Probably a couple of real stupid questions

Status
Not open for further replies.

McReb

Member
Joined
Dec 19, 2002
Messages
148
Location
McComb, Ms
I have a BC 285D. Will I be able to successfully monitor the Shelby Co. EDACS Aegis system and/or the Memphis Motorola II VSELF [ OR WHATEVER] if I have properly programmed my scanner?
 

UPMan

In Memoriam
Premium Subscriber
Joined
Apr 19, 2004
Messages
13,296
Location
Arlington, TX
No scanners available can decode the digital from AEGIS or V-SELP systems. Assuming you have either a BC250D or BC785D (there is no BC285D), if you have the digital board, you can decode the digital from Motorola Astro 3600 systems in addition to standard trunking and conventional.
 

Memphis

Member
Joined
Jul 1, 2004
Messages
17
Location
Memphis, TN
I have a BCT8, and it's able to monitor the system described here:

http://www.radioreference.com/modules.php?name=TRSDB&sid=531

As far as I can tell, this network is used only for the Shelby County Sheriffs Department. I programmed in the frequencies for the North tower, and the most active talkgroups I've located are 02-126, 02-127, 02-131, and 02-057 in that order. 02-057 is only active overnights and seems to be used by one group of deputies to set up speed traps and figure out where to eat :wink:

Good luck...
 

JoeyC

Senior Member
Joined
Dec 19, 2002
Messages
3,523
Location
San Diego, CA
Memphis said:
I have a BCT8, and it's able to monitor the system described here:

http://www.radioreference.com/modules.php?name=TRSDB&sid=531

As far as I can tell, this network is used only for the Shelby County Sheriffs Department. I programmed in the frequencies for the North tower, and the most active talkgroups I've located are 02-126, 02-127, 02-131, and 02-057 in that order. 02-057 is only active overnights and seems to be used by one group of deputies to set up speed traps and figure out where to eat :wink:

Good luck...

If that is true, then the RR listing as an EDACS AEGIS system is inaccurate and the system is analog and can be monitored by any of the scanners.
 

Memphis

Member
Joined
Jul 1, 2004
Messages
17
Location
Memphis, TN
JoeyC said:
If that is true, then the RR listing as an EDACS AEGIS system is inaccurate and the system is analog and can be monitored by any of the scanners.
It's true, so I suppose the listing is inaccurate. It's an EDACS trunk ("Ed" on the display in programming mode on the BCT8) but apparently it's not AEGIS.

MPD can't be monitored but SCSD definitely can.
 

INDY72

Monitoring since 1982, using radios since 1991.
Premium Subscriber
Joined
Dec 18, 2002
Messages
14,849
Location
Indianapolis, IN
AEGIS is monitorable as long as the AEGIS encryption is NOT turned on... You can monitor the Shelby County TRS almost always in the clear,.. but they can kick the AEGIS on when they feel its warrented,.. as to Motorola ASTRO-VSELP,.. nope there is no scanner that can do it. So the City of Memphis TRS is still a non scannable entity like the Warren County, MS one McReb. But the good news is that in the future all the old VSELP systems will be going bye bye since Motorola is telling them that support for the VSELP is not going to be available any longer. This means most likely a switch to ASTRO 3.6 kbps, or true P-25 9.6 kbps Digital. Then those with digital scanners will be again listening. Aegis systems, unlike PROVoice can be monitored,.... If they upgrade to a PV system then you are out of luck.
 

OutPost

Member
Joined
Nov 10, 2004
Messages
84
Location
West Tennessee
Scrambled Comm, Lexington, TN.

Hello !

I'm new to this site and will represent the Benton County area, located between Nashville and Jackson....next to the river.

I'm not privey on what you refer to as AEGIS, but if you are talking about scrambled communications, Henderson Country uses it. I first heard the same type of scrambling back in the 80's with U.S. Customs and DEA communications in Florida. At that time....nobody had access to public equipment to decipher. Is there now??

My equipment: Uniden BC350A, Regency MX5000, Cobra CB, & DX-160 HF Receiver. I monitor Benton and surrounding counties, aviation communications, & worldwide propaganda news & fanatical religious broadcasts. I specifically monitor for jamming interference on county frequencies in-order to determine if the jamming is just an "open mike," or when other frequencies experience the same interference. This public service is something I will discuss later.....
 

INDY72

Monitoring since 1982, using radios since 1991.
Premium Subscriber
Joined
Dec 18, 2002
Messages
14,849
Location
Indianapolis, IN
AEGIS Is a form of Digital Encryption for EDACS systems. It is the oldest of the Digital formats that GE-Ericcson, now M/A-Com had. It is on the way out in favor of thier Provoice format. It is not scrambling/inversion, it is true encryption. When used on a TG, you can not hear anything but a electronic buzz/warble. A lot of people mistakenly think that AEGIS is like Provoice in that you cant hear any TG's.... with PV, you can set up the system to be pure digital, or mixed mode with some analog TG's. PV digital TG's are always digital and can't be heard on any scanner made. With AEGIS, you can turn it on and off on ANY TG. When enabled, you can't hear the traffic on the TG, but when its switched off, you can hear the coms clearly. AEGIS is used rarely on the Shelby County EDACS TRS. Years ago it was used a lot more. As for the Memphis City TRS, it uses the oldest Motorola Digital Format= ASTRO VSELP. It is an unmonitorable digital format, and is also on the way out as its being replaced with the ASTRO (3.6 KBPS IMBE), and the ASTRO-25 (9.6 KBPS IMBE "true P-25").
 
Status
Not open for further replies.
Top