J. Mc Laughlin wrote:
Dear "no one"

You sure have an unusual name.

Please try the following with your 2096: Use the control channel for
the Owosso system. It is 868.9375 MHz. In other words, do not use the
Genesee control channel on 868.8875 MHz. The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the Genesee
system. The down side is that the Owosso system only has the Genesee
dispatch circuits and systems west, north, and south of Genesee.

It will be interesting to learn what quality of signals you receive by
using the Owosso system.


Thanks!

I just got off the phone with Radio Shack and There answer is that There
is something Wrong with The System.

I say That this is UNTRUE.
If there was a problem with the System, All the Police Cars and
Emergency vehicles who are trying to Save lives would be hampered .
also If it Was true , I am Sure That my LOCAL agencies Would DROP the
system and go Back to WhaTEVER works.

It sounds to me that is is a DESIGN problem with the PRO 2096, and
Radioshack needs to Put out an UPDATE to the Firmware or a Complete RECALL !


A call to my LOCAL radio shack came up with more info. The manager
says That all the pro2096 she has sold, Every person is complaing of
this problem, They are issuing lots of REFUNDS !

By the Way, Tech at fort worth Says the RADIO/SCANNER (PRO 2096) is
Still an ACTIVE product ! Even tho there is no mention of it on Radio
Shacks Website ! As we all Know, The Webmaster At Radio Shack.com Needs
to View His or HER work and Make sure it is Correct !



Regards, Mac
--
J. Mc Laughlin; Michigan U.S.A.
Home:
"no one" wrote in message
. com...


Byung Myung Sying wrote:


Skuby wrote:



The best scanner that I have ever owned and I have owned 5 in the past.


I add:

I agree that the PRO-96 is a fabulous scanner. You need to purchase
Don Starr's product "Win96" to really make it a powerful scanning
device. Win96 allows you to open up military aircraft frequencies as
well as to directly program the PRO-96 directly from the
RadioReference database.

You should note that here in the Detroit, MI area, we are having
problems decoding the Detroit Police Department's new digital system.
This problem is not specific to the PRO-96, the Uniden 396 also
exhibits the same problem. Both companies are examining the problem
and don't yet have an answer for us as to whether the problem will be
fixable.



My pro 2096 is one month old and even with Win96 programing The audio is
REAL CHOPPY. I hear every other word said Here in GENESEE COUNTY . Mi
( Flint, Mi area)
Ps.
The city of Flint Decided Not to use the Digital system.. I am beginning
to think they WERE WISE after looking at all the foums on the Motorola
apco-25 system.

no one wrote:


J. Mc Laughlin wrote:

Dear "no one"

You sure have an unusual name.

Please try the following with your 2096: Use the control channel for
the Owosso system. It is 868.9375 MHz. In other words, do not use the
Genesee control channel on 868.8875 MHz. The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the
Genesee




Tried this and I Got NO RECEPTION what so ever with the pro 2096 ( Signals)



system. The down side is that the Owosso system only has the Genesee
dispatch circuits and systems west, north, and south of Genesee.

It will be interesting to learn what quality of signals you
receive by
using the Owosso system.



Thanks!

I just got off the phone with Radio Shack and There answer is that There
is something Wrong with The System.

I say That this is UNTRUE.
If there was a problem with the System, All the Police Cars and
Emergency vehicles who are trying to Save lives would be hampered .
also If it Was true , I am Sure That my LOCAL agencies Would DROP the
system and go Back to WhaTEVER works.

It sounds to me that is is a DESIGN problem with the PRO 2096, and
Radioshack needs to Put out an UPDATE to the Firmware or a Complete
RECALL !


A call to my LOCAL radio shack came up with more info. The manager
says That all the pro2096 she has sold, Every person is complaing of
this problem, They are issuing lots of REFUNDS !

By the Way, Tech at fort worth Says the RADIO/SCANNER (PRO 2096) is
Still an ACTIVE product ! Even tho there is no mention of it on Radio
Shacks Website ! As we all Know, The Webmaster At Radio Shack.com Needs
to View His or HER work and Make sure it is Correct !



Regards, Mac
--
J. Mc Laughlin; Michigan U.S.A.
Home:
"no one" wrote in message
. com...


