new hf radio
Submitted: Monday, Apr 30, 2007 at 17:21
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Gob & Denny
goodday all
well had the new codan ngt with autotune aerial installed last week and what a difference from the old unit
we went down to won wron near
yarram on saturday and on the way
home we called into
alice springs base and had a great signal and voice clarity (about 2500ks)
and on sunday on the way back to melb we stopped near pakenham and had a convesation with charters towers base and althuogh not as good was still a reasonable copy
to say i am happy is an understaement as i didnt have to get out and change tappings and could scan all set channels including vks and radtel
steve
Reply By: Member - John (Vic) - Monday, Apr 30, 2007 at 19:29
Monday, Apr 30, 2007 at 19:29
The ability of the NGT to process and clean up signals is second to none in my experience.
Having listened on a side by side basis to various Barret's as
well as earlier model Codans and the way they had struggled with signal clarity and then listened to the NGT its chalk and cheese.
The auto tune also allows you the ability to do so much more as Footy points out.
Mine scans constantly for Selcall's on all VKS freq plus I use Bcon for remote messaging and position fixing.
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Reply By: Member -Signman - Tuesday, May 01, 2007 at 11:50
Tuesday, May 01, 2007 at 11:50
Being a VKS737 Base Operator (Adelaide/Sunday) I make a lot of contacts with our Members that are out & about. I mostly give sig reports, and on occasions enquire as to the equipment being used.
In my opinion- a good tapped whip antenna will out perform an Autotune antenna. Maybe it's because of the 'loading' required in the Autotune to establish frequency resonance- where as a (good) tapped whip is not a compromise. And a tuned long wire or dipole give the best results.
Also, on some occasions- the old crystal controlled transceivers (such as the 7727) can outperform the newer synthesised units.
Some of these
test have even been carried out on a side-by-side location.
Also, for anyone intending to fit HF radios- please use a HIGH VOLTAGE 20A fuse. Not the normal spade or glass fuse, even if rated at 12V 20A- these will not handle the rapidly varying current draw on transmit.
If you log in on Sunday
Adelaide scheds- say G'day & mention ExplorOz
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