[TenTec] Argo V and digital modes

[Duane Calvin]

Well, strictly speaking, RTTY generated via FSK is a carrier mode, however,
RTTY generated via AFSK is an analog mode and still requires care to
preserve linearity.  This is why many of use prefer FSK to assure a clean
signal. It also usually solves "RF on the audio" problems when running AFSK.
But I digress.

	73, Duane


Duane Calvin, AC5AA
Austin, Texas
www.ac5aa.com  




-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Robert
Sent: Monday, September 22, 2014 9:45 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Argo V and digital modes

Yes, RTTY is a carrier mode much like CW.  PSK is an analog mode as most use
it. Therefore linearity is very important to transmit a good quality signal.


Bob, K4TAX


Sent from my iPhone

> On Sep 22, 2014, at 9:23 AM, Mike Bryce <prosolar at sssnet.com> wrote:
> 
> back in the day, 
> 
> I ran RTTY on HF with a Triton 4.
> 
> You ran it at full bore, keeping the ALC LED just from lighting. 
> 
> The limits were how the power supply could handle the 20 amp draw for 10
minutes or more (running those rtty pictures!) 
> The triton was one of a very small group that could handle full power key
down for hours at at time.
> 
> 
> Mike Bryce, WB8VGE
> the heathkit shop
> SunLight energy systems
> J e e p
> o|||||||o
> 
> 
> 
> 
> 
> 
>> On Sep 22, 2014, at 8:15 AM, Bob McGraw - K4TAX <RMcGraw at Blomand.net>
wrote:
>> 
>> What ever level it takes to keep below the ALC threshold would be the
correct power level.  Same for the  100 watt rigs too.
>> 
>> However, with the Argonaut VI the ALC circuit is of different design and
one can run a full 10 watts.
>> 
>> In all cases, do not have any Speech Processing engaged.
>> 
>> 73
>> Bob, K4TAX
>> 
>> 
>> 
>> 
>> ----- Original Message ----- From: <kd2e at comcast.net>
>> To: <tentec at contesting.com>
>> Sent: Sunday, September 21, 2014 9:43 PM
>> Subject: [TenTec] Argo V and digital modes
> 
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
> 

_______________________________________________
TenTec mailing list
TenTec at contesting.com
http://lists.contesting.com/mailman/listinfo/tentec