Understanding the Relationship Between MHz and kHz on Shortwave Radios

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Discussion Overview

The discussion revolves around understanding the relationship between frequency units, specifically megahertz (MHz) and kilohertz (kHz), as they relate to shortwave radios. Participants explore how to convert between these units and clarify their meanings in terms of hertz (Hz).

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant states that 1015 kHz can be expressed as 101,500,000 Hz, which is challenged by another who corrects it to 1,015,000 Hz.
  • Another participant explains that converting kHz to Hz involves moving the decimal point three places to the right, indicating that 1015 kHz equals 1,015,000 Hz.
  • A participant suggests that converting from kHz to MHz is done by moving the decimal point three places to the left, leading to the conclusion that 1015 kHz equals 1.015 MHz.
  • One participant expresses confusion about the frequency readouts and attempts to clarify their understanding by converting both kHz and MHz to Hz.
  • Another participant points out that MHz is 10^6 and corrects the previous claim about converting 1.015 MHz to Hz, stating it should be 1,015,000 Hz instead of 1,015,000,000 Hz.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the correct conversion of frequencies between kHz and Hz, particularly in the interpretation of MHz. The discussion remains unresolved as participants provide differing views on the conversions.

Contextual Notes

Some participants appear to lose track of decimal placements during conversions, leading to confusion. There are also unresolved assumptions about the clarity of frequency readouts and their implications.

biferi
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I have a Shortwave Radio that tunes in on Kilo Herts.

So my display says
1015 kHz

Now if I want to write this out I would write
101,500,000 Hz

Now if I am on a Radio that tunes in on MHz and the display says
101.5 MHz

Now if I want to write this out I would write
101,500,000 Hz

Now this is what I do not understand they are both the same FREQ but I do not get how you tune them in on MHz and kHz?

I know MHz meens it will tune in at 1,000,000 Hz and if you tune in at Kilo Hz it will be 1,000 Hz

I hope I am asking in the right way if not please tell me?
 
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biferi said:
I have a Shortwave Radio that tunes in on Kilo Herts.

So my display says
1015 kHz

Now if I want to write this out I would write
101,500,000 Hz
I'd write 1015 kHz as 1,015,000 Hz
 
biferi said:
So my display says
1015 kHz

Now if I want to write this out I would write
101,500,000 Hz

You're losing track of decimal places, the 'k' in kHz moves the decimal point 3 digits to the right of a number to go to just Hz. Therefore 1015. kHz = 1015000. Hz = 1,015,000 Hz.

Likewise, converting to MHz from kHz is as simple as moving the decimal point 3 digits to the left, so 1015. kHz = 1.015 MHz.
 
Ok so if I see a readout of
1015. kHz
I would say
1015,000. Hz

And if I see a readout of
1.015 MHz
I would say
1,015,000,000 Hz

Do I have it?
 
Not exactly... MHz is 10^6, so 1.015 MHz is 1,015,000 Hz. You might be just better off quoting all the frequencies as MHz or kHz though.
 

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