Your honestly and integrity is intact. I sent you the Asymod eBay description months ago and asked your opinion. You couldn't say either way as you hadn't had ever had one on your bench. That has obviously changed. Excellent clip. Mike. happy 2017 and we'll talk soon. Godspeed my friend.
Thank you Mike and your customer for doing this review. I do have one of the original motormouth maul boards just have not messed with it, I do know a lot of people that have high end receivers just for lessening to radios like this.
Mike Just a couple comments. I designed the original Mauldulator with MMM. I have seen people talk about 300% modulation and 20 and 30 kHz frequencies and of course these are both ridiculous. Anytime we mentioned anything remotely close to that, it was to show it had the headroom to achieve those things so usage at 5 KHz and 130% peaks was no challenge. In the first version of this, we did put in a filter at the end to cause a roll off at about 6 KHz. On the second version, we have no filter and tell the user they should provide that in their processing gear. We have abandoned the LM324 because of it's low gain bandwidth product. It would be interesting, if you still have one of these units you reviewed to look at the cross over distortion at the higher audio frequencies and see what it looks like. Something that claims high fidelity needs to have minimal crossover distortion. As for this competitor, I will give him credit for his talent at good documentation and slick videos. The quality of installation looks pretty good too. As to his integrity and honor, his actions speak for themselves
TinkTron Not sure if you will get this message, but in case you do, I must say I am disgusted that someone would make money from ripping you off. To be honest, I reverse engineered your original design for my own personal use and the schematics are locked away forever. I even informed John that I did it. Thank you so very much for bringing such fun to the CB world. I have a lot of respect for you. Respectfully, Ken (KP68)
Good Deal , i don't know crap about that & I sure don't like mods in any kind of radios ! I am just trying to learn some things . I sure am no tech, but i do like the old Tube type the best , but i do own some solid state stuff tho & i am glad you said what you did on being HONEST ! That means a lot to me . Thanks again Richard.
You can't "steal" a concept. And there is nothing wrong with improving upon a concept. MMM has a very unique sound and I would credit him with the knowledge and experience in pioneering that sound and with engineering the circuit to do so. That said you can't fault someone for taking basic well known electronic concepts and putting together a circuit that allows you to modify an audio signal. And potting a circuit board has been around since the 70's if not before - which is sort of the same thing as wiping off identifying chip numbers. Your video is informative and well done on the other hand
There is no claim that the concept was stolen. It is the implementation that was stolen. Asymmetry on AM has been around for half a century, but the circuit to accomplish it in this instance was taken and no credit given. Actually, the guy flat out said that it was not a copy and MMM bought one and proved it was.
I hate to see these radios hacked up. I realize his work is neat and well done. But yeah I said but. This radio is a monster right out of the box. I can see a SSB alignment or maybe a few minor tweaks. I have never owned a radio that matched this one from the first words spoken into the mic. This radio is loud on AM and a screamer on SSB. What more can you ask for.
He said, she said, whatever...MMM is a good person, but failed to bring this idea to market. Jose in Miami took the bull by the horns and produced a highly professional circuit and developed a product that is superior to none. I run an RCI99v2 he added an outboard Standalone unit. I run twin Heil mics (two different models) at the same time thru a W2IHY 8-band EQ and EQ Plus to achieve the same audio you hear with MMM when he is on the air.
Since the AM bandwidth for CB is 8khz, by widebanding it up to 10k, is just creating "splatter boxes." Thus a standard 8k receiver will not perceive the modulation as much better, and possibly worse, but will hear it on adjacent channels as splatter as the modulation saturates the 4k guard bands right into the next channel. Why not just make the allotted 8khz sound better rather than creating a "splatter box" at 10k? Good way to make enemies out of friends.
It has a major impact during pileups. M³ will put it down with the antanna pointed elseware, coming in s5, when the channel is clear, but during a maul rampage, his fidelity and banter shines thru like he has lanes outside the fence the others are restricted to. I will try to record a lil water fence of it. Otherwise, when the channel is clear, he sounds like a high quality shortwave broadcast, not super bassy like WLS, but like a whale greeting frantic guppies.
The only beef in the radio community was him copying MMM's board exactly, and lied about it, right down to the flaws MMM pointed out as you might know from being at his site. Other then that no one cared that he built and sold them. Nobody likes a thief and liar.
My beef is it's just further polluting the RF spectrum. I don't care whether it's his original design or not. Neither one is doing anything useful for two-way communications.
I am on your side for this one mike. I dont believe in modifying radios it just causes more problems in the long run. Just to let you know I will not preform any mods for those who ask. athere is enough rf pollution out there and we dont need anymore. Happy new year to you and your family. look forward to more of your videos.
