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.