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

[Chuck McClurg]

Guys,

I am using a R-390 and an old PK-232 unit for receiver with my 3996Kc 
antenna.  I can copy Mark about 75% and Tim about 10-15% here in Carson 
City,NV.

I think I will get out my CV-89 and see if that will do any better ! !

Chuck

P.S. now all I have to do is remember where I put all the bloody 
cables.......................................

----- Original Message ----- 
From: "Jim Falls" <radio-tuber at att.net>
To: "Mark J. Blair" <nf6x at nf6x.net>
Cc: "West Coast Military Radio Collectors Group" <mrcg at mailman.qth.net>
Sent: Sunday, August 03, 2014 7:37 PM
Subject: Re: [MRCG] Clatternet Schedule for Sunday 8/3/2014 20:30 TONIGHT


> Picking up 5551.575 mark tone only. No decode yet.
>
> Cheers!
> Jim K6FWT
> CBLA #37
>
>> On Aug 3, 2014, at 19:26, "Mark J. Blair" <nf6x at nf6x.net> wrote:
>>
>> UPDATE! It was pointed out to me that the frequency I picked is just over 
>> the digital sub-band edge. So, we'll QSY 50 kHz lower this evening. We 
>> can discuss a better frequency later if that's not an optimum one for any 
>> reason.
>>
>> Updated announcement:
>>
>> Folks, Tim N6CC and I plan to try another Clatternet tonight at 8:30 PM.
>>
>> 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  3551.575 kHz (+/- QRM in 1 kHz steps)
>> * Space 3552.425 kHz
>>
>> Tune a PRC-47 or GRC-106 as follows:
>> * Indicated freq 3550 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 3550.5 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 3551.575 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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