FRS Holland 6284 Khz FRS Holland is on 6284 Khz at 1755 Utc with SINPO 34433 at SDR England. Also heard at SDR Twente SINPO 34333 at 1825 Utc: Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Related