I once had a guy download all the files in the members area of my site and then sell them on cd on eBay as his, that was about 8 years ago now so there are now a lot more files in my members area.
love your work, adds knowledge to those of us willing to listen, also appreciate your input on different likes and dislikes for different people, that being said, I only wish you were not so popular, because trying to get in touch with you has been impossible, yes sent emails both Gmail and the other one I think net zero, from 2014, from the quality of your work you must receive more email then you can answer, maybe someday I will here from you. N-JOY-THE new year
I hate it most these monster Power stations are broad banded to hell and back you'll hear em from channel 6 there transmitting on 1-10 most the time tons of garbage cluttering up the band totally kills people operating on ssb modes completely
I don't know why UNIDEN don't use the Tayloe direct SSB generator/demodulator at signal frequency, you know generating the RF at say 1820000khz which get divided by 4 in the Johnson counter which drives the PI5V331 one for LSB/USB TX and one for LSB/USB RX and one of the pins on the Johnson counter will give the 455khz.
Wolf Pack Productions Customer purchased the radio from them with it already installed. I don't use them, don't install them and won't repair them so don't know. Would have to ask the person that made it.
So this makes it less efficient for two-way communications. How much is the sideband amplitude down at the end of the spectrum display? More positive side modulation without more bandwidth, eh still cheating a bit, but at least won't interfere with adjacent channels.
Mike, 25kHz is also in a dogs hearing range. Somebody with the same mod will have dogs howling on their end if near to the speaker. Thank you for mentioning, a CB is not a Hifi radio. :-) Happy New Year.
Asymetric modulation has been allowed in AM broadcast for ages - 125% positive. Nobody there has really invented anything new. If you're looking to go hifi on CB, go FM and get an Optimod - yea! Go stereo! Ha!
RF Burns Yep, asymmetrical modulation has been around a long time. They just made it fairly easy to install in a CB. And FM is definitely the way to go if you want real fidelity.
Also these are in fact hi fidelity whether people agree or not. It absolutely is. Its not gonna work using the regular mic. Its designed for direct inject. So you can definitely definitely achieve hi fidelity audio.....as far as adjacent channel rejection...just so that its understood....that board....well....the original rather....its designed to be used with a program....and also direct injected. where you can control the injected audio bandwidth to your liking. For your voice. And you can control your receive bandwidth as well. Again my apologies on my first comment. I jumped the gun and got a little defensive.
it is NOT hi-fi, hi-fi would mean high fidelity, this asymod product distorts the original audio signal a lot! Try running a sine wave thru it on a dual trace scope, what comes out is massively distorted representation of the original signal. If you watch his own videos where he claims the signal is not pinched off, it is pinched off a lot and there are many other distortions to the signal.
This is a stolen idea from motor mouth maul i am so glad you exposed this guy. I have spoken to motor mouth maul via facebook message his are much better. In reality you can achieve the same sound with audio gear a mixer, eq, and compressor and an ipad with certin apps. I like you dont support someone that steals another persons hard work.
Yeah, they're Chinese LM2576 boost converters, couple of dollars (maximum) from eBay, so at a guess the power devices on the edge of the board are used as a push pull amplifier pair with a virtual ground to modulate the drain/collector voltage? Would be interesting to see the low frequency signal on the finals. Not impressed though, it's one thing to get better modulation depth but only those who have a radio modded in the same lame way get the benefit it's at best a waste of money, the wider ceramic filter will worsen the AM/FM receive performance as well. And won't it stomp on adjacent channel users too?
I just got my 955 and its awesome seems like my stock uniden 980ssb receives way better upper lower sideband traffic than my 955 for whatever reasons idk yet I love the ssb capability of my 3 uniden 980ssbs for certain I gotta a lil Palomar 250 auto ssb box on all 3 the unidens with a good preamp built into the boxes maybe that's the difference but I've ran all 3 uniden 980s without the box on and still got better contact with any of them actually
980 SSB's are some good radios? I have some older Unidens from the 80's but I'm looking to buy a brand new SSB radio, would you recommend it? Looks like an awesome radio.
I see that you are using Rigol DG4102 function generator as your two-tone generator for SSB testing. How do you combine those two outputs into one before feeding the signal to the mic input? Is the small black box you have on the left side of the DG4102 that works like mixer for your audio signals from the DG4102?
Kultur Chefen I usually use a communications test set that has low distortion audio amplifiers. One of them will do up to a 20 tone composite signal. To use two separate signals from two channels or from two separate generators just use a simple resistive combiner.
