I think that would be the safe and best way--think we need to petition
FCC to expand rtty to 3620 would be a great help, for all contests , i
would think 73 john w8wej
On 10/17/2014 19:53, Ed Muns wrote:
Another alternative for working JAs between 3599 and 3512 kHz, is to work
split. Then both stations can reside well within their legal band segments.
Ed W0YK
----------------------------------------------------------------
Bill W6WRT wrote:
Antennas on 80 meters can be a problem, SWR-wise. If your antenna
covers 3520-3530 then you should probably operate there. But not all
antennas do and the higher segment may be a better option.
In the higher segment mentioned above, US hams can transmit only
within a 1 kHz segment: 3599 to 3600 kHz. Be careful with this. Most
of us using FSK have transmitters that show the mark frequency, so you
should put the mark slightly below 3600. That way the space frequency
will be 170 Hz down from that, which allows the JA's to reply on your
frequency and still be within their segment. Allowing for sidebands, I
would recommend US stations go no higher than 3599.900 for the mark
freq.
Another consideration is that if US stations have their mark freq at
3599.170 or below, the US station will be legal but the JA station
will not. Strictly speaking, because of sidebands you should be even
higher than that. I would suggest a mark freq of 3599.300 as a minimum
and a bit higher would be even better just to be safe. I don't know
how picky the JA authorities are about sidebands, but better safe than
sorry.
Folks using AFSK need to do the math VERY carefully!
I'll be using 3599-3600 myself. Hope to see you there.
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4765 / Virus Database: 4040/8408 - Release Date: 10/17/14
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|