Gary - Thanks for offering to mail the manual, but Kaito did email me a link, and I downloaded and printed it off. As you said, I did not find instructions on how to change from 9 to 10 Kc.steps. The performance is quite a bit better than the G8 on domestic AM BCB, and so is the audio, so it should be a pretty good port-a-table sort of radio. The only AM splatter on domestic frequencies is AM 740, a powerhouse from Toronto which does seem to have a wider audio bandwidth than any other station on the dial here.
toggle quoted messageShow quoted text
I have not had a chance to try it out in the daytime either, but I have not forgotten about it. - FARMERIK
--- In ultralightdx@..., D1028Gary@... wrote:
Thanks for your message.
The CR1100 units were obviously designed for the Chinese domestic market
and can be set to tune in 9 kHz steps, but the neither the poorly-written
English manual nor the Chinese manual mentions how to do this. The Chinese
manual says that the steps tune in 9 kHz increments, and the English manual
say that the steps tune in 10 kHz increments. Lots of help, right?
But even if the CR1100 model here could be set to tune in 9 kHz steps, this
would hardly transform the radio into a prolific TP-chaser. The Si4734 DSP
filtering is fixed at such a wide setting (my guess is 4 kHz) that
domestic splatter would almost always cover any TP's that show up. Because the
radio will not tune in 1 kHz steps, there is no way to get 1 kHz farther away
from splatter (like with the PL-380).
If you still don't have an English manual for your CR1100, I would be happy
to mail you mine for free (if you can give me your snail mail address).
Both my wife (from Hong Kong) and I can read Chinese, so the more detailed
Chinese manual is the one we would use. Unless someone else wishes me to scan
and post the English manual, I'd be happy to mail it to you.
In a message dated 1/2/2010 9:50:05 P.M. Pacific Standard Time,
If the 9 Kc. steps were selected, would it be on frequency for the trans
I am disappointed the loop stick is not larger.
I did not get the English manual included. I emailed Amazon, and they said
contact the MFG. Since the controls are in Chinese, I thought perhaps
Kaito wrote the manual, so I emailed them. No answer, but it's a Holiday week
end here. You don't have the CR-1100 English manual scanned do you? -
--- In _ultralightdx@ultralightdxult_ (mailto:ultralightdx@...)
, D1028Gary@, D1
All of the radios you mentioned (G8, PL-380, CR-1110 and PL-600) are on
hand here, in this overcrowded shack.
The CR-1110 is a rather odd bird that has far better AM sensitivity on
high frequencies (especially the X band) than on the middle and lowband.
It was tested extensively against an aligned Sony ICF-S5W on allfrequencies
from 530-1700 kHz, and was found inferior in sensitivity to that classic
model on most AM frequencies, but clearly superior on the X band. Italso
did not suffer from the ICF-S5W's severe image reception issue, of course.
I did a mini-review of the CR-1100 back in June, which may be of
to you. Some of the information is dated (such as the praise of thegive you
PL-300WT, the only DSP model available at the time), but the rest should
detailed impressions on the model. Hope you enjoy it!DSP-enhanced
73 and Have Fun, Gary
Very impressed with the performance of the new Tecsun PL-300WT
Ultralight radio on medium-wave, it was a natural decision to place an
order with Amazon.com for the new full-sized Tecsun CR-1100 AM-FM
which uses the same innovative Si430/31 DSP chip from Silicon Labs.
new CR-1100 portable arrived from Kaito Electronics after a 4-day delay,
and payment of $69.99 plus $13.00 shipping (by USPS Priority Mail).
The CR-1100 is strictly a Chinese-market portable, to the extent that
of the controls are labeled only in Chinese. Despite this, Kaito has
provided a very basic (and poorly translated) English manual, as well as
standard and far more thorough Chinese manual. The AM frequency steps
been reprogrammed to 10 kHz, matching the North American market.
Immediately after arrival, the radio's out-of-the-box AM performance was
tested against a fully aligned Sony ICF-S5W portable (which has had the
frequency coverage extended to 1700 kHz). The comparison of these two
proved to be very interesting, and showed that while the CR-1100 has
good DXing potential on AM, it also has some puzzling shortcomings.
