<?php $channel[''] = ''; ?>
<?= $form->field($model, 'channel')->dropDownList($channel); ?>
<?= $form->field($model, 'channelfrequency')->label('Frequency'); ?>
<?= $form->field($model, 'channelwidth')->label('Width'); ?>
<?=

$form->field($model, 'channelband')->dropDownList(['' => '',
    '2ghz-b' => '2ghz-b',
    '2ghz-b/g' => '2ghz-b/g',
    '2ghz-b/g/n' => '2ghz-b/g/n',
    '2ghz-onlyg' => '2ghz-onlyg',
    '2ghz-onlyn' => '2ghz-onlyn',
    '5ghz-a' => '5ghz-a',
    '5ghz-a/n' => '5ghz-a/n',
    '5ghz-onlyn' => '5ghz-onlyn',
    '5ghz-a/n/ac' => '5ghz-a/n/ac',
    '5ghz-only-ac' => '5ghz-only-ac',
])->label('Band');
?>
<?=

$form->field($model, 'channelextension_channel')->dropDownList(['' => '',
    'Ce' => 'Ce',
    'Ceee' => 'Ceee',
    'disabled' => 'disabled',
    'eC' => 'eC',
    'eCee' => 'eCee',
    'eeCe' => 'eeCe',
    'eeeC' => 'eeeC',
])->label('Extension Channel');
?>
<?= $form->field($model, 'channeltx_power')->label('Tx Power'); ?>