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From: Glenn Little WB4UIV glennmaill...@bellsouth.net
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2010 11:23 PM
Subject: Re: [Repeater-Builder] Narrowbanding
I do not know about Nextel, but, the US DTV signal fits into a 6 MHz
bandwidth.
We use a mask filter to ensure
On 8/2/2010 11:23 PM, Glenn Little WB4UIV wrote:
I do not know about Nextel, but, the US DTV signal fits into a 6 MHz
bandwidth.
We use a mask filter to ensure that the bandwidth is no more than 6 MHz.
500 kHz from band edge= -47 dB
6 MHz from band edge= -110 dB
73
Glenn
WB4UIV
And
.
- Original Message -
From: Glenn Little WB4UIV glennmaill...@bellsouth.net
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2010 11:23 PM
Subject: Re: [Repeater-Builder] Narrowbanding
I do not know about Nextel, but, the US DTV signal fits into a 6 MHz
bandwidth.
We use a mask
Florida Repeater Coordinator proposes narrowbanding:
http://www.florida-repeaters.org/FRC%202meter%20narrowband%20p
olicy%20released%207-18-10.pdf
Apparently Carson's Rule works different in Florida than it does everywhere
else.
--- Jeff WN3A
I was wondering about that myself. The bandwidths spec'd just didn't
seem to compute in my feeble mind.
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
Jeff DePolo wrote:
Florida Repeater Coordinator proposes narrowbanding:
On 8/2/2010 9:37 AM, Jeff DePolo wrote:
Florida Repeater Coordinator proposes narrowbanding:
http://www.florida-repeaters.org/FRC%202meter%20narrowband%20p
olicy%20released%207-18-10.pdf
Apparently Carson's Rule works different in Florida than it does everywhere
else.
On 8/2/2010 10:45 AM, Scott Zimmerman wrote:
I was wondering about that myself. The bandwidths spec'd just didn't
seem to compute in my feeble mind.
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
Jeff DePolo wrote:
Florida Repeater Coordinator
How wide is it?
Chuck
WB2EDV
- Original Message -
From: wd8chl wd8...@gmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2010 10:58 AM
Subject: Re: [Repeater-Builder] Narrowbanding
...or that think the US DTV standard fits in a 6 MHz
channel...NOT!
At 8/2/2010 06:37, you wrote:
Florida Repeater Coordinator proposes narrowbanding:
http://www.florida-repeaters.org/FRC%202meter%20narrowband%20p
olicy%20released%207-18-10.pdf
Apparently Carson's Rule works different in Florida than it does everywhere
else.
Well put, Jeff. IMO 10 kHz is
is it?
Chuck
WB2EDV
- Original Message -
From: wd8chl wd8...@gmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2010 10:58 AM
Subject: Re: [Repeater-Builder] Narrowbanding
...or that think the US DTV standard fits in a 6 MHz
channel
FWIW it would probably be made to workat a price, but for ordinary
consumer type Amateur Radios, not really.
We have been conditioned to the sub $400 price range radios that do
everything, go everywhere and have less than ordinary receivers in them. :-)
73,
Jack VK4JRC
Sent from my
channel. This is much the same concept used in CA years ago when two meters
was switched 15 kHz channel centers.
Rob K7TGU
- Original Message -
From: MCH m...@nb.net
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 02, 2010 13:16
Subject: Re: [Repeater-Builder] Narrowbanding
I
I do not know about Nextel, but, the US DTV signal fits into a 6 MHz bandwidth.
We use a mask filter to ensure that the bandwidth is no more than 6 MHz.
500 kHz from band edge = -47 dB
6 MHz from band edge = -110 dB
73
Glenn
WB4UIV
At 10:58 AM 8/2/2010, you wrote:
On 8/2/2010 10:45 AM, Scott
PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, February 27, 2007 9:36 AM
Subject: Re: [Repeater-Builder] Narrowbanding
-Original Message-
From: George Henry [EMAIL PROTECTED]
Sent: Feb 26, 2007 11:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder
if it was worth doing or not, particulary for a GMRS repeater
the potential for FRS interference.
- Original Message -
From: Dick [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, February 25, 2007 4:04 PM
Subject: Re: [Repeater-Builder] Narrowbanding
George:
What do
-Original Message-
From: George Henry [EMAIL PROTECTED]
Sent: Feb 26, 2007 11:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Narrowbanding
[snip]
Just wondering if it was worth doing or not, particulary for a GMRS repeater
the potential for FRS interference
George,
Hate to confuse you more, but there are also FRS channels between the
repeater inputs.
Johnny
George Henry wrote:
-Original Message-
From: George Henry [EMAIL PROTECTED]
Sent: Feb 26, 2007 11:09 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder
: Re: [Repeater-Builder] Narrowbanding
George,
Hate to confuse you more, but there are also FRS channels between the
repeater inputs.
Johnny
George Henry wrote:
-Original Message-
From: George Henry [EMAIL PROTECTED]
Sent: Feb 26, 2007 11:09 PM
To: Repeater-Builder@yahoogroups.com
At 2/25/2007 12:04, you wrote:
Has anyone narrowbanded a Mitrek, MastrII, or Johnson PPL6060 with
Com-Spec's narrowband filter kits? Is it really worth doing?
I retrofitted a VHF HB Mastr II with the ComSpec filters a while
back. They definitely work. However, if your goal is to provide
George:
What do you mean by narrowbanding?
What's the current FM deviation on the radios?
Way back when, it was called narrowbanding when the FCC changed
from +/- 15 KHz to +/- 5 KHz FM dev.
73,
Dick W1NMZ
- Original Message -
From: George Henry [EMAIL PROTECTED]
To:
James wrote:
h, not that I dis-like code or anything but while we are thinking of
the end of an era, lets think about the new one! How about a narrow banding
requirement for VHF/UHF FM!!!
just sticking my 2c in ;)
James WJ1D
Nah-if hams feel the need to narrowband, it will
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