Hi Tom, TDAmeritrade says that RAVI's dividend is 2.59%. NASDAQ says 2.618% based on today's price and the total paid last year. Yahoo says the yield is 2.57%.
If you go to Dividend they list hundreds of positions with their dividend rate such as Guggenheim Enhanced Equity Income, (GPM), which has a 11% dividend.
My suggestion is to select one that pays dividends monthly and has options available to allow you to increase your income by selling PUTS and CALLS.
Doing this I am maintaining 75% of my cash this way, keeping roughly 25% as cash cash to allow for various trades. My income done this way is about 10.5%, net, after trading costs.