Frequency Floating

All bug reports here please
OBX-DXer
Posts: 2
Joined: Sat Feb 13, 2021 4:13 pm

Frequency Floating

#1

Unread post by OBX-DXer »

Since I did that 3.0.26 update my receiver won't remain stable and drifts all over the place (see attached).
Attachments
Drifting FDM-S2.png

jdow
Posts: 800
Joined: Mon Aug 10, 2020 8:17 pm

Re: Frequency Floating

#2

Unread post by jdow »

1 ppm is not much when there is no TCXO involved. If the temperature in the room housing the S2 varies, as with the heater kicking in, 1ppm is more or less normal.

{o.o}

OBX-DXer
Posts: 2
Joined: Sat Feb 13, 2021 4:13 pm

Re: Frequency Floating

#3

Unread post by OBX-DXer »

jdow wrote: Sat Feb 13, 2021 10:40 pm 1 ppm is not much when there is no TCXO involved. If the temperature in the room housing the S2 varies, as with the heater kicking in, 1ppm is more or less normal.

{o.o}
It shouldn't be floating that much. It has moved back and forth all day. This did not happen before the recent update.

jdow
Posts: 800
Joined: Mon Aug 10, 2020 8:17 pm

Re: Frequency Floating

#4

Unread post by jdow »

Then go back to an earlier copy of SDRC and recheck it. Or use Elad's SDR software and se if it happens there. There is NOTHING in an SDR that would drift like that. So it's your S2 drifting for whatever reason, most likely temperature.
{^_^}

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