What would you guys like to see in a video about Spectres and VG2?

Jon at Radenso

Manufacturer
Advanced User
Premium Member
Manufacturer
Joined
Oct 9, 2012
Messages
1,908
Reaction score
14,210
Age
31
I am going to have one of our engineers do a video with me about Spectres and VG2. I feel there is a lot of misinformation about them and it will be good to put our lab to use. We have a VG2, a Spectre Elite, and a Spectre 3.

I am planning on:

1. Interior pics
2. Using a signal generator to sweep and profile exactly which frequencies each one scans for (what their cutoffs are down to the mhz)
3. What their LOs are
4. How strong leakage from their own LOs is

What else do you guys want to see?
 
Last edited:

Deacon

TXCTG
Advanced User
Lifetime Premium Member
Joined
Nov 13, 2016
Messages
11,112
Reaction score
15,317
Location
Hill Country, TX
For those people concerned about such things the real golden apple would of course be demonstrating that Theia triggers none of them to alert, even nose to nose in the worst-case unfiltered and max sensitivity settings. But if Theia is not ready for such a demonstration, then the educational value alone of a video hitting the points you mention would be great. It would also be nice for us in the enthusiast community to hit on a few myths (or not) regarding “stealthiness” of a detector (case material, RF-absorbing foam, directionality, etc) and an explanation of why Theia will be fully stealth.
 

Vortex

Making Videos
Observer
Advanced User
Lifetime Premium Member
Joined
Jul 19, 2012
Messages
19,738
Reaction score
47,191
Location
Washington State
Nice! This'd be awesome.

In addition to what you said, what about a discussion of RD LO leakage and harmonics and what in a RD is being picked up on.

A common question I get is if they false to BSM's the way RD's do. They aren't tuned to detect K or Ka frequencies, but it'd be good to address either way.

I've seen some RD's false to Ka when getting close to a Spectre. Taking a closer look at that would be interesting too.

IIRC some older Cobras have VG-2 alerts so talking about how detectable RDD's are would be interesting.

Spectres are insanely directional to make it easier to pinpoint the RD as you spin it on its mount. Maybe a little discussion on why it's so directional (horn design?) would be cool too.

Differences between the different Spectres would be cool. There's a Spectre I and Spectre II on the B&S section of the forum. Since they've been sitting for a while, perhaps the owners would be willing to loan them to you in the meantime?
 
Last edited:

CarefulDriver

Learning to Fly
Beginner User
Joined
Jun 13, 2019
Messages
184
Reaction score
155
I would be very interested to hear how Spectre stealth RDs are made stealth. We all know it's about reducing LO leakage, but how exactly is that done? Escort's TotalShield technology makes Redline EX completely stealth, do you know how that works?
 

Vancity23

(Lexus IS-F)
Advanced User
Lifetime Premium Member
Joined
Jun 11, 2017
Messages
4,420
Reaction score
5,194
Location
Vancouver, B.C.
This would be great to see. As we all know when the R7 came out, and while it indicated right on the box it was completely stealth, testers soon discovered it wasn't to all versions of Spectres. Appreciate understanding this more.
 

InsipidMonkey

Essential Monkey
Security
Advanced User
Premium Member
Joined
Mar 22, 2017
Messages
6,881
Reaction score
15,357
Location
New England
Escort's TotalShield technology makes Redline EX completely stealth, do you know how that works?
If you do a search for the M3 horn there are plenty of discussions about it, and you can read the patent here:
Basically: LNAs, horn aspect ratio, radar absorbing material, and conductive gasket between the two halves of the horn.
Post automatically merged:

2. Using a signal generator to sweep and profile exactly which frequencies each one scans for (what their cutoffs are down to the mhz)
3. What their LOs are
4. How strong leakage from their own LOs is
If it wouldn't detract too much from the main point of the video, this could also be used to educate on how superhet detectors work. Just characterizing the frequency ranges it is looking for would be great, and also figure out how it distinguishes between a frequency sweeping VCO and a CW microwave source like police radar.
 
Last edited:

Transporter

ModWight Transporter
Advanced User
Lifetime Premium Member
Joined
Jul 3, 2018
Messages
3,760
Reaction score
5,954
Location
In front of you but behind a Rabbit - Hot'Lanta,GA
"What would you guys like to see in a video about Spectres and VG2?"


Testing showing Absolute Radenso Theia Immunity! That is all I need to see. Doesn't matter how any of them actual work in detecting RDs because their are no CMs to fight it other then being immune/undetectable!

.
 

sdrawkcaB

Defender of Light 📶
Advanced User
Lifetime Premium Member
Joined
Mar 6, 2018
Messages
5,226
Reaction score
10,308
Location
Here
It would be cool to show the chain reaction - how instant on of a RADAR gun will trigger a RADAR detector, which will in turn trigger an RDD like the spectre.

Also show and visualize the area of detectability of common radar detectors. From the testing that Vortex has done over the years and published on Youtube, it seems that some detectors emit RFI in a very tight field of view per se, and will only be detectable by an RDD if the RDD is within this field of view (height, distance, and offset; X,Y, and Z). An extreme example of a detector which spews RFI in every direction (as opposed to a narrow FOV like the M3) would be an M4, M5, or M6 platform.

One more idea... Can a Theia detect another Theia?
 

aim4squirrels

Currently edging...
Advanced User
Lifetime Premium Member
Joined
Jul 21, 2015
Messages
3,162
Reaction score
5,807
Location
DFW Texas
A brief history of RDs design that led to the VG2, how the VG2 was foiled by RD manufacturers. Then how the Spectre was developed to pick up LO emissions, etc... Then how THEIA is reacting to it.
 

