CR95/CR97 - Configuration Settings Discussion

Marty K

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#1
Hi, all.
I wanted to start a separate discussion in regards to the various settings of the Whistler CR95/CR97, and also to share responses from their official support.
So here are 2 quotes from Whistler within the past few days in regards to BSM filtering and Ka falses that are actually K falses. This also covers the concern about delayed reactivity if using TFSR:
-------------------------------------------------------------------
"Martin,

TFSR does not add 1 second or more of delay, it is approx 500~550ms.
Filters can also be used in conjunction with TFSR as each additional filter adds approx 100ms so the customer is in control of the setting therefore the delay.

A combination of TFSR and the maximum Filter is in the area of 1 seconds however you will find that there is no need to utilize all of these in order to be effective. Personally I use TFSR ON, XK Flter 2, Ka FIlter 2 then I set the AFSPD to 40. Because the AFSPD is set to 40 the unit will use my selections when driving above 40 but will use the maximum filtering when driving below 40.

As the CR97 has 5 filter, if you are concerned about reactivity from quick trigger, try TFSR OFF and experiment with XK Filter 3, 4, or 5 and Ka Filter 2, 3, 4, or 5 to find the right balance of filtering vs band ID vs reactivity.

--

Thank you,
Whistler Customer Support"
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"Martin,

Actually, we sweep X, K, and some of Ka band at the same time in order to be more efficient with time management. For CW systems used by law enforcement for speed measurement, this is not an issue but when dealing with these newer FMCW systems used for monitoring traffic flow, traffic speed, and also used in vehicle collision avoidance systems, this can cause confusion with the expected signatures and increase the possibility of an incorrect band ID.

In general a bad band ID if it occurs will favor the higher priority band.
As for 34.7, that is scanned separately from X and K band and 34.7 does hold a priority over most alerts with the exception of Laser.

I find TFSR ON, XK Filter 2, Ka Filter 1 to be a good balance for me to control falsing and maintain a reasonable reactivity but you may wish to experiment as I had mentioned earlier."
--------------------------------------------------------------------

So there it is, are least we have some insides of how the detector works in technical terms, and it is a good baseline to start with.

In addition, I did drive this morning with K filter 4 and Ka filter 2 (TFSR OFF), and I must say that it was a nice surprise - NO falses in moderate traffic. Same drive I normally get 8 to 10 falses from BSM (confirmed, as I have FDSr ON), of which 3 or 4 are displayed as Ka, and that is pretty consistent (daily occurrence). I know it's too soon to jump to conclusions, but it does look promising. Next test will be K filter 3, Ka filter 1.
 

Kennyc56

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#2
Hi, all.
I wanted to start a separate discussion in regards to the various settings of the Whistler CR95/CR97, and also to share responses from their official support.
So here are 2 quotes from Whistler within the past few days in regards to BSM filtering and Ka falses that are actually K falses. This also covers the concern about delayed reactivity if using TFSR:
-------------------------------------------------------------------
"Martin,

TFSR does not add 1 second or more of delay, it is approx 500~550ms.
Filters can also be used in conjunction with TFSR as each additional filter adds approx 100ms so the customer is in control of the setting therefore the delay.

A combination of TFSR and the maximum Filter is in the area of 1 seconds however you will find that there is no need to utilize all of these in order to be effective. Personally I use TFSR ON, XK Flter 2, Ka FIlter 2 then I set the AFSPD to 40. Because the AFSPD is set to 40 the unit will use my selections when driving above 40 but will use the maximum filtering when driving below 40.

As the CR97 has 5 filter, if you are concerned about reactivity from quick trigger, try TFSR OFF and experiment with XK Filter 3, 4, or 5 and Ka Filter 2, 3, 4, or 5 to find the right balance of filtering vs band ID vs reactivity.

--

Thank you,
Whistler Customer Support"
--------------------------------------------------------------------
"Martin,

Actually, we sweep X, K, and some of Ka band at the same time in order to be more efficient with time management. For CW systems used by law enforcement for speed measurement, this is not an issue but when dealing with these newer FMCW systems used for monitoring traffic flow, traffic speed, and also used in vehicle collision avoidance systems, this can cause confusion with the expected signatures and increase the possibility of an incorrect band ID.

In general a bad band ID if it occurs will favor the higher priority band.
As for 34.7, that is scanned separately from X and K band and 34.7 does hold a priority over most alerts with the exception of Laser.

I find TFSR ON, XK Filter 2, Ka Filter 1 to be a good balance for me to control falsing and maintain a reasonable reactivity but you may wish to experiment as I had mentioned earlier."
--------------------------------------------------------------------

So there it is, are least we have some insides of how the detector works in technical terms, and it is a good baseline to start with.

In addition, I did drive this morning with K filter 4 and Ka filter 2 (TFSR OFF), and I must say that it was a nice surprise - NO falses in moderate traffic. Same drive I normally get 8 to 10 falses from BSM (confirmed, as I have FDSr ON), of which 3 or 4 are displayed as Ka, and that is pretty consistent (daily occurrence). I know it's too soon to jump to conclusions, but it does look promising. Next test will be K filter 3, Ka filter 1.
All killer info! Looking forward to you getting some "real "alerts set up like this! When @VariableWave and I tried testing my 95 set up very close to what you're describing, there was a big penalty in lost range on 35.5 C/O. I still haven't had a chance to test my 97 yet out in the field, but hopefully these filter settings won't affect it as much.
 