In comparison to the PL-300WT's sharp DSP-enhanced selectivity, the
had a tough time going up against the ICF-S5W, with its common 455 kHz
Murata filter. Local slop on the CR-1100 was more troublesome than on
PL-300WT, making it seem like Tecsun programmed the DSP chip to provide
wider selectivity setting on this music-oriented receiver. The ICF-S5W
to weakly receive KPQ-560 in the null of semi-local KVI-570 in the early
afternoon, while the CR-1100 could only produce KVI splatter. Low-band
sensitivity on the CR-1100 was very good, but not quite up to the
ICF-S5W standard. Although the CR-1100's low-band sensitivity will match
that of the PL-300WT, unlike the PL-300WT, the CR-1100 cannot tune in 1
steps, making it impossible to chase TP's on the 9 kHz splits.
The CR-1100 versus ICF-S5W contest became much more competitive on the
band, however, and on the X-band the new Tecsun was clearly far more
sensitive than the classic Sony portable. In fact, the CR-1100 sets a
standard for X-band sensitivity among portables, having weak signal
never experienced in extensive testing here. Weak fringe stations that
barely audible on the ICF-S5W had solid audio on the Tecsun.
Also notable in the CR-1100 was the complete freedom from image
of local stations, a major shortcoming of the classic ICF-S5W. The
image reception detracts greatly from its otherwise stellar performance,
the Tecsun DSP chip appears to have solved the problem entirely.
After the out-of-the-box performance test, the CR-1100 was disassembled
check the loopstick construction, and the possibility of alignment. Both
the PL-300WT and CR-1100 were designed to have a "no alignment" RF
which the DSP chip ensures maximum performance without loopstick
or adjustment of a 1400 kHz trimmer. In the CR-1100, there is a 4.25" x
.36" single-coil loopstick in the middle of the cabinet, which seems
odd because of the extensive cabinet space on both sides which would
placement of a much longer ferrite bar, if desired. Alignment was
by shifting the coil, but this had no effect on the CR-1100's
any AM frequency. Apparently DXers will need to accept the CR-1100's
sensitivity as delivered, unless they wish to transplant a larger
with a coil of equal inductance (which is certainly possible with all
extra cabinet space).
The CR-1100 also has a sensitive FM section, although again, for some
unknown reason it seemed slightly less sensitive than that of the
Perhaps there is a greater impedance mismatch with the CR-1100's short
antenna, but in any case the PL-300WT Ultralight can receive more weak
fringe stations here than the CR-1100.
The CR-1100 has a large music-oriented speaker and excellent audio, with
analog tone and volume control knobs. The 8-ohm speaker has a 1-watt
output. The radio also has 300 memories, and various digital tuning
capabilities. It operates on 4 "D" batteries, and comes in an attractive
black-brown cabinet. It is available from Amazon.com (via Kaito
$69.99 plus $13.00 shipping.
So after the full evaluation, what would be the CR-1100 verdict for a
dedicated medium-wave DXer? If you are a domestic DXer that concentrates
upper frequencies (especially the X-Band), the new CR-1100 would be
to beat. Its upper-band sensitivity (and generally good selectivity) is
likely to set a new standard for contemporary portables. Urban DXers
appreciate the complete freedom from image reception, and general
spurious products. Hobbyists who enjoy music reception will not be
disappointed in the CR-1100's audio qualities. However, if you wish to
transoceanic DX, or wish to experience the maximum potential of the
Silicon Labs DSP chip, my recommendation would be to pass on the
and go for the new PL-300WT Ultralight model. Its 1 kHz tuning ability
stellar selectivity (plus superior FM sensitivity) make it the obvious
choice for most medium-wave DXers.
73 and Best Wishes,
Gary DeBock (in Puyallup, WA)
* _farmerik@ * _farmerik@<WBR>._ * _farmerik
OK, now I get it. Sort of like the audio version of the screen break-up
digital video. I can see why it would be a problem for really weaksignal
DXing, however on my G8 I don't think I will miss any station strongenough
to actually listen to. entirely. The
Both the G8 and CR-1100 hear weak stations with less noise and
interference than my analog radios, but miss all the really weak signals
CR-1100 is significantly more sensitive and has less noise on its weakPL-600
stations though. Anyone have a PL-380 AND a CR-1100 to compare? My new
seems MUCH more sensitive than the CR-1100. - FARMERIKhtdx@ultralightdxult_ (mailto:ultralightdx@...) )
--- In _ultralightdx@ --- In _ultralightdx@<WBR>ul_ultralig
, Richard Berler <lrdheat@> wrote:of a
that vary between s/n's of 0, and s/n's that rise above zero...instead
The soft mute occurs when tuned exactly on frequency on weak signals
smooth rise or fall in the audible signal, the signal sounds like it isG8 and
flickering. The set, if soft mute is the default mode (as it is on the
PL-310), will semi mute the signal of a station that falls below (orrises
above) a certain threshold of signal strength, resulting in theflickering of
the audible signal.(mailto:ultralightdx@...) )
--- On Sat, 1/2/10, farmerik <farmerik@...> wrote:
From: farmerik <farmerik@...>
Subject: [ultralightdx] Re: G8 vs CR-1100 preliminary AM BCB
To: _ultralightdx@ To: _ultralightdx@<W_ultralightdx@ultralightdxult_
Date: Saturday, January 2, 2010, 9:49 AM >
I used to use WICC as a test for a good radio in the daytime. It is
closer to Westport than I am in the Northeast of CT, while Westport andto
Naugatuck [WICC] are in the Southwest part of the state. Since you used
live in the area, I'll mention some call letters next time.mute
Maybe I need some help understanding exactly what the dreaded soft
sounds like. Is it only a problem when tuned one or two Kc. off? Or isit
the mute which happens before you couple an external loop, and you haveto
change frequency, and come back after the loop is in place? Maybesomething
else entirely? - FARMERIKwrote:
--- In ultralightdx@ yahoogroups. com, Richard Berler <lrdheat@ >
signals (the dreaded soft mute).
