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XPR MDC on simplex

Thread starter edwardcallow
Start date Nov 7, 2024
Tags

mdc

edwardcallow

Newbie

Nov 7, 2024

Anyone know why a DP4801e or DP3661e wouldn’t be able to acknowledge an MDC emergency alarm from a DP3441e in a simplex environment?
It’s also not able to get responses for radio checks and while a remote monitor will happen, the display shows the loading sprite and keeps retrying, thinking it’s failed.

The DP4801e receives the alarm and shows the ID and channel while sounding an alert but the DP3441e continues retrying.

DP4801 has the following all enabled for the channel:
— emergency alarm indication
— emergency alarm ack
— emergency call indication
— emergency call decode tone

For the sending radio MDC emergency system:
— tried both regular and silent w/ voice alarm types
— can’t see anything in the 'signalling systems' menu

Both have:
— unique primary IDs
— the same group ID
— same emergency system config
— same CTCSS tones

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