how can you have a directional two pattern AM with one tower

[StemCell]

It seems WTAA is in the books for directional using the WMGM tower, I always thought you needed more than one tower for an AM to be directional...

 

[tom]

It seems WTAA is in the books for directional using the WMGM tower, I always thought you needed more than one tower for an AM to be directional...

It says: non-directional - which it is

WTAA NJ PLEASANTVILLE USA
Daytime

Licensee: ACCESS.1 NEW JERSEY LICENSE COMPANY

1490 kHz Licensed
Domestic Station Class: C Region 2 Station Class (corresponds to W. Hemisphere): C
Coordination Status: Canada: - Mexico: - Region 2: -
File No: BL-20000609ABJ Facility ID No.: 30040
CDBS Application ID No.: 503643

39° 23' 24.00" N Latitude Power: 0.4 kilowatts (kW) Daytime
74 ° 30' 45.00" W Longitude (NAD 27)

ND2 - Non-directional Antenna: Different constants day and night

 

[qtpieislit]

You can always use the toll plaza for a common point.

 

[tweaker]

Cross your eyes as you look at the tower.

 

[Deeman1710]

Watch does cell towers.... Detuning is a must by the cell tower owner

 

[Neal]

Checking the FCC database it shows WTAA as a ND1 I did not see any changes in Power/commonpoint current
or Tower resistance. both day and night on the same tower. Very interesting I think the ND2 is a Typo.