[TenTec] ORION II CW pile up readability

[Carl Moreschi]

Try using a much slower AGC.  The AGC can be so fast that it makes all the
signals the same strength.

Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message ----- 
From: <BobK8IA at aol.com>
To: <tentec at contesting.com>; <Tonno.Vahk at gildbankers.com>
Sent: Monday, January 28, 2008 5:27 PM
Subject: Re: [TenTec] ORION II CW pile up readability


>
> In a message dated 1/28/2008 10:48:09 A.M. US Mountain Standard Time,
> Tonno.Vahk at gildbankers.com writes:
>
> Guys,  could I get some advice. I have been trying to get used to my OII
for
> a while  now and in some instances it is great compared to my old fully
loaded
> MP's.  Sharp filters, great sensitivity, good strong signal handling, more
> effective  NR than MP, etc...
>
> But I find it extremely difficult to handle CW pile  up as it is so much
more
> difficult to read out single calls from pile up. They  all sound the same
and
> form a mass of signals. It was very difficult this  weekend on 160 to hear
DX
> station from the endless EU callers in his pile-up.  I don't know what it
is
> about the CW signals in MP that make them much easier  to distinguish
between.
> I have tried to play around with NR, RF GAIN, ATT, AGC  and BW without
much
> success.
>
> Tips  appreciated.
>
> 73
> Tonno
> ES5TV
>
>
>
>
>
> Like you, Tonno, I contest. For CW contesting, here are my  settings. I
have
> been using a Orion II for 2 yrs now with vy good success.
>
> CW Contesting:
>
> BW = 210 hz (go as low as you need, but caution since a lot of  callers do
> not zero beat. You will miss them with this radio. Make sure DSP  Filter
Length
> is at 199 taps
>
> PBT =  as desired. I find -30 to be good and I like LCW as  well.
>
> Roofing filter = I find 600hz adequate but sometimes use 1 khz  and
sometimes
> 300 hz
>
> AGC = A MED setting of mine = 0.12s Hang. 30 db/s decay,  0.99uv threshold
> (or wherever you want AGC to kick in)
>
> For 160 I use a PROG AGC setting = 0.51s hang, 5 db/s Decay, .84uv
threshold
>
> AGC Slope 1:10
>
> Main Rx SQL = -127 dbm
>
> RF GAIN = 72-94 depending on band and cndx
>
> NB, NR only as needed. I do find myself using NR 3 or 4 on 160  often
>
> These have been successful settings for running cw qso's at 150-170
q's/hr,
> 60 minute measurements, which is about my limit.
>
>
>
> 73, Bob  K8IA
> Arizona USA
> www.k8ia.com
>
>
>
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