[1000mp] FW: Couple

Sat, 22 Dec 2001 03:46:50 -0000

That explains why I never have heard the thumps--I never use the ATU!

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Paul Cassel
> Sent: Friday, December 21, 2001 19:12
> To: [email protected]
> Subject: RE: [1000mp] FW: Couple
>
>
> Actually I believe these thumps are the memory band edges for the 43 ATU
> memory slots.  If you watch the WAIT lamp on the display you will see it
> flash momentarily as you cross these frequencies.  As the user
> moves up and
> doen the band the ATU moves from one memory setting to the next and the RX
> is muted for just a fraction of a millisecond when this occurs.
>
> Paul VE3SY
>
>
> |-----Original Message-----
> |From: [email protected]
> |[mailto:[email protected]]On Behalf Of [email protected]
> |Sent: December 21, 2001 12:52 PM
> |To: [email protected]
> |Subject: Re: [1000mp] FW: Couple
> |
> |
> |Bob, W7SNR wrote:
> |
> |"...there are specific frequencies where when you are tuning one hears a
> |slight "thump" (as best I can explain it). On 20 meters it occurs at
> |14172, 14254 and 14335. Other bands have the same "thump" at specific
> |frequencies. Do any of you have the same "thump" on your M5's?? It's very
> |subtle but there. Can anyone expalin why this condition occurs?"
> |==========
> |All MPs and Mark Vs have the "thump" you mention.  It occurs every 81.92
> |kHz on the dial, apparently a harmonic of a digital counter in the radio.
> |
> |The first one you will hear is at 163.84 kHz (2nd harmonic) and the last
> |one is at 29982.72 kHz (366th harmonic).
> |
> |73, de Earl, K6SE
> |_______________________________________________
> |1000mp mailing list
> |[email protected]
> |http://mailman.qth.net/mailman/listinfo/1000mp
> |
> |
>
> _______________________________________________
> 1000mp mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/1000mp
>