Byung Myung Sying wrote:


Skuby wrote:



The best scanner that I have ever owned and I have owned 5 in the
past.



I add:

I agree that the PRO-96 is a fabulous scanner. You need to purchase
Don Starr's product "Win96" to really make it a powerful scanning
device. Win96 allows you to open up military aircraft frequencies as
well as to directly program the PRO-96 directly from the
RadioReference database.

You should note that here in the Detroit, MI area, we are having
problems decoding the Detroit Police Department's new digital system.
This problem is not specific to the PRO-96, the Uniden 396 also
exhibits the same problem. Both companies are examining the problem
and don't yet have an answer for us as to whether the problem will be
fixable.




My pro 2096 is one month old and even with Win96 programing The audio is
REAL CHOPPY. I hear every other word said Here in GENESEE COUNTY . Mi
( Flint, Mi area)
Ps.
The city of Flint Decided Not to use the Digital system.. I am beginning
to think they WERE WISE after looking at all the foums on the Motorola
apco-25 system.

On Mon, 9 Jan 2006 08:47:35 -0500, "J. Mc Laughlin"
wrote:

The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the Genesee
system.

If you're talking about the MPSCS, it's a Motorola system, so there's
only 1 control channel on the air at a time from any site. Multipath
isn't caused by multiple transmitters, it's caused by signal
reflections.

Collapse the antenna fully or replace with a better quality 800 MHz
antenna.
Worked for me, "choppy audio" is no more !




On Mon, 09 Jan 2006 17:24:19 GMT, no one wrote:



J. Mc Laughlin wrote:
Dear "no one"

You sure have an unusual name.

Please try the following with your 2096: Use the control channel for
the Owosso system. It is 868.9375 MHz. In other words, do not use the
Genesee control channel on 868.8875 MHz. The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the Genesee
system. The down side is that the Owosso system only has the Genesee
dispatch circuits and systems west, north, and south of Genesee.

It will be interesting to learn what quality of signals you receive by
using the Owosso system.


Thanks!

I just got off the phone with Radio Shack and There answer is that There
is something Wrong with The System.

I say That this is UNTRUE.
If there was a problem with the System, All the Police Cars and
Emergency vehicles who are trying to Save lives would be hampered .
also If it Was true , I am Sure That my LOCAL agencies Would DROP the
system and go Back to WhaTEVER works.

It sounds to me that is is a DESIGN problem with the PRO 2096, and
Radioshack needs to Put out an UPDATE to the Firmware or a Complete RECALL !


A call to my LOCAL radio shack came up with more info. The manager
says That all the pro2096 she has sold, Every person is complaing of
this problem, They are issuing lots of REFUNDS !

By the Way, Tech at fort worth Says the RADIO/SCANNER (PRO 2096) is
Still an ACTIVE product ! Even tho there is no mention of it on Radio
Shacks Website ! As we all Know, The Webmaster At Radio Shack.com Needs
to View His or HER work and Make sure it is Correct !



Regards, Mac
--
J. Mc Laughlin; Michigan U.S.A.
Home:
"no one" wrote in message
. com...


Byung Myung Sying wrote:


Skuby wrote:



The best scanner that I have ever owned and I have owned 5 in the past.


I add:

I agree that the PRO-96 is a fabulous scanner. You need to purchase
Don Starr's product "Win96" to really make it a powerful scanning
device. Win96 allows you to open up military aircraft frequencies as
well as to directly program the PRO-96 directly from the
RadioReference database.

You should note that here in the Detroit, MI area, we are having
problems decoding the Detroit Police Department's new digital system.
This problem is not specific to the PRO-96, the Uniden 396 also
exhibits the same problem. Both companies are examining the problem
and don't yet have an answer for us as to whether the problem will be
fixable.



My pro 2096 is one month old and even with Win96 programing The audio is
REAL CHOPPY. I hear every other word said Here in GENESEE COUNTY . Mi
( Flint, Mi area)
Ps.
The city of Flint Decided Not to use the Digital system.. I am beginning
to think they WERE WISE after looking at all the foums on the Motorola
apco-25 system.

someone wrote:

Collapse the antenna fully or replace with a better quality 800 MHz
antenna.
Worked for me, "choppy audio" is no more !

