The announcement provided a slight upward jolt to the satellite company’s stock this morning. Dish says that it will sell $1B in senior notes — details will come later in an SEC filing. But the press release pointedly says that the cash may be used for “wireless and spectrum-related strategic transactions” in addition to the boilerplate “general corporate purposes.” Dish Chairman Charlie Ergen has been amassing spectrum rights to launch his own wireless broadband network. He has said that he’d like to team up with a someone already in the business, and made a bid for Clearwire — although the smart money is betting that the wireless venture will end up with Sprint. If that happens, Ergen has said that “we think we have other options” to build a service.