Steven Samuel Bosshard (NU5D) wrote:
> I remember once upon a time a couple of hams were running RTTY on 2M using a
> non-ascii code. Back then the take was that as long as both parties kept a
> record of the coding being used and had same readily available for
> inspection in their station record
"non-open standards" have always been legal. The point is whether you
need a special code or other key to receive it, ie, can the FCC pick up
I remember once upon a time a couple of hams were running RTTY on 2M using a
non-ascii code. Back then the take was that as long as both parties kept a
rec
mch wrote:
> So, it looks like even non-open standards may be used now - INCLUDING
> ENCRYPTION! That used to be specifically prohibited.
>
> Joe M.
"non-open standards" have always been legal. The point is whether you
need a special code or other key to receive it, ie, can the FCC pick up
a r
The only problem is that sometimes even Hollingsworth does not know the rules.
-- Original Message --
Received: Wed, 25 Apr 2007 06:32:14 PM CDT
From: <[EMAIL PROTECTED]>
> Leave the rules to Hollingsworth the FCC rep.
Actually, the FCC (via letter from Bill Cross) has recently (within the
last year) declared a D-Star repeater to be specifically DATA, and
subject only to the same rules as are used for other digital stations
and digipeaters.
They have said they are not subject to the same rules as voice repeaters
The FCC does not consider digitized audio such as P25 or D-Star digitized
audio to be a data emission instead they consider it to be phone (I'm
referring to voice only transmissions). The C4FM modulation type currently
used with phase I 12.5Khz P25 voice signals is still FM and while it has a
diffe
Guy's, instead of arm chair quarterbacking.
Leave the rules to Hollingsworth the FCC rep.
Your opinion or interp carries no merit.
Regards, Barry
--- Nate Bargmann <[EMAIL PROTECTED]> wrote:
> * mch <[EMAIL PROTECTED]> [2007 Apr 25 15:33 -0500]:
> > Wrong. If it's not an open protocol, it's no
I never suggested P25 was not legal.
The rule I was talking about seems to have been axed last year, when the
FCC ammended, among other rules:
-
* 97.113(a)(4) to prohibit amateur stations exchanging messages with
amateur stations in other countries from making
As I just posted, it seems even encryption is no longer prohibited.
My reply was based on the rules as they existed a year ago. They
changed. See my recent post for details.
Joe M.
Jim B. wrote:
>
> mch wrote:
> > Wrong. If it's not an open protocol, it's not legal in the ham band.
> >
> > If A
* mch <[EMAIL PROTECTED]> [2007 Apr 25 15:33 -0500]:
> Wrong. If it's not an open protocol, it's not legal in the ham band.
Here is the relevant portion for FCC jurisdictions:
-
§97.309 RTTY and data emission codes.
(b) Where authorized by §§ 97.305(c) and 97.307(f) of this part, a
station
mch wrote:
> Wrong. If it's not an open protocol, it's not legal in the ham band.
>
> If AOR's is not an open standard, it too would not be legal.
>
> The fact that a unit only works with other like units does not matter.
> After all, D-Star only talks with D-Star, and P25 with P25.
>
> Joe M.
>
In a message dated 4/25/2007 2:21:27 PM Central Daylight Time,
[EMAIL PROTECTED] writes:
Took a couple of antique GE Phoenix SX mobile radios. Programmed for
> 442.0/ 447.0. With TOT. Carrier Squelch - Took Receiver Un Squelched
> lead to PTT thru a one transistor keying transistor.
>
> Took
Wrong. If it's not an open protocol, it's not legal in the ham band.
If AOR's is not an open standard, it too would not be legal.
The fact that a unit only works with other like units does not matter.
After all, D-Star only talks with D-Star, and P25 with P25.
Joe M.
Dan Blasberg wrote:
>
> VS
On Tue, 24 Apr 2007, Steve Bosshard (NU5D) wrote:
> Took a couple of antique GE Phoenix SX mobile radios. Programmed for
> 442.0/ 447.0. With TOT. Carrier Squelch - Took Receiver Un Squelched
> lead to PTT thru a one transistor keying transistor.
>
> Took VOL / SQ Hi and ran it thru a single c
On Wed, 25 Apr 2007, DCFluX wrote:
> It might not be so bad if it wasn't for the vocoder, But if I wan't to
> listen to a 'Speak And Spell' (tm) I will go to a thrift store or
> interact with the my vintage RC-850 repeater controller.
