[RTTY] REMOVE

Wed Apr 26 13:34:41 EDT 2017

      From: "rtty-request at contesting.com" <rtty-request at contesting.com>
 To: rtty at contesting.com 
 Sent: Wednesday, April 26, 2017 9:32 AM
 Subject: RTTY Digest, Vol 172, Issue 23

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Today's Topics:

  1. TS 590s on RTTY (Dave Barr)
  2. Dayton RTTY Contest Dinner (Ed Muns)
  3. Re: TS 590s on RTTY (K6UFO Mark Aaker)
  4. NS RTTY this Thursday (Ken K6MR)
  5. MMTTY Tx Tab settings (Ktfrog007 at aol.com)
  6. Re: MMTTY Tx Tab settings (Joe Subich, W4TV)

----------------------------------------------------------------------

Message: 1
Date: Tue, 25 Apr 2017 16:54:00 -0400
From: Dave Barr <recordupe at verizon.net>
To: rtty at contesting.com
Subject: [RTTY] TS 590s on RTTY
Message-ID: <ad46753d-1400-a93d-1124-4d970d82ab5e at verizon.net>
Content-Type: text/plain; charset=utf-8; format=flowed

I am planning to help a local ham get his TS 590S on digital.  I haven't 
seen the rig yet, but have looked at the manual on line, which seems 
Kenwoodishly lacking the needed details.  My questions:

Can the rig run RTTY with only a usp-usp cable between the rig and 
computer, which the manual hints at?
Is TS 590 FSK true FSK or is it internally generated AFSK?
If AFSK is desired, must it be run through the 13pin din connection?
Are all filters available in all modes?
I prefer not using interfaces, other than small transformer-isolation 
boards and ptt connection.

Thanks for any advice.  I have been spoiled by my K3.

73, Dave, K2YG

------------------------------

Message: 2
Date: Tue, 25 Apr 2017 15:22:42 -0700
From: "Ed Muns" <ed at w0yk.com>
To: <rtty at contesting.com>
Subject: [RTTY] Dayton RTTY Contest Dinner
Message-ID: <5CEACB254BF74283A2AB0C8AE074D320 at h81420t>
Content-Type: text/plain;    charset="US-ASCII"

The Dayton Hamvention is rapidly approaching and there is still room left in
the informal RTTY Contest Dinner.  Here are the details ...

When: Thursday, 18 May, 6pm

Where: Spaghetti Warehouse, 36 West 5th Street (two blocks from Crowne Plaza
hotel and three blocks from Convention Center parking garage)

What: Informal dinner with RTTY contesting friends (or, whomever)

Menu: choice of:
      - Spaghetti & Meatballs
      - Incredible 15-Layer Lasagne
      - Fettuccini Alfredo
      - Four-Cheese Manicotti
      - Grilled Chicken Caesar Salad
      Includes crisp fresh garden salad, freshly baked sourdough bread
      and your choice of soft drink or tea

Cost: $21

RSVP: Ed W0YK with check or feeless (to me) PayPal transaction to
w0yk at msn.com.  Mailing address: POB 1877, Los Gatos, CA 95031-1877

(Feeless PayPal transactions are done by choosing "Friends and Family" and
using funds already in your PayPal account or cash drawn from your bank
account.  Any transaction type that uses credit cards will need to be for
$24 to cover the fee I will be charged.  I can also process credit cards
directly for $24.) 

A banquet room is reserved that comfortably holds 55 people, so the first 54
to RSVP with payment will get a seat.

"Program": Hank W6SX will moderate a round of introductions with each of us
sharing a favorite RTTY operating tip (hint, hint).  Stu K6TU will give us
an update on the Makrothen RTTY Contest.  Dennis W1UE will share how he sets
up and operates SO2R.

Raffle: If someone would like to put together a prize raffle, that's fine,
too.  I can provide vendor contacts that Fred WW4LL and I used a few years
ago.  Contact me if you'd like to help out.

Audio-Visual request:  If you have a PC projector and screen you can get to
the dinner that would be nice for a couple of the presenters.

Hope to see you in Dayton!

