NRC peripheral??

[Varmonter]

Does anyone make a Noise Reduction Circuit in a peripheral box. That one could put in line like a watt meter? Is such a box possible for both rx and tx??
Seems to me it would be a hot seller.

 

[707ways2Sunday]

Does anyone make a Noise Reduction Circuit in a peripheral box. That one could put in line like a watt meter? Is such a box possible for both rx and tx??
Seems to me it would be a hot seller.

Only thing I’ve seen close to that are QRM eliminators. Need 2 antennas to work and ability to incorporate a PTT bypass. Good idea though

 

[slowmover]

West Mountain Radio

See my posts in search.

I’ve used the integrated DSP Speaker for ten years. Currently in pickup with the Lincoln. Ive a thread on it, and a number of posts elsewhere.

The separate outboard device with a DRIVER EXTREME DRX-9010 Speaker is “ultimate” for a non-NRC radio.

I’ve the circuit board version sitting here waiting to go into a GALAXY 99V2 or 959 given funds free up for a DDS-VFO conversion (see thread).

It’s flat easier to choose an integrated NRC radio for cost and performance value.

My $280 AT5555-N2 with $50 DX speaker outperforms the $300 Lincoln & $225 DSP speaker & $50 Digi-Mic where comparable.

$330 or nearly $600?

What radio are you running? You hiding a GALAXY 95T in there?





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[Varmonter]

West Mountain Radio

See my posts in search.

I’ve used the integrated DSP Speaker for ten years. Currently in pickup with the Lincoln. Ive a thread on it, and a number of posts elsewhere.

The separate outboard device with a DRIVER EXTREME DRX-9010 Speaker is “ultimate” for a non-NRC radio.

I’ve the circuit board version sitting here waiting to go into a GALAXY 99V2 or 959 given funds free up for a DDS-VFO conversion (see thread).

It’s flat easier to choose an integrated NRC radio for cost and performance value.

My $280 AT5555-N2 with $50 DX speaker outperforms the $300 Lincoln & $225 DSP speaker & $50 Digi-Mic where comparable.

$330 or nearly $600?

What radio are you running? You hiding a GALAXY 95T in there?

View attachment 171871



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Ha.. No I have a very old rci 2970n2..The speaker you mentioned 9010 seems designed
well but lacking any dsp..the west mountain radio you mentioned has a speaker albeit 3x the price but has dsp filtering

CLRspkr ClearSpeech® DSP Noise Reduction Speaker - West Mountain Radio

Amplified loudspeaker with ClearSpeech® adaptive DSP noise reduction for voice and CW. Recognizes intermittent nature of CW and allows it to pass noise free. Continuously variable adaptive filter noise reduction, 0 dB to -17 dB. Contains 4-in. loudspeaker with 7.5 watts RMS maximum amplifier...

www.westmountainradio.com

They also have a box with an added tone knob for the same price..I have a motorola speaker which is pretty good..So the box might be a better option and I wouldn't have to run power to the back of the truck..

 

[slowmover]

The DX-901 plus W-M control device is ultimate.

I have the same sort of extension speaker as the Motorola (KENWOOD KES-5) and it won’t sound nearly as good.

The 2970 is a great radio from the old days. Always wanted one. But the level of “white noise” to which to have to listen was atrocious. Why I held off.

The extra few bucks for the 901 speaker you’ll be glad you spent. The tone control on the W-M outboard DSP in conjunction will put you into a new universe. That you’ll hear more and better is the thing. It’s High-Fi versus git-er dun.

How the other man is speaking is more important than realized once it’s available. No more straining once noise stripped away (or the brain filling in the gaps; most don’t realize how much this occurs).

Use the Motorola as the speaker for The Campground Radio. What you can hang outside of the trailer without worry over damp, heat, cold or some rain. It’s part of my set-up that way.

I have the second one mounted in the pickup under drivers seat. If wanted I can switch it in and listen to the NWS weather broadcast from forty yards with the door open and Cummins idling away. But it’s not as good while in motion.

And that’s from a radio far easier to which to listen than a 2970.

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Get that feedpoint toroid choke installed. And the MyAntennas RF Choke onto back of radio.

The whole package will make you think it’s a new radio in audio terms. What you can hear, and how well it’s heard. The coax system upgrades will impress listeners, not just you.

You’ll be ready for mic upgrade too

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[Varmonter]

The DX-901 plus W-M control device is ultimate.

I have the same sort of extension speaker as the Motorola (KENWOOD KES-5) and it won’t sound nearly as good.

The 2970 is a great radio from the old days. Always wanted one. But the level of “white noise” to which to have to listen was atrocious. Why I held off.

The extra few bucks for the 901 speaker you’ll be glad you spent. The tone control on the W-M outboard DSP in conjunction will put you into a new universe. That you’ll hear more and better is the thing. It’s High-Fi versus git-er dun.

How the other man is speaking is more important than realized once it’s available. No more straining once noise stripped away (or the brain filling in the gaps; most don’t realize how much this occurs).

Use the Motorola as the speaker for The Campground Radio. What you can hang outside of the trailer without worry over damp, heat, cold or some rain. It’s part of my set-up that way.

I have the second one mounted in the pickup under drivers seat. If wanted I can switch it in and listen to the NWS weather broadcast from forty yards with the door open and Cummins idling away. But it’s not as good while in motion.

And that’s from a radio far easier to which to listen than a 2970.

.View attachment 171901

View attachment 171902

Get that feedpoint toroid choke installed. And the MyAntennas RF Choke onto back of radio.

