开云体育

On Thu, May 19, 2022 at 12:31 AM, Glenn wrote:

Marek
When you use the relay test program, you need to verify that the relay that is being tested is actually working. You need to use an ohm meter across the contacts to see if the changeover occurs on the relay being tested.?? What you are hearing is not the full test. You must measure it.

For example, when testing the 'inductor switching' relay, you need to check that the normally open circuit contact goes short when activated. You can use my Sch link on David's N7DDC Github web site. EDIT? My Sch shows the relays in the rest condition.
For the capacitor switching relays, the normally open circuit contact switches in the capacitor. With the ohm meter check that contact.
Cycle thru each of the capacitors and inductors using the test program to verify as above.

If you find a contact does not switch when testing, it might simply be the pin on the relay is not soldered into the hole. As you will have noted, the relay pins are quite short and don't protrude right through the PCB so its easy for the solder not to solder it in correctly.? .

Glenn
vk3pe

This is helpful. I just received one today and I was disappointed in the matching. Only a few bands get below 2:1. I'll dig in and test the relays.?