Here is some preliminary information from Ueda Radio Ltd. on the newly-announced Icom
The basic specifications have already been announced on
the website of ICOM; here is a summary. The first part is an interior shot of the IC-7000. How is it? It has become substantially
simpler, as compared to the IC-706 MK II G of the preceding generation. When
one compares the IC-7000 to the product of over ten years ago, one
will observe immense technological progress.
Click photos for larger images
Note the efficient muffin fan, which exhausts heated air from the
This photo shows the underside of the chassis. It is very simple.
Here is some more preliminary information from Ueda Radio
Ltd. on the newly-announced Icom
Now, let us take a quick look at some screen images.
This is the start-up image, which is similar
to that of the IC-756Pro series. It changes to the
operational image in approximately 3 - 4 seconds.
The radio is in a state where the band scope is turned to ON. When
one compares this to the IC-756Pro series, is the scope activity a little
more sluggish perhaps? When the band scope is turned on, it has become
a slight matter of concern that a "tap-tap" sound is heard and the
received audio is interrupted (due to the
scope sampling process). We observed this phenomenon in a
prototype unit displayed at Ham Fair. This must be how the IC-7000
works, even in the production version.
This picture shows the PA temperature indicator. I believe it is an
This is the HM-151 microphone (with control keys) for the IC-7000.
With this microphone, the user will be able to control IC-7000
functions to some extent.
The above is abbreviated preliminary IC-7000 information. Due to the
short time we had to collect data, we have only been able to present
a partial picture.
We should have more complete information by the end of September
It was worth the wait! The first IC-7000 100W radio has arrived
today (14 Sept. 2005). Initial stock is limited to one unit. By all
means, please come to our [Ueda Musen] store; we will offer a special
Here you can see the received television picture on the screen of
the new ICOM IC-7000. The antenna which is being used to receive the
TV signal is the DIAMOND ANTENNA D-130 Discone Antenna, and the TV
image is an NHK educational broadcast. One limited batch of
IC-7000's arrived at the store, and sold out completely. The next
shipment is expected at the end of this month.
This is the third announcement of
preliminary information from Ueda Radio Ltd. on the newly-announced IC-7000 radio. This
time, we have information about a receive Coverage enhancement. This
increases the receive coverage to 30 kHz ~ 199.999 MHz and 400 ~ 470
MHz. Icom will offer the receive frequency coverage update free of
charge to customers purchasing the radio.
The next shipment of IC-7000's is scheduled to arrive at our store
by the end of September 2005. This is fresh new product information
as of 2005/09/21!
As we have anticipated for a long time on this blog, the
ICOM IC-7000 will be
arriving in quantity tomorrow, 10/1/2005. It was worth the wait.
(*Photo of IC-7000)
Please come to the store and pick one up!
Here is a regular information update from Ueda Radio Ltd.
The demo model of the new Icom IC-7000 product has arrived, and was
worth waiting for. We are planning to display it for a while in the
Ueda Radio store. Please stop by at our store this weekend.
We have made arrangements to stock the IC-7000.
*IC-7000 demo model
Additional IC-7000 Versions: The IC-7000M (50W rig) and IC-7000S
(20W rig) will probably be on sale before the end of this year.
Look what our sources located - a really
The IC-7000 received
FCC certification on November 15, 2005.
FCC ID: AFJ242700.
If you "slide" the manual notch filter (MNF) right up to one flank of
the IF bandpass filter, it will tend to sharpen up that flank. Now
if you place one of the IC-7000's dual MNF's close to each flank of the
bandpass filter, it will improve
its shape factor.
If you position an MNF on each side of a weak CW
signal, you are constructing an incredibly narrow DSP bandpass filter. By
moving the 2 MNF's around, you can optimise the filter for the best
rejection/ringing or noise bandwidth/ringing trade-off.
The directions given in the instruction manual regarding
the setting of the compression threshold are incorrect. On page
88 of the USA released Instruction Manual, the instructions state:
"NOTE: When the ALC meter peaks
below the ALC zone, your transmitted voice may be distorted. Adjust
'COMP LEVEL' so that the ALC meter peaks above the ALC zone." This
is precisely the opposite of how the levels should be set!
(Contributed by Paul Marbourg, WN7T)
In SSB mode, set 'COMP LEVEL' for approx.
6 dB compression
on voice peaks.
