*** DONATIONS *** DONATIONS *** (time to beg a bit) : As many of you already know we
moved this web page to QSL.NET back in early April of this year (2020).
Of course this was a HUGE improvement vs. when on the Angelfire that we
were forced to move back to when the Charter host went away (no more
stinky pop-ups or other nastiness here on QSL.NET). This took many hours of my time and
sweat to recode this entire page "again" along with adding content /
corrections which we always constantly do.
The QSL.NET host we are on now would like to receive (more like near
requires) a $ contribution once in awhile and I still REQUIRE a little
something for my time to write and to maintain this entire page (and
yes also provides motivation for me to continue). We have NOT been able to make any donations to QSL.NET
yet. We MUST start do that as soon as possible, so how about a bit
of support of a few US Dollars $ ? Does not have to be much (ALL
donations are appreciated even if only one or two US dollars sent direct
to me via postal mail). Paypal is possible and this way does not have
to be in US Dollars of course. We also base what I review on YOUR kind support, so with
no $ donations to purchase test samples (or donations of decent test receiver/amateur transceiver samples or related accessories) , no new reviews ! For donation
details please see the MAIN PAGE. THANK YOU for being a
loyal reader to "Dave's Radio Receiver Page".
We also must thank Scott Neader KA9FOX and the QSL.NET crew greatly for
allowing us to be here with our limited resources/funds. (Updated : Aug 08)
Sorry, but it's time to beg a bit. We need reader donations to continue to be here !
Have an extra $ 1. or $ 2. USD ? Please see the main page for details. THANK YOU for your continuing support !
PLANNED UPCOMING REVIEWS (subject to change) :
- Review of 3 "classic" Flash Audio Recorders (all being used for "off air radio" use) Edirol-Roland R-1 / Sony PCM-D50 / TASCAM DR-40.
- "Guest Review" of the FlexRadio 6400M HF Transceiver being used as a SWL receiver (now in process, mid-late September time frame ?).
- Our review of the HanRongDa HRD-1032 "ultra cheap" MW/FM/SW" pocket portable (see Todderbert's "You Tube" video here). These gems sell for around $ 11. USD on Amazon (and elsewhere). Uses cellophane taped on contact buttons to the PC board (hey...what do
you expect for $ 11.). Operate on 2 AA batteries (no weird lithium ion batteries here). Also sold under other names including
Vite. Uses the AKC6951 receiver/DSP IC (same as used in the V115, our review here).
***** N9EWO NEWS ITEM LINKS (most current on TOP of list below) *****
(Have anything to contribute here ? Please contact me at the email address on the top of this page.)
- Chinese Malachite (Malahit) SDR's : A very interesting FYI on the Chinese made pocket low cost SDR's based on the original Malahit Russian counterpart that
you cannot really purchase anywhere (well at least easily in the USA you sure can't).
R6DCY/R6DAN/RX9CIM Original "Russian" Version
(click on photo for larger view) (N9EWO photo edit)
We see 4
versions of these Chinese versions on ebay for sale as I type this
(what we call CHINESE VERSION FOUR below appears to be no longer available ?). No 2 are
the same. 200
MHz is the top coverage on all of these ? The auction listings loosely elude to some
password to increase coverage (purchase a license key, comes with basic Chinese firmware) ?? They have
no SD card support or built in
recording. Have only basic features, not even any memories (BAND mode
looks to allow for ONE preset memory for each band preset ?). But these
do have NR (noise reduction). Please Note : The 5 SDR's below all use USB C type power connector and any cable is NOT included (it's NOT B type Mini or Micro). If any readers see any new versions
lurking around or any other information with any of these, please let me know.
CHINESE VERSION ONE : This version is currently selling for around $ 160. via ebay. NOTE : A number of vendors are still selling this older version as I type this. Rev numbers that we see of this SDR include (as marked on the front panel): 2.1, 3.92 and 3.97 (3.99). Pictures you see in the ebay ads of THIS version show the
use of internal shielding (but sadly they do NOT have these shields in actual production units
!). Case is made out of fiberglass PC board material (our thanks to
Brett N2DTS for the update on this). The thumbwheel encoders look to be
"not so hot" idea , but I guess work OK. Has a internal Lithium Ion
battery, TINY internal speaker and micro small POWER slide switch. In any event it
does indeed look very interesting even with it's ultra cheesy case and
Chinese version what we call VERSION ONE. (click on photo for larger view) (N9EWO photo edit)CHINESE VERSION THREE : This approx. $ 100. version has NO case, NO knobs, NO speaker or battery (ebay example click here).
