https://www.6v6.co.uk/vcomp/pages/hurricane.htm
The kids (grown and with kids of their own) gave me one-of-the-above
for Christmas. First (and preliminary) report:
Although I asked only for the basic model, I received the blue-tooth
enabled version. (snip) Guys and gals: Here is a viable, fully frequency-agile AM transmitter that is NOT from the Pacific rim, is
well made and works right out of the box at a reasonable price.
Peter Wieck Melrose Park, PA
What is the wattage/range on the transmitter, and is it within FCC
limits? If not, I'm sure it could be adjusted down.
What is the wattage/range on the transmitter, and is it within FCCCompliant with FCC Part 15 rules. (US Only)
limits? If not, I'm sure it could be adjusted down.
From the product information.
Peter Wieck
Melrose Park, PA
Further research shows it to be 100 mW (LPAM) maximum output. The same
as the SSTRAN units. The difference is that I do not know whether it is adjustable as with the SSTRAN units. I will check on that. That does
not change the fact that an (unapproved) antenna may well extend the
range.
Peter Wieck Melrose Park, PA
On Wed, 04 Jan 2023 10:10:14 -0800, pf...@aol.com wrote:
Further research shows it to be 100 mW (LPAM) maximum output. The same
as the SSTRAN units. The difference is that I do not know whether it is adjustable as with the SSTRAN units. I will check on that. That does
not change the fact that an (unapproved) antenna may well extend the range.
Peter Wieck Melrose Park, PAThe FCC rule is 100mW INPUT, not output. So the output will be more like 50mW, 80 at best. Also, the maximum allowed length of the antenna PLUS ground is 10 feet.
--
Jim Mueller wron...@nospam.com
On Thursday, January 5, 2023 at 9:43:52 PM UTC-5, Jim Mueller wrote:
On Wed, 04 Jan 2023 10:10:14 -0800, pf...@aol.com wrote:
Further research shows it to be 100 mW (LPAM) maximum output. The same as the SSTRAN units. The difference is that I do not know whether it is adjustable as with the SSTRAN units. I will check on that. That does
not change the fact that an (unapproved) antenna may well extend the range.
Peter Wieck Melrose Park, PAThe FCC rule is 100mW INPUT, not output. So the output will be more like 50mW, 80 at best. Also, the maximum allowed length of the antenna PLUS ground is 10 feet.
socket to the AC panel's ground?--
Jim Mueller wron...@nospam.com
I don't understand the ground length. If the transmitter is 10' away from a ground rod or cold water pipe, does that mean an antenna can't legally be used? What if the third prong of the AC socket is used, do we have to consider the distance from the
On Monday, January 23, 2023 at 10:42:09 AM UTC-5, Guy Patterson wrote:
On Thursday, January 5, 2023 at 9:43:52 PM UTC-5, Jim Mueller wrote:
On Wed, 04 Jan 2023 10:10:14 -0800, pf...@aol.com wrote:I don't understand the ground length. If the transmitter is 10' away
Further research shows it to be 100 mW (LPAM) maximum output. TheThe FCC rule is 100mW INPUT, not output. So the output will be more
same as the SSTRAN units. The difference is that I do not know
whether it is adjustable as with the SSTRAN units. I will check on
that. That does not change the fact that an (unapproved) antenna
may well extend the range.
Peter Wieck Melrose Park, PA
like 50mW, 80 at best. Also, the maximum allowed length of the
antenna PLUS ground is 10 feet.
--
Jim Mueller wron...@nospam.com
from a ground rod or cold water pipe, does that mean an antenna can't
legally be used? What if the third prong of the AC socket is used, do
we have to consider the distance from the socket to the AC panel's
ground?
I will intuit an answer here. In the original SSTRAN literature, the
antenna came with a "counterpoise" that when run along the ground became
part of the total antenna length, as it was not actually grounded. In
their Base-Loaded antenna instructions, a true ground had to be
provided,. so the 'counterpoise' was not part of that developed length,
the entirety could be dedicated to the antenna. Keep in mind that when I
set up just such an antenna overseas, its base was 10 meters up, and I
ran #6 solid copper to a 12' ground rod - 12' because that put it in
ground water. The antenna itself was trimmed to the appropriate length
for the chosen frequency. It covered 80 acres nicely, but for the stucco-on-mesh houses which were pretty effective Faraday cages.
So, Antenna + Counterpoise may not exceed the Part-15 compliant length. Antenna + Ground, one may ignore the ground as by its very nature, it
will be many feet/inches/meters longer than the antenna in very nearly
every case.
Peter Wieck Melrose Park, PA
On Tue, 24 Jan 2023 10:10:13 -0800, pf...@aol.com wrote:
On Monday, January 23, 2023 at 10:42:09 AM UTC-5, Guy Patterson wrote:
On Thursday, January 5, 2023 at 9:43:52 PM UTC-5, Jim Mueller wrote:
On Wed, 04 Jan 2023 10:10:14 -0800, pf...@aol.com wrote:I don't understand the ground length. If the transmitter is 10' away
Further research shows it to be 100 mW (LPAM) maximum output. TheThe FCC rule is 100mW INPUT, not output. So the output will be more
same as the SSTRAN units. The difference is that I do not know
whether it is adjustable as with the SSTRAN units. I will check on
that. That does not change the fact that an (unapproved) antenna
may well extend the range.
Peter Wieck Melrose Park, PA
like 50mW, 80 at best. Also, the maximum allowed length of the
antenna PLUS ground is 10 feet.
--
Jim Mueller wron...@nospam.com
from a ground rod or cold water pipe, does that mean an antenna can't
legally be used? What if the third prong of the AC socket is used, do
we have to consider the distance from the socket to the AC panel's
ground?
I will intuit an answer here. In the original SSTRAN literature, the antenna came with a "counterpoise" that when run along the ground became part of the total antenna length, as it was not actually grounded. In
their Base-Loaded antenna instructions, a true ground had to be
provided,. so the 'counterpoise' was not part of that developed length,
the entirety could be dedicated to the antenna. Keep in mind that when I set up just such an antenna overseas, its base was 10 meters up, and I
ran #6 solid copper to a 12' ground rod - 12' because that put it in
ground water. The antenna itself was trimmed to the appropriate length
for the chosen frequency. It covered 80 acres nicely, but for the stucco-on-mesh houses which were pretty effective Faraday cages.
So, Antenna + Counterpoise may not exceed the Part-15 compliant length. Antenna + Ground, one may ignore the ground as by its very nature, it
will be many feet/inches/meters longer than the antenna in very nearly every case.
Peter Wieck Melrose Park, PAHere is a link to some comments from the FCC about Part 15 transmitters: https://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/ bulletins/oet63/oet63rev.pdf. Unfortunately they don't mention the
questions raised here and I can't find the Part 15 rules themselves.
Perhaps someone else knows where they are.
--
Jim Mueller wron...@nospam.com
To get my real email address, replace wrongname with eggmen.
Then replace nospam with expressmail. Lastly, replace com with dk.
Thanks Jim, I've read that in other places but it seems there's no explanation to be had regarding exactly what constitutes the ground length.
Peter, 80 acres is amazing for a part 15 transmitter.
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