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HF radio price enq 2nd hand

Submitted: Sunday, Oct 03, 2004 at 21:23

time waster

my uncle is selling a codan 7727-TB radio serial A4317 and I would like to know what it is worth it has all the bits with remote head only 8 channels and a tap arial if anyone could give me some info on this radio it would be very helpful
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ThreadID: 16756 Replies: 5
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AnswerID: 78702   Submitted: Sunday, Oct 03, 2004 at 21:35

Member - John (Vic) replied:

With the coming of BPL it is worth about $2.50.
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FollowupID: 338164   Submitted: Sunday, Oct 03, 2004 at 21:45

Mad Dog (Victoria) posted:

BPL, if it comes, will only affect the more densely populated areas wont it. Hard to imagaine they would spend money on expensive infastructure, repeaters etc, to service rural areas with little return.




FollowUp 1 of 6
FollowupID: 338165   Submitted: Sunday, Oct 03, 2004 at 21:53

time waster posted:

Whats a bpl?
FollowUp 2 of 6
FollowupID: 338168   Submitted: Sunday, Oct 03, 2004 at 22:10

Member - John (Vic) posted:

Ray the potential $ return is huge, don't be mislead about this.
Consider the ability to compete with Telstra and Optus in this field without having to undertake the laying of vast amounts of cable.
Virtually every home with a power line connected to it will have broadband access.

The VKS network is very concerned about it as there is big money behind it.
There has been several posts already on here with detailed discussion on this subject.
The areas of Australia that will be affected are huge and will render HF as a virtual useless technology in this country.
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FollowUp 3 of 6
FollowupID: 338170   Submitted: Sunday, Oct 03, 2004 at 22:20

Mad Dog (Victoria) posted:

John, I've just done a bit of research on BPL in Europe and Asia. It appears that this really a failed technology. The trials have meet with so many technical problems that can't be overcome that many have filed it in the rubbish bin but some power suppliers can only see $ signs and wont believe it. There are reports of it being more expensive than cable or telephone....expensive repeaters every 2000 feet. I cannot see it servicing much of australia at all.




FollowUp 4 of 6
FollowupID: 338171   Submitted: Sunday, Oct 03, 2004 at 22:23

Mad Dog (Victoria) posted:

Sorry for hijacking your thread Timewaster. BPL is broadband internet over the power supply wires.




FollowUp 5 of 6
FollowupID: 338226   Submitted: Monday, Oct 04, 2004 at 16:18

Member - AndrewPatrol posted:

BTW I have also been on the VKS site to find out more about this problem, and written an Email to the federal member for comms - the question I ask you - Have you?
FollowUp 6 of 6
AnswerID: 78709   Submitted: Sunday, Oct 03, 2004 at 22:34

Member - John (Vic) replied:

Ray there is a current trial running very successfully in the USA and application has been received by Dept of Communications here in Australia to allow for access to the frequencies used by the HF spectrum.
I have spoken to a gentleman who was a founding member of the VKS network and runs a very successfully business in the radio area for over 30 years here in Melb.
Who told me personally that he would now not sell me a HF in all good conscience now knowing what he knows.
He was just involved in a series of industry meetings on this matter and is now convinced that it will come to Australia in a big way.

If there is nothing to fear then why is the VKS network so worried about it ?, read the info on their web site.

There are 3000 amateur radio licenses in this country, this technology will affect about 1.5 million homes.

The early use of this technology had issues with close quartered repeaters etc etc but this is being overcome according to the gentleman I spoke with.

If all power lines were shielded then we would not have a problem, but they aren't and we will have a problem.
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Reply 2 of 5
FollowupID: 338174   Submitted: Sunday, Oct 03, 2004 at 22:53

Mad Dog (Victoria) posted:

Oh well we'll see what happens but myself and numerous other hams already have problems with power line hash. I only operate HF mobile and usually when away in the bush because of my proximity to a large substation. As you say the lines aren't shielded so the interference problem works both ways.




FollowUp 1 of 6
FollowupID: 338177   Submitted: Sunday, Oct 03, 2004 at 22:56

Member - John (Vic) posted:

Agreed Ray we will have to wait.
I don't want it as much as you or anybody else, but we live in a world of commercial realities and it's all about the $.
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Photo 1 - Canning Stock Route - June 2009
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FollowUp 2 of 6
FollowupID: 338200   Submitted: Monday, Oct 04, 2004 at 09:12

Member - AndrewPatrol posted:

I wanna know if this BPL is transmitted over power lines then how do mobile 4wd, Truckies, outback workers etc etc, users get by - with an extension cord???????????????????????????????
FollowUp 3 of 6
FollowupID: 338222   Submitted: Monday, Oct 04, 2004 at 13:57

Member - John (Vic) posted:

AndrewPatrol it is Monday and I am always a bit slow on a Monday.
But your question seems to be a bit slower than my understanding of same.