It's 2 rotary encoders are closely spaced together (are not using thumb
wheels on this version).
It's SMA antenna connector comes out of the top vs. the other 2 that
are on the left side. Admittedly this versions PC Board looks to have
the most parts on it (viewing ebay photos), however it has
no mounting holes.
CHINESE VERSION TWO (NEW as of Late July 2020) : These versions are selling for around $ 160. on ebay as we type this (so a few more $'s) .
Thinner size (similar to VERSION FOUR BELOW), antenna jack on TOP and
headphone jack now is on the LEFT side (that is a bit confusing as you
study the NEW photos of this one). They show the size comparisons in
the ebay link above of the old and new version (but is very confusing). My
feeling is the thicker case versions might be more desirable if one
does not plan to use it portable so much (as a home device is bit too thin for that) ? Rev on this one is marked as B.0.
NEW Chinese version (late July 2020) what we call VERSION TWO. (click on photo for larger view) (N9EWO photo edit)
Chinese VERSION THREE (click on photo for larger view) (N9EWO photo edit)
CHINESE VERSION FOUR (No longer sold ? See VERSION TWO above.) : This currently not available approx. $ 160. version has a large annoying green LED on the front.
However the USB port is more properly located on the left side away
from the thumbwheel controls as is the headphone jack. Again is unavailable as I type this and
by viewing the internal pictures appears to have less parts than the OLD "VERSION ONE" I link above (click here to see expired
ebay listing) ? Entire case here again is made out of PC Board material.
You Tube Video (VERSION FOUR) : MALACHITE SDR RECEIVER
Chinese VERSION FOUR that appears to be no longer sold (click on photo for larger view) (N9EWO photo edit)
POSSIBLE N9EWO REVIEW ? : IF I'm able to obtain one of these as a reader donation I
will do a expanded review. Any donated test sample must
be sent "postpaid" to my USA mailing address (my QRZ mailing address is valid) OR enough donated funds to
outright purchase which we are extremely far away from at this time. Would prefer the above marked VERSION FIVE so we can check out the subwoofer speaker but any other version would be fine. Please see the main page for more information on donations to me.
also welcome reader "guest reviews" with any of these. Sorry, I no
longer write receiver reviews with loaner units as I now require proper
compensation for my hard work and time to compile and write these
reports. Thank You for your support and understanding (funds are even more
limited these days for me). (Updated : Aug 08)
CHINESE VERSION FIVE (New as of Aug 01, 2020) : Price around $ 150. as we type this entry, ebay link here (Aug 01). Appears
to be a variant of the VERSION 3 board but in a case with knobs AND a
subwoofer speaker with bottom rubber feet to boot. However has battery does not come with it
(perhaps the larger speaker and subwoofer made it impossible to squeeze
that into the cabinet ?), and the bottom speakers are totally
unprotected. One picture shows the tuning knob to be bigger than
the volume one, while another photo shows both being the same size (go
figure). Rev is marked as A.0.
Chinese VERSION FIVE
APPEARS to be the most desirable LOOKING one out of the bunch at this
time. Rotary knob encoders with the tuning knob being larger (maybe?).
Has a larger speaker with an additional subwoofer. However does NOT
include any internal battery. The one picture in operation shows it
with the Russian firmware installed ? (click on photo for larger view) (N9EWO photo edit)
- Audio is very good.
- Control is a little erratic but not bad (touch screen).
- Designed for a whip antenna, too much gain on a full size antenna, preamp off, rf gain to 0 and its ok.
- Filters are good, adjustable, but really strong off frequency stuff tears it up somewhat.
- Has a built in speaker, not loud.
- Has a built in battery, seems to last a long time, its been running 3 hours and still shows a full charge.
- Goes up to 200 MHz.
- cw, am, fm narrow, fm wide, lsb, usb modes.
- $150.00, one without a battery is $100.00.
- Has a usb (c) port, may work with some software or be able to be updated in the future.