Cool! I think my next step is to get a HP 8920A radio comms test set. I have a HP 8904B function generator with 4 channels that "seems" to work ok and that one can also combine those 4 channels into one output. However, I have always wondered why my 2-tone SSB testing shows different levels for my two tones I use, for example 900Hz and 2400Hz or 850 Hz and 2200 Hz. I always thought that it was a consequence by the design of the audio circuits in CB radios but now when I recently got my Rigol DSA815-TG generator I hooked up my HP 8904B to the DSA815 and was surprised to see that the lower tone had lower amplitude than the higher tone. I had to set the 900Hz tone to 35mV and the 2400Hz tone to 11mV to get two signals on the spectrum analyzer with same amplitude... I guess I need to build a low THW tone generator with adjustable levels of each tone before going through a main level control. Like this one: sites.google.com/site/linuxdigitallab/rf-homebrew-instrument/audio-low-thd-two-tone-generator
When we originally built the very first Mauldulator, we put in a 20 KHz signal and of course that resulted in what looked like a dead carrier 2 channel up and down from the channel the radio was on. We later applied FM to the 20 KHz signal and sure enough you could hear the FM audio on those two carriers. This was not done as some kind of marketing ploy, it was just done to test the idea. I am not sure we even mentioned it before this.
the most your going to have is 300 hz to 3 Khz response. going out to 25 Khz is way out to far and yes you will splatter the band with it. try adjusting your Audio generator to the correct settings and rerun the tests.
After watching this clip a second time I think for people like myself who might want to get into the "hi-fi" CB thing, this might be the easiest way to do so. When I say people like myself I'm referring to those who enjoy the hoby but have little to no knowledge about how to install/inject/modify or wideband a tranciver. Although I did show some interest in "hi-fi" 11 meter operation, I've since lost that interest. The guy's who are into it and do it right sound awesome, but after listening to so many of them on air my initial interest has completely dissipated. I enjoy trying to keep my setups sounding as good as they can whilst doing it as close to stock as possible. I recently had a d104 moded for a lower response with use for my uniden madiison, and although I've yet to give it a run through I'm expecting good reports. I heard a cobra 148 gtl with the same mod that's been done to my mic and am hoping to get the same results. which by the way were very impressive to say the least. I want to be able to key my mic and sound as good as one could with a stock or as close to it without having to keep my eye on a scope while constantly having to adjust a eq/mixer and all the other adjustments like carrier etc etc. if the "hi-fi" thing is you interest more power to you. When done right the result cab but impressive to say the least. I might consider experimenting with my sonar fs 2340. My reason for possibly doing so is because I own two. If I only had one I'd be happy with the audio clipper board bypassed, and the only reason it bypassed is its the only way to incorporate the demco modulator. it's also necessary if I decided to use an amplified d104. I do have one wired for the fs 2340 but have yet to give it a try. This "hi-fi" isn't for everyone and at this point it's not for me. if it's something you're interested in go for it but no matter what floats your boat, the important thing is to enjoy the hoby and resect it. keep it as clean as one could while reaching you desired audio/output. God bless all my radio friend's and have a great 2017. Hope to catch you on the air. another three years for the new cycle until the enjoy the local rag chewing sessions and the occasional skip conditions.
Problem is hi-fi CB is a stupid idea and those employing it are subjecting everyone else to it whether or not it's "their thing." SSB is popular on HF particularly because the more narrow bandwidth is better for long distance voice communications.
asymod distorts the heck out of the signal, take a good look at a sine wave and at what they claim is 300% modulation, looks like a bunch of skinny vertical footballs double spaced with a bunch of odd shaped negative peaks. So there is double the amount of time without a signal as there is with a signal. JUNK
@@mikesradiorepair The guy " mark sherman " is a genius actually, take ones money for a fine-tuned 955, the radio plus the fine-tuned service, cut the wire so it works on 11 meters, say it has been fine-tuned, close it up send it out, take the profits from the service he performed and buy another radio, rinse and repeat! all you dumb chit truckers fell for it, he charged you hundreds of bucks for peak and tweaked 955 when all he did was cut a wire, you paid full price for a radio and his wire-cutting service, overcharged you for a radio " profit" bought another one to do it to someone else offering the same shit, then he buys his dope, pays his tailor park rent, and slaps those same truckers all day long LMFAO!
richard3560able But usually it's not someone else (motor mouth maul in this case) directly trying to help someone out only to have them turn around and take credit for it.
richard3560able Would think they could at least give credit where credit is due. Doesn't need to be fancy, something as simple as brought to you with the greatly appreciated help of .......
douro20 The reason people broadband is for better audio fidelity. In a factory radio your limited to around 3kHz or less audio bandwidth. Broadbanding the audio bandwidth allows you to transmit more audio range. The problem is when you broadband the audio you start to cause adjacent channel splatter.
