[RTTY] RTTY] FSK vs AFSK

[AD5VJ Bob]

Ok got that part. (I think)

Now when I switch over to MMTTY I use the RTTY mode on my IC-775. 

So does that mean that I am sending FSK on the MMTTY? 

And then I use USB-D when using MMVARI. So then I would be sending AFSK.

Are those two statements accurate?

  73 fer nw,
Bob AD5VJ(AAR6VM)
http://www.ad5vj.com/

Member CTDXCC
10X# 37210, FP#-1141
SMIRK#-5177, RARS #-149
 

> -----Original Message-----
> From: rtty-bounces at contesting.com 
> [mailto:rtty-bounces at contesting.com] On Behalf Of Art Searle W2NRA
> Sent: Thursday, September 07, 2006 9:53 PM
> To: rtty at contesting.com
> Subject: Re: [RTTY] RTTY] FSK vs AFSK
> 
> Hi Bob,
> 
> MMVARI on does RTTY in AFSK.  FSK is not supported.
> 
> Excerpt from the EMMVARI.TXT file (note last line):
> 
> * RTTY implemented in MMVARI are:
> 	- 170Hz shift. It can be changed by macro command
> 	 <%TxShift...>, <%RxShift...>.
> 	- Carrier frequency is the center frequency
> 	- RTTY-L for LSB (default) and RTTY-U for USB (reverse)
> 	- 5-bit BAUDOT S-BELL only
> 	- UOS on the RX side is ON. It can be changed
> 	 by macro command <%UOS=ON/OFF/ONOFF>.
> 	- UOS on the TX side is always ON.
> 	- LTR diddle is always engaged. It can be changed
> 	 by macro command <%DIDDLE=BLK/LTR>.
> 	- AFSK only (no FSK support).
> 
> 73 Art W2NRA
> 
> 
> Date: Thu, 7 Sep 2006 21:21:38 -0500
> From: "AD5VJ  Bob" <rtnmi at sbcglobal.net>
> Subject: [RTTY] FSK vs AFSK
> To: "'RTTY List'" <rtty at contesting.com>
> Message-ID: <009601c6d2ed$83cdc2e0$6401a8c0 at D9FBHB71>
> Content-Type: text/plain;	charset="us-ascii"
> 
> I am wanting to use FSK for my RTTY mode and of course AFSK 
> for PSK, ect.
> 
> Can someone tell me since I have the system set up with 
> MMVARI and MMTTY how I can know for sure that when I switch 
> over to MMTTY that it is sending FSK vs AFSK like MMVARI does?
> 
> I think I am sending AFSK from MMVARI and FSK from MMTTY but 
> am not sure.
> 
> I do know that:
>  when sending with MMVARI and I adjust the MIC drive it makes 
> a difference on the ALC meter
> 
>  but when using MMTTY the MIC drive makes no difference on 
> the AFC only adjusting the output power makes a difference.
> 
>   73 fer nw,
> Bob AD5VJ(AAR6VM)
> http://www.ad5vj.com/
> 
> Member CTDXCC
> 10X# 37210, FP#-1141
> SMIRK#-5177, RARS #-149
> 
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