[600MRG] modeling tutorial

Tue Sep 8 02:59:52 CDT 2015

Im amazed at the minute to minute variability of the nome circa 800kHz sig levels - sure would be nice to have a station there (again) and maybe an easier path than Fairbanks...

Laurence KL7L in G land today

> On Sep 8, 2015, at 05:46, Edward R Cole <kl7uw at acsalaska.net> wrote:
> 
> Wow!  What a story!  What a life experience!
> 
> I moved to AK in 1979 which coincided with the end of the pipeline years (I left the LA area for the same reasons).  I also moved with no job in-hand.  I was lucky to meet several hams working for the BLM at the Anchorage ham club which I joined after a few months.  That led to my summer job 1980-81at the Fairbanks BLM Wildfire Center Radio Shop.
> 
> Pacific Telecom (PTI) had just acquired RCA-Alascom which was renamed Alascom.  I 1984 I turned down an offer to be engineer with them responsible for the state-wide mw sites for a seasonal Tech job for a oil industry telecom outfit (what a mistake).  It was the last job I would have until 1989 when I went to work as VHF marine radio opr during the Exxon Valdez cleanup.  If I had taken the Alascom job I would have certainly met Ed as some point.  So much more I could comment on - but will defer that.
> 
> Does it occur to any of you than Ed would make a perfect member of the 600m group!  We have no stations that far north but I suspect he would be workable from my location a lot of the time (350mi).
> 
> 73, Ed - KL7UW
> 
> At 02:45 PM 9/7/2015, D.J.J. Ring, Jr. wrote:
>> AL7N is a fellow with lots of 600m experience, he was one of the last WT
>> operators at Alascom's WKR Nome Radio installation in the 1980s.
>> 
>> http://radiomarine.org/gallery/show?keyword=WKRIRT&panel=pab1_7
>> 
>> Nome Radio/WKR was once part of the US military “Washington-Alaska Military
>> Cable and Telegraph System” (Affectionately referred to as “WAMCATS”.
>> 
>> How long ago did his antenna system get upgraded?  He has had a very good
>> to excellent signal on 14050.0 kHz for quite a long time.
>> 
>> What is he running?  If he isn't using a beam pointed this way, I'm really
>> impressed as I've called him without a schedule on that frequency he
>> listens there and 3550, 7050 and 14050 like a coast station!  He came up
>> and had a 589 signal sometimes, mostly 56 to 579 which is a great signal
>> into Massachusetts from Fairbanks where he now resides.
>> 
>> 73
>> David
>> N1EA
>> 
>> On Mon, Sep 7, 2015 at 6:21 PM, Kenneth G. Gordon <kgordon2006 at frontier.com>
>> wrote:
>> 
>> > On 7 Sep 2015 at 17:48, D.J.J. Ring, Jr. wrote:
>> >
>> > > Rev. Rudy, "Hallowed Preacher of LF (and MF)," pray tell which is
>> > "better"
>> > > to invest time in?
>> > >
>> > > 4NEC2 or EZNEC?
>> >
>> > I found both of those to be somewhat difficult after trying them. They are
>> > not
>> > "intuitively obvious" let's say.
>> >
>> > At the suggestion of a ham on the ham-antennas forum, I tried a
>> > German-Japanese antenna modeling package named MMANA-GAL, which,
>> > like EZNEC, is free to download in its "basic" version.
>> >
>> > I was able to model several antennas with that, within only a day or two,
>> > and
>> > the results were very good.
>> >
>> > In fact, I was able to help an Alaskan ham, AL7N, whose forte is emergency
>> > traffic handling by CW, get rid of his "worm-warmer" and install an antenna
>> > which works far better even in his too-small lot.
>> >
>> > I was able to prove that his original "worm-warmer" was exactly that. After
>> > installing what I came up with using MMANA-GAL, his signal into the states
>> > improved quite a bit. From S-3 to S-4, to S-7 to S-9, to those stations
>> > with
>> > whom he regularly communicates. We were all very pleased.
>> >
>> > I was also able to prove to both him and to me that my vertical was causing
>> > an at least 15 dB reduction in MY signal level to his horizontal one, and
>> > vice
>> > versa, even on 20 meters. I had not thought that cross-polarization would
>> > make that much difference at HF, but apparently it can.
>> >
>> > Ken W7EKB
>> >
>> >
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> 
> 73, Ed - KL7UW
> http://www.kl7uw.com
>    "Kits made by KL7UW"
> Dubus Mag business:
>    dubususa at gmail.com
> 
> 
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