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De: Psk31 Digest <owner-psk31@aintel.bi.ehu.es>
Para: <psk31-digest@bipt106.bi.ehu.es>
Asunto: Psk31 Digest V1 #429
Fecha: martes 20 de junio de 2000 4:26
Psk31 Digest Tuesday, June 20 2000 Volume 01 : Number 429
In this issue:
[psk31] Kenwood TS-850 on PSK
[psk31] Sound Card
Re: [psk31] Sound Card
[psk31] 60 Hz hum
[psk31] Fwd: [hfsig] First PICCOLO 2000 QSO
Re: [psk31] Fwd: [hfsig] First PICCOLO 2000 QSO
Re: [psk31] 60 Hz hum
Re: [psk31] Sound Card
[psk31] RIGblaster, PSK31 and Laptops
Re: [psk31] RIGblaster, PSK31 and Laptops
Re: [psk31] 60 Hz hum
See the end of the digest for information about psk31-digest
----------------------------------------------------------------------
Date: Mon, 19 Jun 2000 08:15:03 -0400
From: "Floyd Sense" <sentek@sprintmail.com>
Subject: [psk31] Kenwood TS-850 on PSK
Yesterday, I asked a question regarding supposed Kenwood modifications for
running PSK on the 850. I found the answer on the Kenwood website this
morning. There are five service bulletins for the TS-850 and the one you
want is ASB1000. While it specifically addresses use of a TNC with the 850
for packet, the problem could also occur with PSK as you are using the same
audio input to the 850, namely, Pin 11 (identified as PKD) on ACC2. It's
basically a problem of overdriving the 850 microphone amplifier, which the
PKD pin feeds. Use of a 10db attenuating pad is mentioned, along with
replacement of two chip resistors in the 850. An accompanying diagram shows
the 850 "meter" and indicates the ALC level which should not be exceeded.
Here are the URLs for the information:
http://216.98.255.24/Amateur/AmateurServiceBulletins/ASB1000A.jpg
http://216.98.255.24/Amateur/AmateurServiceBulletins/ASB1000B.jpg
K8AC
Floyd Sense - Angier, NC
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Date: Mon, 19 Jun 2000 07:57:31 -0700
From: "Mike Michon" <michon@eatel.net>
Subject: [psk31] Sound Card
I am trying to get software for PSK31 to run. Have a disc form Rigblaster
package that has 4 programs in it. Computer is 486dx, soundblaster pro
card.
digipan says sound card is already in use or is not there
winpsk31 laods but won't receive anything
logger says (its too fast to see it all) some driver is not in sound card.
The sound card works fine in the computer for other programs.
I have audio coming out of speakers on sound card, input from headphone jack
of a ten etc Corsair ll radio to computer sound card in jack.
Any idea about what is wrong???
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------------------------------
Date: Mon, 19 Jun 2000 09:50:46 -0600
From: "Gary McDuffie, Sr." <mcduffie@scottsbluff.net>
Subject: Re: [psk31] Sound Card
On Mon, 19 Jun 2000 07:57:31 -0700, Mike Michon wrote:
> Any idea about what is wrong???
For what it's worth, a 486 won't work well on any of these sound card
modes. You can get by with it if you use the basic G3PLX program for
psk, but most of the others are far to processor intense. I finally
gave up trying to use my 486/100 and got a cheap eMachine 333 that does
just fine. It only cost me $300 at the time and had everything needed,
nothing to add.
Gary
ag0n at arrl dot net
- --
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Date: Mon, 19 Jun 2000 13:19:00 -0600
From: berferd <jrp@dimensional.com>
Subject: [psk31] 60 Hz hum
Hi,
I've been operating PSK31 for about a month now. The txcr is
an Icom IC-756 and I use the accessory jack with 1:1 audio
transformers. The schematic I used is located at
http://www.packetradio.com/sb16rads/ic8acc.gif
Last night I was operating voice and the person I was talking
to said there was a 60Hz hum in my audio. I shut down
everything in the shack except for the txcr, but the hum
was still there.
The last thing I tried was unplugging the DIN plug for my psk31
interface from the rig. The hum disappeared. What confuses
me is that my computer was powered off (although it was still
plugged into the power strip). I didn't get a chance to try it
with the DIN plug connected to the txcr and the computer
unpluged from the power strip.
All my radio equipment is connected to an RF ground, but
the computer isn't. I was wondering if anyone else has
experienced this problem.