I just tried it and it DIDNOT cure the problem






On Mon, 09 Jan 2006 17:24:19 GMT, no one wrote:



J. Mc Laughlin wrote:

Dear "no one"

You sure have an unusual name.

Please try the following with your 2096: Use the control channel for
the Owosso system. It is 868.9375 MHz. In other words, do not use the
Genesee control channel on 868.8875 MHz. The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the Genesee
system. The down side is that the Owosso system only has the Genesee
dispatch circuits and systems west, north, and south of Genesee.

It will be interesting to learn what quality of signals you receive by
using the Owosso system.


Thanks!

I just got off the phone with Radio Shack and There answer is that There
is something Wrong with The System.

I say That this is UNTRUE.
If there was a problem with the System, All the Police Cars and
Emergency vehicles who are trying to Save lives would be hampered .
also If it Was true , I am Sure That my LOCAL agencies Would DROP the
system and go Back to WhaTEVER works.

It sounds to me that is is a DESIGN problem with the PRO 2096, and
Radioshack needs to Put out an UPDATE to the Firmware or a Complete RECALL !


A call to my LOCAL radio shack came up with more info. The manager
says That all the pro2096 she has sold, Every person is complaing of
this problem, They are issuing lots of REFUNDS !

By the Way, Tech at fort worth Says the RADIO/SCANNER (PRO 2096) is
Still an ACTIVE product ! Even tho there is no mention of it on Radio
Shacks Website ! As we all Know, The Webmaster At Radio Shack.com Needs
to View His or HER work and Make sure it is Correct !



Regards, Mac
--
J. Mc Laughlin; Michigan U.S.A.
Home:
"no one" wrote in message
gy.com...


Byung Myung Sying wrote:



Skuby wrote:




The best scanner that I have ever owned and I have owned 5 in the past.


I add:

I agree that the PRO-96 is a fabulous scanner. You need to purchase
Don Starr's product "Win96" to really make it a powerful scanning
device. Win96 allows you to open up military aircraft frequencies as
well as to directly program the PRO-96 directly from the
RadioReference database.

You should note that here in the Detroit, MI area, we are having
problems decoding the Detroit Police Department's new digital system.
This problem is not specific to the PRO-96, the Uniden 396 also
exhibits the same problem. Both companies are examining the problem
and don't yet have an answer for us as to whether the problem will be
fixable.



My pro 2096 is one month old and even with Win96 programing The audio is
REAL CHOPPY. I hear every other word said Here in GENESEE COUNTY . Mi
( Flint, Mi area)
Ps.
The city of Flint Decided Not to use the Digital system.. I am beginning
to think they WERE WISE after looking at all the foums on the Motorola
apco-25 system.

Dear Mr.Klein:

It is not the control channel that is the problem. It may be sent from
only one transmitter (and thus suffer only the old-fashion multipath type of
distortion). In other words, it appears that the control channel is decoded
successfully. This could be due to the existence of a robust type of coding
that combats old-fashion multipath type of distortion.

However, when mobile stations are sent by the control channel off to one
of the allocated frequencies, problems seem to occur with the digitally
encoded voice signals. Since systems that use a total of one transmitting
site do not appear to suffer and systems that use multiple transmitting
sites do suffer, one hypothecates reasons.

A form of multipath distortion exists that is due to the use of
multiple, well spaced transmitters that are transmitting at the same time.
That is the type of distortion I called "multiple-transmitter-multipath."

One might guess that if one is close to one of the transmitters (of a
multiple transmitter system) then one would not have a problems because the
near transmitter's emissions would dominate. I have not tested this
hypothesis.

However, when one is receiving multiple transmissions of approximately
equal amplitude but transmissions that have encountered different delays,
then one expects to see what looks like multipath. An enhanced receiver can
remove the problem at a cost that includes slight delay. A "low cost"
receiver without enhanced processing may have a hard time decoding signals
that have been contaminated by multipath of any kind.