ᗒ╬ᗕ1112223333111ᗒ╬ᗕ They call it eSSB. It will kind of work is all I can say. The big limiting factor in SSB is the crystal filter. These are mainly designed for AM.
MikesRadioRepair hmm not worth it with 3 locals to talk to here, lol. I already seen mauldulators and asked him the same question. I'd rather buy a Yaesu or driftwood that has 6khz wide built in with a submenu. Till I find a 6KC filter for my 101, I'll have to suffer with 2.4. Have a Happy New Year Mike
The guy " mark sherman " is a genius actually, take ones money for a fine-tuned 955, the radio plus the fine-tuned service, cut the wire so it works on 11 meters, say it has been fine-tuned, close it up send it out, take the profits from the service he performed and buy another radio, rinse and repeat! all you dumb chit truckers fell for it, he charged you hundreds of bucks for peak and tweaked 955 when all he did was cut a wire, you paid full price for a radio and his wire-cutting service, overcharged you for a radio " profit" bought another one to do it to someone else offering the same shit, then he buys his dope, pays his tailor park rent, and slaps those same truckers all day long LMFAO!
i have been doing this for a long time this guy is selling guys stuff that they will never use nor will anyone will ever hear but they spend the money for something someone stold
what i think is funny about this is .....this guy is a ticketed ham operator.....he is modifying a radio that may or not be legal to operate on 11 meters in the united states per fcc regulations ....has his call sign attached to this ....and is openly modifying and selling these in the us market .........
+Kaitlyn Simpson I do not and never will own one of these. It was a customers radio so unless someone sent me two of them, one with and one without the module I can't do a comparison test.
Kaitlyn Simpson I still don't have one of them and have no plans on buying one. I also don't install these things. This one was already in the radio when the customer purchased the radio.
MikesRadioRepair ok I guess I'm being stupid. I'm just interested in how a normal unmodified radio, like a cobra 29 or a Royce 609 for example, would output when tested in the same way. Sorry for the confusion.
Hate finding your channel after you stopped.
Your honestly and integrity is intact. I sent you the Asymod eBay description months ago and asked your opinion. You couldn't say either way as you hadn't had ever had one on your bench. That has obviously changed. Excellent clip. Mike. happy 2017 and we'll talk soon. Godspeed my friend.
Thank you Mike and your customer for doing this review. I do have one of the original motormouth maul boards just have not messed with it, I do know a lot of people that have high end receivers just for lessening to radios like this.
Mike
Just a couple comments. I designed the original Mauldulator with MMM. I have seen people talk about 300% modulation and 20 and 30 kHz frequencies and of course these are both ridiculous. Anytime we mentioned anything remotely close to that, it was to show it had the headroom to achieve those things so usage at 5 KHz and 130% peaks was no challenge. In the first version of this, we did put in a filter at the end to cause a roll off at about 6 KHz. On the second version, we have no filter and tell the user they should provide that in their processing gear. We have abandoned the LM324 because of it's low gain bandwidth product. It would be interesting, if you still have one of these units you reviewed to look at the cross over distortion at the higher audio frequencies and see what it looks like. Something that claims high fidelity needs to have minimal crossover distortion. As for this competitor, I will give him credit for his talent at good documentation and slick videos. The quality of installation looks pretty good too. As to his integrity and honor, his actions speak for themselves
TinkTron Not sure if you will get this message, but in case you do, I must say I am disgusted that someone would make money from ripping you off. To be honest, I reverse engineered your original design for my own personal use and the schematics are locked away forever. I even informed John that I did it. Thank you so very much for bringing such fun to the CB world. I have a lot of respect for you. Respectfully, Ken (KP68)
Good Deal , i don't know crap about that & I sure don't like mods in any kind of radios ! I am just trying to learn some things . I sure am no tech, but i do like the old Tube type the best , but i do own some solid state stuff tho & i am glad you said what you did on being HONEST ! That means a lot to me . Thanks again Richard.
You can't "steal" a concept. And there is nothing wrong with improving upon a concept. MMM has a very unique sound and I would credit him with the knowledge and experience in pioneering that sound and with engineering the circuit to do so. That said you can't fault someone for taking basic well known electronic concepts and putting together a circuit that allows you to modify an audio signal. And potting a circuit board has been around since the 70's if not before - which is sort of the same thing as wiping off identifying chip numbers.
