Sunday, September 11, 2016

W4ZV's Pile Up buster Technique..........(For the K3 with cw skimmer)

KQ5S wrote I looked at this. The reason I want to use SKIMMER is to help locate where an OP is listening. By having my own SKIMMER I am able to see 599 or a call sign almost instantly and can click on the call or 599 and QSY to where it OP is listening (a little RIT helps to move off the exact frequency). The RBN only shows calls and there is the obvious internet latency. I am not sure this would work for my intended purposes.

That's exactly how I use Skimmer for pileup busting. You need the following: 1. K3 with KXV3 and KRX3. 2. LP-PAN ~$200...probably don't need the preamp option. 3. LP-Bridge free...allows running Skimmer and N1MM simultaneously 3. CW Skimmer software $75 4. A decent soundcard $100...see http://www.telepostinc.com/soundcards.html 5. P4 2.5 GHz computer...mine cost $90 on eBay.

You do NOT need: HamRadioDeluxe PowerSDR NaP3 (I haven't tried it but it's not necessary for what you described) CW Skimmer includes OmniRig which is all that's needed to drive the K3 directly (none of the above is needed).

The only limitation is that you're limited to 24 kHz bandwidth, which is a limit Alex VE3NEA imposes on the "Softrock on IF" mode. However I haven't found any pileups wider than 24 kHz! You do need to set the Sub RX on the DX station because Skimmer only sees IF OUT for Main and because the K3 always transmits on Main (VFO A).

The procedure is:

1. Tune in the DX station. If you prefer using the Main knob, double tap A>B to copy everything to the Sub RX. If you want to listen to the pileup and the DX station simultaneously you can set L-R MIX audio options in CONFIG. I use a Pileup Buster Macro to set everything up with a single button press.

2. Next set Main (VFO A) to the approximate center of the pileup. Skimmer will then see +/- 12 kHz around VFO A.

3. Listen to the DX station. When he answers N6KR, look for the "N6KR 599" decoder dot on the display.

4. Click the dot and you're ready to transmit.

I usually crank in ~50 Hz XIT so I'm not dead zero beat with others doing the same thing. :-)

Believe it or not, I've actually busted some huge pileups without even listening to them. One I recall vividly was the ST0R pileup on 160 in August. 73, Bill ---------------------

transmit and other Macros for the k3 with many thoughts and thanks to Alan K2ACK

K3

1 RAGCHEW TE+06+06+00+06+00+04+08+12;MN110;SWT12;SWH45;MN255;

2 DX TE+00+00+00-06+00+04+08+12;MN110;SWT13;SWH45;MN255;

3 VERYDX TE-06-06+00-06+00+04+08+12;MN110;SWT24;SWH45;MN255;

4 FLAT TE+00+00+00+00+00+00+00+00;MN110;SWT11;SWH45;MN255;

as found on the following website

Also see his Chaining of Macros discussion...

Thanks to Alana K2ACK for the posts at his site.

Cheers!

Steve

KG5VK

Wednesday, August 17, 2016

Propagation Tools a Presentation by KG5VK centered on ViewProp

Click here for the HTML version of my power point as Presented at the LCC (Louisiana Contest Club) meeting at the Shreveport Ham Fest this summer Any questions or comments may be directed to KG5VK at ARRL dot Net Cheers! Steve KG5VK

Thursday, July 07, 2016

W8TN's Ramblings: Building a K2AV FCP 160-M Antenna

W8TN's Ramblings: Building a K2AV FCP 160-M Antenna



This one has some excellent diagrams

FCP Info by DL2OBO - www.DM9EE.de

FCP Info by DL2OBO - www.DM9EE.de



Make sure you look at the Notes from Tom W8JI in this one

he makes some very good points,  just like he always does !

Bottom line is instead of folded radials FCP use short radials

made electrically longer with coils - however the difference is small

and as Tom said unless you really screw it up

These things just plain work !



Also the W0UCE.net page is broken



cheers!

Steve

W1UJ Folded Counterpoise (FCP) Project

W1UJ Folded Counterpoise (FCP) Project