Skip to main content Skip to footer and contact information
Go to the Federal Communications Commission homepage at www.fcc.gov

Licensing and Management System

Facility ID:34413KHBB-LD

Channel:
21
Station Type:
Main
Community:
HELENA, MT
« Back To Search Results

Application Technical History

Application
Submit Date
BLDTL-20081126ADG License To Cover Granted, Active Status Date: 12/02/2008 11/26/2008
BDFCDTL-20081121AKG Digital Flash Cut Granted, In-Active Status Date: 11/25/2008 11/21/2008
BDFCDTL-20060331BNR Digital Flash Cut Granted, In-Active Status Date: 08/09/2006 03/31/2006
BLTT-19930108JL License To Cover Granted, In-Active Status Date: 02/25/1993 01/08/1993
BPTT-19920213ER Major Modification Granted, In-Active Status Date: 07/07/1992 02/13/1992
BLTTV-19911108ID License To Cover Granted, In-Active Status Date: 01/29/1992 11/08/1991
BPTTV-19910424JI Minor Modification Granted, In-Active Status Date: 08/26/1991 04/24/1991
BLTTV-19890110IH License To Cover Granted, In-Active Status Date: 02/28/1989 01/10/1989
BPTTV-19880405IB Minor Modification Granted, In-Active Status Date: 07/29/1988 04/05/1988

Contour Map

Application

File Number:
BDFCDTL-20081121AKG
Service:
Low Power Digital TV
Channel:
21
Class:
Application Status:
Granted
Authorization Type:
CP
Submit Date:
11/21/2008

LPD Antenna

Site 1

NAD83 Coordinates:
46 46' 11.7" N 112 1' 24.9" W
Make Mode:
SCA 4DR-16-2HW
Rotation:
180
Antenna Type:
Directional Custom
Antenna Polarization:
ERP
5 kW
RCAMSL:
1530 meters
HAAT:
RCAGL:
30 meters

Directional Antenna Relative Field Values (Pre-rotated Pattern)

Rad Field ERP Rad Field ERP Rad Field ERP Rad Field ERP
0 1.0 5.0 90 0.715 2.55612 180 0.02 0.002 270 0.71 2.60281
10 0.945 4.46512 100 0.58 1.682 190 0.02 0.002 280 0.825 3.47778
20 0.83 3.4445 110 0.41 0.8405 200 0.02 0.002 290 0.915 4.2412
30 0.795 3.16013 120 0.135 0.09113 210 0.02 0.002 300 0.975 4.78801
40 0.925 4.27812 130 0.02 0.002 220 0.02 0.002 310 0.983 4.74533
50 0.995 4.95012 140 0.02 0.002 230 0.02 0.0048 320 0.895 3.9064
60 0.975 4.75312 150 0.02 0.002 240 0.13 0.12246 330 0.784 3.10708
70 0.92 4.232 160 0.02 0.002 250 0.395 0.84666 340 0.827 3.52632
80 0.835 3.48612 170 0.02 0.002 260 0.56 1.65313 350 0.955 4.6032

Additional Azimuths

Rad Field ERP
53 1.0 5.0
307 1.0 4.94349