F21K (AEC-AON)

Station Notes

ADOPTED BY AEC
None at this time

Service Plan

Site Access

Helicopter
Narrow ridge surrounded by steep terrain with only LZ to the SE of the station location. Some tall conifers near the area limit options for alternative landing locations.

Site Contact

No site contact

Site Visits

2020_09_22 Removal (Adopted by AEC)
USArray Station Removal Report
Form V1.5

STATION CODE: TA.F21K

STATION LOCALE DESCRIPTION: Alatna River, AK, USA

STATION REMOVAL LOG DATE: 20200922

STATION/SENSOR DOWN TIME (UTC): N/A
REMOVAL DESCRIPTION: Site was adopted by AEC and has not been removed.
ACTIONS TAKEN: Site was not visited during the adoption process.
LAT/LONG OF SENSOR HOLE: N/A

Top of Casing to hole bottom (indicate if sand present or evacuated): N/A
Bottom of wellcap to grade level: N/A
SENSOR ORIENTATION MEASUREMENTS:
Measured with Octans Unit: N/A
Measured with rods on pin: N/A
Casing/wellcap marked with reference orientation: N/A
SENSOR ORIENTATION: N/A
COMMENTS:
BGAN site, remote acquisition changeover to AK network.
REMOVED: N/A
DAMAGE: N/A
LEFT AT SITE: N/A
VISITORS:
Nate Murphy
NEXT VISIT: N/A
SITE STATUS: N/A
HOLE STATUS: N/A
2020_08_13 Service (J. Miner, R. Bierma)
USArray Station Service Report
Form V1.0

STATION CODE:
TA.F21K

STATION Locale Description:
Alatna River, Alaska

STATION SERVICE LOG DATE:
20200813

STATION/SENSOR DOWN TIME (UTC):
Station offline for ~15 minutes, 14:45 for station service

SERVICE DESCRIPTION:
AON battery supplement. Upgrade CC firmware and collect Baler media. Check BGAN antenna cable. Check Vaisala.
UPON ARRIVAL:
Station was in good condition. No damage to exterior parts. The BGAN signal was on narrow beam, with a signal strength of 64.7-65.1.
ACTIONS TAKEN:

Add 2 LiFePO4 batteries.
BGAN cable not replaced because a newer style cable with Times connectors was already installed and in good condition.
CC firmware upgraded to 1.20.
Baler media swap.
Verified the station configuration.

EQUIPMENT REMOVED:
NA

EQUIPMENT INSTALLED:
LiFeSO4 batteries: sn - 4107, bc - 5016086; sn - 4035, bc - 5015870

COMMENTS:
BGAN cable may need to eventually be swapped, but was in good condition. Also, this place was blueberry heaven.
Door locked and taped prior to departure.

VISITOR:
1. Miner
2. Bierma
3. Bue (Alpine Air)
ON NEXT VISIT:
n/a
CHANGES AFFECT INSTRUMENT RESPONSE: n/a
2018_07_19 Service (B. Busby, M. Enders)
2017_06_17 Service (D. Bloomquist)
2016_06_20 Install (J. Miner, D. Bloomquist)