73,
Ed W0YK

------------------------------

Message: 3
Date: Wed, 26 Apr 2017 02:08:14 +0000 (UTC)
From: K6UFO Mark Aaker <k6ufo at arrl.net>
To: "rtty at contesting.com" <rtty at contesting.com>
Subject: Re: [RTTY] TS 590s on RTTY
Message-ID: <399083402.3743397.1493172494172 at mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

Hi Dave, I own a TS-590s and operate RTTY and digital modes. 
>Can the rig run RTTY with only a usp-usp cable... 
Yes, the USB port provides rig control (serial port) and an audio device. You can 
run AFSK or other audio digital modes without any more interface. 

>Is TS 590 FSK true FSK... 
For FSK you must use the 13-pin connector and send a shift signal. Works fine, I 
don't know what it might be doing inside the radio. I've never had a problem. 

> If AFSK is desired, must it be run through the 13pin din connection? 
AFSK can be through the USB audio device, or through the 13 pin connector. 
FSK is through the 13 pin connector. 

>Are all filters available in all modes? 
No, FSK or DATA modes have a smaller selection of available filter widths, compared 
say to CW. And some noise reduction and other features are different or not available. 
But, I've never found it to be a big problem or overly limited my operating. 

Mark Aaker K6UFO

------------------------------

Message: 4
Date: Wed, 26 Apr 2017 05:34:17 +0000
From: Ken K6MR <k6mr at outlook.com>
To: "RTTY at contesting.com" <RTTY at contesting.com>,
    "cq-contest at contesting.com"    <cq-contest at contesting.com>, NS
    <nccc-blue at kkn.net>
Subject: [RTTY] NS RTTY this Thursday
Message-ID:
    <CY4PR13MB1254148B5F72D10684B2D5769E110 at CY4PR13MB1254.namprd13.prod.outlook.com>

Content-Type: text/plain; charset="Windows-1252"

Greetings Diddlers:

Quite the active group last week with high scores all around. Even WD0T was back from basement rehab work!  The weekend BARTG 75 baud Sprint was a bit thin out west here but I see a few Midwest/east coast guys worked a few.  Looks like the upcoming weekend has a Digital test on 10 meters (not going to hold my breath on that one), so this Thursday may be your only shot at a little RTTY activity.

So fire up the radios and join us for some keyboarding Qs.

Here are the details for our Thursday evening ditty:
Friday,  28 Apr 2017, 0145Z - 0215Z (Thursday, 27 Apr 2017 in NA)
-- 1845 - 1915 PDT  (no reminders, everyone is DST acclimated)
-- 2145 - 2215 EDT
-- (others in-between those two)
-- 160: 1805 and up (Last two minutes seem to be popular?)
-- 80/40/20/15 +80kHz up from the band edge  (check 20 at the start just in case)
-- Same band dupes ok after 1 intervening Q.
-- 1 kHz QSY rule, otherwise standard Sprint rules
-- Mults per band
-- 100W power limit

Please visit http://www.ncccsprint.com/rttyns.html for complete rules and links to other info. If you find any problems with the web pages, please let me know so we can get them fixed.
If you would like to receive all the latest info about NS as well as a have a place for comments and questions, sign up for the NS mailing list:  http://www.kkn.net/mailman/listinfo/nccc-blue

Report scores to 3830scores.com, and join us at 0300Z on 3610 kHz (+/- a few for ongoing groups) for comments and questions (and dinner menus).

Diddle diddle,

Ken K6MR

------------------------------

Message: 5
Date: Wed, 26 Apr 2017 09:00:21 -0400
From: Ktfrog007 at aol.com
To: lists at subich.com, ed at w0yk.com, rtty at contesting.com
Subject: [RTTY] MMTTY Tx Tab settings
Message-ID: <2544d1.4e86bdb0.4631f3e5 at aol.com>
Content-Type: text/plain; charset="US-ASCII"

I'd like some info on setting parameters in the TxBPF/TxLPF box in  the 
MMTTY TX Tab section .  

I can't find good documentation in the MMTTY help file.  There has  been 
some discussion here recently.

The parameters and their apparent default settings (from  most Profiles) 
are:  

Tx BPF check  box              [default  = Selected?]
Tap (range 24-512)          [default = 48]
Tx LPF check  box                [default  = not Selected]
Freq in hz (range 40-600)    [default = 100]

What do each of these do and what are the optimum settings?