Marty K

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#3
All killer info! Looking forward to you getting some "real "alerts set up like this! When @VariableWave and I tried testing my 95 set up very close to what you're describing, there was a big penalty in lost range on 35.5 C/O. I still haven't had a chance to test my 97 yet out in the field, but hopefully these filter settings won't affect it as much.
I have the same concern about the Ka range, but I will hold onto the Ka filter 1 and K filter 3 as long as I can in order to verify the Ka range detection. Hope not too many falses will be present...

--- DOUBLEPOST MERGED ---

I have the same concern about the Ka range, but I will hold onto the Ka filter 1 and K filter 3 as long as I can in order to verify the Ka range detection. Hope not too many falses will be present...
I had 5 falses on my way home with K 3 / Ka 1 filters. All were K, all BSM confirmed. It was pretty nice with the FDSr ON and its double beep, then auto mute. No Ka falses. Whenever these results prove to be consistent (I'd give it a week), I will turn OFF the FDSr, so the detector will get as quiet as it can get...
 

JohnRock

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#4
I’m satisfied with my Whistler CR97.

I knew what I was buying when I bought it.

I wanted the geiger counter of all radar detectors.. pick up everything police or not. true and false

It can pick up a fart at 6 miles.. or quite when you need it..

I’m mostly into Police scanners but it’s the same concept.. Different radar detectors detect different things based on concept..



All good
 

Marty K

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#5
I’m satisfied with my Whistler CR97.

I knew what I was buying when I bought it.

I wanted the geiger counter of all radar detectors.. pick up everything police or not. true and false

It can pick up a fart at 6 miles.. or quite when you need it..

I’m mostly into Police scanners but it’s the same concept.. Different radar detectors detect different things based on concept..



All good
@JohnRock,
Thank you for your input here!
That is a great point about concepts, and I am completely agree with it. I am new to detectors' world, and this is my first unit since 10 years ago (when I had a very cheap cobra for couple of years and 2 speeding tickets to go with it). I do not have a base to compare with other brands, and I do not believe in the idea that there is a best detector for all. There are definitely better ones, but at the end there is one that best works for you and your expectations.
The reason I picked up this Whistler was the FDSr feature and its ability to confirm the alert source (because I did read plenty and more than enough in regards to BSM falsing, sensitivity, reactivity, and all). What I really like is the granular filtering options. Many other detectors just have on and off. It's amazing how much difference 0.1 or 0.2 seconds make. By fine tuning those, you get a very good balance between reaction and quietness.
The only thing that threw me off-track was the lack of tech info on how the CR97 works in the background. But with great help here in the RD Forum, and e-mailing the vendor support, I now have much better understanding on how to properly configure it and get the best of it...
 
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JohnRock

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#6
@Marty K ... I bought the Whistler CR97 for FSDr also. I purchased it for driving up to northern Michigan with low traffic and mostly older cars and trucks with no BSM issues. I have three radar detectors for different driving situations. Radenso Pro M for city driving.. Uniden R3 for highway driving ..Whistler CR97 for picking up everything the other two don’t when in FSDr mode. .. it’s a perfect harmony.
 
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Marty K

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#7
@Marty K ... I bought the Whistler CR97 for FSDr also. I purchased it for driving up to northern Michigan with low traffic and mostly older cars and trucks with no BSM issues. I have three radar detectors for different driving situations. Radenso Pro M for city driving.. Uniden R3 for highway driving ..Whistler CR97 for picking up everything the other two don’t when in FSDr mode. .. it’s a perfect harmony.
It does sound like you have the perfect solution. I have heard that the Radenso has probably the best BSM filtering of all, and its range is also one of the longest.
Have you had any recent I/O with the CR97? I am still yet to have a good encounter and see its capability. Almost all the sources I've had so far have been moving C/O, up until yesterday. I will post video later on, but a quick spoiler that it was not what I expected, and not sure what to make out of it. Basically I did not get alert till I was pretty much onto the LEO, and it was a 2 or 3 second brief Ka with no ID, so I am sure it was a I/O. There was a chance he was targeting the opposite traffic, as he was facing away, in the grass median...
 

Kennyc56

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#8
I have so many detectors now it's hard to keep up with them all! If they will just get the K- Ka band mixup solved, the CR97 will be right up at the top of my list! I have a blast running it, even though I have 2 R1's at the top of that list!
 

Marty K

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#9
Here's the I/O encounter I had yesterday:


Not sure what to make out of it, there was really no range at all. Was it forward facing (target the oncoming/opposite direction traffic)? Was the LEO very selective? Was my detector blind? I have TFSR OFF, FDSr ON, K 3, Ka 1 filters. I did have false K (BSM confirmed) several seconds before the Ka detection. Is it possible the detector's performace was impacted by the K false? Or was it another K false that alerted as Ka, and the LEO actually never used radar?
Any input is appreciated.
 