When listening to a one transmitter site (Owosso), my BCD396T receives
almost all voice signals well most of the time. When listening to a system
(APCO25) that uses multiple transmitting sites (Genesee), my BCD396T
produces distorted audio much of the time. At my location, the signal from
the control channel of the multiple transmitter system is somewhat stronger
than the signal from the one transmitter system.

Even back in the RTTY days with each "bit" being 20 to 22 mS long,
multipath was capable of distorting signals. The much higher data rates of
the digital system in question makes the
decoding-in-the-presence-of-one-type-or-another-multipath difficult.

In short: multipath can be caused by means other than signal
reflections and the present "low cost" receivers seem not to contain
multipath resistance processing.

Regards, Mac



--
J. Mc Laughlin; Michigan U.S.A.
Home:

"Al Klein" wrote in message
...
On Mon, 9 Jan 2006 08:47:35 -0500, "J. Mc Laughlin"
wrote:

The Owosso system uses only one
transmitter thus avoiding the multiple-transmitter-multipath of the
Genesee
system.

If you're talking about the MPSCS, it's a Motorola system, so there's
only 1 control channel on the air at a time from any site. Multipath
isn't caused by multiple transmitters, it's caused by signal
reflections.

Dear "no one"

Thank you for describing your experience.

It may well be that you are too far away from the Owosso system for your
receiver to receive a useful signal. I am on the western edge of Genesee
County and I have no difficulty receiving both systems.

Regards, Mac

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"no one" wrote in message
m...


no one wrote:



Tried this and I Got NO RECEPTION what so ever with the pro 2096 (
Signals)

On Tue, 10 Jan 2006 23:53:50 -0500, "J. Mc Laughlin"
wrote:

However, when mobile stations are sent by the control channel off to one
of the allocated frequencies, problems seem to occur with the digitally
encoded voice signals. Since systems that use a total of one transmitting
site do not appear to suffer and systems that use multiple transmitting
sites do suffer, one hypothecates reasons.

A form of multipath distortion exists that is due to the use of
multiple, well spaced transmitters that are transmitting at the same time.
That is the type of distortion I called "multiple-transmitter-multipath."

Multiple site Motorola systems don't transmit on the same frequency
from different sites. In theory what you say is true (although it's
not "multipath", it's plain old simple interference - multipath refers
to a signal from a single transmitter arriving over multiple paths,
and nothing else), but if you look at the actual in-the-field sites,
you'll see that your theory isn't put into practice.

One might guess that if one is close to one of the transmitters (of a
multiple transmitter system) then one would not have a problems because the
near transmitter's emissions would dominate. I have not tested this
hypothesis.

It's not an hypothesis, it's called "capture effect", and it's a
property of FM receivers.

When listening to a one transmitter site (Owosso), my BCD396T receives
almost all voice signals well most of the time. When listening to a system
(APCO25) that uses multiple transmitting sites (Genesee), my BCD396T
produces distorted audio much of the time.

Genesee is *a* site - in a larger system that encompasses many sites..
The fact that it lists more than 1 control frequency doesn't mean that
it has multiple control channel transmitters on the air at the same
time.

At my location, the signal from
the control channel of the multiple transmitter system is somewhat stronger
than the signal from the one transmitter system.

Since there's only 1 control transmitter on any one frequency at any
one time for any one site, you're analyzing the situation incorrectly.
You may be getting interference of some sort, but it's not due to
multiple control channel transmitters from the same system at the same
location.

In short: multipath can be caused by means other than signal
reflections

Except that what you're describing isn't called multipath. Multipath
is the term used to refer to signals from a single transmitter
arriving over multiple paths - hence "multi-path".

"Al Klein" wrote in message

"hence multi-path"

Is that the same thing as what ham radio operators of 2 meter repeaters call
"intermod" ?

H.J.

In a simplistic way, Intermod (intermodulation distortion) is the result of
two or more separate signals being combined. The intermixing of these
signals creates distortion of the signal you are receiving.
In a round about way, multi-path is similar because the combined multiple
images are out of phase and they will mix in the same way as do two
unrelated signals, and create distortion.


"Honest John" wrote in message
...

"Al Klein" wrote in message

"hence multi-path"

Is that the same thing as what ham radio operators of 2 meter repeaters
call
"intermod" ?

H.J.