[RTTY] Fw: ARLB006 NTIA: No Objection to Additional Data Modes on60 Meters

[Ron Kolarik]

Uhh, doesn't the K3 use a 15khz IF? If you use the FSK keying input on it
you're just generating 2 audio tones in DSP....AFSK controlled by the
firmware. A lot of the modern rigs do the same thing regardless of what
the keying input is marked......FSK=keyed internal audio tones.

Ron
K0IDT


----- Original Message ----- 
From: "Joe Subich, W4TV" <lists at subich.com>
To: "Jay WS7I" <ws7ik7tj at gmail.com>; "RTTY" <rtty at contesting.com>
Sent: Thursday, March 29, 2012 7:47 PM
Subject: Re: [RTTY] Fw: ARLB006 NTIA: No Objection to Additional Data Modes on60 
Meters


>
>> Especially true since for at least 20 years no radio that I know of
>> does actual FSK in any case.
>
> The K3 does true FSK ... it's done using DSP to create the signal
> directly at the IF.
>
> 73,
>
>    ... Joe, W4TV
>
>
> On 3/29/2012 7:57 PM, Jay WS7I wrote:
>> Especially true since for at least 20 years no radio that I know of does
>> actual FSK in any case.  Its just AFSK converted.  Last true FSK that I
>> used was back in 1986 with Hal WA7EGA and that resulted in an actual
>> phone call from the FCC during some contest.  Seems the fine FSK in the
>> old Kenwood Twins (home brew of course) had a little or maybe they
>> thought a major problem as we were on 14.088 with a birdie on Air Force
>> MARS Transcon which is just below the edge of the band.
>>
>> Hal took that fine FSK'd set of Twins to the Hamfest and gave them
>> away.  He then got with the semi-modern world and launched an Icom-751
>> which I had one of and of course it was FSK or rather AFSK converted.
>> Even those we had to tune prior to every contest to 170 Hz as they
>> shifted during the contest.
>>
>> That's like saying the modern soundcard works better than my iron.
>> ST-8000.  Only one person has one program that is better than my ST-8000
>> and that is Chen.  His might even be better.  (And you need not bring up
>> RITTY as it doesn't work with Windows 7). So here I sit with a MacBook
>> and Chen's program busily receiving along with my ST-8000 on a PC.
>>
>> Look out for cocoaModem III or should I perhaps say "New cocoaModem".
>>
>> Heh heh.
>>
>> Jay
>>
>>
>>
>> On 3/29/2012 4:37 PM, James C. Hall, MD wrote:
>>> Ohhhhh, this should be interesting. What technological advantages are there
>>> to AFSK ?? It is SOOoooo much easier to do FSK IMHO. Radios such as the K3
>>> do make it easy with either FSK or AFSK. But what "technological advantages"
>>> exist ??
>>>
>>> Good thread.
>>>
>>> 73, Jamie
>>> WB4YDL
>>>
>>> -----Original Message-----
>>> From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com] On
>>> Behalf Of Kok Chen
>>> Sent: Thursday, March 29, 2012 6:21 PM
>>> To: RTTY Reflector
>>> Subject: Re: [RTTY] Fw: ARLB006 NTIA: No Objection to Additional Data Modes
>>> on60 Meters
>>>
>>>
>>> On Mar 29, 2012, at 4:13 PM, Joe Subich, W4TV wrote:
>>>
>>>> AFSK is the RTTY mode for technological novices ... those who do not
>>>> know how to operate their transceivers in the way the manufacturer
>>>> designed them to operate.
>>> I would like you to substantiate that statement, Joe.
>>>
>>> I haven't transmitted using FSK for years now.  There is so many more
>>> technological advantages to using AFSK.
>>>
>>> 73
>>> Chen, W7AY
>>>
>>> _______________________________________________
>>> RTTY mailing list
>>> RTTY at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>
>>> --
>>> This message has been scanned for viruses and dangerous content by
>>> MailScanner, and is believed to be clean.
>>>
>>> _______________________________________________
>>> RTTY mailing list
>>> RTTY at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rtty
>>
>> _______________________________________________
>> RTTY mailing list
>> RTTY at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rtty
>>
> _______________________________________________
> RTTY mailing list
> RTTY at contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty