The COSHIP CDVB 3188C is a digital Free To Air (FTA) receiver. It is a
receiver with a remarkable difference and what a difference indeed.
How is it different? It can Auto Search very quickly in minutes, not hours,
days etc. a whole satellite WITHOUT the need to enter any data whatsoever.
He's talking rubbish I hear you cry, but I can assure you I most certainly
am
not.
If you are a CAMs and Cards man then this receiver is not for you.
The nearly perfect Dxing receiver has arrived.
Where so many manufacturers have made so many excuses for not producing a
decent Dxing receiver; "Too expensive to manufacture", "The technology is
not there yet and won't be for some foreseeable future", " Be too complex
to manufacture" to "There will be no call for it", etc, etc.
Well at last it has been done by a Chinese Company from Shenzhen, and believe
it or not for under £100 retail. $138 US Dollars to be precise, around
£90
Sterling.
I ordered mine from a US based company called Sadoun Satellite Sales of
Columbus, Ohio. The 5 day postage cost me $80 US Dollars, nearly as much as
the
receiver, but the receiver arrived at my house some 36 hours after leaving
Ohio. At the moment they are not sold in the UK.
Taking the receiver out of its excellent transit packaging it looks remarkably
normal. Just the usual silver coloured box with a few buttons on the front.
So what makes this receiver so very different to any other? It is its
capability of being able to search a given frequency range of the KU Band or
C
Band spectrum, both horizontally and vertically, or a set of parameters of your
choosing without the prior entry of any transponder data whatsoever. Just that,
and it will find all active transponders with their associated channels, both
radio and TV. It will also send these channels to your TV set as good as a
receiver costing four times as much.
I set the receiver up at first to what I thought would be its ultimate test,
and that was to search the 13 East slot (Hotbirds) from 10.700GHz to 12.750GHz
in both Horizontal and Vertical Planes.
Before I talk about the results a little about the receiver itself.
The first thing I noticed on the rear is the lack of Scart sockets. There are
just four phono sockets, 1 video out (CVBS to TV), Audio Left and Right, and
an
accessory voltage socket 0/12 volt switch, but sitting beside this cluster of
four is an S-VHS socket.
The 0/12 volt switching facility comes in handy for switching those
electronically controlled antenna switches. Useful when using both C Band and
KU Band signal sources.
Also obvious by its complete absence is a UHF loop through, so if you rely
solely on UHF for your receiver to TV link up, you will have to purchase a
device to carry out this function.
However the Coship CDVB 3188 C does have an IF loop through, so that another
receiver can be added.
The mains lead input is clearly marked as functioning from 100 Volts to 240
Volts at either 50/60 Hertz AC. The maximum power consumption of this receiver
is rated at under 30 Watts. Power consumption is therefore minimal to that of
the Echostar 3000/3600 series.
One sad point with this receiver it has only DiSeQc 1 installed, so you will
need another add on box if you wish the receiver to move your dish.
Very usefully on the rear is an on off AC main switch. This is pretty vital
for nearly all digital receivers as so many of them do "Lock" every
so often,
and the only way to get them going again is to switch the receiver off and then
back on again.
Last and certainly not least there is an RS 232 port. This port can be used
for upgrading the software via a computer, or you can connect a similar
receiver to the point by cable and transfer data between receivers.
Turning the receiver so that the face can be viewed you will see 6 buttons.
From these buttons the receiver can be completely controlled without the need
of the remote control unit (RCU). Also on the right hand side there is a flip
up cover under which are CAM socket openings, not used in this receiver.
After connecting the IF lead (lead from LNB) and connecting up the Audio
Visual (AV) leads to your TV, amplifier or SCART switching unit, the receiver
can be safely switched on.
On switching the receiver on and whilst in use, a signal lock lamp indicates
the presence of "signal lock", there is also a signal strength indicator,
a
remote sensor lamp that flashes as the receiver receives commands from the RCU,
and finally, a four digit display that both indicates the status of the receiver
and also the switched channel number.
The remote control unit is pretty dull affair, not really ergonomically
designed but is highly functional with some 27 buttons for you to press.
To get things going, switch the receiver to working from standby and then
depress the Menu Button. The screen lights up with "System Main Menu".
The first item on the list is Antenna setting. On pressing the OK Button,
(Which is below the four "arrow buttons", instead of being on a sensible
remote, in the middle of the four arrow buttons) you get two options. "Install
Antenna", which allows you to set the system to the LNB you are using and
use
the receiver in the conventional sense by adding the transponder data manually.
The second choice is "Blind Scan Antenna".
Blind scan antenna is the gateway to the magic of this receiver, this allows
you to set the receiver to search any set of parameters you wish to enter in
either 4MHz steps, or even below 4Mhz steps.
The next item on the System Main Menu is "Transponder Setting". Here
as with
other receivers you can add a TP, Delete a TP, Modify a TP, and search an
individual TP. Transponders can only be added when they are active. It is just
a case of entering the frequency and polarity; suddenly the Symbol Rate pops
up
in the SR window.
Moving down to the next, "Channel Setting", at this position you
can Edit, Add
a new channel, delete, Move or Lock your settings, and finally annotate
favourite settings.
Next is "System Setting". Here you can set your chosen language as
well as set
the System Lock. Unfortunately the only language available on the one I tried
was English.
Moving on down there is Password Setting, if and when you require it.
Below that is "Factory Default", that magic position where you can
so easily
loose all your hard found gains. However I can see this being used quite often
by the avid Dxer.
Last but not least is the term Accessory. Oddly this does nothing as the
accessory switch can be set elsewhere in the menu during set up.
Really not very much different to many other receivers, but this menu is
self-explanatory and is very simple to use.
I have briefly covered searching earlier on, I will now expand upon it.
The receiver will search in three ways.
The first is searching the pre-programmed TPs that are set in the receiver
software at the time of buying. As this receiver has come to me via the USA
I
could not find a satellite to test this upon.
The second is a "Blind Search" which searches every 4Mhz without
the need to
enter any data whatsoever.
.
The third is a comprehensive search with a gap of less than 4 Mhz.
Surprisingly this does work very well and a search in this mode often produces
more TPs than when in the 4MHz mode.
A real first exists in the second and third modes of auto searching and that
is you can rush the search over the parts of the frequency spectrum on a
satellite that are not used, just by simply pressing the OK button and
releasing when appropriate.
I will use W 1 as an example at 10 East as it appears to be a "Feed"
favourite. W1 uses 10.950GHz H & V to 11.200GHz and 11.450GHz to 11.700
GHz H &
V, so by pressing the OK button you can scoot it through the 11.200GHz to
11.450GHz portions when the receiver is searching the Horizontal and Vertical
Plane. Thus reducing search time when looking for those active feeds. Likewise
the non used gap between 11.700GHz & 12.500GHz both H & V.
Now lets get down to finding those channels
After setting the receiver up, I moved my dish using my Echostar AD 3000 IP
Viaccess to the Hotbirds at 13 East. I switched on the Coship and pressed menu,
the cursor fell on "Antenna Setting", depressed OK, arrowed down to
"Blind
Search", and pressed OK, here I was given a choice of either User Sat C
band,
or User Sat-Ku. Being I wanted the receiver to search Hotbird I chose the KU
setting by moving the arrow down to it. After pressing OK the receiver gives
you an option setting window.
Here you set the search parameters. I set the full parameters for Hotbird;
search from 10.700GHz to 12.750GHz in both Vertical and Horizontal Polar
ranges. Pressed OK and the search began.
OK. the receiver took 66 minutes (1Hr and 6 Minutes) to search the complete
set
of Hotbirds but it returned 86 Transponders, carrying 760 TV channels and 614
Radio Channels. All without wearing my fingers to the bone on an RCU.
I next searched Turksat 1C at 42 East. To us in the UK with a 1.2 metre
antenna we can only see the vertical Transponders. The receiver searched
Turksat !c complete in less than 10 Minutes. It returned 14 TPs active 23 TV
channels and 23 Radio Channels. The reason for searching this bird was because
here you can find some rather odd symbol rates in use.
Whilst talking about Symbol Rates (SR), the manufacturer claims a symbol rate
error of only .15 of a percent when reporting searched parameters. These
results are far better than those attained by both the Nokia and the RSD/New
Wave receivers. The receiver handles symbol rates between 2.000 an 45.000Mbits.
Later when searching Telstar 12 at 15 West I discovered that the receiver will
see symbol rates below 2.000Mbits but will not download them. Also whilst
searching W 2 at 16 east I discovered that the receiver will record the
presence of data channels, even though they do not have a TV/Radio component.
Once a Satellite has been downloaded, the received data can be analysed in
two
different ways. The ones of interest to the DXer are the TP lists, where the
Frequency, SR, and Polarity are shown, but sadly not the Forward Error
Correction (FEC). The TP list can be accessed via the TP part of the menu. Many
receivers now are setting the FEC at Auto.