"I wanna know if this BPL is transmitted over power lines then how do mobile 4wd, Truckies, outback workers etc etc, users get by - with an extension cord???????????????????????????????"

The question I pose to you is what are asking about ?

BPL is Broadband Data over Power Lines and is the ability to transmit data over existing power line systems.
It radiates huge amounts of energy from these power lines in the feq that are used by HF radio's causing huge interference problems with the use of those HF radio's, basically rendering them unusable in areas covered by the interference. IE hundreds of "KM's" each side of a power lines.
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Photo 1 - Canning Stock Route - June 2009
Photo 2 - Flinders Ranges - July 2009

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FollowUp 4 of 6
FollowupID: 338225   Submitted: Monday, Oct 04, 2004 at 16:16

Member - AndrewPatrol posted:

What I mean, oh holy slow one, is if this BPL thingo comes in and stuffs up HF then we might as well all go and get ext cords so we can still communicate.
Yours
"Not as thick as some"
P.S. it was meant as a bit of a joke - roll on Tuesday
FollowUp 5 of 6
FollowupID: 338231   Submitted: Monday, Oct 04, 2004 at 16:56

Member - John (Vic) posted:

Andrew you buy a Sat phone. (No cord required in case your having a Monday issue also. LOL.)
And yes I have sent my letter and I don't own a HF.
Was just in the process of buying one and as per my response on this thread have now shelved the idea until we know one way or the other.
But don't hold your breath for a positive outcome to the HF community.
The $ falls the wrong way for us in this issue.
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Photo 1 - Canning Stock Route - June 2009
Photo 2 - Flinders Ranges - July 2009

VKS737 - Mobile 6352 (Selcall 6352)

FollowUp 6 of 6
AnswerID: 78710   Submitted: Sunday, Oct 03, 2004 at 22:36

Mad Dog (Victoria) replied:

If you don't get any joy here try the yahoo codan group. These guys will know.

http://groups.yahoo.com/group/codan_outback_radio/




Reply 3 of 5
AnswerID: 78771   Submitted: Monday, Oct 04, 2004 at 13:50

Bob Y. - Qld replied:


Timey,

I sold a Codan 7727B with cradle, power lead(suppose to be a rare as hen's teeth) and spring base(no aerial), for $350.00. This was just over 2 years ago, and the radio would have been about 18 years old then. Included ten channels, though the buyer didn't need all of them, eg 2 or 3 Mt Isa SOTA channels.

Used a similar HF, a 7727C, for many years, in a number of 75 series utes. Depending on channels fitted, could talk for over 1,500kms, or vehicle to vehicle, in convoy. Had 2 RFDS Radphone channels fitted, so if ABC, or John Laws weren't entertaining, then one could listen to calls, or even make a call. Recall mustering one day, and talking to the Boss in Brissy, describing the bullocks we were putting together. Who said communications are a lot better now??

I'd suggest that $300 would be the going price now. As for the doom and gloom stories, HF doesn't always perform well from mobile sites, in electrical storms, at least. Does manage a little better from base to base, in same situation. Can't beat 'em when the weather's clear!

Hooroo...
Reply 4 of 5
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AnswerID: 79157   Submitted: Thursday, Oct 07, 2004 at 00:29

geocacher (djcache) replied:

TW,

Depends what frequencies are installed. BPL issues aside (and I am worried about it and have written to Dept CITA) without VKS737, RFDS or RadTel frequencies installed it is near to worthless.

The frequencies will cost about $100 per channel to change ($30-40 for crystal and components and rest for labour and bloody expensive test equipment) so to get 2 common VKS frequencies as a minimum will start the setup cost at $200.

Then it depends on whether the tapped whip can accomodate frequency changes or a new whip is needed, the cheapest new whip is $120-150 for one from FAMPAC and a Terlin will set you back at least twice that.

If it has all the right frequencies for your use, the mounting brackets, is a remote not local head model, and all the leads for it, it is probably worth $300-450 and I have seen a remote head 7727TB with all 5 VKS737 frequencies and a suitable whip sell on ebay for over $500. Without the antenna about $250-350 depending on frequencies.

Watch ebay for a bit, you'll get the idea.

If you really want a HF spend the extra and get an 8525 or 8528 they only need an eprom reprogrammed to get a bucket load of frequencies and you can pick up an 8525 for not much more, the reprogramming costs about $85 from Telstat and they will drive an autotune if you go down that track later.

Dave
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