Recommendations for DSP Unit??
 

Lucky wrote:

Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a Lowe 150
and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

I don't use DSP's often but I've tried a Timewave 59, a JPS NIR-10 and still
have a W9GR DSP-3.

Of the three, the W9GR seemed to be the most useful. It was designed to work
with SSB. Unfortunately, they're out of production because of parts
availability, and W9GR is too busy to develop a replacement.

http://www.w9gr.com/

A friend has one we think was used by a government agency and it's the best I've
heard. He's got an automated search to try to find another one, but he's been
looking for about 3 years. I forget the brand, but it's obscure.

I thought about getting a DSP unit as well. I haven't done it because
I've gotten conflicting reports about their effectiveness and they're
not cheap. Several people have also told me that none of these units
are yet able to equal the noise reduction capabilities of some of the
better, older analog audio filters, like the Datong models from the
1980s. Though I haven't received it yet, I did manage to get an
inexpensive Datong FL1, in good condition, off of ebay. We'll see how
it performs. It didn't cost too much, so I figure I can only be
pleasantly surprised.....

I've considered and to some extent am still considering a Clear Speech
speaker. However, no one has been able to tell me much about what the
speaker itself sounds like. It might be great at noise reduction, but
if its relatively quiet audio is of generally poor quality...well, that
wouldn't be good. What would it be like to listen to Radio Prague on
the Clear Speech?

Steve

Oh, and congratulations on the 150! I hope you'll let us know what you
think of it. I find it a lot of fun to use....largely because of the
excellent tuning knob.

Steve

wrote in message
oups.com...
I thought about getting a DSP unit as well. I haven't done it because
I've gotten conflicting reports about their effectiveness and they're
not cheap. Several people have also told me that none of these units
are yet able to equal the noise reduction capabilities of some of the
better, older analog audio filters, like the Datong models from the
1980s. Though I haven't received it yet, I did manage to get an
inexpensive Datong FL1, in good condition, off of ebay. We'll see how
it performs. It didn't cost too much, so I figure I can only be
pleasantly surprised.....

I've considered and to some extent am still considering a Clear Speech
speaker. However, no one has been able to tell me much about what the
speaker itself sounds like. It might be great at noise reduction, but
if its relatively quiet audio is of generally poor quality...well, that
wouldn't be good. What would it be like to listen to Radio Prague on
the Clear Speech?

Steve


But you can hook up extra speakers to it so you don't have to use the main
speaker all the time. I wonder if you can turn off the main speaker if
you're not using it?

Yes I'm excited. I'm still waiting on the 150 to get here! He said he sent
it out on Tues morning. I might get this week if he sent it out 2-3 Priority
mail like it said on the ad. I asked him to double box it. It came with the
keypad too. Good seller also.

Lucky

"Mark S. Holden" wrote in message
...
Lucky wrote:

Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a Lowe
150
and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

I don't use DSP's often but I've tried a Timewave 59, a JPS NIR-10 and
still
have a W9GR DSP-3.

Of the three, the W9GR seemed to be the most useful. It was designed to
work
with SSB. Unfortunately, they're out of production because of parts
availability, and W9GR is too busy to develop a replacement.

http://www.w9gr.com/

A friend has one we think was used by a government agency and it's the
best I've
heard. He's got an automated search to try to find another one, but he's
been
looking for about 3 years. I forget the brand, but it's obscure.

Mark,

was there more then one model of the W9GR or just one?

So the NIR-10 was not too good on SSB?

Lucky

"Lucky" wrote in message
...

"Mark S. Holden" wrote in message
...
Lucky wrote:

Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a Lowe
150
and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

I don't use DSP's often but I've tried a Timewave 59, a JPS NIR-10 and
still
have a W9GR DSP-3.

Of the three, the W9GR seemed to be the most useful. It was designed to
work
with SSB. Unfortunately, they're out of production because of parts
availability, and W9GR is too busy to develop a replacement.

http://www.w9gr.com/

A friend has one we think was used by a government agency and it's the
best I've
heard. He's got an automated search to try to find another one, but he's
been
looking for about 3 years. I forget the brand, but it's obscure.