Your video is informative and well done on the other hand
There is no claim that the concept was stolen. It is the implementation that was stolen. Asymmetry on AM has been around for half a century, but the circuit to accomplish it in this instance was taken and no credit given. Actually, the guy flat out said that it was not a copy and MMM bought one and proved it was.
I hate to see these radios hacked up. I realize his work is neat and well done. But yeah I said but. This radio is a monster right out of the box. I can see a SSB alignment or maybe a few minor tweaks. I have never owned a radio that matched this one from the first words spoken into the mic. This radio is loud on AM and a screamer on SSB. What more can you ask for.
He said, she said, whatever...MMM is a good person, but failed to bring this idea to market. Jose in Miami took the bull by the horns and produced a highly professional circuit and developed a product that is superior to none. I run an RCI99v2 he added an outboard Standalone unit. I run twin Heil mics (two different models) at the same time thru a W2IHY 8-band EQ and EQ Plus to achieve the same audio you hear with MMM when he is on the air.
Since the AM bandwidth for CB is 8khz, by widebanding it up to 10k, is just creating "splatter boxes." Thus a standard 8k receiver will not perceive the modulation as much better, and possibly worse, but will hear it on adjacent channels as splatter as the modulation saturates the 4k guard bands right into the next channel.
Why not just make the allotted 8khz sound better rather than creating a "splatter box" at 10k?
Good way to make enemies out of friends.
It has a major impact during pileups.
M³ will put it down with the antanna pointed elseware, coming in s5, when the channel is clear, but during a maul rampage, his fidelity and banter shines thru like he has lanes outside the fence the others are restricted to. I will try to record a lil water fence of it. Otherwise, when the channel is clear, he sounds like a high quality shortwave broadcast, not super bassy like WLS, but like a whale greeting frantic guppies.
Mike, you would need a stock, unmodified Stryker sitting next to that one for comparison to really show the difference in what this is doing.
Ham radios have 6kh am filters you can buy and install.
I have a 9 in mine LOL
A NICE classroom discussion!!!🤗
The only beef in the radio community was him copying MMM's board exactly, and lied about it, right down to the flaws MMM pointed out as you might know from being at his site. Other then that no one cared that he built and sold them. Nobody likes a thief and liar.
My beef is it's just further polluting the RF spectrum. I don't care whether it's his original design or not. Neither one is doing anything useful for two-way communications.
Excellent!
Happy New Years Mike!
Hi Mike here's wishing you and family a Happy New Year, take care
Asymod III - I think I'll pass.
Want high positive peak modulation. Buy a Tram D201 it's built in.
Thank you for this video, I was trying to find out what the heck the mod was too
I am on your side for this one mike. I dont believe in modifying radios it just causes more problems in the long run. Just to let you know I will not preform any mods for those who ask. athere is enough rf pollution out there and we dont need anymore.
Happy new year to you and your family. look forward to more of your videos.
I once had a guy download all the files in the members area of my site and then sell them on cd on eBay as his, that was about 8 years ago now so there are now a lot more files in my members area.
TheDefpom
I see stuff like that a lot on ebay. Material that was obviously copied from someone else's hard work. Sad isn't it.
love your work, adds knowledge to those of us willing to listen, also appreciate your input on different likes and dislikes for different people, that being said, I only wish you were not so popular, because trying to get in touch with you has been impossible, yes sent emails both Gmail and the other one I think net zero, from 2014, from the quality of your work you must receive more email then you can answer, maybe someday I will here from you.
N-JOY-THE new year
I got one and they only put out 2 1/2 watts tuned right.
I hate it most these monster Power stations are broad banded to hell and back you'll hear em from channel 6 there transmitting on 1-10 most the time tons of garbage cluttering up the band totally kills people operating on ssb modes completely
Thank Mike.
Cool video. Thanks. 👍
I bought a 756 proIII. I'm pretty happy with the audio on SSB
I am about to add a W2IHY 8-Band EQ to mine. Already using a Heil Mic & Boom setup.
I still have my original MMM Board. Be nice if I could get it hooked up in my HAM HF rig.
Opps, you done it now Mike. You revealed the secret of the IC. Look out for the haters lol.......Great video BTW.
The Radio Shop
Never could figure out why people sand the part numbers off. It's rather obvious what it is.
I don't know why UNIDEN don't use the Tayloe direct SSB generator/demodulator at signal frequency, you know generating the RF at say 1820000khz which get divided by 4 in the Johnson counter which drives the PI5V331 one for LSB/USB TX and one for LSB/USB RX and one of the pins on the Johnson counter will give the 455khz.
