Almost All The High Yield Rates Are ONLY Available With Active Checking Account

I opened an account with them but the rate keep dropping very fast.  It's not good for those who don't use debt card for more than 10 times per month. The rate I got from them for YES money market account are as follows(not list on their website): 

$50,000 to $100,000+ --> 1.00%;   $20,000 to $49,999.99 --> 0.75%;  

$10,000 to $19,999.99 --> 0.50%; $1,000 to $9,999.99 --> 0.25% 

The rate list on their website: Deposit Rates | Connexus Credit Union Online | Wausau | Wisconsin - WI