[Elecraft] CW skimmer setup question

Larry Phipps n8lp at telepostinc.com
Tue Sep 3 08:23:33 EDT 2013


Two observations...

Poling rate of 100 is fine for LP-Bridge, since the traffic is 
intercepted and responded to from memory. With a standard bridging 
program, all those requests are passed on to the rig. In the case of the 
K3, eventually the data rate will exceed the allowable amount and cause 
issues.

Timeout of 100 seems way too low. The program has to be able to try at 
least several times to respond to a request, especially since a standard 
bridging program allows packet collisions, and if there is just one 
compromised packet sent that the rig doesn't understand, there is not 
enough time for the next good one to get to the rig.

73,
Larry N8LP




On 9/2/2013 10:03 PM, elecraft-request at mailman.qth.net wrote:
> Date: Mon, 2 Sep 2013 18:11:20 -0700 (PDT)
> From: Chuck - AE4CW<AE4CW at att.net>
> To:elecraft at mailman.qth.net
> Subject: Re: [Elecraft] CW skimmer setup question
> Message-ID:<1378170680681-7578523.post at n2.nabble.com>
> Content-Type: text/plain; charset=us-ascii
>
> Mike,
>
> Please see my embedded responses below:
>
> Just downloaded CW skimmer and am using it with the LP Pan, E MU 0202 and of
> coarse the K3. I am in the process of setting things up and has some
> questions. As well just wanted to share the setup options I chose just to
> make sure they are ok.
> Under the settings tab....and then to the radio tab
> 1. I have set hardware to softRock-IF (as per LP Pan site) is this correct?
>     YES
> 2. Sampling rate I am going to use is 96 and I did set the same on the E MU
> 0202
>     OK
> 3. Pitch is set to 600 as is the K3
>     OK
> 4. The Audio IF I am not sure what to set that too as I am not running any
> SDR software. The only answer I could find for the setting of the was to set
> the Audio IF at -6000 and take away the global offset from your SDR
> software. I am not using SDR software so is it left at -6000?
>     YOU WILL NEED TO ADJUST THE AUDIO IF SO THAT THE CW SIGNAL LINES UP WITH
> THE SKIMMER FREQUENCY INDICATOR, I.E. THE GREEN POINTER.  MINE IS -5140.
> The Audio tab is set as follows.........
> 1. Sound-card driver is set to MME
>     OK
> 2. Signal and Audio devices are set to my E MU 0202 cards
>     OK
> 3. Channels was left at Left/Right= I/Q
>     I HAD TO CHANGE TO Q/I.
> 4. Shift Right channel data was left at 0 samples
>     OK
> The Rig tab is set as follows..........
>     I HAVE NOT USED VSP MANAGER...RATHER LP-BRIDGE, BUT SEE BELOW FOR MY
> SETTINGS IN THE SKIMMER CAT OMNI-RIG PANEL
> 1. Rig K3
> 2. Com port to be set when I use VSP manager to set up a virtual port pair.
> 3. Baud 38400
>     OK
> 4. Data 8 bits
>     OK
> 5. Parity none
>     OK
> 6. Stop 2
>     THE K3 USES 1 STOP BIT
> 7. RTS set to High....not sure about this?
>     LOW
> 8. DTR set to high as well and not sure about this?
>     LOW
> 9. Poll set to default 500
>     100
> 10. Time out set to default 4000.
>     100
> Not to concerned about other tabs at this moment in time. Just wanted to see
> if I am on the right track with those who have this program up and running
> with their K3
> Thanks for your time
> Mike
> VE3WDM



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