Mark,

was there more then one model of the W9GR or just one?

So the NIR-10 was not too good on SSB?

Lucky


I see there were 3 models

wrote in message
oups.com...
Oh, and congratulations on the 150! I hope you'll let us know what you
think of it. I find it a lot of fun to use....largely because of the
excellent tuning knob.

Steve


I got it I got it! He did send it 2-3 day. Wow.
That was fast. Gotta go :)

Lucky

I have a NIR-10. It works fairly well but keep the manual handy as it's not
very intuitive!



"Mark S. Holden" wrote in message
...
Lucky wrote:

Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a Lowe
150
and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

I don't use DSP's often but I've tried a Timewave 59, a JPS NIR-10 and
still
have a W9GR DSP-3.

Of the three, the W9GR seemed to be the most useful. It was designed to
work
with SSB. Unfortunately, they're out of production because of parts
availability, and W9GR is too busy to develop a replacement.

http://www.w9gr.com/

A friend has one we think was used by a government agency and it's the
best I've
heard. He's got an automated search to try to find another one, but he's
been
looking for about 3 years. I forget the brand, but it's obscure.

Maybe borrow and sample a "Clear Speech Unit".
Now made by Heil

URL:
http://www.heilsound.com/amateur/cle...ch_speaker.htm

--
Caveat Lector (Reader Beware)



"Jim Hackett" wrote in message
nk.net...
I have a NIR-10. It works fairly well but keep the manual handy as it's
not very intuitive!



"Mark S. Holden" wrote in message
...
Lucky wrote:

Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a Lowe
150
and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

I don't use DSP's often but I've tried a Timewave 59, a JPS NIR-10 and
still
have a W9GR DSP-3.

Of the three, the W9GR seemed to be the most useful. It was designed to
work
with SSB. Unfortunately, they're out of production because of parts
availability, and W9GR is too busy to develop a replacement.

http://www.w9gr.com/

A friend has one we think was used by a government agency and it's the
best I've
heard. He's got an automated search to try to find another one, but he's
been
looking for about 3 years. I forget the brand, but it's obscure.

Jim Hackett wrote:

I have a NIR-10. It works fairly well but keep the manual handy as it's not
very intuitive!


As I recall, the NIR-10 took a lot more fiddling than the W9GR-3.

Lucky wrote:
Hi guys

I want to pick up a DSP unit for some of my radios. I picked up a
Lowe 150 and want to get DSP for it.

I've been looking at some used models like the
JPS NIR-10 and JPS NF-60 DSP Notch Filter.

Have any of you used one of these or can make a recommendation?
I will be using it SSB as well as AM.

Thanks
Lucky

Lucky:
I use the Timewave DSP-599zx unit and it works pretty well. I have the
NF-60 but, as advertized, it's a notch filter only.

--
Brian Denley
http://home.comcast.net/~b.denley/index.html

Heck, just download some free software, and run the audio through
your puter, if you want to give it a test drive. Those DSP's seem
to be as good, or even better than the outboard hardware versions.
I use SBFFT, MM-DSP, etc. Chromasound is pretty good for payware.
They have a free demo which runs 15 min a shot. You have to restart
it after 15 min...It's pretty good.
Some do some things better than others.
SBFFT is good for making "brick wall" filters, and can run up to six
filters at once. It's a DOS program though. No problem here, as I still

run win 98...
The others are good for all around filters, and NR.
I have DSP built into my ic-706, and my DSP on the puter is much more
powerful as far as bandpass/stop filters. Chromasound has autonotch.
In fact, I've compared the auto notch in the icom, to chromasound,
and there was no difference I could tell. You need a full duplex
soundcard to run these. Myself, I've got DSP out the kazoo,
and hardly use it...
I think it's overrated... Sure the NB works, but it muffles the audio..
The autonotch works great, *until* you started having SSB voice on top
of the heterodyne, and then the autonotch gets confused, and pulses
on and off between words...I prefer the fixed notch in my 830, or
even the fixed DSP notches in the puter software.....
SBFFT is great for taking razor thin slices out of a bandpass...IE:
a heterodyne on a MW station, etc...
When I'm on 160m, and trying to cut noise to hear super weak sigs,
do I use DSP?
Nope...I use my variable bandwidth filters, IF shift, and manual notch
thats on the TS-830. That combo is better than DSP, more adjustable,
and molests the desired signal less. MK

I have tried LOTS of DSP solutions for HF SSB and nothing works as well as the
Clear Speech speaker with built in DSP. I dont like the user interface (dip
swicthes) but the unit flat out works better than anything I have seen.
Curious, since it was orginally engineered by a small company with nowhere near
the engineering resources of ICOM etc.

