PortsDown 4 Some questions...
Posted: Mon Mar 02, 2026 2:21 pm
I have build the PortsDown 4 with a Pluto.
It's working great but.... Some questions:
- When I measure the Pluto's output on the various bands, I notice that the 2m band output is more than 3 dB lower than on the other bands. I measured this with both an SA and a PWR meter.
- After I turn off the Tx via the touchscreen, the Pluto continues transmitting for at least 3 seconds.
- When I switch bands/menus, the PortsDown logo briefly appears before switching to the other band/menu.
- I thought the latest firmware also allowed the Pluto to reach 50 MHz. But when I select that in both PortsDown and Langstone, the lowest frequency is 70 MHz. Is 50 MHz not possible, or do I need to configure it somewhere?
I'm curious if anyone else has had the same experience or what a possible solution might be.
Thanks in advance for your answers!
73's
Rob PA0RWE
It's working great but.... Some questions:
- When I measure the Pluto's output on the various bands, I notice that the 2m band output is more than 3 dB lower than on the other bands. I measured this with both an SA and a PWR meter.
- After I turn off the Tx via the touchscreen, the Pluto continues transmitting for at least 3 seconds.
- When I switch bands/menus, the PortsDown logo briefly appears before switching to the other band/menu.
- I thought the latest firmware also allowed the Pluto to reach 50 MHz. But when I select that in both PortsDown and Langstone, the lowest frequency is 70 MHz. Is 50 MHz not possible, or do I need to configure it somewhere?
I'm curious if anyone else has had the same experience or what a possible solution might be.
Thanks in advance for your answers!
73's
Rob PA0RWE