President Lincoln II+ poor audio

[N1EXA]

View attachment 124615

Look like it belongs there !

 

[slowmover]

Look like it belongs there !

Its not mine, but as the Lincoln is an exceptionally good radio, its double-din size is icing on the cake.

If we leave aside the frustrations of this thread I think we can all see how attractive this radio is for being at hand while going down the road.

 

[N1EXA]

Its not mine, but as the Lincoln is an exceptionally good radio, its double-din size is icing on the cake.

If we leave aside the frustrations of this thread I think we can all see how attractive this radio is for being at hand while going down the road.

Its good Multi Roll Radio But not my favorite in the shack - Id say my Galaxy Saturn is the flagship here with the Golden Eagle 3 as my Super Bowl
Monitor.

The Galaxy Saturn has the SDR mod so you can look at the Whole band minus the channel your on.



Pete N1EXA

 

[slowmover]

They’re a handy choice in mobile, eh?

 

[N1EXA]

They’re a handy choice in mobile, eh?

I love that the Lincoln 2 goes from 24.8 to 29.6 Mhz and the performance does not roll off. My Galaxy is tuned for 27.385 (Ch38) but is you crank down to CH1 you can see it does not have the reciever juice there. My Cobra 148 is in the same boat it may do Freeband but it dont like
being there. the Lincoln 2 Performs on 10 meters just as good as my Radio Shack HDX10 which is also marketed and the Magnum 10 meter.

The Lincoln 2 is a good size for a mobile install - Sombody was thinking when they designed it.

As for the Golden Eagle - Thats just a statement on the desk - As for an AM radio ill have to say she is still has the Crown~

Pete N1EXA

 

[iMONITOR]

Ok got the urge for this radio to use in my truck. Hooked it up in the house and the receive audio is bad! It sounds distorted, choppy and just plain uncomfortable to listen to no matter where I set the RF gain or volume. It transmits fine w good signal reports. I even tried an external speaker, same results.

Anyone here have this radio and can share their experience?

Might the fact that you're using a transceiver designed for 10 meter on 11 meters have something to do with it? "Bad audio, distorted, choppy and uncomfortable to listen too" is pretty much the nature of C.B.

 

[n7lrg]

No, the receive is same anywhere I select. I've found out from the tech at President Electronics that the receive audio board is digital and he admitted is is not as good as the McKinley I use.

 

[n7lrg]

I found a response on another forum. I've asked the poster to send me details as to what p/n he ordered and any specifics he can share besides just replacing the component. Here is the post.

"We solved the issue.
The audio amplifier IC (TDA2003) is garbage.
Removed the stock UTC Unisonic Technologies Company component and replaced with one from ST Microelectronics."

 

[MrTang]

think i stuck a resistor on one of the leads on that in the past..Lifted the lead and put it in line. Still junk audio mind. Can't remember where i found that info or what exactly it was supposed todo but ties in with that chip. Gonna see if i can change it then.Thanks for that.
Need to change all the trimmers also, they going erratic, cheap junk, reckon damp got to them.
Power levels jumping.
Been sitting in the cupboard for months now.

 

[n7lrg]

I love that the Lincoln 2 goes from 24.8 to 29.6 Mhz and the performance does not roll off. My Galaxy is tuned for 27.385 (Ch38) but is you crank down to CH1 you can see it does not have the reciever juice there. My Cobra 148 is in the same boat it may do Freeband but it dont like
being there. the Lincoln 2 Performs on 10 meters just as good as my Radio Shack HDX10 which is also marketed and the Magnum 10 meter.

The Lincoln 2 is a good size for a mobile install - Sombody was thinking when they designed it.

As for the Golden Eagle - Thats just a statement on the desk - As for an AM radio ill have to say she is still has the Crown~

Pete N1EXA

Yes on the size. This radio as well others like my McKinley are "DIN" meaning they are sized for dashboard installation.

 

[Egroupsales]

I found a response on another forum. I've asked the poster to send me details as to what p/n he ordered and any specifics he can share besides just replacing the component. Here is the post.

"We solved the issue.
The audio amplifier IC (TDA2003) is garbage.
Removed the stock UTC Unisonic Technologies Company component and replaced with one from ST Microelectronics."
View attachment 131039

n7lrg - I’m having the same problem with 2 President Lincoln 2 pluses on my bench. I went ahead and upgraded the audio chip to the same one mentioned. That’s the same one Ranger uses. I found little to no difference. I was wondering if you found anything new. It’s frustrating having two radios with that issue.

 

[n7lrg]

I've not heard anything from the guy who posted. I didn't see a part number, only the company he got it from. Was it the same part number? There's GOT to be a tech somewhere whose resolved this problem. I feel your pain. Signed, Desperate in Wa.

 

[Egroupsales]

I've not heard anything from the guy who posted. I didn't see a part number, only the company he got it from. Was it the same part number? There's GOT to be a tech somewhere whose resolved this problem. I feel your pain. Signed, Desperate in Wa.

I replaced it with the STMicroelectronics TDA2003.

 

[n7lrg]

Oh got it. Same p/n but different supplier, thanks!

 

[slowmover]

7-3/32 x 1-23/32
180-mm x 50-mm
Single DIN Size

PRESIDENT Lincoln = 170mm x 52

ANYTONE AT-5555-NII
200mm x 60mm

Newer board with greater frequency stability and digital signal processing (NRC) on TX & RX.