".....I had to dial in a 10db attenuator before the antenna input to
avoid overload on 40 meters, then it worked great. RF gain at 0, and a
5 to 10 db attenuator makes it work ok on a full size antenna. It does
not have the same software as the actual Russian radios, it operates a
bit differently and has some things missing. Push and hold the volume
knob to bring up the modes, no CW mode but lsb and usb can have the
filters to anything you want. Pushing the freq knob cycles through
built in speaker, headphone jack or both. The speaker is not very good,
but it IS there. You can not change the bandwidth displayed on the
waterfall/panadaptor and there are no filter display, or amplitude or
frequency markings on it. The touch screen is a bit erratic, but
overall the radio works OK with good audio....."
N2DTS "Malachite SDR Chinese Clone" report on eham Jul 17, 2020 / ver 3.97 (N2DTS Photo, click for larger view)
UPDATES (Aug 03) :
- Information via Russian forums (via Google Translator) about
these Chinese Machite's. They mention these Chinese-made devices. Appear that these ALL come with the limited
test firmware (but is most usable).
Seems that George RX9CIM sees no problem in other people building the HARDWARE. He
confirmed he sells the licenses to activate the firmware and open all
features. As we made comment to above with these Chinese versions and you go to the item listings on
eBay and the vendor makes comment the need of an activation license : " Frequency
range: 50KHz to 200MHz,
can up to 2GHz after purchase registration code from the officia ! For more
please go to the officia site !" (guess that means the Russian developers ?). Appears some have contacted
the Chinese sellers about the activation and reported that they
replied the codes would be provided with no additional information
details ($ 55. ?). Here are the schematics of the Russian version (PDF Format).
Also see here CQ HAM RU :
Also here on VK.COM :
ON FACEBOOK :
(Someone here made a comment that the cost of a license key was $ 55. USD ?)
- From RTL-SDR.COM : ".......this
SDR runs on the MSI001 tuner chip, which is the same tuner chip used in
the SDRplay line of units. However, unlike the SDRplay units which use
a wideband MSi2500 ADC, the Malachite-DSP uses an audio chip as the RF
ADC. This provides a 16-bit ADC, resulting in high dynamic range, but
at the expense of the available bandwidth which is only 160 kHz. A
STM32H743VIT6 with ARM Cortex A7 processor runs what appears to be
custom DSP and GUI software. The software doesn't seem to support DRM,
but AM, WFM, NFM, LSB, USB are all supported."
- Francesco IW1BFT from
reports to us with information on these Chinese SDR's.
He used all battery operation with his test samples as noted below, but
remember one MUST NOT use any switching type power supply OR connected to a computers USB port, otherwise one will get HF reception
loaded with RF garbage and Spuri junk. See my possible solution to this
issue below, but please note I have NOT tested this power supply with
one of these Chinese SDR's as I type this as we have no test sample to
do that with. (Note : VERSIONS listed below relate to my
reference version numbers as above.)
Key items from the Russian forum :
The receiver was developed with the
participation of: RX9CIM (idea, dsp, general circuit), R6DAN (gui and
control), R6DCY (clarification of the circuit, wiring, design,
additional board which adds additional HF bandpass filters) and dadigor - Igor Naumenko.
Key features (virgin Russian text via translation):
1) the radio is built on the principle of SDR - the functionality is determined by the loaded software;
2) the frequency range is from 50 kHz to 49.999 MHz, from 50.001 MHz to 249.999 MHz, from 400 MHz to 2 GHz;
3) all types of analog modulations: AM, SSB, NFM, WFM;
4) great functionality: variable
filter width, adaptive noise suppressor, threshold noise suppressor,
Noise Blanker, AGC, equalizer;
5) applied a cheap but functional chip msi001;
6) a powerful stm32h743 processor with a clock frequency of 480 MHz was applied;
7) the presence of a 3.5 inch IPS display with a touchscreen;
8) the presence of a built-in UHF;
9) controls - 2 encoders with buttons and a touchscreen, power button;
10) power from the built-in battery
and USB, charging from USB. The capacity of the built-in battery is not
less than 1500mA / h.
11) consumption - 300mA when listening to headphones;
12) reception on the built-in telescopic or external antenna. For
improved HF reception on a telescopic antenna, an additional board with
a source follower, filters and attenuator up to 30dB has been
The frequencies and characteristics of the filters:
- Low-pass filter 500kHz
- High-pass filter 4500kHz.
