Where's the bass?

[N4LQ-2]

RE: My K3....Audio seems to be totally cut off below 300hz. My subwoofer is
unhappy. What's with that? My 870 , 7800 and O7 rocked but this K3 is
"bassless". Yes I tried the RX EQ, passband etc. Event he waterfall is cut
off past 300hz when trying to do digital.

N4LQ
Steve Ellington
[hidden email]
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[Ed Muns, W0YK]

> RE: My K3....Audio seems to be totally cut off below 300hz.
> My subwoofer is unhappy. What's with that? My 870 , 7800 and
> O7 rocked but this K3 is "bassless". Yes I tried the RX EQ,
> passband etc. Event he waterfall is cut off past 300hz when
> trying to do digital.

What value is LO CUT?

73,
Ed - W0YK

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[WILLIS COOKE]

Steve, I am looking at the waterfall of my Kenwood
TS-850SAT and it cuts off at 300 Hz with the ssb
filter and at 400 Hz with the CW filter.  That is what
communications receivers do.

--- n4lq <[hidden email]> wrote:

> RE: My K3....Audio seems to be totally cut off below
> 300hz. My subwoofer is
> unhappy. What's with that? My 870 , 7800 and O7
> rocked but this K3 is
> "bassless". Yes I tried the RX EQ, passband etc.
> Event he waterfall is cut
> off past 300hz when trying to do digital.
>
> N4LQ
> Steve Ellington
> [hidden email]
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
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>
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

Willis 'Cookie' Cooke
K5EWJ
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[Barry N1EU]

Yes, currently the K3 rx audio passband rolls off below 250hz.  It's a limitation in DSP that hopefully will get opened up soon.

No, it's not an issue of "what communications receivers do".  The Orion passband is flat down to 50hz.

73,
Barry N1EU

pappy_c wrote

That is what communications receivers do.

--- n4lq <[e-mail]> wrote:

> RE: My K3....Audio seems to be totally cut off below
> 300hz. My subwoofer is
> unhappy. What's with that? My 870 , 7800 and O7
> rocked but this K3 is
> "bassless". Yes I tried the RX EQ, passband etc.
> Event he waterfall is cut
> off past 300hz when trying to do digital.
>
> N4LQ
> Steve Ellington
> [e-mail]
> _______________________________________________
> Elecraft mailing list
> Post to: [e-mail]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft   
>
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>


Willis 'Cookie' Cooke
K5EWJ
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[P.B. Christensen]

> No, it's not an issue of "what communications receivers do".  The Orion
> passband is flat down to 50hz.

Agreed, Barry.  While not considered "traditional" communications audio,
expanding Rx audio bandwidth down to 50 Hz is a whole new listening
experience.

I also notice that in CW, the K3's Rx audio bandwidth cannot be adjusted to
match the greater bandwidth offered in SSB.  Hopefully, that too will be
addressed later.  On a clear and open band, I enjoy listening to CW with Rx
bandwidths of 3.6K or more.

Paul, W9AC

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