4/10/2021 0 Comments Pocsag Frequencies
So also when using the whitelist delayed time syncs will be transmitted.During idle time when no QSO in digital mode is running, the hotspot will switch to the DAPNET frequency at set times to transmit pager messages.Be aware these credentials have to be requested separately The credentials for the DAPNET website cant be used to login a transmitter.
Its not clear for everyone how this works and how it can be used. Summarized this line includes the RIC the hotspot should transmit messages for. So this is a include filter for DAPNET messages: only messages with a RIC listed in the whitelist are actually transmitted. But if no RIC is entered in this field, the hotspot transmits all messages offered via the network. The question is if and how this function makes sense Why not just transmit every pager message. ![]() As this is the area where its owner moves around with the DStar or DMR radio, this will also be the area where the same owner moves around with a pager. As the coverage area of the hotspot is that small, there wont be a lot of other pager owners who have to be served by the hotspot. In that context it doesnt make sense at all to have the hotspot transmitting a lot of messages for users who wont (ever) be in its coverage area. So it makes sense to have the hotspot only transmit information for its owner. During a QSO the hotspot cant switch quickly to the POCSAG frequency to transmit a batch of messages. In those cases a DV QSO takes some more time the amount of queued pagermessages will increase rapidly if theres no filtering. As soon as the DV QSO has ended and the hotspot is available again it will start handling the backlog of DAPNET messages by transmitting them during the designated time slots. During this process oldes messages are transmitted first, but at the back side new messages are still queue via the network. Because DAPNET isnt a mission critical infrastructure, this is annoying but not dangerous. It can be rather pesky with the time synchronization: also those messages are queued, which causes a delay in time sync. So the pager start synchronizing its internal clock with old messages, so the clock will be out of sync. Most of the messages coming through the network are not addressed to the owner of the hotspot. Using the white list correctly ensures the hotspot will only transmit messages for its operator. During a DV QSO probably some DAPNET messages addressed to the hotspot owner will be queued. Pocsag Frequencies Full Of MessagesThese backlog messages will be transmitted as soon as the DV QSO has ended, but in this scenario it will be only a hand full of messages. The size of the backlog and the time to get rid of it will be far less as in the scenario without white list.
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