Envelope-to: dave@picks.force9.co.uk
Delivery-date: Thu, 02 Jun 2005 08:35:35 +0100
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From: Reeves Paul <Paul.Reeves@uk.thalesgroup.com>
To: "'rsgb_lf_group@blacksheep.org'" <rsgb_lf_group@blacksheep.org>
Date: Thu, 2 Jun 2005 08:34:28 +0100
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Subject: LF: RE: Re: RE: RA1792
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Hi Mal,

I'm not exactly the most active person on this group, being rx only at this
stage (and very shaky cw!), but I cannot resist joining in on this topic.
The RA1772/1792 receivers are arguably considerably superior to almost all
amateur grade receive systems available today, despite their age. Sure, they
need some care but the components are easily available, unlike the SMT/VLSI
based amateur gear. The RF performance in terms of dynamic range is
comparable (I concede improvements in technology, but these have only
managed to equal 30 yr old designs). The oscillator phase noise and
stability is certainly better than more recent gear and the filtering is
also better - and if the optional phase corrected filters were fitted then
one of the DSP plus points goes away. The ergonomics are definitely superior
but, ok, you do need a 19" rack! DSP filtering in the recent amateur gear
is, in any case, implemented at a very low IF (barely above audio) and
equivalent filtering, or, better, more sophisticated processing
(correlation, error detection etc) could easily be added outboard of one of
the  older receivers. Since this processing would end up as something like
WOLF, ARGO, etc I don't expect you to quite agree with me ;-)  I would
certainly like these rxs to be 300 euro (or less) but they are still MUCH
less than the amateur 'equivalent'and, I think, good value. 

73s
Paul    g8gja

-----Original Message-----
From: hamilton mal [mailto:g3kev.ham@virgin.net]
Sent: 01 June 2005 06:27
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: RE: RA1792


----- Original Message -----
From: "Alberto di Bene" <dibene@usa.net>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, May 31, 2005 8:16 PM
Subject: LF: RE: RA1792


> hamilton mal wrote:
>
> >Alberto I know you are waiting for my opinion about this RX. I would not
buy
> >this old technology with degraded components at the prices that suppliers
> >are asking both in the UK and other parts of EU.
> >The price for such a Rx would be about 300 Euro max and even then its a
risk
> >from the maintainence end.
> >The price that dealers in the UK are quoting for this old heap would buy
you
> >a nice new dedicated T/RCVR for the amateur bands and more than stable
for
> >data modes for use on LF and a quarter the size.
> >Think about it!!!!!!
> >de Mal/G3KEV
> >
> Hello Mal,
>
>   a voice outside the choir ! It's always interesting to hear opinions
> dissenting from those of the others, as they can convey new information.
> So what you are suggesting to me is to negotiate the price down to about
> one half of what has been requested... I am sure to be able to
> obtain a price reduction, as, knowing who is the seller, his first word
> rarely is his last. But 50% discount seems a bit too much...
> I don't need a transceiver, I have already a Kenwood TS-950SDX which I
> like a lot. What I am in search of, is a dedicated receiver
> for my intended useage.  Will keep im mind your opinion, thanks for it.
>
> 73  Alberto  I2PHD
Hi Alberto.
It has already been pointed out that these Receivers are 15-20 years old and
in my opinion a RX that old is not worth more than around Ł200 ie Euro 300
approx, in fact Ł100 would be more than enough.
The specification for the RX is good but AGE is against it !!! There are
more high tech and advanced creatures about these days, with Digital
filtering etc better suited for your job.
73 de Mal and definitely not in the Choir or a Gang nor being lead by the
nose!!

>
>
>