The board involves installation in a standard receiver design.
13) USB connection to a computer with the ability to transfer CAT, IQ and audio.
14) 160 kHz span with scalability;
15) sensitivity - 0.2-0.3 μV;
16) the dynamic clogging range is about 85dB, due to the characteristics of the msi001 chip used.
17) the aluminum case is applied;
18) there is a backlight control;
19) antenna socket type SMA;
20) receiver dimensions 120x88x39mm;
Appears that in the Chinese versions, without
activation with license key/fee, there will only be test firmware, which is quite a
receiver for itself, but it can’t do much and has a lot of differences
from firmware that requires activation. (NOTE : Keep in mind this list was
posted by the Russian developers, so appears to be a bit biased ? As we
made comment to above there are different REV's of the Chinese VERSION ONE floating
around. What that means as far as operation changes/differences go is unknown. Dave N9EWO) :
- the frequency range is limited
- there is no stereo FM reception
- there is no frequency error correction
- there is no usb connections
- a stick or hole in the middle of the spectrum
- there is no support for the shield with IP
- there is no normal gain control msi001, which will cause problems when working on large antennas
- the interface is inconvenient
- the brake interface is low FPS and a long reaction to the controls
- there is no normal choice of frequency tuning step
- there is no normal aru
- there is no frequency input function
- there is no function
- turn off the display to minimize interference
- high consumption in the off state - 10mA
- there are no visual settings for the spectrum and the waterfall - there were a lot of settings
- there are clicks during the adjustment
- there is no telegraph decoder
- the number of memory cells is less and there are not all settings are saved
- the interference from the display is much greater
the past I purchased an RSX RS928 and was very satisfied with it, so I
approached these receivers with curiosity. My friend and I took 2 of
VERSION ONE, with case and battery and one VERSION THREE (PC Board
only). The VERSION ONES were REV 3.97 (3.99 printed on PC Board). I
must tell you that we were both very disappointed. Both models
receive very badly, with a lot of digital noise and numerous spurii
signals. VERSION THREE seems to be doing a bit better but in both cases
they are valid only to receive the commercial FM . The VERSION ONE box
is made of printed circuit board fiberglass plates soldered together.
The front panel, if the screws are tightened, locks the knobs and there
are NO shields on the board. The speaker, then, is bad. The price is
absolutely not justified. Another friend owns the Russian model and
says it's okay, I haven't tried it. I made the comparison with a Belka
DSP, and there really are no words to describe the superiority of the
Belka. I don't know if we were unlucky and we ended up with two bad
samples (taken from 2 different ebay sellers, arrived in about 20 days)
or if they are all like that, but I certainly do NOT recommend to buy
these SDR's. An old sdrplay, first type (RSP1) is so much better."
- A RARE "5 Volt" CLEAN LINEAR USB Power Supply (for 117 VAC voltage)
Have covered this topic in the
past with other radios that use a USB socket for power. What to do
about the excessive RF noise that ALL switching AC adapters emit for
use with a HF receiver ? CCrane in California USA still has
available an excellent , RARE and fairly inexpensive ANALOG / LINEAR / REGULATED 5 V 900ma
USB power supply that provides enough “cool” and CLEAN current for
operation with receivers that use a 5 pin MINI USB socket (CCrane Item # CWTPLP, Model: SR0509U). Yes it has a good old power transformer and linear type regulator. If one is handy enough, can add four .01
disc ceramic capacitors across its internal 4 power rectifier diodes to
make it even cleaner (kills off diode hum for close indoor antennas,
see photo). We just soldered them across the top of each of the diodes.
But this is not a requirement of course AND DONE AT YOUR OWN RISK !!
Super RF quiet LINEAR 5 V AC Adapter with MINI USB connector (left). Sold by CCrane in the USA.
Possible downside is that the CCrane power
supply has a MINI USB output cable and IF you need a MICRO USB for a
receiver (like the Icom IC-R30 receiver) of course it will not work out of the box. Not to worry as we
located a nifty but very rare 3-foot (1 meter) Mini to Micro USB
converter cable that does the trick perfectly from YCSbasics also in California USA (Product ID: A5575Q Part Number: U2JH3-B). Having
a length of cable and not some adapter right at the radio helps to
relive stress off the receiver’s USB socket. Please Note : This patch
cable was out of stock at the time this text was being typed (do your
own internet searches for an alternative cable or adapter).
