NRDSP Dual front vs rear sensitivity (1 Viewer)

Boozehound

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I wanted to post some informal results on my NRDSP installation. For too long I had the rear facing antenna in the cabin, looking out the back window from the front passenger seat headrest. The arrows were very slow to respond and this poor installation was a contributing factor. When I realized there was a small unpainted area at the bottom of my rear bumper cover I decided to mount the rear antenna right there. So the rear antenna must look through the bumper cover but not through metallic paint, just through black plastic. There is a bevel on the bottom of the bumper cover too. The front facing antenna is mounted non-stealthily in the front grill. It's far forward so as to prevent attenuation from the louvers/vents. The rear facing antenna is about 16.5" above ground while the front is 27.5". There is almost zero difference in sensitivity to 34.706 in my test. I'm not posting the location because it's my street. I have the Stalker angled about 20 degrees across the street and detection range is about .4 miles around a slight curve. The front starts picking it up traveling toward the source at about the same place the rear antenna loses it when slowly going away from the source. I no longer have concerns about attenuation from the bumper cover or the unit being too low to the ground.

Also, the NRDSP consistently picks up this "trap" a few hundred feet before my V1. That is true whether running only one detector with the other powered down or when operating both systems simultaneously. I'd like to test interference between the V1 and NRDSP but these interferences can be so random and difficult to even observe.
 

VariableWave

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I currently have the NRDSP in the grill and one interior inline with each other, and also one rear same height pointing out. When comparing the lower mounting equal to a WS mount, I gain early detection in most situations. Traffic and terrain do play a big role as to how soon a detection is picked up between the setup. Also, I have ran my NRDSP against the V1 and have not seen any issue thus far. When I have changed over to the R7, two times I did see the NRDSP putting the R7 to sleep in the time I have ran them. The R7 on 35.5 in clear roads of others, can provide up to 10 secs over the NRDSP equal level and about 5 sec in select bends and side obstructions like trees. I have come across I/O, and the R7 does provide nice early initial detection.

These have been initial play in the real world, and times they are ran separately with no change in range at the time of running in real encounters. Pending a group get together, as it has been rescheduled to see honest changes to post. Either way, the NRDSP does a nice job alerting in most situations that is C/O and I/O. The R3 does just edge out the NRDSP, just like my RL-O. Hopefully that reschedule happens soon @Kennyc56 and @Th3 Factory Freak , so we can challenge all our units mentioned here.
 
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Boozehound

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The R7 gave 10 seconds over the NRDSP? Wow! How fast were you going? Sometimes moving IO encounters have 200mph closure rates. That might be approximately 293 feet per second.

From the tests posted the R7 looks like the new range king. Which unit is your go to? I early adopted the DSP because Tom ran one heck of an intro price and I wanted the convenience of remote mounting and ALP integration. Mine often gives a few seconds on the V1 but I tend to keep the V1 for JBV1 and improved SA that the faster arrow response and all bandit frequencies displayed at once.

I'm watching the R7 and greatly appreciated user feedback. And who isn't anxiously awaiting a Radenso with arrows and accurate frequency display?
 

VariableWave

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Here is the up to 7 secs rounding a bend

NRDSP.. I started up the R7 after



















R7
 
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EightyFiveHundred

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For what it’s worth, I’m running a DSP low in my front grill, regular/early NR, high in my rear window, and R1 on a BlendMount.

On 34.7, my R1 will slightly out sniff my front DSP under certain terrain conditions.

My rear NR easily outperforms my R1.

9AF6629E-A0C8-488A-B24D-E71CB9FD077D.jpeg
 

Boozehound

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@VariableWave, you have two forward facing NRDSP units, one mounted low in the grill and a second in the cabin facing forward? Is your rear NRDSP in the cabin or low mounted behind the bumper cover? Do you think it was the close proximity of the cabin mounted NRDSP putting the the R7 to sleep? The random element makes it so difficult to know how much effect if any a cabin mounted detector will have on remote mounted units and vice versa. I'm going to study running the V1 with the remote DSP dual setup. But I have only a Stalker KA and an old Decatur K band to test with. I'm thinking I need to pick up a 33.8 and 35.5 for this.
 

VariableWave

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@VariableWave, you have two forward facing NRDSP units, one mounted low in the grill and a second in the cabin facing forward? Is your rear NRDSP in the cabin or low mounted behind the bumper cover? Do you think it was the close proximity of the cabin mounted NRDSP putting the the R7 to sleep? The random element makes it so difficult to know how much effect if any a cabin mounted detector will have on remote mounted units and vice versa. I'm going to study running the V1 with the remote DSP dual setup. But I have only a Stalker KA and an old Decatur K band to test with. I'm thinking I need to pick up a 33.8 and 35.5 for this.
Hard to honestly know how much an effect of any interference at that moment, when looking for an honest testing till one can repeat the test several times over. This is one reason I hadn't posted detection with all units in operations, as it opens the debate of a potential conflict/interference between units. When running the NRDSP interior, I am doing this with two vehicles. I have not seen any conflict with either NRDSP, and when running as a single unit, the range is the same.

The videos above, the NRDSP in cabin was running without the R7 and visa versa independently. Thegrill mount was installed a weekend after preparing for a meet up to test with others. Only thing I am missing is 33.8, as I have the ATR 34.7 and Decatur Select and Select II 35.5.
 

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