I like — very much — the Lincoln I bought two years ago. But six months ago the world changed.

The radio linked or it’s CRT, Stryker cousins with the same Qixiang board changed the game: integrated DSP.

Never have run a mobile CB with DSP?

— Then your opinion on CB performance isn’t worth the time. Is ignorant of what’s possible.

That hyperbolic b-slap aside (but, true), for less than the price of a Lincoln one of these newer radios will serve at a “better” level of performance re voice.

I’m sad at the problems y’all state for audio, mine seems fine and I love it. But mobile CB is about two things:

1). Distant Early Warning
2). Overcoming the other mans radio rig deficiencies.

My Lincoln isn’t pleasant to listen to without a WEST MOUNTAIN RADIO CLEARSPEECH DSP SPEAKER. It cannot adequately filter what it receives (same as all other CB or Export Radios. Until now)

My Lincoln plus the DSP speaker brings my cost to over $500 and involves yet more wiring and a distribution block I could avoid with the newer radio.

In fact I could buy two of them of for less than the one I have once accessory costs are factored.

I expect to buy 2-3 of these newer radios this coming year. Move the current front-line radios to back-up status. Make gifts of the third string choices. Move the W-M speaker to the base station.

To clean up your mobile, try this (below) and a feedpoint or sleeve choke. Across a KES-5 it’s suitable clean-up for the Lincoln as is (without DSP).



Note that I run a CB nearly 3,000-hours annually. Effective, intelligent use supports my income and my safety risks. You’ll find others who do the same, but, . . without DSP they’re as ignorant as all the rest. Ticket-holders or not, makes no difference.

Being able to hear at margins one didn’t know existed is the difference for one’s family’s safety en-route. I speak with others the men around me can’t hear, much less ask about distant road conditions on which I’ve just heard an important report.

Thus, to effectively Hear & Get Heard — when a few seconds is all one has — I recommend switching attention to newer tech. The Linc ain’t going anywhere. Get the fixes as they come along. Mines not leaving, just getting re-assigned. As the roads are worse daily per USDOT stats. Serious degradation and worsening by the month.

— There are more videos I could link, but they don’t do justice to pulling faint voices out of a noisy background to fulfill Conditions 1 & 2 above.

Speaking here as a friend to fellow enthusiasts.

.

 

[slowmover]

A Galaxy 959b AM/SSB is what I run in the big truck as it’s Receive is such I can easily distinguish near from far (the Linc makes everyone equi-distant), so the testing phase of a new board radio will be tedious.

That big S-Meter is one useful tool.

Big truck antenna systems aren’t anywhere near what my pickup can achieve with a quarter-wave or PRESIDENT Texas 1800 at roof-center. The Linc went to my pickup as it’s the more capable antenna system

But tell me I can greatly simplify a big truck install (two days unpaid work), and I’m all ears.

The Galaxy 959 is the last (and greatest) of the AM/SSB mobile CB radios. Properly aligned its a great pleasure to use on AM-19. Appears to now be out of production.

But pair it up with a West Mountain Radio CLEARSPEECH DSP Speaker, and it’ll give anything a run for the money. Out at the limits of the antenna system is the only place where the Linc really shines..

No, the 959 sure ain’t DIN-sized.
It’s a real radio. A side mic


Knowing how to use the radio trumps minor tech superiority. A radio that “talks” gets attention.

If you come across a new or lightly used one, grab it to chat with your locals. Distinct Galaxy audio gets responses as with Stryker or Magnum. When it matters you want a response. (Audio counts: other men unconsciously treat “big audio” as stand-in for character).

Astatic 636L mic. RK56 if your voice is a little reedy.

The 959 time may be past (or a 99V2 or 86V), but don’t have regrets on not having one at your base (or your re-habbed 1979 Dodge Ram). 10-15/years service is common.

No telling how reliable newest tech may be.
Or can be repaired.

Don’t believe stuff about SSB wander.
Just tweak the control.
Or get a Yaesu ft450d.

The 10 & 12 Meter stuff is nice . . but get 11-Meter well-covered for GP.

.

 

[RFI-EMI-GUY]

There are some 27 MHz bandpass filters on the market. The manufacturer sells them for all ham bands. One of those can help the receiver, and if used with an amp, keep harmonics at bay.

 

[Larry1275]

Just to clarify, it's what I'm hearing....other stations....blurty, not pleasant to listen to at all.

Yea i got sorry i got this radio not a good radio i put it back in the box....

 

[RFI-EMI-GUY]

Back in the 90's I bought a Realistic AM CB that had built in DSP (RS sold a cheap external DSP as well at the time) . I did not enjoy the sound, and exchanged it for the SSB radio at the time; TRC-465 which was a great radio, still kicking myself for selling it.

If you want great DSP consider the long out of production Timewave DSP599ZX which can be continuously tuned to however you want it to sound. I have even used it to clean up crappy analog Inmarsat recordings that were noisy and received using wrong RX bandwidth and heavily compressed.

 

[slowmover]

There are some 27 MHz bandpass filters on the market. The manufacturer sells them for all ham bands. One of those can help the receiver, and if used with an amp, keep harmonics at bay.

And they work well. They help.

11M Bandpass Filter



Audio reports are outstanding once installed with a radio like a Lincoln.

.