One thing Al forgot to mention is that the roofing filters of the
IC-7800 are at 64 MHz.
It won't be easy for Icom to get them as effective as Ten-Tec's 9
MHz filters!
73
Rick
-----Original Message-----
From: tentec-bounces@contesting.com
[mailto:tentec-bounces@contesting.com]On Behalf Of
al_lorona@agilent.com
Sent: Wednesday, February 11, 2004 2:39 AM
To: tentec@contesting.com
Subject: [TenTec] RE: More Orion redefines the meaning of ... AGC
OFF
> ... but one can put up with some deficiencies in
> $800 radio vs. "ultimate" $3.6k radio.
> Can we discuss topics rationally or is this really TT
> Worshipers Cult forum?
>
> Yuri
Yuri,
Careful! When $9000.00 Brand X radio comes out, folks might hold
you to
the same standard you have so nicely stated in your message
above. In
other words, replace "$800" with "$3.6k" and replace "$3.6k" with
"$9000.00".
I hope saying this does not put me in "TT Worshipers Cult".
Seriously, Orion is no longer "ultimate". That title now claimed
by
Brand X radio. See
http://www.icom.co.jp/world/products/amateur/7800/index.htm .
By the way, there are a couple of things that we can scrutinize
about
this radio, when it becomes available. One is that the narrowest
roofing
filter is 6 kHz. Other is that there is built-in switching power
supply,
which has potential to mean trouble. Lots of press is being
devoted to
the 'clean' transmitter, so we will be looking very closely at
that (for
the money, how much 'cleaner' than the Yaesu Class A
transmitter?), as
well as to the logistical problems of running a radio with 28V
finals on
12V that requires 800 VA on transmit.
Also, one thing already bothers me. It is the way that Icom is
touting
the 4 DSP chips inside, as if they're all used for the same
purpose.
Actually, there is only one DSP for the main RX, one for the sub
RX, one
for the spectrum display, and one for the transmit DSP.
Also, the ominous message "some frequency bands not guaranteed".
Have no
idea what that means.
Also, this from the spec sheet: "Two types of receive
preamplifiers:
Preamp 1; Boost low level signal improving intermodulation
characteristics
Preamp 2; Boost low level signal improving receiver gain"
Wow, a preamp that improves the intermod characteristics?! Didn't
someone just pooh-pooh that a couple of days ago?!
Al W6LX
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