Hi Russell,
Not sure (I am not the lawyer in my family:) but suspect due to its signal rate
it is legal. I asked the question on the HF JT65 board but no definitive
response. ISCAT is 23 baud at 1500 Hz and JTMS is 1500 bps and the bandwidth
2250 Hz. You are correct that it may be more of an issue as to where in the
band you were transmitting more so than the legality of its usage. I am not
sure of the advantage of ISCAT on HF, aside from perhaps on a scatter path to
10/12 meters and it is down 10 dB or so in sensitivity from JT65/JT8/JT2/JT4
modes; albeit uses a 30 second sequence like JT6M. I have only previously seen
it used on 6 meters and above. Of course some people simply do not like the
wider modes in general, hence the inevitable controversy.
73,
Bill N9DSJ
--- In [email protected], Russell Blair <russell_blai...@...> wrote:
>
> Bill, Tnx for the responce to my question, I was running WSJT8 (ISCAT) on
> 14076
> and I had a station tell me that that mode exceeded the bandwidth on HF, well
> after looking at the Doctumation its only 1.5K and looking at (Contestia,
> MT63
> and Olivia) all can go up to 2K, So is ISCAT to wide? or was it I was just on
> the wrong part of 20m. Is it onlt to be used on 6m?.
>
>
> Russell NC5O
> Â 1- Whoever said nothing is impossible never tried slamming a revolving door!
> 2- A government big enough to give you everything you want, is strong enough
> to
> take everything you have.
>
> - Gerald Ford
>
>
> " IN GOD WE TRUST "
>
>
> Russell Blair (NC5O)
> Skype-Russell.Blair
> Hell Field #300
> DRCC #55
> 30m Dig-group #693
> Digital Mode Club #03198
>
>
>
>
> ________________________________
> From: n9dsj <n9...@...>
> To: [email protected]
> Sent: Thu, July 22, 2010 10:54:29 AM
> Subject: [digitalradio] Re: Question on bandwidth on HF
>
> Â
>
> Which mode within the WSJT8 Suite?
>
> Bill N9DSJ
>
