Colin,
When it's there, it can be turned on or off, so they have to mention it in
the manual. It is by no means "standard".
Steve
----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, November 17, 2008 12:31
Subject: Re: Synchronous detection (was Re: Filtering report of the IC7000)
> perhaps it is a standard feature in icoms now?
> one of those things that is so integral that it doesn't appear in the
> manual?
> Or does the user have some control over the parameters?
> 73
> Colin, V A6BKX
> ----- Original Message -----
> From: "Phil Scovell" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, November 17, 2008 9:51 AM
> Subject: Re: Synchronous detection (was Re: Filtering report of the
> IC7000)
>
>
>>
>> Steve,
>>
>> I thought that's what it was. Oh, sure, I say that now, after you told
>> me
>> what it was, haw. Anyhow, I'm pretty sure I read about that in the
>> manual
>> when I got the R75 receiver but I don't see it mentioned, so far, in the
>> 7000 itself.
>>
>> Phil.
>>
>>
>>
>> ----- Original Message -----
>> From: "Steve Dresser" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, November 17, 2008 7:58 AM
>> Subject: Synchronous detection (was Re: Filtering report of the IC7000)
>>
>>
>> > Phil,
>> >
>> > Synchronous detection is the receiver's ability to lock on to a carrier
>> and
>> > supply that carrier's frequency to the detector during selective
>> > fading.
>> > When it works properly, as it does in the 2010, the result is to
> minimize
>> > the distortion on an AM signal that occurs when the carrier drops out
>> > leaving only the sidebands. As I said, it's one of the 2010's best
>> > features.
>> >
>> > Steve
>> >
>> > ----- Original Message -----
>> > From: "Phil Scovell" <[log in to unmask]>
>> > To: <[log in to unmask]>
>> > Sent: Sunday, November 16, 2008 23:10
>> > Subject: Re: Filtering report of the IC7000
>> >
>> >
>> > > Steve,
>> > >
>> > > I'm not even certain what synchronous detection is so explain. There
> is
>> a
>> > > lot of synchronous topics in the manual and if synchronous detection
> is
>> > > what
>> > > I think it is, I haven't discovered that to be in the 7000 radio.
>> > >
>> > > Phil.
>> > > K0NX
>> > >
>> > >
>> > >
>> > >
>> > > ----- Original Message -----
>> > > From: "Steve Dresser" <[log in to unmask]>
>> > > To: <[log in to unmask]>
>> > > Sent: Sunday, November 16, 2008 8:09 PM
>> > > Subject: Re: Filtering report of the IC7000
>> > >
>> > >
>> > >> Phil,
>> > >>
>> > >> Does the 7000 have synchronous detection? That may not be high on
> your
>> > > list
>> > >> of must-have features, but it's one of the best features of the
>> > >> 2010,
>> and
>> > >> almost impossible to find elsewhere.
>> > >>
>> > >> Steve
>> > >>
>> > >> ----- Original Message -----
>> > >> From: "Phil Scovell" <[log in to unmask]>
>> > >> To: <[log in to unmask]>
>> > >> Sent: Sunday, November 16, 2008 14:16
>> > >> Subject: Filtering report of the IC7000
>> > >>
>> > >>
>> > >> >I have tuned in some strong CW signals compared to the weaker ones
>> > >> >I
>> > >> > reported on the other day. The S9 signals tune down to about 80
>> > >> > Hz
>> > >> > compared
>> > >> > to the narrow 12 to 14 Hz of the weaker signals. I am saying that
>> > >> > anything
>> > >> > outside these thresholds, top and bottom, means the signals simply
>> > >> > isn't
>> > >> > there; they are gone, that is, cut off. Pretty narrow tuning. I
> am
>> > > also
>> > >> > copying weaker signals, that when tuning passed them with wider
>> > > filtering,
>> > >> > such as in the sideband mode and are hardly copyable, once the CW
>> > > filters
>> > >> > mode is buttoned on, the signals come up to a Q5 copy level and
> then
>> > >> > can
>> > >> > be
>> > >> > made even stronger by fiddling with the tuneable filtering. I've
>> also
>> > >> > tested the notch filter used for zeroing out a carrier that comes
> on.
>> > > It
>> > >> > vanishes when you hit the right frequency but very little change
>> > >> > is
>> > >> > noticed
>> > >> > in the background noise characteristics of the receiver. I also
> got
>> a
>> > > lot
>> > >> > of time during Sweep Stakes to play around with the sideband
>> filtering
>> > > and
>> > >> > witnessed first hand how narrow you can tighten down on a sideband
>> > > signal
>> > >> > and still copy him just fine.
>> > >> >
>> > >> > I still haven't learned how to set memories or scan, you get
>> > >> > mighty
>> > > tired
>> > >> > at
>> > >> > spinning the dial at 1 or 10 Hz, so I plugged in the desk
> microphone
>> I
>> > >> > purchased because I knew it would have up and down scanning
> buttons,
>> > > which
>> > >> > it does. Those work fine other than the fact you have to hold
>> > >> > them
>> > >> > down
>> > >> > during the scan and it would appear, from my frequency readings,
> that
>> > > you
>> > >> > are jumping 5 Hz in the sideband mode on the default setting so it
>> > >> > works
>> > >> > pretty well. It is pretty quick but not too fast that you just
> whiz
>> > >> > passed
>> > >> > the signal before you know it.
>> > >> >
>> > >> > Dumb me. I discovered this week, too, just playing around, it
> covers
>> > > the
>> > >> > FM
>> > >> > broadcast band but for good fidelity, I'm going to find me a
> bigger,
>> > >> > basier,
>> > >> > speaker because those in the radio are pretty tinny sounding. In
>> > >> > short,
>> > >> > it
>> > >> > would appear the 7000 will replace all my radios by a wide margine
>> and
>> > >> > this
>> > >> > includes my beloved Sony 2010 I have had for years. The 7000 is
>> about
>> > > the
>> > >> > size of a cigar box but you can pound nails with it due to its
> metal
>> > >> > construction.
>> > >> >
>> > >> > Phil.
>> > >> > K0NX
>> > >> >
>> > >>
>> > >>
>> > >> --
>> > >> No virus found in this incoming message.
>> > >> Checked by AVG.
>> > >> Version: 7.5.549 / Virus Database: 270.9.4/1792 - Release Date:
>> 11/16/08
>> > > 10:04 AM
>> > >>
>> > >>
>> > >
>> >
>> >
>> > --
>> > No virus found in this incoming message.
>> > Checked by AVG.
>> > Version: 7.5.549 / Virus Database: 270.9.4/1792 - Release Date:
>> > 11/16/08
>> 10:04 AM
>> >
>> >
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG.
>> Version: 7.5.549 / Virus Database: 270.9.4/1794 - Release Date:
>> 11/17/2008
> 8:48 AM
>>
>>
>
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