Although there is no VSWR indication on the 2m or 70cm
bands, the VHF and UHF PA stages are still mismatch-protected.
Reflectometers in the VHF and UHF PA output lines will
protect the PA devices in the event of a mismatch. L410, D401
and D404 in the UHF PA, and L502, D501 and D504 in the VHF PA
respectively, constitute simple reflectometers. (Refer to
partial schematics above.)
To quote the IC-7000 service manual (p. 3-7): The VHF/UHF APC detector circuits (PA unit; D501, D504, D401, D404) detect
the forward and reflection signals and convert into DC voltages.
The converted DC voltages are combined and applied to the ALC
amplifier (pins 1, 2) as "VUFOR" voltage.
Thus, it will be seen that even though the IC-7000 VSWR indicator does
not operate on the 2m and 70cm bands, the VHF and UHF PA's are
nonetheless protected. A sudden drop in Po will
indicate a high VSWR condition.
IC-7000 Transmitter Driver Schematic
It has been observed that the IC-7000's transmit standing current
is approx. 4A in SSB mode, without audio input. Users have also
reported that the radio runs "quite warm".
The TX driver stage, Q504 (DRIVER Unit), is a single-ended
operating in Class A with Vdd = 13.8V (nom.) The
driver alignment procedure (IC-7000 Service Manual, Sec. 4-4)
specifies 1A driver standing current. If we assume that the HF/6m PA stage has 15dB power gain, Q504 must deliver
100W output. As the efficiency of a class A amplifier is
approx. 20%, the DC input to this stage will be about 15W
whenever the transmitter is keyed. This equates to 1.1A at 13.8V - about
25% of the 4A standing current noted above. In
addition, Q504 will dissipate approx. 15W without drive - a
contribution to the radio's thermal budget.
(Note: A single-ended driver was selected in the interests of
circuit simplicity and PCB real-estate conservation. The
advantage of this topology is that a single driver stage can be
common to HF, 6m, 2m and 70cm. As this stage is broadbanded, it must be
operated in Class A to ensure adequate harmonic suppression. The
Class-A amplifier is inefficient, as its conduction angle is 360º.
It will therefore draw significantly more DC input current for a given RF output
than a Class-AB amplifier. In contrast to Class AB, the Class-A
amplifier will also dissipate 100% of its DC input power when not
The IC-7000 is not the optimum choice for manpack service. Its standing
current consumption on receive/standby is 1.3A (vs. 0.3A for the
IC-703). I would estimate
that it draws approx. 8A at 5W output, and 11A at 10W output. The TX
driver stage is Class A, and dissipates at least 15W key-down with
or without drive.
You will need a battery-wallah to wheel a trolley-acc behind you
whilst you are trudging through the wilds with your radio on your
back (or at least a very large dog by your side, with battery-laden
saddlebags over his back.) The advantage of a human (as opposed to a
canine) assistant is that he can also brew you a cuppa during breaks or
poor prop! In addition, a human can work the pedal-generator when the
battery gets low.
During WW2, the battery-wallah was always recognisable as the
member of a 3-man Royal Signals infantry radio team who had the
acid-burn holes in his trouser-cuffs.
All information on this page through October 2005 courtesy
Musen Staff Voice.
Copyright © 2005 Ueda Musen K.K.
(Ueda Radio Ltd.)
Translation and page creation by A. Farson VA7OJ/AB4OJ.
Japan IC-7000 Page.
Read my IC-7000 Evaluation Trip Report
Click 'details for the ic7000'
on the Heil Sound website.
Visit Lidio, IØGEJ's Weblog,
including IC-7000 information.
DL4MD: IC-7000-Testbericht auf
IC-7000 Review by Phil Salas AD5X
View a large picture of
the IC-7000 (image courtesy Icom UK).
View a video of the
W8LX DSP IF Filter Test, by Scott N7SS.
(Mirror for video)
article on the IC-7000 IF-DSP.
View a selection of IC-7000
screenshots (courtesy Icom America)
the IC-7000 TVRO/Mars Mod.
files from the Yahoo! IC-7000 Group (membership required!)
New Trends in Front End & LO Design
IC-7000 "Hidden Menu"?
Scott, N7SS' IC-7000 X-Ray Views
Scott, N7SS' IC-7000
Frequently Asked Questions
Bob Nagy AB5N's IC-7000 Microphone
Page (with audio clips for various menu settings)
26 November, 2012.