724s
After 		-100.0 dBm -9.75 dB 6 10 WA2J , 8a10 LongFast 2025-11-30 13:48:57 UTC View
Meshtastic 1ca3 (1ca3) +4.786s
After 		-122.0 dBm -15.50 dB 6 31 a031 LongFast 2025-11-30 13:48:57 UTC View
Gowanus Soda (p1p) +4.791s
After 		-116.0 dBm -13.25 dB 6 31 a031 , ν LongFast 2025-11-30 13:48:57 UTC View
MeshM0xie (M0x) +7.047s
After 		-102.0 dBm -6.00 dB 6 88 P3NY LongFast 2025-11-30 13:49:00 UTC View
nLink-NY-Jamaica1 (NLJ1) +11.893s
After 		-89.0 dBm 2.00 dB 6 88 grns , 2f88 , P3NY LongFast 2025-11-30 13:49:04 UTC View
dkTowerBot (dkTB) +148.528s
After 		-109.0 dBm -20.50 dB 5 66 JLY2 LongFast 2025-11-30 13:51:21 UTC View
18

Total Receptions

18

Unique Gateways