The whole package will make you think it’s a new radio in audio terms. What you can hear, and how well it’s heard. The coax system upgrades will impress listeners, not just you.

You’ll be ready for mic upgrade too

.

You are certainly good at spending my money.. I am going to wind my own chokes for both ends ..just because ..The wm box and wm speaker are both currently not in stock.. nothing on ebay..
I did find a new in box rig runner on ebay with cable and 30 extra pole connectors.. this will help tidy up the wiring which is now a Fustercluck around my stick shift.
Between the gps the bird dog my watt meter/swr and USB for phone.and soon to be dsp..
It's a tangled web..

 

[slowmover]

BHI is another manufacturer. I don’t have experience with them past some passive devices, but you’ll find reviews out there.

SSB is where to make the change to latest circuitry radio.

Clay Thompson of Clays Radios in San Antonio is where I’d send a 2970 needs a go-over. If you’re traveling thru, he’s there M-Th weekdays. I’ve used his services almost 30-years. By the book and “conservative”. Plenty of parking (Petro Truck Stop across road; a very good Blue Beacon, also).

Another is Rays in West Memphis. Past that it’s Overclocked outside Gary, IN, Chris at Superior in CA and a host of other guys don’t advertise for CB work.

Can’t get what the latest radios deliver, but they can usually be tightened up.

IMO, SSB is the test for the radio.

Am already looking forward to your thread with images and descriptions of how you wound toroids for both ends of the coax. “The report”. It’s needed, and would be a service to DIY.


— Was today outside washing the TT. 88’ around. Made it halfway. (4) steps to accomplish every few feet. Been quite awhile.

The “Before” pic.



Cold front with high winds expected tonight.
Maybe rain to help the rinse job.

Have to get onto roof for clean-up, inspection & repairs so I went over my telescopic ladder last week. Am told I can borrow a fairly high-power gasoline pressure washer for that last part after Acid/Alkaline scrub. 5005-Anodized is a different critter.

As to radio I’ll be making some measurements for a tilt-up. And where to set a yagi for better cell reception. Campground Radio is about the only use for a WILSON Lil Wil and I’ll probably use the BATT box on the tongue after JB WELD some steel sheet under lid.

All kinds of ways this site will spend your money. Check out the Uniden SDS-200.

.

 

[slowmover]

I’ve “loved” my 4005 Rig Runner. Have used it in many big truck installs.

That’s where I made the decision to acquire tools & supply for ANDERSON connectors. As I install, change, and remove radio rigs pretty often.

I’ve lately changed to the PD-75 as I’m not concerned with individually fusing components. It’s smaller footprint and higher amperage capacity have made it a winner for tight confines.

I’ve also used these two together to split up loads.

POWERWERX has an excellent catalog. Have gotten all sorts of stuff there.

 

[Varmonter]

The 4005 is the one I have coming.
I'll probably outgrow it ..but it was a steal (well it was discounted) on ebay..and came with extras..

 

[slowmover]

Came across this elsewhere.

DSP DNR Digital Filter

An in-line audio control

Pair it with DRX-901.

Given low price and difficulty obtaining W-M at this point looks worth a try.


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[slowmover]

Dial-in a MOBILE DSP Audio Device

I found a few videos of DSP DNR use, and:

1). Audio quality of the videos aren’t representative.

2). Time taken to set controls to a General Purpose setting is what will pay.

— Were I setting this up for AM 27.185 I’d want to do a go-over of worst conditions far rural from 1200-dusk to factor out the Metro problem; and,

— What’s most pleasant pre-dawn far rural as these two run the gamut of GP (factored for Metro).

Metro is such a bear and differs from one to another that I’d only want to adjust RFG & SQ to compensate.

In the map shown it’s being outside the darker colored areas, mainly. I’d want 75-miles plus from the darker areas in general (based on my experience).



This is also assuming one is East of Hadrian’s Wall: US-83



The Permian Basin has too much noise — as would some other routes with hi-volt, long-range electrical transmission — so (by map correlation) an ideal location would be IOWA parked along IH80 at one of many Interstate Rest Areas as E-W traffic to/from Chicago means many radios in use.

— Spend the night along location chosen having stopped by midafternoon for first part, and one is up a few hours pre-sunrise to conduct the second part.

I wouldn’t consider that device “tested” for mobile until I’d also chosen the right kind of DNR Test Range.

The low cost device isn’t going to measure up against a WEST MOUNTAIN RADIO CLEARSPEECH DSP device without some trial & error to get from it what’s best.

Being out of mountains is the other. Far West one is relegated to smaller areas in which to test. There are two approaches to Los Angeles, for example which might work; and someone more familiar with Seattle-to-Portland might have suggestions.



The challenge in mobile while Metro is not backing off too far with RFG & SQ. Knowing intuitively how my radio sounds otherwise having added DSP and dialed-in for GP.

These recommendations are how I learned to use the W-M speaker over many years. Trying to customize it for a metro becomes defeating as RFG & SQ changes may mean one has lost his edge for distance to capture that one warning he needs.

On a ClearSpeech it’s going to be between 10 & 12 oclock on the knob. I “know” what RFG & SQ will do for me re Metro combined with Skip. How far I can push it.

With this DSP DNR it’s going to be more complicated initially.

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[Varmonter]

Came across this elsewhere.

DSP DNR Digital Filter

An in-line audio control

Pair it with DRX-901.

Given low price and difficulty obtaining W-M at this point looks worth a try.

View attachment 172651
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Looks built like a vna..much less expensive than the other..