7727 External Selcall Option PS
This Option allows you interface from various radio's eg 7515, 7727 / TB & 6801
with Selcall boxes such as 8011, 8511, 8422 for example.
3digit and 4 digit selcall are NOT compatible with each other, so be careful
some 3digit box's are 4 digit with the leading digit internally preset.
with a little experience and knowledge could be interfaced with any radio.
Standard Option PS Control cable common to both 7727 and 85XX Radio's.