We cannot say if this power supply will work with the Malahit SDR
receivers above properly (and more importantly cool enough) ? If the current draw is
around 300ma as given in the ebay auction information.....then it will
be no problem. We have to wonder what the current requirement will be
when battery charging (figure on it being a bit more) ? The Malahit receivers above use a USB C type connector. You will need a USB MINI-B FEMALE to USB C MALE converter PLUG adapter with the CCrane supply above. Do your own internet searches (but here is a ebay one that should work / but untested by us). WARNING :
I was advised that the previous converter cable adapter via ebay I HAD listed here turned out to be a "scam" Chinese vendor. Link now removed here of course, and DO NOT order as you will be out the $'s and the cable never being sent. My apologies on this ! UPDATE : Here
is the ONLY other proper converter CABLE we could find, this one is available on
Amazon (was in stock at the time this entry was added, if no longer available then see the converter PLUG link above). (Updated : Aug 08)
- Alinco DX-R8T and Yaesu FT-450D - Discontinued ! : Alinco has been forced to cease production on the Japanese made DX-R8T
HF "Communications Receiver" because of a parts issue. Of course a MAJOR blow for anyone looking for
NEW “HF Only” tabletop. But as we all can understand with the decrease
of SW broadcast stations in this day and age (+ SDR’s) why the desire
went away a good many years ago for HF only coverage tabletop
manufacturing. But was excellent to see Alinco hanging in there as long
as they could. So the last "HF only" coverage desktop communications receiver has left the marketplace ! The "end of an era" ! A few NEW samples may
still be had, but is not many. I know the DX-R8T used a couple of metal case 11
element murata ceramic filters that have not been manufactured in many
years. UPDATE : Palstar MAY have a few remaining samples of the R30A left ? But who would pay $ 900. USD for that receiver is beyond me ? See my Palstar R30 review here (non A version tested).
Alinco DX-R8T has been discontinued ! "End of an Era"
The last HF only coverage tabletop "Communications Receiver" is now history. (Universal Radio Photo)
Also Yaesu has been forced to discontinue the long running FT-450D HF transceiver due to parts availability issues. You can see my full review here
(more as a SWL receiver). Works fine as amateur radio transceiver, but
as a SWL set...forget it ! One MAJOR bug-a-boo is it's fan that
operates full time even in dead cold receive mode (that is totally
unacceptable in our view). Another is it somewhat annoying hissy audio and poky MAIN knob tuning steps.
However unlike the Alinco DX-R8T there are a few new samples still to be had in the USA as this was being typed.
(Updated : Aug 04)
LAST CALL : Yaesu's FT-450D has also been discontinued .
See our SWL review here (or click on above photo). (N9EWO photo)
Jon Wienke's comments from the RR
forum and his "You Tube Video" links. Uniden should be ashamed
manufacturing TOTAL garbage like this !!
"One thing I'd like to point out:
even though all of the non-repaired joints in the video were defective,
they didn't LOOK defective, even under magnification, and they still
connected electrically. The radio functioned correctly when I received
it. It wasn't until I probed the joints with a fine-tip dental pick
that they were shown to be bad. So I can understand why Uniden didn't
catch the problem when they had the radio, but I can also understand
why some people have having recurring issues involving the radio going
to Uniden multiple times. I wasn't able to figure the problem out
myself, until I got the microscope so I could see what i was doing, and
thought of the dental pick test."
"You Tube" Video's
- Uniden SDS100 Cold Solder Joint Symptoms
- How To Find A Bad Solder Joint on the SDS100 J401 Connector (Cold Solder Joint Problem)
- SDS100 J104 Before Repair
- SDS100 J104 After Repair
- JRC NRD-525 Important Serial Number Information (as now provided on the "Tips" page).
If you are looking at a used Japan Radio Co. (JRC) NRD-525
Communication Receiver, here is very important serial number data to
keep in mind. (sorry....the internal NRD-525 EPROM Firmware is not easily or is possible to be updated). Also added on this page is a GRE Tabletop Receiver list. (Updated : Jul 02)
JRC NRD-525 "Serial Number" History
- BR36471 (and above) SSB offset selection added.