Thanks & 73,
Ken, AB1J

In a message dated 2017-04-25 2:18:13 P.M. Coordinated Universal Tim,  
lists at subich.com writes:

On  4/25/2017 10:04 AM, Ed Muns wrote:
>  Set MMTTY taps to 512  too.

AND *check* TxBPF (TX tab) it is not checked by default.
TxBPF  is not needed for FSK and increases the processor
load (for marginal  systems) on AFSK.

You will also want to set Freq (bandwidth) to 600 Hz  (or
enter 400 Hz manually).  300 Hz is too narrow with  512
taps.

73,

... Joe, W4TV

On  4/25/2017 10:04 AM, Ed Muns wrote:
> AFSK on the K3/K3S is fine with low  tones if the radio AFSK TX filter
> is enabled. Set MMTTY taps to 512  too. Make sure to set the same
> audio  tone pair in both the radio  and MMTTY.
>
> 73,
> Ed  W0YK
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------------------------------

Message: 6
Date: Wed, 26 Apr 2017 09:25:44 -0400
From: "Joe Subich, W4TV" <lists at subich.com>
To: RTTY <rtty at contesting.com>
Subject: Re: [RTTY] MMTTY Tx Tab settings
Message-ID: <52210810-7fac-34fd-2940-5eea277384ee at subich.com>
Content-Type: text/plain; charset=utf-8; format=flowed

 > What do each of these do and what are the optimum settings?
 > Tx BPF check  box              [default  = Selected?]

Enables a bandpass filter in the AFSK output.  The bandpass filter
removes distortion products and harmonics.

 > Tx LPF check  box                [default  = not Selected]

Enables a lowpass filter in the AFSK output.  The lowpass filter
removes harmonics, it does not impact distortion or switching
transients.

Note: these filters only act on the audio generated by the sound
card.  They do not remove distortion/harmonics generated by
running the sound card at maximum output level (clipping in the
analog output) or over driving the input of the transceiver. Nor
do they remove hum caused by improper grounding/bonding of the
computer soundcard, interface, and transceiver.

 > Tap (range 24-512)          [default = 48]

Controls the steepness of the filter skirts.  Full details is an
in depth topic on the mathematics of digital signal processing.

 > Freq in hz (range 40-600)    [default = 100]

Controls the width of the bandpass filter.  Note: with high tap
numbers (steep sided filters) the bandwidth should be *greater than*
400Hz to prevent loss of "sharpness" in the mark/space transitions.

73,

    ... Joe, W4TV

On 4/26/2017 9:00 AM, Kermit (aka Ken) via RTTY wrote:
> I'd like some info on setting parameters in the TxBPF/TxLPF box in  the
> MMTTY TX Tab section .
>
> I can't find good documentation in the MMTTY help file.  There has  been
> some discussion here recently.
>
> The parameters and their apparent default settings (from  most Profiles)
> are:
>
> Tx BPF check  box              [default  = Selected?]
> Tap (range 24-512)          [default = 48]
> Tx LPF check  box                [default  = not Selected]
> Freq in hz (range 40-600)    [default = 100]
>
> What do each of these do and what are the optimum settings?
>
> Thanks & 73,
> Ken, AB1J
>
>
>
> In a message dated 2017-04-25 2:18:13 P.M. Coordinated Universal Tim,
> lists at subich.com writes:
>
> On  4/25/2017 10:04 AM, Ed Muns wrote:
>>  Set MMTTY taps to 512  too.
>
> AND *check* TxBPF (TX tab) it is not checked by default.
> TxBPF  is not needed for FSK and increases the processor
> load (for marginal  systems) on AFSK.
>
> You will also want to set Freq (bandwidth) to 600 Hz  (or
> enter 400 Hz manually).  300 Hz is too narrow with  512
> taps.
>
> 73,
>
> ... Joe, W4TV
>
>
> On  4/25/2017 10:04 AM, Ed Muns wrote:
>> AFSK on the K3/K3S is fine with low  tones if the radio AFSK TX filter
>> is enabled. Set MMTTY taps to 512  too. Make sure to set the same
>> audio  tone pair in both the radio  and MMTTY.
>>
>> 73,
>> Ed  W0YK
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------------------------------

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------------------------------

End of RTTY Digest, Vol 172, Issue 23
*************************************