I'm not sure why it would have to be tweeked for HF as the program likely 
doesn't care if it is listening to a signal on 2M, 70CM, 1.2GHZ or 40 meters 
lol.
I suspect the tweek was done in the user interface to allow selection and 
show correct frequencies/bands etc.
Either way, it sounds interesting.
What software is being recommended for JT65 decoding?

73
Colin, V A6BKX
----- Original Message ----- 
From: "Doug Payne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, July 02, 2012 8:55 PM
Subject: Re: Any Success using JT65-HF?


> Lou is correct.I didn't know it was used on HF either,  until I read the
> article in May QST. It certainly seems promising. It makes me wonder about
> the differences between JT65 and JT65-HF. The software author says it is
> JT65 tweaked for use on HF, but doesn't go into details.
>
> I'll play around with this sometime this week and let you all know what I
> discover.
> --Doug, AC7T
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Lou Kolb
> Sent: Monday, July 02, 2012 11:37 AM
> To: [log in to unmask]
> Subject: Re: Any Success using JT65-HF?
>
> Jt65 is like psk31 in that it's another digital mode.  I've never had any
> experience with it but the word is it can detect signals inaudible to the
> human ear.  Signals that are well below the noise level.  I hadn't known
> that there was an HF version of it.  Usually, it's used on VHF for moon
> bounce work.
> Lou Kolb
> Voice-over Artist:
> Radio/TV Ads, Video narrations
> Messages On-hold:
> www.loukolb.com
> ----- Original Message -----
> From: "Harry Brown" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, July 02, 2012 2:29 PM
> Subject: Re: Any Success using JT65-HF?
>
>
>> Hi Doug,
>> What is Jt-65?
>> Is that like psk31?
>> They say with psk31, even the weakest stations are heard!
>> Trippy, ac8s
>>  ----- Original Message -----=20
>>  From: Doug Payne=20
>>  To: [log in to unmask]
>>  Sent: Sunday, July 01, 2012 10:49 PM
>>  Subject: Any Success using JT65-HF?
>>
>>
>>  Hi Fellow-Listers,
>>
>>  =20
>>
>>  Have any of you had success using the JT65-HF software? I just read a
>> = short  article about this mode in May 2012 QST, and it sounds like I
>> may be = able to  use this mode effectively, even with my modest HF
>> setup. Of course, = that  depends on the accessibilty of the software,
>> among other things. I am  interested in hearing your experiences.
>> Thanks.
>>
>>  =20
>>
>>  --Doug, AC7T
>