Elecraft › [K3]

WSPR2.0 at 277.2KHz

Classic

List

Threaded

10 messages Options

wa9fvp

WSPR2.0 at 277.2KHz

Good Whisper reception on my K3S at 474.2KHz. The NB and NR helps a lot. My QTH is EN-61

UTC dB DT Freq Call

0426 -22 -0.7 0.4742 0 WH2XGP DN07 37
0426 -13 -1.1 0.4742 0 WG2XKA FN33 30
0426 -18 -1.2 0.4742 0 WH2XZO EM85 30
0426 -10 -1.1 0.4742 0 WG2XIQ EM12 37
0428 -10 -0.9 0.4742 0 WI2XSV EN61 23
0428 -2 -1.1 0.4742 0 WG2XXM EM15 37
0428 -25 -0.9 0.4742 0 WI2XSV EN61 23
0430 -13 -1.0 0.4742 0 WH2XXP DM33 47
0430 -17 -0.9 0.4742 0 WH2XZO EM85 30

Jack WA9FVP

Sent from my home-brew I5 Core PC

Christopher Hoover

Re: WSPR2.0 at 277.2KHz

NR is not typically used on digital modes. I don't think you can even turn
it on in DATA mode.

73 de AI6KG, Christopher.

On Mon, Mar 20, 2017 at 9:49 PM, wa9fvp <[hidden email]> wrote:

> Good Whisper reception on my K3S at 474.2KHz. The NB and NR helps a lot.
> My QTH is EN-61
>
> UTC dB DT Freq Call
>
> 0426 -22 -0.7 0.4742 0 WH2XGP DN07 37
> 0426 -13 -1.1 0.4742 0 WG2XKA FN33 30
> 0426 -18 -1.2 0.4742 0 WH2XZO EM85 30
> 0426 -10 -1.1 0.4742 0 WG2XIQ EM12 37
> 0428 -10 -0.9 0.4742 0 WI2XSV EN61 23
> 0428 -2 -1.1 0.4742 0 WG2XXM EM15 37
> 0428 -25 -0.9 0.4742 0 WI2XSV EN61 23
> 0430 -13 -1.0 0.4742 0 WH2XXP DM33 47
> 0430 -17 -0.9 0.4742 0 WH2XZO EM85 30
>
>
>
> -----
> Jack WA9FVP
>
> Sent from my TRS-80 :-)
> --
> View this message in context: http://elecraft.365791.n2.
> nabble.com/WSPR2-0-at-277-2KHz-tp7628363.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

wa9fvp

Re: WSPR2.0 at 277.2KHz

Noise reduction is also available in CW mode. The LMS algorithm converges on a sinisoidal wave and forms a filter around the signal. CW or WSPR is pure sinisoidal and the NR works the best with these two modes. Last night, I was getting QRN and the NR/NB made it more plesent to the ear. In spite of that, when I turned off NR/NB, WSPR dB levels were about the same.

Jack WA9FVP

Sent from my home-brew I5 Core PC

wa9fvp

Re: WSPR2.0 at 277.2KHz

I forgot to mention that I was using USB mode and the audio was being fed to my PC via the USB port. The WSPR software was connected to the K3S CODEC.

Jack WA9FVP

Sent from my home-brew I5 Core PC

Elecraft mailing list

Re: WSPR2.0 at 277.2KHz

In reply to this post by wa9fvp

Jack,Thanks for the 630M wspr report , I have been on 630M for almost 4 years , Andthis band is still amazing to me .Decode from G3XKR last night.Rig : K3 with HB class D pwr amp , Ant 60 ft vertical with top loading.73 Ken K5DNL/WG2XXM

On Tuesday, March 21, 2017 8:30 AM, wa9fvp <[hidden email]> wrote:

Noise reduction is also available in CW mode. The LMS algorithm converges on
a sinisoidal wave and forms a filter around the signal. CW or WSPR is pure
sinisoidal and the NR works the best with these two modes. Last night, I
was getting QRN and the NR/NB made it more plesent to the ear. In spite of
that, when I turned off NR/NB, WSPR dB levels were about the same.

-----
Jack WA9FVP

Sent from my TRS-80 :-)
--
View this message in context: http://elecraft.365791.n2.nabble.com/WSPR2-0-at-277-2KHz-tp7628363p7628377.html
Sent from the Elecraft mailing list archive at Nabble.com.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

k6dgw

Re: WSPR2.0 at 277.2KHz

In reply to this post by wa9fvp

Has anyone noticed that 277.2 KHz is not in a ham band?