I don't think this will upset the serious DXer because he gets a feel from
experience of the correct SR. Anyway most have another receiver where the data
can be transferred to discover the correct SR.
FECs covered by the receiver are 1/2, 2/3, 3/4, 5/6, and 7/8.
To find out the parameters of a downloaded channel, simply call up the channel
you wish to query and press the "Info" button on the RCU. Here displayed
are
the Frequency, SR, Polarity, Two Audio PIDs, Video PID, PCR (Clock) PID and
if
Teletext is present , the TeleText PID and the Channel Name.
The receiver is very easy to set up from the black and white user's manual.
Although Chinese interpretation of English is present throughout, the User
Manual is well laid out and easy to understand.
This receiver is less complicated in its operation than the, now ancient in
satellite terms, Nokias with DVB 2000 installed. It must be remembered that
when the Nokia 9200, 9500, and 9600 came on the market, they were rendered
pretty useless very quickly by the advent of multitudes of channels. If it had
not been for a very clever German computer programmer and his writing of the
DVB 2000 software for this series of Nokias, most would have been in the
dustbin or on Museum shelves. Sadly the Nokias in their Auto Search form are
no
longer made. Their search capability without a computer is however limited to
a
very narrow bandwidth compared with this receiver.
The RSD ODMs 300 and 302 again no longer made, but the 302 metamorphosed into
the New Wave 9000. The Coship as a Dxing receiver knocks this into a cocked
hat.
I can hear the purists shouting the Nokias will give you this and that, but
where this receiver is coming from, is that it here today. Also spare a thought
just how good it could be tomorrow.
So Far I have eulogised over this receiver as a craggy old DXer might. One
might ask is "What good is this to the FTA entertainment watcher?"
It is quite simple. If the FTA entertainment user goes to the satellites where
the entertainment is, he can download everything that is active without
referring to magazines, websites etc. He will not only pick up the things that
are ongoing, but also anything that has freshly arrived recently. If the user
sets up a regular check system, then they will always be up to date.
Now everything has been set up correctly and channels downloaded, how does
the
receiver behave?
The video level and colour saturation are very good indeed and I feel the
audio is also of a reasonably high standard. Channel change is about 1 second.
Should we say once more that what you get for your money is truly a bargain
to say the very least.
I have aired the pros up to now and a few of the shortcomings.
At present the capacity of the receiver is only 2000 channels (radio and TV
combined) With today's channel loading that is not very much storage at all.
Another limiting factor is that the receiver is only capable of storing 18
Satellites. No FEC reading, auto only. The threshold is not as good as that
of
the Nokias.
To summarise I would say that this receiver does virtually what every DXer
has
dreamed of for ages, and it does it without a computer or any other hardware.
Coship has attained what others called "unattainable".
As a first it is truly brilliant. A no frills thrill.
All we need now is this technology incorporated with the Dream Box, add 4.2.2
and huge capacity hard disk and we would all be in satellite UTOPIA.
System
Capabilities
|
Fully
DVB-S compliant
|
Tuner
Input Connector
|
2
x F - Type Female
|
Input
Level
|
-65~
.25dBm
|
Demodulation
|
QPSK
|
Symbol
Rate
|
2
~ 45Ms/s
|
FEC
decoder Rate
|
1/2
2/3 3/4 5/6 7/8
|
Reed
Solomon
|
(204,
188, 8)
|
LNB
Power
|
13/18V/Off,
400mA: Current overload Protection.
|
Tone
Switch
|
22KHz
|
DISEqC
control
|
Version
1.0 compatible
|
Video
Decoder
|
MPEG-2 Main Profile @ Main Level:ISO/IEC 13818
|
Impedance
|
75
Ohms
|
Aspect
Ratio
|
4:3,
16:9
|
Output
Level
|
1.0
Vp-p
|
Audio
Decoder
|
MPEG-1
layer 1, 11
ISO/IEC
11172-3
|
Impedance
|
600
Ohms
|
Power
Supply Input Voltage
|
100-240V
~
50/60Hz
|
Nominal
Power Consumption
|
30W
Max
|
Safety
Insulation Resistance
|
More
than 10M:, at 500Vdc
|
Withstand
Voltage i/p to o/p:
|
3kV91
min
|
General
Dimensions
|
360
x 65 x 275mm
|
Roy Carman
This report is copyright covered and may not be reproduced in Part or Whole, or
placed in a retrieval system without permission of the author.
Copyright..Tempus Fugit Publications.