Did you make adjustments to the settings on the Asymod itself, supposedly it can narrow the band please explain this Mike thank you.
Wolf Pack Productions
Customer purchased the radio from them with it already installed. I don't use them, don't install them and won't repair them so don't know. Would have to ask the person that made it.
SPEACH PROCESSOR ADVANCED ?
I can think of some great comps/expanders that would be fun to play with
So this makes it less efficient for two-way communications. How much is the sideband amplitude down at the end of the spectrum display? More positive side modulation without more bandwidth, eh still cheating a bit, but at least won't interfere with adjacent channels.
I do get that Mike. But that is what other radio company's do? Right! Wrong?
Mike,
25kHz is also in a dogs hearing range. Somebody with the same mod will have dogs howling on their end if near to the speaker. Thank you for mentioning, a CB is not a Hifi radio. :-)
Happy New Year.
I truly dislike this mod. No reason for it.jmho
Asymetric modulation has been allowed in AM broadcast for ages - 125% positive. Nobody there has really invented anything new. If you're looking to go hifi on CB, go FM and get an Optimod - yea! Go stereo! Ha!
RF Burns
Yep, asymmetrical modulation has been around a long time. They just made it fairly easy to install in a CB. And FM is definitely the way to go if you want real fidelity.
RF Burns
Nobody claimed asymmetry was new. What was copied was the way to achieve it!
Also these are in fact hi fidelity whether people agree or not. It absolutely is. Its not gonna work using the regular mic. Its designed for direct inject. So you can definitely definitely achieve hi fidelity audio.....as far as adjacent channel rejection...just so that its understood....that board....well....the original rather....its designed to be used with a program....and also direct injected. where you can control the injected audio bandwidth to your liking. For your voice. And you can control your receive bandwidth as well. Again my apologies on my first comment. I jumped the gun and got a little defensive.
it is NOT hi-fi, hi-fi would mean high fidelity, this asymod product distorts the original audio signal a lot! Try running a sine wave thru it on a dual trace scope, what comes out is massively distorted representation of the original signal. If you watch his own videos where he claims the signal is not pinched off, it is pinched off a lot and there are many other distortions to the signal.
This is a stolen idea from motor mouth maul i am so glad you exposed this guy. I have spoken to motor mouth maul via facebook message his are much better. In reality you can achieve the same sound with audio gear a mixer, eq, and compressor and an ipad with certin apps. I like you dont support someone that steals another persons hard work.
Yeah, they're Chinese LM2576 boost converters, couple of dollars (maximum) from eBay, so at a guess the power devices on the edge of the board are used as a push pull amplifier pair with a virtual ground to modulate the drain/collector voltage?
Would be interesting to see the low frequency signal on the finals.
Not impressed though, it's one thing to get better modulation depth but only those who have a radio modded in the same lame way get the benefit it's at best a waste of money, the wider ceramic filter will worsen the AM/FM receive performance as well.
And won't it stomp on adjacent channel users too?
I can't believe you exposed his secret LM324 man. LOL
I just got my 955 and its awesome seems like my stock uniden 980ssb receives way better upper lower sideband traffic than my 955 for whatever reasons idk yet I love the ssb capability of my 3 uniden 980ssbs for certain I gotta a lil Palomar 250 auto ssb box on all 3 the unidens with a good preamp built into the boxes maybe that's the difference but I've ran all 3 uniden 980s without the box on and still got better contact with any of them actually
980 SSB's are some good radios? I have some older Unidens from the 80's but I'm looking to buy a brand new SSB radio, would you recommend it? Looks like an awesome radio.
I see that you are using Rigol DG4102 function generator as your two-tone generator for SSB testing. How do you combine those two outputs into one before feeding the signal to the mic input? Is the small black box you have on the left side of the DG4102 that works like mixer for your audio signals from the DG4102?
Kultur Chefen
I usually use a communications test set that has low distortion audio amplifiers. One of them will do up to a 20 tone composite signal. To use two separate signals from two channels or from two separate generators just use a simple resistive combiner.
Cool! I think my next step is to get a HP 8920A radio comms test set.
I have a HP 8904B function generator with 4 channels that "seems" to work ok and that one can also combine those 4 channels into one output.
However, I have always wondered why my 2-tone SSB testing shows different levels for my two tones I use, for example 900Hz and 2400Hz or 850 Hz and 2200 Hz.
