Next satellite passCalculating pass

--:--:--

Uplink— Downlink— Mode— Tone—

AOS--:-- LOS--:-- Max elevation--°

Global status On air CALL OA4EFZ UTC --:--:-- Data Connecting

APRS ALERTSCONNECTING

CONNECTING · OA4EFZ

--:-- UTC

Códigos, abreviaturas, historia y cultura

QRT

Type: Sigla Beginner difficulty Last review: 2026-07-21

QRT indica cesar la transmisión o finalizar la operación.

Also searched as

Stop sending

APA 7 presentation

2

Autor no identificado. (s. f.). Código Q.

Stoner, Donald L.. (1991). The Ham Radio Handbook.