"BOEING377" wrote in message
...
I have tried LOTS of DSP solutions for HF SSB and nothing works as well as
the
Clear Speech speaker with built in DSP. I dont like the user interface
(dip
swicthes) but the unit flat out works better than anything I have seen.
Curious, since it was orginally engineered by a small company with nowhere
near
the engineering resources of ICOM etc.

More and more people are talking about this one.

Lucky

Taken over by Heil Products -- see URL:
http://www.heilsound.com/amateur/cle...ch_speaker.htm
--
Caveat Lector (Reader Beware)



"BOEING377" wrote in message
...
I have tried LOTS of DSP solutions for HF SSB and nothing works as well as
the
Clear Speech speaker with built in DSP. I dont like the user interface
(dip
swicthes) but the unit flat out works better than anything I have seen.
Curious, since it was orginally engineered by a small company with nowhere
near
the engineering resources of ICOM etc.

BOEING377 wrote:

I have tried LOTS of DSP solutions for HF SSB and nothing works as well as the
Clear Speech speaker with built in DSP. I dont like the user interface (dip
swicthes) but the unit flat out works better than anything I have seen.
Curious, since it was orginally engineered by a small company with nowhere near
the engineering resources of ICOM etc.

What ClearSpeech will not do is take out heterodynes, at least weak ones,
and get rid of SSB interference that's offset in the direction of the sideband,
a notable condition because a linear brickwall filter takes it away completely.

In particular, it has no manual notch, and no brickwall filter. It's deficient
in adjustable linear filters, in other words.

What it does do is a good job of recognizing various forms of noise
interference on speech, and taking out the noise, sometimes spectacularly,
leaving the speech.

Or, in my case, bird calls from the backyard bird microphone.

So it's the noise reduction, or the non-linear filtering, that the ClearSpeech
has the edge on, much better than any other I've seen so far.

The Timewave 599zx takes out the noise but leaves the speech sounding muffled;
the JSP NIR-12 has a couple of noise reduction methods, one of which sometimes
works on ignition type noise better than the ClearSpeech but not often, but
neither of which I'd normally go to first.

The 599zx has the best adjustable linear filters, but alas only a single manual
notch; and the widest bandwidth (5khz) of the bunch.
--
Ron Hardin


On the internet, nobody knows you're a jerk.

wrote:
Heck, just download some free software, and run the audio through
your puter, if you want to give it a test drive. Those DSP's seem
to be as good, or even better than the outboard hardware versions.
I use SBFFT, MM-DSP, etc. Chromasound is pretty good for payware.
They have a free demo which runs 15 min a shot. You have to restart
it after 15 min...It's pretty good.
Some do some things better than others.
SBFFT is good for making "brick wall" filters, and can run up to six
filters at once. It's a DOS program though. No problem here, as I
still

Good point. I like SR5 even better and it's now free:
http://www.ar5.ndo.co.uk/

--
Brian Denley
http://home.comcast.net/~b.denley/index.html

"Ron Hardin" wrote in message
...
BOEING377 wrote:

I have tried LOTS of DSP solutions for HF SSB and nothing works as well
as the
Clear Speech speaker with built in DSP. I dont like the user interface
(dip
swicthes) but the unit flat out works better than anything I have seen.
Curious, since it was orginally engineered by a small company with
nowhere near
the engineering resources of ICOM etc.

What ClearSpeech will not do is take out heterodynes, at least weak ones,
and get rid of SSB interference that's offset in the direction of the
sideband,
a notable condition because a linear brickwall filter takes it away
completely.

