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The company Argent Data Systems produces ADS-SR1, čo je v princípe simplexný opakovač, hlasový maják alebo hlasová schránka. Napríklad v režime simplexného opakovača po pripojení ku rádiostanici zaznamená až 218 sekundovú reláciu, ktorú následne odvysiela. Záznam sa realizuje pri vzorkovaní 19,2kHz, čo zaručuje vysokú kvalitu záznamu.
In the voice beacon mode, it is possible to preprogram ten messages that will be broadcast at set times.
In voicemail mode, the session is stored in the memory, which is broadcast only after receiving the required DTMF code.
One cable is enough to connect the ADS-SR1 to the transceiver. Control is realized through DTMF instructions. ADS-SR1 has many interesting functions, e.g. CW ID. Manufacturer in manuals also provides a diagram. Retail price is . More on https://www.argentdata.com/catalog/product_info.php?products_id=98