Also, check to see if there is a pumping on marginal-weak daytime
get WBZ and WPRO during the daytime, and to get WCAU, KYW, and
I used to live in Westport, CT. From there, I needed a good radio to
from Philly.for 9
ÃƒÆ'Ã¢â‚¬Å¡Ãƒâ€š > Streets of Laredo, TX!
--- On Fri, 1/1/10, farmerik <farmerik@ .> wrote:
From: farmerik <farmerik@ .> > Subject: [ultralightdx] Re: G8 vs CR-1100 preliminary AM BCB
> > Date: Friday, January 1, 2010, 7:21 PM
To: ultralightdx@ yahoogroups. com
I'll see what I can do. I usually don't listen in the daytime.-
--- In ultralightdx@ yahoogroups. com, Richard Berler <lrdheat@ >
Happy New Year!
Can you do some mid-day testing, and post your observations?
--- On Thu, 12/31/09, farmerik <farmerik@ .> wrote:
From: farmerik <farmerik@ .>
Subject: [ultralightdx] G8 vs CR-1100 preliminary AM BCB
> > >
To: ultralightdx@ yahoogroups. com
Date: Thursday, December 31, 2009, 11:31 PM
> > >
got my CR-1100 today. Both have the same DSP chip I believe. The CR only
I've had the G8 for a couple months, since joining here, but just
tunes in 10 Kc. steps on the AM BCB, but I believe it can be programed
Kc. steps too.[You can not 'slope tune' it off a Kc. or two to escape andifferent
adjacent much stronger station.]
and the G8 is listed as 1mv/M. The CR-1100 is not really so much
The CR-1100 is rated by Tecsun at 0.5mv/M with its larger ferrite
than a modified DSP ULR with larger ferrite, but I don't think itqualifies
running both on good alkaline batteries. I tuned three ten 'channel'
I placed the two radios side by side, facing the same direction,
700-790, 1000-1090 and 1500-1590, and took notes on each station Iheard.
I'll summarize here. The CR is noticeably better on about 50% of thegot stations
frequencies, and about 1/3rd of those are substantial improvements. I
on all but 6 of the 30 frequencies on both radios, so it is a good nightwider,
here in Connecticut.
> > > As expected, the audio bandwidth on the CR sounds noticeably
but what I didn't expect is that when ever there is back round noise, ora
second weak station is also heard, it is much quieter on the CR. Iexpected
wider selectivity to hear more noise and other stations not less. Thescrolled
narrower G8 bandwidth seems to hurt, NOT help with interference.
Also, I looked at the meters for dBa and s/n. Both numbers
all the time on strong and weak stations. The CR had +5 to +10 moreunits
on the dBu scale on average, and sometimes the differences were muchwhat to
greater. The G8 ran +10 to +15 units on the s/n read out. I don't know
make of that, but probably they are not 'calibrated' or 'standardized' ,so it
does not mean a thing. If anyone can explain it, I'm all ears.can
I tried the TERK with both radios, and as before with the G8, it
lower back round noise,but it does not seem to ever dig a weak stationout
of noise like it does on a cheap portable.(mailto:ultralightdx@...) ?subject=Re: G8 vs CR-1100 preliminary AM BCB report-FARMERIK)
> > -FARMERIK
_Reply to sender_ (mailto:farmerik@ _Reply to s _Reply to sender_
preliminary AM BCB report-FARMERIK) | _Reply to group_
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