Welcome to NEW ZEALAND. Population 4,500000 Located in the southern region of Pacific Ocean, about the same size of Great Britain. Six pocket sized Cities house 90 percent of the population while a few reside in the country like me. If you're looking for a rest & recreational break then Zealand could be serious contender for this. You can hire a 'motorized camper' and do your own thing here. If your passing by please call in, enjoy the view, work a bit of DX and maybe go for a swim. Summer comes round Christmas while late January is a good time to visit, everyone's back at work, less congestion, cheaper prices & good weather. Don't forget we drive on the left side of the road. Apart from this small dilemma your US Dollar or Euro offers a currency bonus over Kiwi, while there's no tipping here.
Next is a 'blog' on how to Dyno Tune your Antenn for shattering results!!!!!
Is there a slope pattern in front of your Antenna, gentle or steep? Is there water or land at the slopes edge? Do you have a water to horizon view in front of our antenna? Do you have rising ground behind your Antenna ? Do you reside at the 'head' of a valley ? Do you suffer from 'blocked' clear view dueto buildings orhills? If any of these scenarios apply to you then here's a way tune hiddengain streams for positive advanage. Firly build a rig that can raise & lower your Antenna's height above and below where it is now. Next, 'peak ' a DX signal's 'direction', then adjust the Array's height factor while looking for positive Signal variance's on your S meter. In doing so, you may find several peaks & nulls, nulls show up as sudden signal dips Placement in one of these will reduce your A-far DX reception andand heighten your local close in reception. Once a peak is found, simply cross reference it on 'TX' by logging on to 'w.w.w.remote SDR dot org' find a suitable receiver, tune it to your transmitters frequency and note its digital S meter's reading. Compare it to your 'start off' reference height reading:- positive variances of + 10dB or much more can show. Failing this, a fellow DX station A-Far will be suffice for a S reading. Now both TX & RC positive variance readings should 'equal each other' meaning your tune -up is excatly correct & balanced. Note:- for sites with forward slope factors of 25 ~ 45 degrees Antenna's operating on 20m need only be placed at 25 ~ 35ft. In doing so your primary skywave & reflected ground wave will now be in phase giving you additional gain ! Go to 40 ft and you primary sky wave will be partly or fully cancelled by the reflected sky wave, a small height adjustment will reline these angles for you so the cancellation is removed. Note optium signals may well coincide close by anull. Thus 'Final Array Placement Height' should always be checked if you want the most from your site. HFTA computer simulation indicates indicative height factors for your site, while this method offers a custom site tune up for factual gain extraction that you can SEE. This method applies to single Array installations of any design, polarity & frequency, while the pure mono band operator will find the results dramatic.
HF signals can be affected by your local terrain's elevation, slope, shape & orientation. In some cases to form primary and secondary wave distortions which can be very positive if tuned properly. Additional signal doubling can take place at the Ocean's water based horizon, this secondary reflected sky wave has a X 2 gain attachment at your QTH if extracted correctly. Additional close-in re reflections off water or terrain due to shape, slope and height keep building further gain streams while destructive nulls lurking in the back ground can kill the whole deal & lead you to beleive youre in a dead spot Well the good news is youre not, what ever your situation, this blog may HELP YOU see a dramatic improvement via a concise vertical adjustment.
Best regards John. ZL2 JBR
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