[MRCG] Clatternet Schedule for Sunday 8/3/2014 20:30 TONIGHT

[boatanchor at martasystems.com]

Mark -

Would you please send a schedule with time & freqs for Sunday's 40m tryout ?

Thanks
JC

btw - Friday traffic E.T. was 2:42 KONT->KSZP. Almost 1hr more than book 
value.


-----Original Message----- 
From: Mark J. Blair
Sent: Sunday, August 03, 2014 17:55
To: MRCG Mailing List List
Cc: Jim Falls
Subject: [MRCG] Clatternet Schedule for Sunday 8/3/2014 20:30 TONIGHT

Folks, Tim N6CC and I plan to try another Clatternet tonight at 8:30 PM. 
Frequency will be the same as last time, though we might experiment with 
different bands/times in the future:

This setup was chosen for best compatibility with the military gear likely 
to be used on Clatternet.

Mode:
* RTTY, 5 bit Baudot code, 45.45 baud
* 850 Hz shift
* Mark low (this is opposite of normal ham band convention)

Actual transmitted frequencies:
* Mark  3601.575 kHz (+/- QRM in 1 kHz steps)
* Space 3602.425 kHz

Tune a PRC-47 or GRC-106 as follows:
* Indicated freq 3600 kHz. USB, of course.
* Mark tone  1575 Hz
* Space tone 2425 Hz
* Centered around 2000 Hz

For a modern SSB rig with a sound card modem, this setup might work better:
* Indicated freq 3600.5 kHz USB
* Mark tone  1075 Hz
* Space tone 1925 Hz
* Centered around 1500 Hz

A true FSK rig like a GRC-46, GRC-26, etc. would tune to 3601.575 kHz (LOL! 
Just zero-beat one of the SSB-based rigs on the net!).

I'll be using a Yaesu FT-450D tonight, with a SigaLink USB interface and 
running fldigi on my Mac. Getting my vintage RTTY gear running is on my long 
list of to-dos!

-- 
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/

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