I'm sure this is going to be a flat-forehead mistake, but even with my volume cranked up to 100, I get very little volume from the rig. Same with the PC software and the PC's speaker volume on MAX. Where should I look to fix this?

Jack, W8TEE

Hi David, explaining what that setting *does* is easy. What it is *for* is a more complex question.

When you select the mode CW SH+ or CW SH- in SW2, the CW passband is moved up (or down) by that SH Delta frequency. The tuning freq stays where it was, but the actual receive passband is offset up (or down) by that offset.
For example, if I am listening on 14200.000 USB and someone starts sending me CW with one of those rigs which sends 600Hz above the tuning frequency (as some seem to) then I can just select CW SH+ mode and it gives me a CW passband which is offset from my tuning frequency. If I set 200Hz BW, and a 600Hz SH Delta, it gives me a receive passband from 14200.500 to 14200.700. If I had an 800Hz delta and 100Hz BW, the passband would be from 14200.750 to 14200.850 and so on.
However, my transmit frequency appears to remain on 14200.000, which is weird and makes the mode pretty much useless. I hope someone with more knowledge about this can fill you (and me) in.
The use-case I can imagine is like last Tuesday, when I was trying to work a weak station on 13cm USB. He came back to me on CW, but 600Hz up from my tuning frequency, so I could hear him fine in USB mode, but I needed to select CW mode and move up 600Hz to work him. If CW SH+ worked as I expect it to, I could just hit that mode, hear him with a 600Hz beat note and work him on his own carrier frequency. Sadly, in CW SH+, I would be sending 600Hz below his frequency and lose the QSO. If he called me zero-beat, I would miss him of course because of the excellent filtering inthe DUO.
There were some discussions a year or so back about why the tuning on CW works backwards, which led to the REV option, which gives a much more intuitive CW experience. I think someone added in some comments on the CW SH modes, but I can't recall any details. Maybe some judicious searches on the very excellent and comprehensive search utility in Yahoo Groups might find something. He said, with a hint of sarcasm.
If anyone can explain how to use CW SH+ (or any other technique) to work stations who call me on CW offset 600Hz HF while I am using USB, without having to change my tuning frequency, I'd be hugely grateful.
Neil G4DBN

Hi David, explaining what that setting *does* is easy.� What it is *for* is a more complex question.

When you select the mode CW SH+ or CW SH- in SW2, the CW passband is moved up (or down) by that SH Delta frequency.� The tuning freq stays where it was, but the actual receive passband is offset up (or down) by that offset.

For example, if I am listening on 14200.000 USB and someone starts sending me CW with one of those rigs which sends 600Hz above the tuning frequency (as some seem to) then I can just select CW SH+ mode and it gives me a CW passband which is offset from my tuning frequency.� If I set 200Hz BW, and a 600Hz SH Delta, it gives me a receive passband from 14200.500 to 14200.700.� If I had an 800Hz delta and 100Hz BW, the passband would be from 14200.750 to 14200.850 and so on.

However, my transmit frequency appears to remain on 14200.000, which is weird and makes the mode pretty much useless.�� I hope someone with more knowledge about this can fill you (and me) in.

The use-case I can imagine is like last Tuesday, when I was trying to work a weak station on 13cm USB.� He came back to me on CW, but 600Hz up from my tuning frequency, so I could hear him fine in USB mode, but I needed to select CW mode and move up 600Hz to work him.� If CW SH+ worked as I expect it to, I could just hit that mode, hear him with a 600Hz beat note and work him on his own carrier frequency.� Sadly, in CW SH+, I would be sending 600Hz below his frequency and lose the QSO. If he called me zero-beat, I would miss him of course because of the excellent filtering inthe DUO.

There were some discussions a year or so back about why the tuning on CW works backwards, which led to the REV option, which gives a much more intuitive CW experience.� I think someone added in some comments on the CW SH modes, but I can't recall any details. Maybe some judicious searches on the very excellent and comprehensive search utility in Yahoo Groups might find something. He said, with a hint of sarcasm.

If anyone can explain how to use CW SH+ (or any other technique) to work stations who call me on CW offset 600Hz HF while I am using USB, without having to change my tuning frequency, I'd be hugely grateful.

Neil G4DBN

�

Hello All,

I asked the question several weeks ago, but it appears no-one knows the
answer.
On the Demod tab, I can set the CW pitch. But what does "CW SH Delta Freq"
mean? Presumably something to do with the filter shape, but I can't guess
what the abbreviation means.

Is there anyone who will share their knowledge?

Best Wishes
David, GM8XBZ

Virus-free. www.avast.com

Black, SN SF018B, Purchased Jun 2015 at Dayton Hamvention. Recently upgraded to current firmware, excellent condition. Original packing box with all accessories (cables, microphone, USB memory flash drive). Reason for selling: not being used. $900 plus shipping. PayPal preferred. US only.

hello all....

Hi Randy, it you click on the TX at the top of the waterfall, then on the ADV tab, it brings up a screen like this, wiht TUNE and PTT and a graphic equaliser, VOX, compressor and filter settings and the option to play files.  You have to click on the start button at bottom right to enable the PTT and the others to enable the various functions.

Neil G4DBN

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Been using my FDM-S2 for a while and all has been good.

Just today I turned on the S2 and the blue ON LED was lit as usual. Then I loaded FDM-SW2 OK. As soon as I clicked the Power On button on SW2 the S2 ON LED went out. Other than that the S2 is behaving normally with SW2; as I change band the USB light on the S2 blinks momentarily, again as normal.

When I looked closely at the S2 ON LED it wasn't completely out but very dim and flickering a bit. It has been on for a bit and the ON LED is now completely out. But otherwise the S2 seems OK.

Has anyone else experienced this, and if so should I be worried; is a complete failure of the S2 going to happen soon?

Thanks,

Andrew G4AFI