In this episode I cover the remaining Receiver section controls of the TS940S.
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Hosted by MrX on 2018-11-21 is flagged as Explicit and is released under a CC-BY-SA license.
Tags: HF, Ham, Amateur Radio.
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"I can hear you between my signals."
--Definition of QSK
This netcast is a personal project. From time to time in my life I've encountered things that I want to share with others. Sharing will be the name of the game here. The topics are sure to be varied, from computers and technology to politics and sociology, from pet peeves to in-depth software how-tos. I'm not sure there's any way to put a classification on what you might hear when you listen, but the hope is that no matter what the subject it will always lead to outrage, thoughtful contemplation, sounds of disgust, a nod of agreement, a fist-shake of righteous indignation. If I can spark some neural activity or inspire a conversation, I have done my job properly.
I've already described the netcast to several people who have asked as "80% tech and 20% rant." That might be a good way to sum it up; or it may not. I'm jumping in the car and going along for the ride just like you are. Along the way I hope I put out some interesting information, get tons of feedback from listeners, and overall simply engage the human race (at least the part of it that is listening to me) in a broad dialog.
So dip your toes in. The water's fine. You can find the OGG Feed link at the top of the page for downloading the audio episodes to your favorite podcatcher. Let's see where the mood takes us.
Intro and Outro music is "Sly Bone" by Larry Seyer.
The controls covered are
- AF / RF gain
- (1A) AF, Audio frequency gain control (Volume)
Turns the volume up and down
- (1B) RF, Radiofrequency gain control (From the Kenwood manual)
RF GAIN is controlled by changing the AGC (Auto Gain Control) threshold voltage. Adjusting the RF GAIN so that the S-meter reading increases to a point just lower than speech peaks. This also reduces noise during reception. For normal operation, this control should be turned fully clockwise for maximum sensitivity.
- CW VBT (From the Kenwood manual)
- Carrier Wave Variable Bandwidth Tuning Control
This control is very similar to the SSB Slope tuning controls. However, with the CW VBT control, both sides of the IF passband are narrowed at the same time.
- SSB Slope Tune (High pass low pass audio filter)
I mention that the radio uses phase locked loop technologies.
Below is an article in Wikipedia about PLL (Phase locked loop)
https://en.wikipedia.org/wiki/Phase-locked_loop
I mention that the radio doesn’t use valves.
Below is an article in Wikipedia about valves (Vacuum tubes)
https://en.wikipedia.org/wiki/Vacuum_tube
Dry joint
I mention that the radio developed a dry joint
Below is an article in Wikipedia about soldering that covers dry joints
https://en.wikipedia.org/wiki/Soldering#Dry_joint
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