Latest firmware

[Ian Maude]

Hi all,
I just downloaded and installed MCU 2.77 and DSP1 1.58.  It seems to
work fine but the meters seem to be responding differently.  The ALC
meter seems fine but the compression one now seems a little lazy and the
rig seems to want more drive from the mic.  Is it just me?

Ian

--

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455

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[Stewart Baker]

Hi Ian,
I think that you meant 1.77.

If by lazy you mean a little slower responding, then I think that
I see the same.

Must get the scope out, look at waveforms to see if I can spot the
difference :-)

73
Stewart G3RXQ
On Tue, 18 Mar 2008 12:10:03 +0000, Ian J Maude wrote:
> Hi all,
> I just downloaded and installed MCU 2.77 and DSP1 1.58.  It
seems to
> work fine but the meters seem to be responding differently.  The
ALC
> meter seems fine but the compression one now seems a little lazy
and the
> rig seems to want more drive from the mic.  Is it just me?
>
> Ian


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[Geoffrey Downs-2]

Can anyone tell me what  "SSB TX power overshoot corrected" means in the MCU
1.77 release notes?

Like Roy W4WFB I notice an apparent reduction in average ssb power out. i.e
for any given power setting, my external output meter does not kick up as
far as it did with MCU 1.75.

73 to all

Geoff
G3UCK




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[Bill VanAlstyne W5WVO]

I believe the "power overshoot" issue was that the transmitter, when set to a
reduced power level like 20 watts, would momentarily put out full power when
first keyed. This could potentially damage a linear amplifier that was
designed to see 20 watts input and suddenly sees 100 watts for a fraction of a
second.

Perhaps this fix had an untoward side-effect. I'm sure we'll find out soon.

Bill W5WVO


Geoffrey Downs wrote:

> Can anyone tell me what  "SSB TX power overshoot corrected" means in
> the MCU 1.77 release notes?
>
> Like Roy W4WFB I notice an apparent reduction in average ssb power
> out. i.e for any given power setting, my external output meter does
> not kick up as far as it did with MCU 1.75.
>
> 73 to all
>
> Geoff
> G3UCK
>
>
>
>
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> You must be a subscriber to post to the list.
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