[Wswss] THANKS FOR YOUR HELP TEAM RE WSJT PROTOCOL, CONTESTING & DXING

[Lance Collister]

On 1/14/2010 3:33 AM, K6XN wrote:
> Team, thanks to all who provided help, advice and answers to my rookie
> questions re WSJT last week for use in contesting and DXing. Thanks to your
> help and advice I have now worked a lot of DX using the JT65a WSJT mode. In
> only three days using less than 40W I have completed with a casual effort
> test QSOs with stations in 12 states and 14 countries using JT65a on the
> 80m, 40m, 20m and 15m bands. Most of the stations I have worked were running
> less than 25W and were using modest antennas e.g. dipoles and verticals. One
> station in Poland on 20M, SP4KM, was only running 10W and he was 599 with a
> signal -12 dB under my receiver noise.  Most had signal levels 10 dB to 20
> dB under my receiver noise level. Special thanks to Russ, K6KLY and Tom K6EU
> for answering my rookie Bozo WSJT questions by telephone. I hope to work
> some of you in the pileups in the upcoming ARRL January VHF contest using
> WSJT modes and more traditional modes ( SSB and CW) on 6M, 2M, 220 MHz, 430
> MHz, 903 MHz and 1296 MHz from CM87. I am snowed out of my CM99 QTH in the
> Sierras but I will try to give you some multipliers from my low power more
> modest setup here in CM87.  KB, Ted, K6XN,  WSJT rookie but learning fast
> with your help.
>
>
>
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Hello Ted,

If you think JT65A is effective for weak signal work on HF, you will be amazed 
when you try it on VHF!  That is where the mode was originally designed to work, 
originally developed for EME.  And JT65A has basically moved 6m EME from a rare 
event between two unusually large stations, to rapidly growing worldwide activity 
enabling even 100w stations to complete a few EME contacts!  To give you some idea 
of the scope of this activity, I just completed working my 100th DXCC on 6m EME 
with this tool.  A checklist of tips on how to quickly get the most out of JT65 
for EME is on my website at http://www.bigskyspaces.com/w7gj/JT65.txt

However, JT65 also is an incredible tool for long distance tropo and multihop 
ionospheric propagation.  On 6m, you will find that D layer scatter JT65A contacts 
are possible any time of day between barefoot stations 600 to 1200 miles apart, 
and direct contacts closer than that are also made possible by the sensitivity of 
JT65A.

One thing to keep in mind is that random meteors are especially effective in 
causing QRM that renders JT65A ineffective for contacts under 1500 miles.  JT65A 
has proven most effective during times of day least prone to such meteor 
interference such as afternoons or evenings.  Some VHFers have found that JT65B 
and JT65C can be less prone to disruption by meteors on these shorter paths.  In 
Europe, the JT6M mode has become quite popular for taking advantage of random 
meteors.

GL and DX!  VY 73, Lance


-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
LIVE MESSENGER CHAT: w7gj at hotmail.com
2m DXCC #11, 6m DXCC #815

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