73,
Jeff KI0RO
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------------------------------
Date: Mon, 19 Jun 2000 22:09:14 +0200
From: Eduardo Jacob <edu@kender.es>
Subject: [psk31] Fwd: [hfsig] First PICCOLO 2000 QSO
As Murray or Nino didn't crosspost here I forward it:
>From: "Nino Porcino" <porcino@sysonline.it>
>Subject: [hfsig] First PICCOLO 2000 QSO
>Date: Sun, 18 Jun 2000 12:15:56 +0200
>I'm proud to announce that today me (IZ8BLY) and Murray (ZL1BPU) have made the first Piccolo 2000 QSO! It was a 17,000 Km DX, nice result eh?
>
>The new mode showed great advantage over PSK modulation and performed quite error-free with barely audible signals.
>
>Among the various combinations the most interesting was: 32-tones MFSK running at 7.8125 baud, spaced 7.8125 Hz each for a total bandwidth of 250 Hz. The use of Varicode and FEC convolutional code (R=1/2, K=7) provided a reasonably good typing speed of approx 20 WPM.
>
>This mode promises well!
>
>- Nino IZ8BLY
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------------------------------
Date: Mon, 19 Jun 2000 15:21:23 -0500
From: Jeff Kilgore <kilgore@dev.tivoli.com>
Subject: Re: [psk31] Fwd: [hfsig] First PICCOLO 2000 QSO
Anyone know where to find software for Piccolo 2000?
73,
Jeff, KC1MK
Eduardo Jacob wrote:
>
> As Murray or Nino didn't crosspost here I forward it:
>
> >From: "Nino Porcino" <porcino@sysonline.it>
> >Subject: [hfsig] First PICCOLO 2000 QSO
> >Date: Sun, 18 Jun 2000 12:15:56 +0200
> >I'm proud to announce that today me (IZ8BLY) and Murray (ZL1BPU) have made the first Piccolo 2000 QSO! It was a 17,000 Km DX, nice result eh?
> >
> >The new mode showed great advantage over PSK modulation and performed quite error-free with barely audible signals.
> >
> >Among the various combinations the most interesting was: 32-tones MFSK running at 7.8125 baud, spaced 7.8125 Hz each for a total bandwidth of 250 Hz. The use of Varicode and FEC convolutional code (R=1/2, K=7) provided a reasonably good typing speed of approx 20 WPM.
> >
> >This mode promises well!
> >
> >- Nino IZ8BLY
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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> with a text line as follow: unsubscribe psk31 or unsubscribe psk31-digest
>
> More instructions on PSK31 Webpage: http://aintel.bi.ehu.es/psk31.html
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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------------------------------
Date: Mon, 19 Jun 2000 16:20:29 -0400
From: "Robert Lay" <w9dmk@crosslink.net>
Subject: Re: [psk31] 60 Hz hum
Dear Jeff,
You will probably find that a "ground breaker" plug will solve your problem.
Find one of these adapter plugs that takes a 3 pin plug and converts to two
pins plus a green pigtail. Use that adapter for the PC. Do not connect the
ground lug or pigtail to a house-power ground.
The problem is that there is a slight potential difference between the
house-power ground and your shack RF grounds. That potential difference
causes a small ac current to flow in circuitry that preferably would have no
ac currents. Those currents do not have to be very high to cause noticeable
hum because they are flowing in wires that are carrying only microamps of
signal current.
The above procedure works for me, but so do some other solutions, such as
using isolation transformers for all signal lines and using a direct
connection only for the PTT circuit.
>I've been operating PSK31 for about a month now. The txcr is
>an Icom IC-756 and I use the accessory jack with 1:1 audio
>transformers. The schematic I used is located at
>http://www.packetradio.com/sb16rads/ic8acc.gif
>
>Last night I was operating voice and the person I was talking
>to said there was a 60Hz hum in my audio. I shut down
>everything in the shack except for the txcr, but the hum
>was still there.
>
>The last thing I tried was unplugging the DIN plug for my psk31
>interface from the rig. The hum disappeared. What confuses
>me is that my computer was powered off (although it was still
>plugged into the power strip). I didn't get a chance to try it
>with the DIN plug connected to the txcr and the computer
>unpluged from the power strip.
>
>All my radio equipment is connected to an RF ground, but
>the computer isn't. I was wondering if anyone else has
>experienced this problem.
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------------------------------
Date: Mon, 19 Jun 2000 17:35:06 -0400
From: "Robert M. Germeroth" <rgermer@suffolk.lib.ny.us>
Subject: Re: [psk31] Sound Card
I have been using a Compaq 486Dx-66 with 32 Meg Ram for PSK31 for over a
year. I have used the basic program by G3PLX, WinPsk, and DigiPan with no
trouble. You can not run Zakanaka or Logger however.
