855 def b_only_params(channel="1", ssid=None, country=None):  argument
860     if country:
861         params["country_code"] = country
864 def g_only_params(channel="1", ssid=None, country=None):  argument
869     if country:
870         params["country_code"] = country
873 def a_only_params(channel="36", ssid=None, country=None):  argument
878     if country:
879         params["country_code"] = country
882 def ht20_params(channel="1", ssid=None, country=None):  argument
890     if country:
891         params["country_code"] = country
894 def ht40_plus_params(channel="1", ssid=None, country=None):  argument
895     params = ht20_params(channel, ssid, country)
899 def ht40_minus_params(channel="1", ssid=None, country=None):  argument
900     params = ht20_params(channel, ssid, country)