Estereo Istmo is the popular radio by the popular chain radio broadcaster for online medium in Mexico. IMER is the parent broadcaster of their popular radio as the broadcaster has got several radio station broadcasting by using network and Estereo Istmo is one of those radios which is very popular.
Estereo Istmo official website address is www.imer.mx/estereoistmo
If the Radio is extremely choppy and stops every 5 seconds, try listen to this Radio at different time.
Not all Radio Stations function for 24 hours everyday. If you can't listen to any Radio, try to listen at different time, as the Radio Station may stop during midnight according to its own country time zone.