Hi Roger,
ARRL was as confused as many other hams were by the new rules. That
was understandable, considering how poorly written and
self-contradictory they are.
But, in the case of the 500Hz bandwidth limit, the FCC has already
published guidelines in the RO to aid us in interpretation of
expeditionradio wrote:
Hi Roger,
ARRL was as confused as many other hams were by the new rules. That
was understandable, considering how poorly written and
self-contradictory they are.
But, in the case of the 500Hz bandwidth limit, the FCC has already
published guidelines in the
And how does this affect Olivia and MT-63? Since these modes were
presumably included in the original definition of Data are they
unaffected as well--i.e. 1Khz Olivia and MT-63 would be permitted
below 30 Mhz?
de Roger W6VZV
Hi Roger,
1kHz and 2kHz bandwidth Olivia or MT63 are not
I disagree. You can send images as long as the bandwidth is 500 Hz
or less. That is what J2C is all about. A transmission can have
more than one emissions designator as you have pointed out. You may
start by sending J2B, then during the course of the QSO switch to J2C
without ever changing
Roger,
I will let Bonnie respond, but let me add my 2 cents. Paragraphs 15
through 19 address the rule changes which allow image
emissions. Paragraph 19 has most of us confused because while it
says we will revise our rules to clarify that the 500 Hz limitation
applies only to the emission
Bonnie,
Why can't you use bandwidths of 500 or less in Olivia or MT63 to send
images in the narrow subbands? My copy of gMFSK allows setting
parameters of both protocols to values that should meet the
requirements of the new FCC rules. I recognize MT63 may not have an
occupied bandwidth of 500
Jim,
Yes, MT3 at 500Hz bandwidth may have an occupied bandwidth greater
than 500 Hz. My spectrum analyzer has a hard time with bandwidths
less than 500 Hz. I used to not have that problem with it, but I
have changed something. I will have to check. I went through the
resolution bandwidth
Roger, I read what Bonnie quoted , it was in the FCC regs that were
published several weeks ago prior to being included in the Federal
Registrar. I assume the same language made it to the version that the
Federal Registrar published.
Andy, K3UK.