The Mighty Four Banger

Time efficient
Advanced User
Joined
May 25, 2018
Messages
850
Reaction score
920
Location
Texas
if you’re talking about detectors, including trying to see how well the VG2 shutdown features work (on cheaper detectors) and explaining the difference between VG2 immunity and Spectre immunity would probably help.
 

Eloi

Advanced User
Premium Member
Joined
Jan 13, 2013
Messages
4,613
Reaction score
4,443
To know if Theia can sniff the rdd , that would be awesomly practical in ban-territory .
Great idea to bring us thinking about ideas ...rarely seen : a company wants to know what we want to know ...just awesomely refreshing ...customers-driven-corp...i buy it Jason.
 

RedRocket

Lidar Shootist
Advanced User
Premium Member
Joined
Apr 10, 2012
Messages
4,455
Reaction score
5,245
Location
USA
I am going to have one of our engineers do a video with me about Spectres and VG2. I feel there is a lot of misinformation about them and it will be good to put our lab to use. We have a VG2, a Spectre Elite, and a Spectre 3.

I am planning on:

1. Interior pics
2. Using a signal generator to sweep and profile exactly which frequencies each one scans for (what their cutoffs are down to the mhz)
3. What their LOs are
4. How strong leakage from their own LOs is

What else do you guys want to see?
1. What is their Noise Floor & the SNR numbers ?
2. What is the BW & Scan Rate of the swept frequency(~11GHz) range used searching for RD LO leakage ?
 

Jon at Radenso

Manufacturer
Advanced User
Premium Member
Manufacturer
Joined
Oct 9, 2012
Messages
1,908
Reaction score
14,210
Age
31
Good stuff guys, will try to answer as much as time allows. Starting to shoot now. Hopefully be ready tomorrow. Vg2 is interesting inside, diagonally mounted horn.

IMG_20200227_141914.jpg
 

samq45

Advanced User
Lifetime Premium Member
Joined
Jul 5, 2011
Messages
1,499
Reaction score
2,145
Location
Saratoga, NY
Good stuff guys, will try to answer as much as time allows. Starting to shoot now. Hopefully be ready tomorrow. Vg2 is interesting inside, diagonally mounted horn.

View attachment 140467
Who makes the horn for both of the units? It is a unique design or is there a detector maker that supplies/supplied them? For some reason I thought some of the original horns were made by a detector company, but I could be totally wrong.

Are there a lot of differences between the horns on the newer and older versions of the spectre?

If the horn were perfectly horizontal or vertical would that hurt or help detection for the VG-2, what was the advantage of the 45 degree mounting?

Not a question I care too much about - but can you add a horn extension to them to extend the range (like the ones sold for the Stir)? I would think so, but I assume more tunnel vision.

I have lost a V1 to VG2 and another to a Spectre.
 

Riptide

Recovering M3 Addict
Advanced User
Premium Member
Joined
Oct 29, 2010
Messages
4,439
Reaction score
2,731
Not a question I care too much about - but can you add a horn extension to them to extend the range (like the ones sold for the Stir)? I would think so, but I assume more tunnel vision.
They make a horn extension specifically for the Elite to make it more directional.
 

samq45

Advanced User
Lifetime Premium Member
Joined
Jul 5, 2011
Messages
1,499
Reaction score
2,145
Location
Saratoga, NY
They make a horn extension specifically for the Elite to make it more directional.
I thought I remembers such a thing, but its been a while.
 

RedRocket

Lidar Shootist
Advanced User
Premium Member
Joined
Apr 10, 2012
Messages
4,455
Reaction score
5,245
Location
USA
Who makes the horn for both of the units? It is a unique design or is there a detector maker that supplies/supplied them? For some reason I thought some of the original horns were made by a detector company, but I could be totally wrong.

Are there a lot of differences between the horns on the newer and older versions of the spectre?

If the horn were perfectly horizontal or vertical would that hurt or help detection for the VG-2, what was the advantage of the 45 degree mounting?

Not a question I care too much about - but can you add a horn extension to them to extend the range (like the ones sold for the Stir)? I would think so, but I assume more tunnel vision.

I have lost a V1 to VG2 and another to a Spectre.
Tough break losing 2 RDs to the damn things.
The 45 degree mount of the Horn is a clever way to help detect "incoming" cross-polarizations from RD leaky LO's. There is modest received signal loss by doing this, but the Spectre is sensitive enough to sniff both a weaker Horiz. and/or Vert. emission of an RD passing nearby.
 
Last edited:

protias

Retired CM enthusiast / Train Horn Advocate
Advanced User
Premium Member
Joined
Oct 29, 2010
Messages
21,845
Reaction score
13,284
Location
WI
Can a Spectre detect another Spectre?

Can a Spectre detect a radar gun (probably not, but I'm just curious)?

What distance can it acquire X RD?
 

Godowsky17

PSL +5
Intermediate User
Joined
Apr 24, 2019
Messages
540
Reaction score
1,288
Location
NY
Would be awesome to show Theia is immune, assuming you have a developed enough prototype to demonstrate that. Even if not, I'm sure a look into the internal operation of the Spectre will be informative and I'm looking forward to seeing it.
 

GotWake

Speed Kills
Advanced User
Joined
Jun 4, 2011
Messages
9,690
Reaction score
11,114
Location
NC
It would be funny if you guys can detect the RDD from a reasonable distance. The radar detector detector detector.
 

Discord Server

Latest threads

Latest posts

Forum statistics

Threads
83,503
Messages
1,268,801
Members
21,073
Latest member
Kingbud
Top