HF'S ON AM

[222DBFL]

Just take your time setting it up Sonar. And if you have any local pals that don't pull your leg or just have no clue what good audio is, it's not a bad idea to use one of them for a reference as to how you sound. Both a close and one that is as far as possible, and not DX, would work well. Or another receiver radio with a good set of speakers. Justsome food for thought. Did you happen to ask the guy you spoke with on his kenwood how he hadit setup. It may or may not work for you as it depends a lot on how you sound naturally speaking. As in do you have a high or low pitched voice and is it loud or soft. Anyways, like I told Undertaker, as well as many others did, read the manual and use it as a guiding tool to setup your radio from the beginning. I would also suggest writing down how to setup the radio for both AM and SSB use and how it sounds both locally and out a little ways. I write down everything I do these days and that way if something gets way knocked out of place I can return it to the correct place without having to fool around. Maybe I am just OCD. But it took some time to get my radio setup the way I have it and I get a lot of compliments on it. But like I said, I've spent a lot of time setting it up. Have fun with the new radio. Kenwood makes some good radios. I own both an Icom and kenwood, so I am not biased toward one or the other, if I had a newer kenwood I would most likely use it more. Mine is my backup radio and doesn't get used a whole lot. Again, enjoy the radio, and remember to read the manual and listen to what these gents above me have posted as they know about 100 times more than I do about these radios!!
73 and God Bless.

 

[Captain Kilowatt]

That's the way I always heard and read it to be in both in Ham and CB communities.

You're most likely correct but I'm surprised you used Wikipedia for a source and Yeticom provided none.

I will do some research when I get the chance since I'm lacking the knowledge on this.

Thanks for your input.

I used Wiki because it was quick and easy and I had just gotten home from work. Just getting ready to go back in now so no time to dig deeper for now. radios that did not have a dedicated AM filter used this scheme to produce AM and while not the best idea it did work.

 

[BJ radionut]

I had just gotten home from work. Just getting ready to go back in now

I feel the same way...Seems like I just got home...and Now at work again...Busy Sked's this time of year...
Well at least I'll have a 3 day weekend after another FB game Thurs. night...And then hanging on for Dear Life till the 16th of Dec...
That's when I will be off till Next Year...from 16th till Jan 3.17....
Maybe I'll actually feel like a little bench work completed...MAYBE
All the Best
Gary

 

[HARDROCK]

Captain Killowatt, Can you explain why the ts-50 kenwood has bad front end overload on recieve in AM mode ?

 

[Yeti Communications Ltd]

Captain Killowatt, Can you explain why the ts-50 kenwood has bad front end overload on recieve in AM mode ?

sorry not ck but turn the NB off and the AIP on ..if you are listening to the bowl ..those wide signals "hifi" screw with the nb and really on am they work better with AIP on ..from experiance

alos most strong signals ove s8-9 will cause the nb to distort the received signal

anything else and its most likey you have other issues

 

[HARDROCK]

I have tried that . It must be the nature of the radio itself.
I sent it to cliff at AAVID in Texas the kenwood man.
He done full alignment.

Have you run the ts-50 on AM ?

Also could you explain the filtering. The cobra 29 dont have this problem.

The ts 50 on has 2 settings the 2.5 narrow and 6khz.

 

[222DBFL]

Try the wider filter at 6k on AM. NB off and RF Gain backed down.

 

[2RT307]

I have tried that . It must be the nature of the radio itself.
I sent it to cliff at AAVID in Texas the kenwood man.
He done full alignment.

Have you run the ts-50 on AM ?

Also could you explain the filtering. The cobra 29 dont have this problem.

The ts 50 on has 2 settings the 2.5 narrow and 6khz.

Cliff does REALLY good work on the Kenwood rigs.

73,
Brett

 

[fourstringburn]

I used Wiki because it was quick and easy and I had just gotten home from work. Just getting ready to go back in now so no time to dig deeper for now. radios that did not have a dedicated AM filter used this scheme to produce AM and while not the best idea it did work.

After finally getting around to do a little research and asking around too, Double side band is using both side bands but WITHOUT the carrier, easy enough by definition so yes this isn't truly AM so I was wrong using this term here.

AM by definition is what I described but isn't double sideband, it is in fact how I described it as both side bands along WITH a carrier. Here I was correct on what AM is.

AM (amplitude modulation) was the early mode used by hams for voice transmission. In AM the signal is a carrier (like CW) that has upper and lower sidebands that are modulated by varying the amplitude (strength) of the signal. Most shortwave broadcast stations use this method. If you tune to the BBC or some such station using either USB or LSB on your receiver you can hear the carrier as a continuous tone as you move slightly away from the center of the signal. If you listen around the upper end of the 80 meter band you may find some hams using this mode. However AM takes twice the bandwidth of SSB and so is not widely used in Amateur radio.

