GRBAlpha - How to use digipeater or DNxD - 11. To use digipeater

When we use a digipeater, we usually set a via station. So you may think you have to set "via OM9GRB" when you use GRBAlpha digipeater. But you need not to set "via" in the case of GRBAlpha.

You only have to transmit your message like as "JI1IZR>CQ:Hello from JAPAN, my GL is PM95pi" in AX.25 format on 437.025MHz (+-doppler) while GRBAlpha is in your visible site. When GRBlpha catches your signal, it responses like as "JI1IZR>CQ,OM9GRB-7:Hello from JAPAN, my GL is PM95pi" at once after you transmission. The response is only one time.

When you want to set a destination station, for example "JA1AAA", prepare your message like as "JI1IZR>JA1AAA:Hello DE JI1IZR". In this case, GRBAlpha responses like as "JI1IZR>JA1AAA,OM9GRB-7:Hello DE JI1IZR".

Please do not try to transmit several times in a short period. Listen for a while after you transmit your message. Someone may catch your message and try to respond to you. If you cannnot get any response from GRBAlpha, I recommend you to check your settings as I mentioned in this blog before.