771XV vs 791XV

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hagmanti

Silver - Posts: 304

Joined: September 14, 2004

Location: United States

Posted: September 16, 2004 at 1:44 PM / IP Logged

What are the differences between the 771XV and the 791XV? I've gone through both installation manuals (and both owner's manuals) and the only difference I can see are the remote (LED vs LCD), the AM vs FM thing, and a slight difference in how zones are set up...

I'm looking to put a 2-way remote start w/ security into a 2k1 Civic and it seems like the 771XV might save me a little money, especially since I'll need to buy 1 or 2 extra remotes...

Thanks in advance for any thoughts; sorry if this has been asked before (I searched on 771 and 771XV and found nothing except the AM vs. FM stuff mentioned above).

kgerry

Platinum - Posts: 3,455

This member consistently provides reliable information

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 16, 2004 at 4:01 PM / IP Logged

you seem to have answered your own questions.... the only differences between them are that 1 is LCD and 1 is LED, as well as the fact that 1 is true Responder ( the FM system ) while 1 is AM-ASK similar to the Avital and Valet 2 ways.....

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

Teken

Gold - Posts: 1,492

Joined: August 04, 2002

Location: Aruba

Posted: September 16, 2004 at 4:20 PM / IP Logged

kgerry wrote:

as well as the fact that 1 is true Responder ( the FM system ) while 1 is AM-ASK similar to the Avital and Valet 2 ways.....

Please define true Responder for me.

Regards

EVIL Teken . . .

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 16, 2004 at 4:56 PM / IP Logged

Responder is an FSK FM based broadcast system... this gives greater range and transmitter stability as well as better building/obstruction penetration.....it also broadcasts and receives on 2 different frequencies, allowing for real time communication with the vehicle as opposed to the ASK AM system which receives and sends on the same frequency, which can cause a 20-30 delay before the unit pages the remote.....not great for security

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 16, 2004 at 5:08 PM / IP Logged

BTW, i'm still a little torn on the LED models.... i like the fact that the remote is smaller, but still think the LED's look a little tacky.....

the one thing i really hope is that they are easier on batteries than the 791 series remotes.....

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

hagmanti

Silver - Posts: 304

Joined: September 14, 2004

Location: United States

Posted: September 16, 2004 at 5:55 PM / IP Logged

kgerry wrote:

.....it also broadcasts and receives on 2 different frequencies, allowing for real time communication with the vehicle as opposed to the ASK AM system which receives and sends on the same frequency, which can cause a 20-30 delay before the unit pages the remote.....not great for security

First, I assume you mean 20-30 second delay.

And if so, that's definitely not worth my time. However, I don't see why the use of one frequency should make that happen, unless you happened to be pushing buttons at the same time the vehicle was trying to page the remote.

Have you (or anyone?) actually seen a delay greater than 10 seconds in practice? How often does that occur?

Thanks in advance; I really appreciate the amzing stuff I've already found on this forum,

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 17, 2004 at 11:59 AM / IP Logged

the problem with one frequency is that the unit pages for 15 seconds, then receives for 15 seconds, then pages again, you get the idea... so if the unit was just beginning to receive and the alarm was triggered it has to finish it's cycle and then page... whereas the Responder units can page and receive at the same time.....

bottom line tho, they are both good units.... alot better than most of the no name crap out there.....

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

hagmanti

Silver - Posts: 304

Joined: September 14, 2004

Location: United States

Posted: September 18, 2004 at 12:11 AM / IP Logged

kgerry wrote:

Forgive me for being slow; I haven't worked w/ this system, and I'm having trouble wrapping my mind around this.

Are you saying that if I press the lock button on my remote, it may take up to fifteen seconds for the car to unlock?

I've _never_ installed or used any alarm / keyless entry that does that...

Am I inferring incorrectly? It's late-- I could certainly be missing something obvious...

I have to come back to the question-- does this sort of (unacceptably) long delay actually occur in practice? If so, how often?

Teken

Gold - Posts: 1,492

Joined: August 04, 2002

Location: Aruba

Posted: September 18, 2004 at 10:30 AM / IP Logged

Personally I have never observed such a long delay from the time of activation of the desired button and the alarms CPU responding.

There are however short delays, from 1-2 seconds. Whether they all do this, I can only tell you from first hand exerience on 18 I have operated.

With respect to the page back issue kgerry, if you have some resources for us to review on this. That would be great to see. As I would like to learn as much about a product and its operation prior to relaying information to a client.

Regards

EVIL Teken . . .

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 18, 2004 at 10:55 AM / IP Logged

no the time to unlock is normal... we are talking about the static PAGING time...... i do my research on the product from the manufacturers website and the propaganda and technical white pages they send us..... i suggest y'all go to a dealer and get all the skinny on the various different models....

or is it easier to just sit on a stool in front of a monitor and let someone else educate you?

there are substantial differeneces between the Responder models and the cheaper AM based 2 way models.... why do you think one costs 50-100 bucks more than the other?

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

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