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Interrogation Site Metadata

MJ2 - Middle Fork John Day Ritter

Status:   Active - Operational
Site Type: Instream Remote Detection System  |  Organization: Oregon Dept. of Fish and Wildlife
General Operational Period: Year Round
Start Date: 11/16/2020 12:00 AM

MJ2 is located on the Middle Fork John Day River at RKM 24 at Ritter Oregon. Installed and maintained by the Oregon Dept. of Fish and Wildlife, it is on private property. This array consistes of one 45 foot antenna anchored to bedrock with stud anchors attached to one IS1001 node controlled by one Biomark MTS 1001 master controller. This system is connected to the power grid. It is downloaded manually.

Current Operations

Last File Loaded: MJ2-2022-168-P-INT.xml
Date Last File Loaded: 6/19/2022 3:42 AM
Date Last File Opened: 6/17/2022 4:22 AM
Date Last File Closed: 6/17/2022 5:22 AM
Last Observation Tag: 3DD.003D82A673
Last Observation Date: 3/26/2022 8:50 PM
Detection Summary: Last Day's Observations


Data Steward:

Derrek Faber


Coordinates: 44.890882, -119.142501  |  River Km: 351.298.052.024

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2021 1/1/2021 12:00 AM 11/5/2021 12:00 AM Start and end dates based on timer tags.
2020 11/16/2020 12:00 AM 1/1/2021 12:00 AM Site reinstalled with one antenna November 16.
2019 Site did not operate in 2019


Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

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Start Date:  4/19/2022
End Date:  ----

Site Configuration Diagrams:

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

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Equipment Code Description Start Date End Date


Event Log Summary

Event Date Event Type Comments
12/17/2021 12:00:00 PM General

Site in good working order.

11/4/2021 12:00:00 PM General

Site in good working order. Installed a cable modem and BioProbe.

10/12/2021 2:00:00 PM General

Site in good working order. 

9/16/2021 10:00:00 AM General

Site in good working order.

8/16/2021 5:00:00 PM SiteUp

Site in good working order. Downstream antenna is up and running.

6/29/2021 7:30:00 AM General
Downloaded memory. Noise reduction and increase in successful detection of virtual tags and unique tags possibly related to decreased flows. 
4/30/2021 12:00:00 PM General
Downloaded memory. Noise likely causing frequent virtual test tag failure. 
4/2/2021 1:56:00 PM General
Downloaded memory. Noise likely causing frequent virtual test tag failure. 
3/1/2021 10:30:00 AM General
Downloaded memory. VTT Fail alarm.
2/8/2021 12:30:00 PM SiteUp
Installed repaired cable and node SN 0581; site back online. Test tag 003B9CC85B detected from 4". Noise hovering around 20% with periodic spikes. Erased memory prior to departure. Controller ID: D3
2/2/2021 11:00:00 AM SiteDown
Antenna cable removed due to damage; site offline. 
1/6/2021 8:30:00 AM General
Downloaded data from 12/03/2020 - 1/6/2021. Relatively few detections may be related to noise.
12/3/2020 1:00:00 PM General Downloaded data from 11/16/2020 - 12/03/2020. "Node noise high" alarms indicate potential noise issue at site.
12/3/2020 12:00:00 PM SiteUp Attached node SN1394 to 45' PEX antenna (installed 8/21/2020) and turned on power to the site.
11/16/2020 1:00:00 PM SiteUp Attached node SN1394 to 45' PEX antenna (installed 8/21/2020) and turned on power to the site.

No Archived Event Logs