I always thought that it was a consequence by the design of the audio circuits in CB radios but now when I recently got my Rigol DSA815-TG generator I hooked up my HP 8904B to the DSA815 and was surprised to see that the lower tone had lower amplitude than the higher tone. I had to set the 900Hz tone to 35mV and the 2400Hz tone to 11mV to get two signals on the spectrum analyzer with same amplitude...
I guess I need to build a low THW tone generator with adjustable levels of each tone before going through a main level control. Like this one: sites.google.com/site/linuxdigitallab/rf-homebrew-instrument/audio-low-thd-two-tone-generator
It would be interesting to hear the sounds it's making on the adjacent channels during the sweep, if any.
When we originally built the very first Mauldulator, we put in a 20 KHz signal and of course that resulted in what looked like a dead carrier 2 channel up and down from the channel the radio was on. We later applied FM to the 20 KHz signal and sure enough you could hear the FM audio on those two carriers. This was not done as some kind of marketing ploy, it was just done to test the idea. I am not sure we even mentioned it before this.
the most your going to have is 300 hz to 3 Khz response. going out to 25 Khz is way out to far and yes you will splatter the band with it. try adjusting your Audio generator to the correct settings and rerun the tests.
mike is the 955 just a anytone 6666 for the most part
After watching this clip a second time I think for people like myself who might want to get into the "hi-fi" CB thing, this might be the easiest way to do so. When I say people like myself I'm referring to those who enjoy the hoby but have little to no knowledge about how to install/inject/modify or wideband a tranciver. Although I did show some interest in "hi-fi" 11 meter operation, I've since lost that interest. The guy's who are into it and do it right sound awesome, but after listening to so many of them on air my initial interest has completely dissipated. I enjoy trying to keep my setups sounding as good as they can whilst doing it as close to stock as possible. I recently had a d104 moded for a lower response with use for my uniden madiison, and although I've yet to give it a run through I'm expecting good reports. I heard a cobra 148 gtl with the same mod that's been done to my mic and am hoping to get the same results. which by the way were very impressive to say the least. I want to be able to key my mic and sound as good as one could with a stock or as close to it without having to keep my eye on a scope while constantly having to adjust a eq/mixer and all the other adjustments like carrier etc etc. if the "hi-fi" thing is you interest more power to you. When done right the result cab but impressive to say the least. I might consider experimenting with my sonar fs 2340. My reason for possibly doing so is because I own two. If I only had one I'd be happy with the audio clipper board bypassed, and the only reason it bypassed is its the only way to incorporate the demco modulator. it's also necessary if I decided to use an amplified d104. I do have one wired for the fs 2340 but have yet to give it a try. This "hi-fi" isn't for everyone and at this point it's not for me. if it's something you're interested in go for it but no matter what floats your boat, the important thing is to enjoy the hoby and resect it. keep it as clean as one could while reaching you desired audio/output. God bless all my radio friend's and have a great 2017. Hope to catch you on the air. another three years for the new cycle until the enjoy the local rag chewing sessions and the occasional skip conditions.
Problem is hi-fi CB is a stupid idea and those employing it are subjecting everyone else to it whether or not it's "their thing." SSB is popular on HF particularly because the more narrow bandwidth is better for long distance voice communications.
you connect scope to radio xmit out ? didnt know you can do it without damage to scope
DENNIS N
Why would it hurt it? Its way way below its maximum input voltage.
asymod distorts the heck out of the signal, take a good look at a sine wave and at what they claim is 300% modulation, looks like a bunch of skinny vertical footballs double spaced with a bunch of odd shaped negative peaks. So there is double the amount of time without a signal as there is with a signal. JUNK
Nobody sues anyone for theft of Amp or Audio enhancements for CB because Uncle Charlie would step in.
What does it sound like with the echo board on ?
Have no clue, I never use echo and this radio did not belong to me so it's long gone so unable to test.
I wasn't gonna say idiot but since you already did LOL!!!
any mixer would limit the audio frequency to 80hz to 15khz wouldn't it?
ᗒ╬ᗕ1112223333111ᗒ╬ᗕ
I have a Rane 40 channel studio mixing console that goes to 25kHz. Most EQ's go to 20kHz on average.
I'll just stick with my Turner plus 3 mic. Compressor works perfectly and audio quality is excellent.
TheLonesometoad
Hard to beat the Turner plus 3. One of my favorite microphones.
