Packet #4032052 Success

POSITION_APP packet from Izutsumi - seano@masto.nyc (izu) to !ffffffff

17
Total Receptions
17
Unique Gateways
1
Hop Count
22
Payload Bytes
Packet Information
Database ID: 4032052
Mesh Packet ID: 0x0898ab02
Used for correlation across gateways
Timestamp: 2025-12-24 10:47:58 UTC
From Node: Izutsumi - seano@masto.nyc (izu)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: SACKMESHv4 l https://nyme.sh (SMv4)
Channel: LongFast
RSSI: -106 dBm
SNR: -17.25 dBm
Hop Info: 1/4 hops
Start: 4, Limit: 3
Relay Node: c9 Penn
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:40.727583°
Longitude:-73.998044°
Altitude:47 m
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:!b2a706e4
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:1 / 4
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 !b2a706e4
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 3267998965
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 3
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -106.0 dBm
Signal strength at gateway 		int32
rx_snr -17.25 dB
Signal quality at gateway 		float
rx_time 1766573446
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 1766573278.9323556
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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a706e4
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -106.0 dBm
SNR: -17.25 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": 40.727583, "longitude": -73.9980439, "altitude": 47, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a706e4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3267998965, "to": 4294967295, "id": 144222978, "rx_time": 1766573446, "rx_snr": -17.25, "rx_rssi": -106, "hop_limit": 3, "hop_start": 4, "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": "0d368946181569cbe4d3182f256fc54b692801b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407275830, "longitude_i": -739980439, "altitude": 47, "time": 1766573423, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d368946181569cbe4d3182f256fc54b692801b80120
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
SACKMESHv4 l https://nyme.sh (SMv4) Primary 0.000s
Reference 		-106.0 dBm -17.25 dB 1 c9 Penn LongFast 2025-12-24 10:47:58 UTC Current
Izutsumi - seano@masto.nyc (izu) -22.538s
Before 		Unknown Unknown 0 f5 izu LongFast 2025-12-24 10:47:36 UTC View
ClaremontWx.net (CmWx) -3.256s
Before 		-101.0 dBm -10.00 dB 1 78 md LongFast 2025-12-24 10:47:55 UTC View
K2XAP R1int (XAPM) -2.057s
Before 		-59.0 dBm 5.75 dB 2 57 CmWx LongFast 2025-12-24 10:47:56 UTC View
K2XAP / nyme.sh (XAP) -2.013s
Before 		-39.0 dBm 5.75 dB 2 57 CmWx LongFast 2025-12-24 10:47:56 UTC View
nLink-NY-Jamaica1 (NLJ1) -1.771s
Before 		-91.0 dBm 3.00 dB 2 88 grns , 2f88 LongFast 2025-12-24 10:47:57 UTC View
North Haledon - Dorothy (NHDO) -0.756s
Before 		-95.0 dBm -13.00 dB 2 4b LongFast 2025-12-24 10:47:58 UTC View
25 Washington Ave (25WA) -0.016s
Before 		-78.0 dBm -5.75 dB 1 c9 Penn LongFast 2025-12-24 10:47:58 UTC View
Steiner Studios Tower (SST) -0.005s
Before 		-121.0 dBm -13.75 dB 1 c9 Penn , JLX3 LongFast 2025-12-24 10:47:58 UTC View
dkTowerBot (dkTB) +0.814s
After 		-97.0 dBm -8.00 dB 1 34 8b34 , cf34 , dmlt LongFast 2025-12-24 10:47:59 UTC View
YMH 1 @ Your Mom’s House (YMH1) +0.936s
After 		-126.0 dBm -17.25 dB 3 60 LongFast 2025-12-24 10:47:59 UTC View
Fried Fish FF1 (FF1) +1.078s
After 		-85.0 dBm -6.50 dB 3 0f 68SD LongFast 2025-12-24 10:48:00 UTC View
KageNet Decker (D3KR) +4.008s
After 		-119.0 dBm -9.25 dB 3 7b 4b7b LongFast 2025-12-24 10:48:02 UTC View
CBZ0 🚕 mobile (CBZ0) +4.037s
After 		-124.0 dBm -14.75 dB 3 7b 4b7b LongFast 2025-12-24 10:48:02 UTC View
Cams Tbeam S (CAMR) +6.322s
After 		-124.0 dBm -15.00 dB 4 74 ec74 LongFast 2025-12-24 10:48:05 UTC View
Meshtastic 631c (GRBH) +7.913s
After 		-106.0 dBm -17.25 dB 2 dc p4p LongFast 2025-12-24 10:48:06 UTC View
Whole Foods Market UES (WFMK) +19.896s
After 		-109.0 dBm -8.00 dB 3 66 JLY2 LongFast 2025-12-24 10:48:18 UTC View
17

Total Receptions

17

Unique Gateways