[UK-CONTEST] AMTOR it makes sense !

Fri Feb 12 03:10:59 PST 2010

Roger,

BARTG could always put a paper forward to IARU Region 1 via RSGB 
proposing a change in the standard.   This was tried many years ago but 
failed because of the problems with hardware compatibility.   These days 
of course that problem shouldn't exist.

73

Colin, G3PSM

Roger Cooke wrote:
> Hi Alex.
>
>   I was active in 1963 on RTTY with a Creed 7B and worked my first 100+ countries using 
> that machine, accompanied by the 6S auto tape sender, reperf and even a perforator!
> However, I am not advocating using those any more!  I also had the stroboscope to 
> adjust the speed change and eventually ended up with two governors.  AMtor was used for
> quite some time too.
>
>    However, times change. 75 Baud RTTY is about the optimum speed that can be contained
> within the normal 250Hz IF filter bandwidth. It's more than adequate and in my opinion should
> be adopted as an international standard. More Qs, More stations worked in contests in the same
> time, more DX worked by DX-peditions etc.  Most people use N1MM and the like with the usual
> macros ( some of those need attention too! ) so the throughput would be greater within the same
> filters.
>
>  As for CW software, what's that? My decoder is between my ears! 
>
>  
> Regards from Roger, G3LDI
> Swardeston, Norfolk.
>
>
>
>
> ----- Original Message ----
> From: ALEX LISTER <alexcom22 at btopenworld.com>
> To: uk-contest at contesting.com
> Cc: Harriman G4SJX <mike_g4sjx at hotmail.com>; john at jgarner.co.uk
> Sent: Fri, 12 February, 2010 10:42:51
> Subject: [UK-CONTEST] AMTOR it makes  sense !
>
> Neil/ Roger & co
> You must of missed  the delight of running a creed 7 series.
> However a real teleprinter running in the housenot good for domestic harmony..
> I used a strobe to set to 50 bds with 50 HZ ac mains
> Then winding the governor screw 7 1/2 turns for 45 bds.
> Used to use Creed 444,s As made by ITT as data printers @ 75 bds on STC designed large TXE4 exchanges.
> You did not need an alarm bell to know u had a fault just ear defenders !
>
> But yes 75 bds a good idea . Or even 150 ?
> But feel u would cause absolute confusion. Its hard enough guessing speeds with CW software!
>
> More sensible would to run AMTOR in FEC mode for RTTY contests.
> If u want an AMT1 I know of several available ??
> Perhaps instead of PSK we could run "Throb" ?
> If u ever want to do some tests on higher speed RTTY or other data modes let me know.
> Alex G8FCQ
>
> 0753 120 1640
>
> --- @ WiseStamp Signature. Get it now
>
>
>
>
> ________________________________
> From: G3RIR <g3rir at yahoo.com>
> To: uk-contest at contesting.com
> Sent: Friday, 12 February, 2010 9:45:56
> Subject: Re: [UK-CONTEST] CC Data
>
> Why do we stick to 45.5 anyway? Surely 99.9% of RTTY is now computer
> generated so a switch to 75 baud would be easy.
>
> Neil, G3RIR
>
> -----Original Message-----
> From: uk-contest-bounces at contesting.com
> [mailto:uk-contest-bounces at contesting.com] On Behalf Of Roger Cooke
> Sent: 12 February 2010 09:42
> To: Steve GW4BLE; G Wood; uk-contest at contesting.com
> Subject: Re: [UK-CONTEST] CC Data
>
> There is paint drying and then PAINT DRYING!!!
>
> PSK is bad enough in contests.  I am proposing RTTY move to 75 Bauds. Now
> that WOULD liven things up a bit!
>
>
> Regards from Roger, G3LDI
> Swardeston, Norfolk.
>
>
>
>
> ----- Original Message ----
> From: Steve GW4BLE <steve.gw4ble at btconnect.com>
> To: G Wood <woody at gray3vip.plus.com>; uk-contest at contesting.com
> Sent: Thu, 11 February, 2010 17:37:02
> Subject: Re: [UK-CONTEST] CC Data
>
>
>
> Already been suggested Graham; QSP from my Cabrillo file -
>
> SOAPBOX: Another fun session on PSK. How about adding SSTV as a mode too?
>
> ;-)
>
>
> Steve
> GW4BLE
>
>
>
>
> -----Original Message-----
> From: uk-contest-bounces at contesting.com
> [mailto:uk-contest-bounces at contesting.com] On Behalf Of G Wood
> Sent: 11 February 2010 11:47
> To: uk-contest at contesting.com
> Subject: [UK-CONTEST] CC Data
>
> Hi All
>
> Usual struggle with PSK last night. Just got a station tuned in then they
> disappeared. Quite a few times the station reappeared but on a slightly
> different frequency so had retune then they went again before got call, VERY
> frustrating. I think a course on the use of NET and AFC is needed by some
> stations. Ratio RTTY to PSK was 4:1. 28 RTTY 7 PSK. After the finish, while
> my brain was cooling down, I had a ghastly thought, what if the Contest
> Committee had another flash of madness and next year decided to combine SSB
> with SSTV!!!! now there's a thought, oops maybe I've lit the blue touch
> paper.
>
> 73's - Graham G3VIP
>
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