TS 570D Problems

[keith rawlings]

Hi There.

I have a friend who is an amateur who lives close to me and he uses a
Kenwood TS570D hf tranciever.

When he switches the DSP function on there is an increase in
noise,similar to a RX which is suffering from crossmod.ie a type of
hetrodyning, whistling sound.

So he has asked to to post this on the news group to see if anyone else
is suffering from the same problem.

He bought the rig second hand so he thinks there may be a fault.

Cheers...............73's De Keith G4MIU
--
keith rawlings

[Jim]

Have a 570DG here, no problems like you mentioned noticed here. Nice rig.

73 de KE4WY Jim

keith rawlings <ke...@recelectronics.demon.co.uk> wrote in message
news:JbkBKDAo...@recelectronics.demon.co.uk...

[Phil Wheeler]

Make sure he is using NR1 for SSB, not NR2. NR2 works quite well for
CW.

Phil

[Adam Adkins]

In article <JbkBKDAo...@recelectronics.demon.co.uk>,
ke...@recelectronics.demon.co.uk says...

> I have a friend who is an amateur who lives close to me and he uses a
> Kenwood TS570D hf tranciever.

I also use a TS-570D, and perhaps can shed some light on this.
Or perhaps not.

> When he switches the DSP function on there is an increase in
> noise,similar to a RX which is suffering from crossmod.ie a type of
> hetrodyning, whistling sound.

That will commonly happen when you tune around SWB stations in CW
(which is irritating) and SSB (which is extremely irritating). The
howling sound is normally right at the front and back end of the 5khz
range the broadcaster is present on. Annoying, but it happens to me as
well. The best answer I have found is to use the Beat Cancel function.
It doesn't eliminate the shrill whistling, but it makes it bearable to
tune over.

> So he has asked to to post this on the news group to see if anyone else
> is suffering from the same problem.

Yes, indeed. And I wonder if your friend is having that problem
mostly on 40 meters? That's where I get killed, at night, when Euruope,
Asia and the Caribbean crush the band with SWB.

--
***********
Adam KM5SS

[Jim]

Adam, if you talking about switching the NR on in SSB that may just be true.
I have a 570DG model and noticed this the first time I used it; However in
the upgrade from a 570D to the 570DG they made some worthwhile improvements.
Menu item 51 allows you to adjust the level of noise reduction which worked
for me, On the 570D the level is fixed. The 570D has 46 menu items where the
570DG has 51 menu items and some improvements.

73 de KE4WY Jim

Adam Adkins <aadk...@home.com> wrote in message
news:MPG.1168ea4c6901d0ef989681@news...

[Phil Wheeler]

I'll second that!

Phil