Bob WB2HTW
At 09:50 AM 6/19/2000 -0600, Gary McDuffie, Sr. wrote:
>On Mon, 19 Jun 2000 07:57:31 -0700, Mike Michon wrote:
>
> > Any idea about what is wrong???
>
>For what it's worth, a 486 won't work well on any of these sound card
>modes. You can get by with it if you use the basic G3PLX program for
>psk, but most of the others are far to processor intense. I finally
>gave up trying to use my 486/100 and got a cheap eMachine 333 that does
>just fine. It only cost me $300 at the time and had everything needed,
>nothing to add.
>
>Gary
>
>ag0n at arrl dot net
>--
>Please notify your ISP if you don't receive this.
>
>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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>with a text line as follow: unsubscribe psk31 or unsubscribe psk31-digest
>
>More instructions on PSK31 Webpage: http://aintel.bi.ehu.es/psk31.html
>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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------------------------------
Date: Mon, 19 Jun 2000 19:57:42 EDT
From: Jkn1olo@aol.com
Subject: [psk31] RIGblaster, PSK31 and Laptops
There have been posts to several news groups and reflectors stating that the
RIGblaster does not work with laptops. This is not true. While the early
version of the RIGblaster had difficulties with audio from 1 particular
laptop this should not be considered an indictment of all laptops or the
RIGblaster. The current version of the RIGblaster takes into consideration
the variation of audio output in the majority of machine. Since the design
change we have not had any complaints of low audio output due to the
attenuate network design.
Invariably the problems have been due to bad audio cable, misadjusted
computer audio setting or attempting to transmit at a frequency outside the
audio band pass of the computer (e.g.: 100hz from DIGIPAN).
If there are any problems with the earlier version there is a easy field
modification. Please feel free to contact me directly for the instructions on
identifying the early models and the fix. You can also see the support page
at www.westmountainradio.com.
73 and thanks for the bandwidth
John Kalotai
N1OLO
West Mountain Radio
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------------------------------
Date: Mon, 19 Jun 2000 21:33:34 -0400
From: "Carl J. Denbow" <ka8jxg@callsign.net>
Subject: Re: [psk31] RIGblaster, PSK31 and Laptops
I can attest to this. I've been using a Rigblaster with my Toshiba 320CDT
Satellite laptop with no problems whatsoever. My rig is a Kenwood TS690S.
Being a new general and new to 20 meters, my biggest problem with getting my
antenna to load up on the proper section of the band! ; - )
73
Carl -- KA8JXG
- ----- Original Message -----
From: <Jkn1olo@aol.com>
To: <psk31@bipt106.bi.ehu.es>; <psk31@qth.net>; <RIGblaster@qth.net>
Sent: Monday, June 19, 2000 7:57 PM
Subject: [psk31] RIGblaster, PSK31 and Laptops
>
>
>
> There have been posts to several news groups and reflectors stating that
the
> RIGblaster does not work with laptops. This is not true. While the early
> version of the RIGblaster had difficulties with audio from 1 particular
> laptop this should not be considered an indictment of all laptops or the
> RIGblaster. The current version of the RIGblaster takes into consideration
> the variation of audio output in the majority of machine. Since the design
> change we have not had any complaints of low audio output due to the
> attenuate network design.
>
> Invariably the problems have been due to bad audio cable, misadjusted
> computer audio setting or attempting to transmit at a frequency outside
the
> audio band pass of the computer (e.g.: 100hz from DIGIPAN).
>
> If there are any problems with the earlier version there is a easy field
> modification. Please feel free to contact me directly for the instructions
on
> identifying the early models and the fix. You can also see the support
page
> at www.westmountainradio.com.
>
>
> 73 and thanks for the bandwidth
>
> John Kalotai
> N1OLO
> West Mountain Radio
>
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>
> More instructions on PSK31 Webpage: http://aintel.bi.ehu.es/psk31.html
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
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------------------------------
Date: Mon, 19 Jun 2000 21:39:57 -0400
From: "Bob Lewis" <aa4pb@erols.com>
Subject: Re: [psk31] 60 Hz hum
> Use that adapter for the PC. Do not connect the
> ground lug or pigtail to a house-power ground.
Dangerous and violates the National Electric Code! That ground wire is
there to keep your PC chassis from becoming hot if something shorts
inside the power supply. If you have a ground problem, fix it by using
transformers to isolate the signal grounds and, if necessary, an opto
isolator to isolate the PTT common - do not lift the safety ground
lead from your equipment.
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End of Psk31 Digest V1 #429
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