can't transmit split

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  • Problem
  • Updated 4 years ago
  • Solved
  • (Edited)
I've operated rtty split quite a few time previously but right now...I'm doing something wrong
I was down on 12 meter rtty.
Saw a station I still needed, he was operating split up 5
I enabled a new Slice
Made sure the TX was red on slice B
Made sure it was DIGL
Made sure DAX Channel 2 was selected
Made sure the TX button was NOT red on slice A and was Red on Slice B
Made sure the DAX Control Panel indicated Slice B had a Red TX indicator
(This process must be made automatic, it takes too long to do all these changes and double checks)
Made sure Slice B was up 5.
Made sure RF Power was set correctly.
Slice A was set to DAX channel 1
Slice B was set to DAX channel 2 (again DAX Panel showed Slice 2(blue) and Red TX
RF Power Slider at half way
But no power output

Click the Tune or MOX button will put the rig into xmit mode, Dax Control Panel Slice B stops showing a received signal but does not indicate and signal output.

I obviously have missed set something but my old brain can't seem to find it.
(I took a screen shot if anyone wants to take a look and see if they can spot my error)

Oh and one other issue, I COULD NOT USE XIT  either. (I was desperate)

PS, I obviously did NOT work that station I needed on 12. :-((
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Bill-W9OL

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  • embarrisingly stupid

Posted 4 years ago

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Bill-W9OL

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After a reboot, nothing changed other than the opportunity to use XIT. After the reboot, XIT returned.

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Greg

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did you tell the software you are using for rtty to use the other dax sound device for transmit that you selected?
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Dave -- W7IWW

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I work digital split (RTTY & PSK31) with ONE slice exclusively , and activate "X/RIT." Set the X/RIT split frequency, e.g., "UP 2", to 2000. The TX just needs to be activated in that single slice and DAX set correctly. The panadapter will show a blue bandpass (Receive) and red bandpass (Transmit). Good luck on the next try!!
Dave W7IWW
(Edited)
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Ken - NM9P, Elmer

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Yep, that's the way I do it!
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Bill-W9OL

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Bingo, totally forgot about that.
My old brain was stuck in the old way of using a actual sound card....forgot that.
Darn that's clumsy to have to take all that time to go and switch sound devices.

I got to find a better way of selecting which DAX channel if I'm simplex transmit or split transmit.
As you can only transmit on one slice at a time, not sure why the restriction that more than one slice must use a different sound card. Guessing it's the duplex situation.

The RIT-XIT is a possibility but may be tough to find the station or find the DX stations  pattern.
I must admit I haven't tried that so not sure....

What RTTY program do Flex users prefer so that I do not have to go and juggle the sound card selections when switching from simplex to split operation?
Is there a digital mode program that an old guy  can learn fast enough to use? LOL

Always open to suggestions...if you can explain it simply enough to penetrate this skull.

Thanks for reading
(Edited)
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Dave -- W7IWW

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1. I use HRD DM 780 v. 6.2 and it works well for me.

2. Simplex or split can be run from a single slice. No changes required. If simplex, then no XIT/RIT. If split, just activate and set XIT/RIT. Nothing else needs to happen. DAX Channel stays the same in simplex and split mode with the selected single slice. Changing soundcard/DAX or software settings for operating between simplex and split is not necessary. That relationship once set does not require any reset. Easy, huh?

3. In my experience a split operator does not move frequency often, so just find out where he is "watching" and set XIT/RIT split accordingly. Watching the xmit timing patterns on the waterfall can give a good indication where calling stations are making contact.

4. It got a lot easier for me when I tried NOT to make it "too hard." Hi hi.

73, Dave

W7IWW
(Edited)
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Bill-W9OL

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It's just that 50 years of dxing....I've done it with just one soundcard (slice) and I can't seem to get my head around this new way of doing it...
I will be using the RIT suggestions tonight and tomorrow.
Thanks to all for the suggestions.
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Greg

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Using RIT/XIT is a work around but not a good solution.  When using DX clusters and a station is reported working split when you click the spot the radio should set slice A and slice B to the appropriate frequencies and make slice B the TX VFO.  But nothing happens with the DAX setting or the soundcard setting being used by the digimode software in use.

I think it would almost be better to have DAX channels assigned by panadapter and not by slice.

73
Greg
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Ernest - W4EG

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Bill,

You really do not need to have two slice open to work split!
I constantly use the X/RIT to work split 5 up on all mode that is requested.
I use it with HRD and DM780 with no issues; or just plain with CW or SSB running.
(Edited)
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Bill-W9OL

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ok Greg that's one way....when I select a station operating split, Flex would automagically assign the transmit DAX to the split frequency.
I agree, using RIT requires you to actually listen to most every person transmitting.
Where as you can watch the waterfall and see a pattern emerge.
then jump ahead by the appropriate amount.

Many a qso made by just watching the pattern in the panadaptor.

Very good suggestion.....