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Bias Is Really Just B(ia)S

SuperLid

SuperLid

Sr. Member
Feb 6, 2020
1,424
1,504
173
NY/NJ
Someone I know, sent this link to me. Quite interesting.....On one hand, there's a guy in Idaho, that struggle to make up five dollar words, in a great attempt to sound intelligent. On the other, this guy in TN, seems to make an extra effort, to sound as stupid as he possibly can.

I think I have heard it all now. Yep...:ROFLMAO::ROFLMAO::ROFLMAO:



SL
 
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When I was first playing CB radio many many years ago I had a texas star modulator, no bias, single transistor.
Started getting into SSB , delay is easy, bigger cap, boom,no chattering.
My little brother could 100% tell me when I was using the modulator, so I had him run it in his car, yep crunchy distorted signals on SSB regardless of the delay.
That's as good as the guys that tells newbies to run yur mike gain up, the background noise holds the relay open.......

Stomp Stomp

73
Jeff
 
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I think it might have something to do with the distance of the DX.

Several years ago, somewhere on this site, someone was talking about this, but with AM. They were saying that the scratchy overmodulation seems to go away with distance.

I run a Cobra 148 as a dedicated station monitor, with headphones and no antenna. I can tell that the comp style amplifiers I have need more bias. I think.

Listening to my Stryker 955 on an Xforce 4 pill, I can hear the scratch on SSB. DX reports say it sounds great, and this is from people I know would tell me if it didn't. The radio by it self sounds just as clear as AM.

My Icom 718 with power turned down into a Carl built 4 pill is the same way. DX reports are great, Station monitor says otherwise.

The only setup that sounds correct with an amp is my President Madison with a Texas Star DX500 putting out about 350w.

This has always made me wonder if I should try to make my other setups sound like the Madison and DX500? But if it sounds good on the far end, do I really need to?

Anyone else use a separate radio with headphones to monitor?
 
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Calling your amps "Donkey Stomper" says it all,

Listening from this side of the pond the quality standards of tx audio on 27.385LSB has improved markedly over the last few years,

In the past .385 had lots of people using scratchy class C amps or CB's with locked clarifiers (off frequency) & carrier set point misaligned for the radio's ssb filter,

I think more people now use HF sets & sound ok,

on 27.555 it was the Italians that often used class C cracklebox amps but that has mostly gone out of fashion too.
 
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bob85 said:
I think more people now use HF sets & sound ok,
Click to expand...
There are indeed. Even more, there are LOTS of people running Anytone, CRT, Radioddity and other radios made by Qixiang. Great audio and bang on frequency right out of the box. I also think that a lot of the folks who were running the crap class C gear were "old school" CBers who have passed on.

I've noticed the improvement in audio on 38 as well. Unfortunately, the improved audio has been accompanied by a big increase in foul mouthed assh***s, ops with a major attitude problem, and 24/7 noise makers like the 11111 guy and the crying baby. Oh well, you win one, you lose one LOL!
 
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BC Coyote said:
There are indeed. Even more, there are LOTS of people running Anytone, CRT, Radioddity and other radios made by Qixiang. Great audio and bang on frequency right out of the box. I also think that a lot of the folks who were running the crap class C gear were "old school" CBers who have passed on.

I've noticed the improvement in audio on 38 as well. Unfortunately, the improved audio has been accompanied by a big increase in foul mouthed assh***s, ops with a major attitude problem, and 24/7 noise makers like the 11111 guy and the crying baby. Oh well, you win one, you lose one LOL!
Click to expand...
The QX rigs, have a unique sound on SSB. They are easy on my ears. For my what they are, they are tough to beat.
 
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Lost Ram said:
I have no words for this!!!!!! This guy builds amps for a living and thinks Biasing does not work and it all sounds the same. I bet he does not have a simple china scope to see what happens with an RF signal.
Click to expand...
Never knew the difference until I heard it first hand. RM Italy 203P vs the Palomar Skipper is a big difference in SSB quality. Crackly SSB audio coming out of the RM Italy vs the crisp clean audio coming out of the Palomar Skipper.
 
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bob85 said:
Calling your amps "Donkey Stomper" says it all,

Listening from this side of the pond the quality standards of tx audio on 27.385LSB has improved markedly over the last few years,

In the past .385 had lots of people using scratchy class C amps or CB's with locked clarifiers (off frequency) & carrier set point misaligned for the radio's ssb filter,

I think more people now use HF sets & sound ok,

on 27.555 it was the Italians that often used class C cracklebox amps but that has mostly gone out of fashion too.
Click to expand...
Here's my donkey stomper
 

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Shadetree Mechanic said:
I think it might have something to do with the distance of the DX.

Several years ago, somewhere on this site, someone was talking about this, but with AM. They were saying that the scratchy overmodulation seems to go away with distance.

I run a Cobra 148 as a dedicated station monitor, with headphones and no antenna. I can tell that the comp style amplifiers I have need more bias. I think.

Listening to my Stryker 955 on an Xforce 4 pill, I can hear the scratch on SSB. DX reports say it sounds great, and this is from people I know would tell me if it didn't. The radio by it self sounds just as clear as AM.

My Icom 718 with power turned down into a Carl built 4 pill is the same way. DX reports are great, Station monitor says otherwise.

The only setup that sounds correct with an amp is my President Madison with a Texas Star DX500 putting out about 350w.

This has always made me wonder if I should try to make my other setups sound like the Madison and DX500? But if it sounds good on the far end, do I really need to?

Anyone else use a separate radio with headphones to monitor?
Click to expand...
I typical receive my audio and everything else on a Tentec rx 350.
But from time to time I also check my audio on my 148.
It shouldnt sound any different if you run 1 watt 100 or 10000 watts...if you linear and can monitor a trapizode.
The scope and REA say one thing. But your ears may say another. Trust your ears.
Don't be carrier pincher and keep you positives peaks within the stratosphere.
I like good audio, that's why Im rarely on the bowl.
 
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