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Tx out of band ???

Posted: Fri Apr 26, 2024 5:01 pm
by OZ1CT-Ben
I am looking for a way to use Thetis to tx on 40mhz / 8m Band !

when I select "Extended" mode and Denmark in region and try to tx "out of band" I se the PA-settings the menue "gray out" and it do not slect any band, as I hope to se 6m band select as ???

is there a way to get thetis to tx out of band and also select the 6m BPF+PA

Ben

Re: Tx out of band ???

Posted: Fri Apr 26, 2024 6:55 pm
by Tony EI7BMB
Try region 1 instead of Denmark perhaps ?

Re: Tx out of band ???

Posted: Fri Apr 26, 2024 7:20 pm
by OZ1CT-Ben
sorry but it do not worke !...... Region1 or denmark or other country...samme result :-(

I have try to put a wattmeter to the output of the motherboard and here I can se RF comming out but not after the BPF/PA...
but why the "PA-setings menu" gray out when I try to tx as I was hoping that it would select the 6m filter

Maybe there is a way to "Edit" the bandplan for 6m so it start at 40mhz and stop as now at 54mhz ????

Re: Tx out of band ???

Posted: Sat Apr 27, 2024 10:34 am
by w-u-2-o
I took a look at the problem this morning and it definitely appears to be a bug. Selecting "extended" allows Thetis to go into transmit mode but no RF power is produced. This is in contrast to the behavior when extended mode is not selected whereby Thetis will not even go into transmit mode and an error box pops up.

I will report this bug in GitHub.

As for the 6M LNA being activated, this should not be a problem. In Settings > General > Ant/Filters > BPF1/LPF you will see that the software defaults to the 6M condition for any frequency between 35 and 61.44MHz. Please carefully note and understand that these values represent frequency ranges for which the software will command the hardware to select one of the available fixed frequency BPFs (preselectors). Changing these values does not cause the filters to change their parameters.

Re: Tx out of band ???

Posted: Sat Apr 27, 2024 11:16 am
by w-u-2-o
Editing the band plan might be a work-around. More info here: viewtopic.php?f=9&t=5021&p=29026

Re: Tx out of band ???

Posted: Sat Apr 27, 2024 2:12 pm
by OZ1CT-Ben
I downloaded K9dur BandText editor and made the change 40-50mhz as 8M sub-Band
and save it...started Thetis up and imported the Database.xml file.... but it only change the Band text, so I have to
dig in to the Database.xml file whit another program

Ben