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 3/21/2017 7:24 AM, Walter Underwood wrote:

> The noise blanker might help, but NR will almost certainly distort the signal.
>
> I would turn off NR and see if the signal improves.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On Mar 20, 2017, at 9:49 PM, wa9fvp <[hidden email]> wrote:
>>
>> Good Whisper reception on my K3S at 474.2KHz. The NB and NR helps a lot.
>> My QTH is EN-61
>>
>> UTC dB DT Freq Call
>>
>> 0426 -22 -0.7 0.4742 0 WH2XGP DN07 37
>> 0426 -13 -1.1 0.4742 0 WG2XKA FN33 30
>> 0426 -18 -1.2 0.4742 0 WH2XZO EM85 30
>> 0426 -10 -1.1 0.4742 0 WG2XIQ EM12 37
>> 0428 -10 -0.9 0.4742 0 WI2XSV EN61 23
>> 0428 -2 -1.1 0.4742 0 WG2XXM EM15 37
>> 0428 -25 -0.9 0.4742 0 WI2XSV EN61 23
>> 0430 -13 -1.0 0.4742 0 WH2XXP DM33 47
>> 0430 -17 -0.9 0.4742 0 WH2XZO EM85 30
>>
>>
>>
>> -----
>> Jack WA9FVP
>>

Elecraft mailing list

Re: WSPR2.0 at 277.2KHz

For the 630M experimental band set your dial to 474.2 USB , Mostxmit on WSPR , However there are some CW and JT9 two-way qso's.I am txing now.

73 Ken K5DNL/WG2XXM

On Tuesday, March 21, 2017 6:21 PM, Fred Jensen <[hidden email]> wrote:

Has anyone noticed that 277.2 KHz is not in a ham band?

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 3/21/2017 7:24 AM, Walter Underwood wrote:

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Lynn W. Taylor, WB6UUT

Re: WSPR2.0 at 277.2KHz

In reply to this post by k6dgw

Probably explains calls with an "X" after the digit. I'd guess they're
experimental licenses, not ham licenses.

73 -- Lynn

On 3/21/2017 4:18 PM, Fred Jensen wrote:

> Has anyone noticed that 277.2 KHz is not in a ham band?
>
> 73,
>
> Fred ("Skip") K6DGW
> Sparks NV USA
> Washoe County DM09dn
>
> On 3/21/2017 7:24 AM, Walter Underwood wrote:
>> The noise blanker might help, but NR will almost certainly distort the
>> signal.
>>
>> I would turn off NR and see if the signal improves.
>>
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/ (my blog)
>>
>>> On Mar 20, 2017, at 9:49 PM, wa9fvp <[hidden email]> wrote:
>>>
>>> Good Whisper reception on my K3S at 474.2KHz. The NB and NR helps a
>>> lot.
>>> My QTH is EN-61
>>>
>>> UTC dB DT Freq Call
>>>
>>> 0426 -22 -0.7 0.4742 0 WH2XGP DN07 37
>>> 0426 -13 -1.1 0.4742 0 WG2XKA FN33 30
>>> 0426 -18 -1.2 0.4742 0 WH2XZO EM85 30
>>> 0426 -10 -1.1 0.4742 0 WG2XIQ EM12 37
>>> 0428 -10 -0.9 0.4742 0 WI2XSV EN61 23
>>> 0428 -2 -1.1 0.4742 0 WG2XXM EM15 37
>>> 0428 -25 -0.9 0.4742 0 WI2XSV EN61 23
>>> 0430 -13 -1.0 0.4742 0 WH2XXP DM33 47
>>> 0430 -17 -0.9 0.4742 0 WH2XZO EM85 30
>>>
>>>
>>>
>>> -----
>>> Jack WA9FVP
>>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

wa9fvp

Re: WSPR2.0 at 277.2KHz

In reply to this post by k6dgw

Yes, it's not but I was explaining software that can copy data outside the ham Bands.

Jack WA9FVP

Sent from my home-brew I5 Core PC

wa9fvp

Re: WSPR2.0 at 474.2KHz

Henceforth , the threads should read "WSPR2.0 at 474.2KHz" That was my mistake.

Here's a test with NR on and NR off

0328 -29 -1.5 0.475617 0 WI2XSV EN61 23 (NR On)
0334 -27 -1.5 0.475617 0 WI2XSV EN61 23 (NR Off)
0338 -29 -1.6 0.475617 0 WI2XSV EN61 23 (NR Off)
0342 -29 -1.5 0.475617 0 WI2XSV EN61 23 (NR Off)
0346 -31 -1.7 0.475617 0 WI2XSV EN61 23 (NR On)
0350 -31 -1.4 0.475617 0 WI2XSV EN61 23 (NR On)

Not much change.

Jack WA9FVP

Sent from my home-brew I5 Core PC