Simplex links are also a great way for a user who may not be within HT range of a local repeater, to stay connected in and around their property. Often, older used mobile or inexpensive handheld units are employed, but there are new rigs available with Echolink capability built in. Both Tone Squelch Encode and Decode are enabled (prevents non-RF signals from inadvertantly keying radio).Connected via a compatible radio-to-PC interface (same as used for transmitting digital modes) to an Internet connected computer (desktop, laptop, RaspberryPi, tablet, etc.) running Echolink (or compatible variant) software in Sysop mode.Configured in simplex mode (no +/- shift on transmit).The basic configuration consists of a radio A Simplex Link (Figure 2) is an analog VHF or UHF transceiver (HT, mobile, or base) configured to provides the Sysop and local users full RF access to the Echolink network when no repeater is available.
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