In an AM modulated radio signal, the carrier, is continuously transmitted. Due to the nature of the way AM is produced in the transmitter, two identical modulating signals are attached to the carrier wave, these are called the sidebands. They are a mirror image of each other, identical in every way.


Any audio that you hear on an AM receiver is from the two sidebands. When the radio transmitter you are tuned to is not transmitting any sound, you can still hear from the speaker and see on your S meter that a signal is present due to the background noise being quieter than either side of that frequency. This is the carrier you are hearing being detected by your receiver.


These two modulating (audio) sidebands are located on either side of the carrier wave, one just above it and the other just below.


A friend of mine with an older Drake radio has no AM. What he does is probably what you know you can do with yours. That is, fake it by using one SSB mode (upper) and the drake is capable of producing a carrier to combine it with to replicate AM mode.

Whether or not old or modern radios use both side bands for AM could be up to the manufacture of their radios, Put one on a scope and it would definitely show up if it is or isn't.

 

[HARDROCK]

Try the wider filter at 6k on AM. NB off and RF Gain backed down.

The ts-50 has no rf gain. i wish it did.
The newer stuff has the rf gain. like the 480 sat/ hx
I would like to hear one on AM.

I wish kenwood would build a AM mode only rig. I would buy one.
The ts- 50 has much cleaner audio on tx than the cb does.
Of course its my opinion, Most want to be loud and blasting.
I would rather it be Clean.

The ts-50 is perfect for audio quality, Its the recieve thants lacking.

 

[Yeti Communications Ltd]

The ts-50 has no rf gain. i wish it did.
The newer stuff has the rf gain. like the 480 sat/ hx
I would like to hear one on AM.

I wish kenwood would build a AM mode only rig. I would buy one.
The ts- 50 has much cleaner audio on tx than the cb does.
Of course its my opinion, Most want to be loud and blasting.
I would rather it be Clean.

The ts-50 is perfect for audio quality, Its the recieve thants lacking.

i think you have other issues ..the ts50 has a fine am receive you may have issues with the radio (internally) or the people you listen to have jerkulated audio..listen to some shortwave am stations with filter wide and nb off and aip off ..VOA would be a good one to listen to or BBC ..if they are as nasty to you then yeah be looking at radio harder but can say the ts50 on am is just fine and i have owned a few from the day they were brought out .

After finally getting around to do a little research and asking around too, Double side band is using both side bands but WITHOUT the carrier, easy enough by definition so yes this isn't truly AM so I was wrong using this term here.

AM by definition is what I described but isn't double sideband, it is in fact how I described it as both side bands along WITH a carrier. Here I was correct on what AM is.



A friend of mine with an older Drake radio has no AM. What he does is probably what you know you can do with yours. That is, fake it by using one SSB mode (upper) and the drake is capable of producing a carrier to combine it with to replicate AM mode.

Whether or not old or modern radios use both side bands for AM could be up to the manufacture of their radios, Put one on a scope and it would definitely show up if it is or isn't.

sorry didnt get back to you..i know it was important to you that i did but i think i answered it with what i posted ..trio ham rigs were another one and the first yaesus..ft200 comes to mind ..yes and drake ..had so many radios i would have to think of models ..a scope would not really show if its am with single sideband (usually upper side) or double sideband with carrier suppressed or reduced ...how ever a specturm anayler will show instanly if the radio has one or both sidebands on the am carrier ...or if you tune into the am station on ssb you will hear the audio clearly on one side band (zero beated) and not the other(alot of poorer overseas sw stations use a single sideband with carrier to save on both power and expense) .most cbers would not be ale to hear it on am mode if someone was using either /or as it sounds so close and lets face it 90% of cbers just jerk the ass out of their radios chasing the magic smoke .
i can see nothing wrong with CK qouting wiki..hell i would of too because i am dam lazy and could not be bothered pulling out a don stoner book or similar to scan it lol.

..ok back to work

 

[StrangeBrew]

I believe the Yaesu 840 is another one that uses one side band and a carrier with the stock filters (uses the SSB filter in AM mode), the optional AM filter is supposed to let both side bands pass.

 

[Captain Kilowatt]

The funny thing about trying to define AM is that technically speaking SSB is AM. It is an amplitude modulated signal. That would also include all those computer sound card modes like RTTY and even PSK too. This is why you need to fully define the type of AM that it is. Normally what we refer to as AM is defined as double sideband full carrier. There is also double sideband reduced carrer, double sideband supressed carrier, independent sideband and single sideband.

http://www.radio-electronics.com/in...-amplitude-modulation/what-is-am-tutorial.php

 

[HARDROCK]

Thanks
I believe it is the 120 to 130 percent audio. As stated jacked up audio. The cobra 29 front end is wide open as a barn door.
It can take it. The ts 50 cannot.

 

[BBB]

the people you listen to have jerkulated audio.

"Jerkulated Audio" My new phrase to use to describe crappy squared off audio. Thanks