@@mikesradiorepair The guy " mark sherman " is a genius actually, take ones money for a fine-tuned 955, the radio plus the fine-tuned service, cut the wire so it works on 11 meters, say it has been fine-tuned, close it up send it out, take the profits from the service he performed and buy another radio, rinse and repeat! all you dumb chit truckers fell for it, he charged you hundreds of bucks for peak and tweaked 955 when all he did was cut a wire, you paid full price for a radio and his wire-cutting service, overcharged you for a radio " profit" bought another one to do it to someone else offering the same shit, then he buys his dope, pays his tailor park rent, and slaps those same truckers all day long LMFAO!
It might be a copy but Jose has taken it alot further and easier to setup and cheaper. No 30 volt supply as john bartel recommends.
richard3560able
No argument the design is more refined. It's just that he doesn't give credit where credit is due for the original design.
That's true but most everything in the cb world is copied.
richard3560able
But usually it's not someone else (motor mouth maul in this case) directly trying to help someone out only to have them turn around and take credit for it.
Been that way for years with amplifiers.
richard3560able
Would think they could at least give credit where credit is due. Doesn't need to be fancy, something as simple as brought to you with the greatly appreciated help of .......
I hope I didn't Word it too harsh. In hind sight I may have unfortunately. If so I apologize. I just wanna see the credit go to the right people .
Hey what is that CW key
Did you actually watch the beginning of the video?
What does he want to do? Transmit music?
douro20
The reason people broadband is for better audio fidelity. In a factory radio your limited to around 3kHz or less audio bandwidth. Broadbanding the audio bandwidth allows you to transmit more audio range. The problem is when you broadband the audio you start to cause adjacent channel splatter.
+douro20
There is no audio transmitted in a CB transmission, only a continuous frequency or wave, hence CW for continuous wave.
MikesRadioRepair Yeah, after I posted that I remembered that and deleted the comment...
Motor mouth maul eh, ive heard of him.. in videos..
so does this work on SSB?
ᗒ╬ᗕ1112223333111ᗒ╬ᗕ
They call it eSSB. It will kind of work is all I can say. The big limiting factor in SSB is the crystal filter. These are mainly designed for AM.
MikesRadioRepair hmm not worth it with 3 locals to talk to here, lol.
I already seen mauldulators and asked him the same question.
I'd rather buy a Yaesu or driftwood that has 6khz wide built in with a submenu.
Till I find a 6KC filter for my 101, I'll have to suffer with 2.4.
Have a Happy New Year Mike
The AM modulator section shown in this review is not used on SSB mode. I assume it uses the stock SSB signal generation
The guy " mark sherman " is a genius actually, take ones money for a fine-tuned 955, the radio plus the fine-tuned service, cut the wire so it works on 11 meters, say it has been fine-tuned, close it up send it out, take the profits from the service he performed and buy another radio, rinse and repeat! all you dumb chit truckers fell for it, he charged you hundreds of bucks for peak and tweaked 955 when all he did was cut a wire, you paid full price for a radio and his wire-cutting service, overcharged you for a radio " profit" bought another one to do it to someone else offering the same shit, then he buys his dope, pays his tailor park rent, and slaps those same truckers all day long LMFAO!
Oh no he absolutely stalled motormouth maul bored
It should for what it cost
i have been doing this for a long time this guy is selling guys stuff that they will never use nor will anyone will ever hear but they spend the money for something someone stold
will you install them lol
haa haa that's awesome
It was stolen from MMM
I do not agree....MMM did not invent that technology.....its been around for a long time.
Splatter box transistor cooker 😂😂😂😂
wanna hear the best audio, go reasearch n7cal on youtube......listen with headphones.
I would not buy anything that is a copy of a copy except the key
ASSMOD
DOA......
what i think is funny about this is .....this guy is a ticketed ham operator.....he is modifying a radio that may or not be legal to operate on 11 meters in the united states per fcc regulations ....has his call sign attached to this ....and is openly modifying and selling these in the us market .........
Please duplicate your demonstration with an unmodified radio for comparison
+Kaitlyn Simpson
I do not and never will own one of these. It was a customers radio so unless someone sent me two of them, one with and one without the module I can't do a comparison test.
MikesRadioRepair Sorry, I didn't mean one of those splatter boxes, but rather a good standard radio.
Kaitlyn Simpson
I still don't have one of them and have no plans on buying one. I also don't install these things. This one was already in the radio when the customer purchased the radio.
MikesRadioRepair ok I guess I'm being stupid. I'm just interested in how a normal unmodified radio, like a cobra 29 or a Royce 609 for example, would output when tested in the same way. Sorry for the confusion.
Kaitlyn Simpson
Oh, sweep a audio signal through a stock radio. I can tell you what you would see. About a 3kHz bandwidth for the audio bandpass.
sweep out to 35000hz.....bats and digital.....crypto? oh what happened