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Kennyc56

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#10
Here's the I/O encounter I had yesterday:


Not sure what to make out of it, there was really no range at all. Was it forward facing (target the oncoming/opposite direction traffic)? Was the LEO very selective? Was my detector blind? I have TFSR OFF, FDSr ON, K 3, Ka 1 filters. I did have false K (BSM confirmed) several seconds before the Ka detection. Is it possible the detector's performace was impacted by the K false? Or was it another K false that alerted as Ka, and the LEO actually never used radar?
Any input is appreciated.
That's the reason this has to be fixed! Once these Whistlers lock onto a signal, they are like a pitbull! They don't have Ka priority like all the other really great detectors do! I can shoot my 97 with K band and switch it to Ka band and it will keep showing the alert as K band until the alert stops! As you can imagine, this is going to lead to a VERY bad situation! That also works the other way as well, if it starts as Ka band, it won't change till that alert stops.
 

Marty K

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#11
That's the reason this has to be fixed! Once these Whistlers lock onto a signal, they are like a pitbull! They don't have Ka priority like all the other really great detectors do! I can shoot my 97 with K band and switch it to Ka band and it will keep showing the alert as K band until the alert stops! As you can imagine, this is going to lead to a VERY bad situation! That also works the other way as well, if it starts as Ka band, it won't change till that alert stops.
That sucks. I had the sensation that something was off with this detection. Do you have any idea if Whistler is actually aware of this, and if they are doing something about it? Any word from @Bossdad71?
 

Kennyc56

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That sucks. I had the sensation that something was off with this detection. Do you have any idea if Whistler is actually aware of this, and if they are doing something about it? Any word from @Bossdad71?
On your detection in your video, welcome to my world! I get detections even shorter than that all the time here in NC! I would say that was forward facing at point blank range. Your CR97 will either beat or at least match any detector ever made on that type of alert! My 95 and 97 are the best detectors I have ever seen against I/O and Q/T shots! They can even hang with my 3.872 V1 with Ka guard off! I haven't had time to do a video for @Bossdad71 and Whistler yet, but it's coming very soon!
 

Kennyc56

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#14
Off-topic, but did we lose all the likes for good, or they are coming back??
That's a good question, I sure hope not!
 

Marty K

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On your detection in your video, welcome to my world! I get detections even shorter than that all the time here in NC! I would say that was forward facing at point blank range. Your CR97 will either beat or at least match any detector ever made on that type of alert! My 95 and 97 are the best detectors I have ever seen against I/O and Q/T shots! They can even hang with my 3.872 V1 with Ka guard off! I haven't had time to do a video for @Bossdad71 and Whistler yet, but it's coming very soon!
I like the sound of that. I honestly am not obsessed with extreme range in regards to my CR97 (I know that range is critical for I/O and Q/T, and I understand the need of it). I much rather have just about enough range to react safely, but actually get an alert in first place...
 

Choose Life

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#16
can pick up a fart at 6 miles.. or quite when you need it..
Not in tree lined double S curves on IO 35.5
My R3 could pick up CO 34.7 in the desert over 10 miles
But ive seen it reduced to 800ft when the signal is triple obstructed
 

Kennyc56

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I like the sound of that. I honestly am not obsessed with extreme range in regards to my CR97 (I know that range is critical for I/O and Q/T, and I understand the need of it). I much rather have just about enough range to react safely, but actually get an alert in first place...
They are also great at extreme range! Remember the 4 mile alerts I got on my videos against 35.5? That was with my 95, the weather/ holidays have kept me from testing my 97 on our long course. My R1's are killers at extreme crazy off axis and all out range however! They are the kings at long range!
 
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Marty K

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#18
They are also great at extreme range! Remember the 4 mile alerts I got on my videos against 35.5? That was with my 95, the weather/ holidays have kept me from testing my 97 on our long course. My R1's are killers at extreme crazy off axis and all out range however! They are the kings at long range!
Yes, I remember those videos. In my area there are not many long flat stretches of highway like that, so I rely on early enough detection around curves and hills.
 

Bossdad71

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#19
That's the reason this has to be fixed! Once these Whistlers lock onto a signal, they are like a pitbull! They don't have Ka priority like all the other really great detectors do! I can shoot my 97 with K band and switch it to Ka band and it will keep showing the alert as K band until the alert stops! As you can imagine, this is going to lead to a VERY bad situation! That also works the other way as well, if it starts as Ka band, it won't change till that alert stops.
im guessing he saw you in that left lane and took a quick peek at your speed
 

Marty K

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#20
im guessing he saw you in that left lane and took a quick peek at your speed
Thanks for the input, @Bossdad71!
I was not speeding (well, I was, but 5-6 miles over), because that spot is a well known speed trap. So I did intentionally stayed on the left lane as soon as I saw a parked vehicle in the far distance. Wanted to see if there will be any early detection...
On a side note, this was the FIRST time in the last 2 months (since I got my CR97) that I personally saw a LEO on that spot. Before then, I would see them at least once or twice a week there. Go figure.