In particular, it has no manual notch, and no brickwall filter. It's
deficient
in adjustable linear filters, in other words.

What it does do is a good job of recognizing various forms of noise
interference on speech, and taking out the noise, sometimes spectacularly,
leaving the speech.

Or, in my case, bird calls from the backyard bird microphone.

So it's the noise reduction, or the non-linear filtering, that the
ClearSpeech
has the edge on, much better than any other I've seen so far.

The Timewave 599zx takes out the noise but leaves the speech sounding
muffled;
the JSP NIR-12 has a couple of noise reduction methods, one of which
sometimes
works on ignition type noise better than the ClearSpeech but not often,
but
neither of which I'd normally go to first.

The 599zx has the best adjustable linear filters, but alas only a single
manual
notch; and the widest bandwidth (5khz) of the bunch.
--
Ron Hardin


On the internet, nobody knows you're a jerk.

Hi Ron

You see I need a notch filter on the HF-150 imo. I was thinking of picking
up just the NIR-60 for now. It's just a notch filter. The 150 doesn't really
need DSP, but it would make it even better. But, I could use a DSP unit with
the rest of rigs except the Icom R-75 which already has superb DSP for the
price.

I don't get many hets in SSB, but in AM I do.
I like AM 610 WIOD outta Miami but even attenuating it doesn't help much.
The R-75 takes it right out either using ECSS or the ANF.

So I guess I pass on the Clearspeech till I hear more reviews from end
users. I was all about to order the Clearspeech too.

Hey Ronnie,

why don't you buy binoculars with a built in camera? I have one. So cool to
catch these winged creatures close up. Look on Ebay.

Lucky

Lucky wrote:
You see I need a notch filter on the HF-150 imo. I was thinking of picking
up just the NIR-60 for now. It's just a notch filter. The 150 doesn't really
need DSP, but it would make it even better. But, I could use a DSP unit with
the rest of rigs except the Icom R-75 which already has superb DSP for the
price.

Be warned that automatic notch filters don't work except on really loud
heterodynes. The weak ones stay there, hour after hour, if you're listening
to some broadcast with a weak het on it.

Manual notch filters take out what you tune them to take out, no matter
how weak.

I never use the automatic notches on any of my DSP's, so useless are they.
--
Ron Hardin


On the internet, nobody knows you're a jerk.

Ron Hardin schrieb:

I never use the automatic notches on any of my DSP's, so useless are they.

I liked the 'UT-106' DSP-option from the Pcr-1000 for its automatic
multi-notch only. This unit also works in the Icom 706 TRX-series.
It filtered very nicely especially very weak hets. But I found it was
useless on reducing QRM or QRN noise.
At least my manual notches on the NRD-525 and the external analog filter
notches of the Datong FL2 and the Dierking DG82NF have deeper skirts.

Good point. I like SR5 even better and it's now free:
http://www.ar5.ndo.co.uk/ ...........

I tried that one out...Not bad... One neat feature is
the "draw a filter" capabilities. You can draw a
passband filter with your mouse, up on the top
filter bar, and it adjusts in real time as you shape
it. "not counting the slight delay most all puter DSP's
have from the input... Pretty kewl...
IE: Wanna midrange peak, just draw it, and you can hear
the filter change as you draw it.
Wanna CW filter with 400 hz width? You can draw it in a
flash, and it's instant on....Another worthy entry to
my DSP collection...:)The only thing about the puter DSP's
I don't like is the slight delay..It's no problem for just
listening, but it's a royal PIA if you are working CW, and
need to hear your sidetone in real time. So to use the dsp,
I have to either cut it off when sending, or use a stand
alone sidetone for the keyer... MK

I liked the 'UT-106' DSP-option from the Pcr-1000 for its automatic
multi-notch only. This unit also works in the Icom 706 TRX-series

That *is* the icom DSP that is in the 706..
Some other icoms too...
That was an option on the 706mk2, and standard
on the 706mk2g. MK

schrieb:


That *is* the icom DSP that is in the 706..
Some other icoms too...
That was an option on the 706mk2, and standard
on the 706mk2g. MK


I know. But AFAIK the UT-106 was released for the PCR-1000 first.