The Advantage of Synchronous Detection in the Sony ICF-SW7600GR
RHF
'portable' AM/FM Shortwave Radio
READ - The Advantage of Synchronous Detection in the Sony 7600G
-by- Daniel A. Grunberg
http://www.nyx.net/~dgrunber/7600g.ssi
~ RHF
.
msg
'nyx.net' doesn't resolve either here in MN or from a host in SF, CA.
Is this the current URL?
Regards,
Michael
craigm
If you really want to see the article, put the title in quotes and search
for it on google. You will get one hit and then can look at the cached
version.
That being said, the author of the does not really know how a sync detector
works, nor does he understand how it helps to receive a signal.
In other words, don't bother with this article.
The Shadow
"craigm" <no...@domain.invalid> wrote in message
news:dL_%i.6$YF4....@news.sisna.com...
How about this URL:
http://www.radio-electronics.com/info/receivers/synchdet/sync_det.php
The Shadow Kows
Lamont
msg
> msg wrote:
>
>
>>RHF wrote:
>>
>>>The Advantage of Synchronous Detection in the Sony ICF-SW7600GR
>>>'portable' AM/FM Shortwave Radio
>>>
>>>READ - The Advantage of Synchronous Detection in the Sony 7600G
>>>-by- Daniel A. Grunberg
>>>http://www.nyx.net/~dgrunber/7600g.ssi
>>>
>>
>>'nyx.net' doesn't resolve either here in MN or from a host in SF, CA.
>
> If you really want to see the article, put the title in quotes and search
> for it on google. You will get one hit and then can look at the cached
> version.
Indeed; that is always a good strategy but for archival references I
wondered if there was a correct URL.
> That being said, the author of the does not really know how a sync detector
> works, nor does he understand how it helps to receive a signal.
>
> In other words, don't bother with this article.
I didn't.
FWIW, I have always just zero-beated a BFO on AM weak or noisy signals
to improve intelligibility; on receivers with good LO and BFO stability,
this works well. In an SSB mode, the product detectors and narrower
filters are additional advantages for AM signals. As a simple
homebrew retrofit for a synch det. capability, have any readers
ever built an injection lock circuit that locks the BFO using
limited IF (perhaps best suited to older rigs) or added a phase
detector and error amp to drive a varactor on the BFO xtal for
newer rigs? I see that there is a not-well-regarded injection
lock mod for the r-390a, but I would appreciate hearing about
results for other rigs as well.
Regards,
Michael
RHF
Dan Grunberg's "Home Page" => http://www.nyx.net/~dgrunber/
Welcome - Here are some of my documents that may interest you.
TOPIC - SHORTWAVE RADIO
* Advice to Shortwave Newbies
(useful sources of information and useful links)
* Minimal Antennas and Grounds
(why they may be all you need)
* So You're Certain You Need an Outdoor Antenna
(with a link to a reasonable design)
* Why Antenna Tuners Aren't Necessarily Useful for Shortwave
Listening
(this article could save you some money)
* A Rambling Review of the Lowe HF-150
(a nice receiver)
* Nifty 48- inch (122-cm) Whip Antenna with a PL-259 Connector
* The Sony 7600G and Its Synchronous Detector
(why sync detectors are worth having)
http://www.mwcircle.org/res-receiver-sonysw7600g.htm
http://www.eham.net/reviews/detail/1215
http://www.eham.net/reviews/detail/1534
http://www.mwcircle.org/res-receiver-sonysw7600gr.htm
http://www.dxer.ca/content/view/8/53/
* Analog vs. Digital Receivers
(an introduction)
* Preventing Wire Antennas from Breaking in the Wind
IMHO - For the 'Price' the Sony ICF-SW7600GR 'portable'
AM/FM Shortwave {World Band} Radio is one of the Best
Radios featuring AM Synchronous Detection [.]
Read - PortWars
http://www.radiointel.com/portwars.htm
http://www.fixya.com/support/t166573-sony_sw_7600g_ats_909_sangean_head
sony no baloney ~ RHF
.
RHF
> In Message-ID:<dL_%i.6$YF4.99...@news.sisna.com> posted on Sun, 18 Nov
> 2007 11:45:38 -0600, craigm wrote: Begin
> >That being said, the author of the does not really know how a sync detector
> >works, nor does he understand how it helps to receive a signal.
>
> SD alleviating multipath issues to be sure I hadn't missed something,
> then came to the same conclusion as you have.
IMHO - He simply wrote the piece from the 'perspective' of a
Radio Listener {User} trying to Put-into-Words the Results
that he was Hearing. He was not trying to 'communicate' to
a Radio Engineer or Techie - http://en.wikipedia.org/wiki/Techie
thinking like a radio listener -who- enjoys the medium ~ RHF
.
RHF
> posted on Mon, 19 Nov 2007 01:35:39 -0800 (PST), RHF wrote: Begin
>
>
>
>
> >On Nov 18, 6:09 pm, Bart Bailey <m...@privacy.net> wrote:
> >> In Message-ID:<dL_%i.6$YF4.99...@news.sisna.com> posted on Sun, 18 Nov
> >> 2007 11:45:38 -0600, craigm wrote: Begin
>
> >> >That being said, the author of the does not really know how a sync detector
> >> >works, nor does he understand how it helps to receive a signal.
>
> >> I read the piece and was surprised enough to review again his claim of
> >> SD alleviating multipath issues to be sure I hadn't missed something,
> >> then came to the same conclusion as you have.
>
> >IMHO - He simply wrote the piece from the 'perspective' of a
> >Radio Listener {User} trying to Put-into-Words the Results
> >that he was Hearing. He was not trying to 'communicate' to
>
> >thinking like a radio listener -who- enjoys the medium ~ RHF
> > .
>
- their meaning,
-
- just say that sometimes SD makes the thing sound better.
BB - Yes sometimes AM-Sync does make 'things' sound better.
on that we can agree ~ RHF
.