On Wed, 22 Sep 2004 14:26:53 -0700, "N7RX" wrote:

I'm not sure why you think the F6 meets my specs - it has neither
cross-band repeat nor NBFM.

You're right about the cross-band repeat - it doesn't offer that.
However it does have a setting for NBFM.

"Lew" wrote in message
et...
Go with the Kenwood TH-F6, Its a 5 Watt Tri-Bander with a GREAT wide band
receiver

"N7RX" wrote in message
...
I need a multi-band HT that does cross band repeat and has narrow-band FM
capability. Look like the IC-w32a is the only one that meets this spec.
Anybody know of another?

If not cross-band capable, how about a multi-band that is NBFM capable?

73 Neal N7RX

On Wed, 22 Sep 2004 14:26:53 -0700, "N7RX" wrote:

I'm not sure why you think the F6 meets my specs - it has neither
cross-band repeat nor NBFM.

You're right about the cross-band repeat - it doesn't offer that.
However it does have a setting for NBFM.

"Lew" wrote in message
et...
Go with the Kenwood TH-F6, Its a 5 Watt Tri-Bander with a GREAT wide band
receiver

"N7RX" wrote in message
...
I need a multi-band HT that does cross band repeat and has narrow-band FM
capability. Look like the IC-w32a is the only one that meets this spec.
Anybody know of another?

If not cross-band capable, how about a multi-band that is NBFM capable?

73 Neal N7RX

On Wed, 22 Sep 2004 14:26:53 -0700, "N7RX" wrote:

I'm not sure why you think the F6 meets my specs - it has neither
cross-band repeat nor NBFM.

You're right about the cross-band repeat - it doesn't offer that.
However it does have a setting for NBFM.

"Lew" wrote in message
et...
Go with the Kenwood TH-F6, Its a 5 Watt Tri-Bander with a GREAT wide band
receiver

"N7RX" wrote in message
...
I need a multi-band HT that does cross band repeat and has narrow-band FM
capability. Look like the IC-w32a is the only one that meets this spec.
Anybody know of another?

If not cross-band capable, how about a multi-band that is NBFM capable?

73 Neal N7RX

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

Richard in Boston, MA, USA

N7RX wrote:
: I need a multi-band HT that does cross band repeat and has narrow-band FM
: capability. Look like the IC-w32a is the only one that meets this spec.
: Anybody know of another?

: If not cross-band capable, how about a multi-band that is NBFM capable?

: 73 Neal N7RX

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

Richard in Boston, MA, USA

N7RX wrote:
: I need a multi-band HT that does cross band repeat and has narrow-band FM
: capability. Look like the IC-w32a is the only one that meets this spec.
: Anybody know of another?

: If not cross-band capable, how about a multi-band that is NBFM capable?

: 73 Neal N7RX

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

Richard in Boston, MA, USA

N7RX wrote:
: I need a multi-band HT that does cross band repeat and has narrow-band FM
: capability. Look like the IC-w32a is the only one that meets this spec.
: Anybody know of another?

: If not cross-band capable, how about a multi-band that is NBFM capable?

: 73 Neal N7RX

In article ,
Richard G Amirault wrote:

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

True 'nuff. 5 kHz peak deviation seems to be standard here in the U.S.

I understand that in many European countries, amateurs have settled on
2.5 kHz peak deviation. This allows a larger number of repeaters to
be packed into a given amount of spectrum and geographic space...
and as the European 2-meter band is only half as wide as the U.S.
band, it seems like a good tradeoff.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

In article ,
Richard G Amirault wrote:

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

True 'nuff. 5 kHz peak deviation seems to be standard here in the U.S.

I understand that in many European countries, amateurs have settled on
2.5 kHz peak deviation. This allows a larger number of repeaters to
be packed into a given amount of spectrum and geographic space...
and as the European 2-meter band is only half as wide as the U.S.
band, it seems like a good tradeoff.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

In article ,
Richard G Amirault wrote:

What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

True 'nuff. 5 kHz peak deviation seems to be standard here in the U.S.

I understand that in many European countries, amateurs have settled on
2.5 kHz peak deviation. This allows a larger number of repeaters to
be packed into a given amount of spectrum and geographic space...
and as the European 2-meter band is only half as wide as the U.S.
band, it seems like a good tradeoff.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

The term has changed over the years and has a couple of definitions.

There is a 'mathematical' or technical definition where it depends upon the
modulation index. I don't remember the number, but I think it may be where
the modulation index produces sidebands such that those past the first
(Bessel order 1) have levels that are considered insignificant. [[ Be
advised, FM has sidebands to infinity...always]]

Then there is the practical or colloquial. Right now, 2.5 KHz peak
deviation is called "Narrow FM" because 5KHz is/was the 'norm'. When 30
KHz was the norm, 15 KHz was called narrow or "split channel". After 15 KHz
was established, 5KHz was split channel or narrow. And so it goes. Then
there was the QST article about "Micro band FM" with extremely little
deviation (An April spoof since it is not technically viable).

The multi-band Kenwood TH-F6 / F7 (144/222/440) is NFM capable. However, I
suspect that they only cut the Tx deviation and leave the RX filtering the
same as 5KHz deviation...

By the way. The 15 KHz channels currently used by US hams are not what the
5KHz deviation is designed for. 15 KHz. is actually "alternate" channel
operation and is only intended for systems with enough physical separation
to keep the adjacent channel energy low enough to cause trouble.
A 5 KHz system can not 'normally' handle 15 KHz spacing. The sidebands
are not, and the required Rx filtering can not be made compatible with 15
KHz spacing. The two are mutually exclusive. 5 KHz deviation has
significant sideband energy in the adjacent 15 KHz channel and the RX
filtering required for the 5 KHz deviation must be wide enough to accept
this energy in order to provide acceptable distortion on channel.

--
Steve N, K,9;d, c. i My email has no u's.




"Richard G Amirault" wrote in message
...
What is "narrow-band FM"??? Some could say that *all* FM ham radios use
"narrow-band" ... compared to a FM broadcast station.

Richard in Boston, MA, USA

N7RX wrote:
: I need a multi-band HT that does cross band repeat and has narrow-band
FM
: capability. Look like the IC-w32a is the only one that meets this spec.
: Anybody know of another?

: If not cross-band capable, how about a multi-band that is NBFM capable?

: 73 Neal N7RX