Hrm. I might have to fire up a speak & spell to record a ID.
The AOR digital voice units use a published open protocol developed by Charles,
G4GUO.
Gary
Dan Blasberg <[EMAIL PROTECTED]> wrote:
Under that logic, the AOR Digital voice units should not
> be used on the ham bands because they only work with other AOR units (not an
> open standard).
>
VSLEP, AEGIS and Pro-Voice aren't any different than D-Star is at this
point and can be used just as any other digital mode on the ham bands.
You just have to have another radio programmed for that protocol to
receive it. Under that logic, the AOR Digital voice units should not
be used on the
In a message dated 4/25/2007 9:07:26 AM Central Daylight Time,
[EMAIL PROTECTED] writes:
But I just purchased a VHF Astro Saber on Ebay for under $350... 255 channel,
6w, P25 and analog. I have purchased UHF Astro sabers for under $125 shopping
around.
Be very careful when purchasing any Mo
Bob Dengler wrote:
> At 4/24/2007 05:17 PM, you wrote:
>> I don't know. Like any other radio gear it depends on the brand, model,
>> and how badly the seller wants to sell I guess. Motorola isn't the only
>> maker offering P25 digital audio capable radios (we'll assume CAI/IMBE
>> compatible). I
Steve Bosshard (NU5D) wrote:
> Until P25 radios become ham affordable I don't think they will be
> mainstream
> ham radio. I believe there is still a pretty hefty payment to Moto for use
> of the P25 standard, but I may be wrong.
>
> Steve NU5D
Hi, Steve,
I think you're right, but I don't see
Well considering that they have P25 capable scanners at decent, and falling,
prices, P25 for ham rigs is doable. But they seem intent on pushing the D-Star
standard on us... when in my eyes P25 is a far better choice. But I see it as a
far better choice in part because it means surplus gear is a
I ran an AOR DV unit thru a plain old 2M voice repeater a few years ago.
Not withstanding the faults with the AOR like sync and re-entry, the audio
is GREATTT. They do lots of digital enhancements and to my poor ears
the fidelity is just awesome, and their 36 carrier scheme will fit into a
pla
I finnally got a chance to listen to a D-Star transmission. I came to
the conclusion that D-Star sucks on paper as well as in practice.
Sure, It saves bandwidth, but is it really worth the effort? Look at
how well that practice has worked for the cellular industry.
It might not be so bad if it was
It shouldn't cost anymore for an IMBE P25 board to be added than for
the AMBE D-star add-in boards. Different Vocoder, but the licensing
from DVSI for the manufactures should be the same. All of them have
the ability to do IMBE on the commercial side, so it shouldn't be that
difficult or expe
Steve,
No more than for a D-star capable rig, either mobile or portable. Used
Astro Sabers go for anywhere from $150 for a basic 16 channel model to
$700 for a full blown 255 channel model with display and keypad. EF
Johnson 5100's can be had for about $500 used (and they are front panel
pro
At 4/24/2007 05:17 PM, you wrote:
>I don't know. Like any other radio gear it depends on the brand, model,
>and how badly the seller wants to sell I guess. Motorola isn't the only
>maker offering P25 digital audio capable radios (we'll assume CAI/IMBE
>compatible). Icom, Kenwood, and others are
I don't know. Like any other radio gear it depends on the brand, model,
and how badly the seller wants to sell I guess. Motorola isn't the only
maker offering P25 digital audio capable radios (we'll assume CAI/IMBE
compatible). Icom, Kenwood, and others are also offering rigs and surplus
stuff po
Thanks Gary, so what will it cost Mondo Ham to go out and buy a VHF P25
radio - portable - battery and charger antenna and speaker/mic new or used
and the stuff to program it with?
Thanks, Steve
On 4/24/07, Gary <[EMAIL PROTECTED]> wrote:
Yes you are wrong. Motorola does not nor did they ever
Yes you are wrong. Motorola does not nor did they ever own the APCO
Project 25 standard. Many multiband excitation technologies commonly
used today are the property of Digital Voice System Inc. (DVSI). They
license Motorola (and other manufactures) to use the designs in their
P25 radio systems. P25
Took a couple of antique GE Phoenix SX mobile radios. Programmed for 442.0/
447.0. With TOT. Carrier Squelch - Took Receiver Un Squelched lead to PTT
thru a one transistor keying transistor.
Took VOL / SQ Hi and ran it thru a single common emitter stage - bipolar amp
and applied the collector o
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