- BR36771 (and above) The tuning rate of the main tuning knob and the step increment of the UP and DOWN switches can be changed by hitting the RUN
button. Selects the desperately needed 2 tuning knob speeds
between 10 Hz or 100 Hz steps. The UP / DOWN slewing buttons toggle
between 20 kHz and 10 kHz. Early samples only have a single VERY POKY
and extremely frustrating 10 Hz tuning knob step.
- BR38301 (and above) The last important firmware update JRC did with the NRD-525.
If you are looking at a used Japan Radio Co. (JRC) NRD-525
here is very important serial number data to
keep in mind (above). (Universal Radio Photo)
- "Icom IC-R8600" N9EWO
Information / Finding Older Firmware Versions on Icom Japan web site : Our "version
12.4" ICOM IC-R8600 "Wide Band" Receiver Review (click here).
Includes testing of the SP-39AD Power
Supply / External Speaker and added mode information including NXDN
stuff (also 1.34 firmware updates). PDF version (link) for our improved
spectrum scope adjustments restored (near bottom of it's page). (Updated
: Jun 12, 2020)
MAC Address item is added in the Set
•The File Split function that can record
the received audio, depending on the squelch open or closed status, is
•The Noise Reduction function is improved.
•Fixed an issue where the RX audio level
may change when the bass level is increased.
We have tested the
latest v1.34 firmware, some major
performance changes we noted (see light blue block below) :
IMPORTANT UPDATE :
After additional testing 1.34 firmware audio distortion is NOT as good
as 1.32. We say stay with 1.32 if you want the lowest audio distortion.
If the AGC Audio Swamping bothers you and desire better NR performance
(noise reduction) then use the new 1.34. Many may never
hear this distortion depending on the external speaker used ! Remember
use 2 way speakers with our IC-R8600 (see review text) !
IC-R8600 TESTING with FIRMWARE 1.34 (April 19, 2019)
improved in a number of area’s. Some of the fixes were undocumented in
the 1.34 update notes.
- First the NR (noise reduction) has been improved. Going above
#2 setting sounds no more like“R2D2”. NR is now a useful feature
whereas before it was a utter disappointment. It now operates similar
to the IC-7300’s NR performance.
- The “AGC swamping bug“(that I call it) issue when tuning across
super strong signals or strong static bursts has now been fixed with
1.34. Excellent news here and appears to have also improved weak signal
Only downside is while zipping through mediumwave and shortwave MEMORY
CHANNELS or VFO, we now hear a disconcerting “pop” sometimes when we
land on a active strong channel ,(this is quite annoying after awhile
to our ears, it may not bother YOU).IMPORTANT : The
SYNC (S-AM) MUST be ON in order for this bug to be detected !
- I detect a slight added Bass kick with broadcast stations that
have it (most noticed on the FM Broadcast band) with our classic
Realistic Minimus 77 speaker. Yes we do indeed set the “Bass” tone
setting up to maximum (+ 15) on AM/FM and SSB modes.
- After extensive testing, HF audio distortion while slightly
better than 1.33, was still the best with 1.32. So if you want the
lowest audio distortion on the HF bands..we say go with 1.32
even with the AGC swamping still present (but see note above on access to this older version).
NOTE : These observations were made using SW Broadcasts, S-AM (U or L)
10 kHz (maximum) bandwidth with the "2 Way" Realistic Minimus 77 test
Icom IC-R8600 "Wish List" : Here again
is my firmware improvement list that we would like to see added (as
doubtful any of this will ever happen) :
- Provide a "second" VFO.
(Remote Encoder Knob)
operate with the IC-R8600 totally standalone (without ANY computer
connection as like with the IC-7610). I would understand an additional
interface box and or cable / accessory may be required for connection
to the receiver.
- Allow 1 Hz tuning steps with the
knob (now this is only accessible with direct keyboard entry or
computer / CI-V control). The IC-7300 HF transceiver can tune 1 Hz
steps with the tuning knob.
- Improve the
"Synchrophase" (Sync) Detector fading distortion performance.
Provide Wider Bandwidth Selections :
- Increase AM Mode bandwidth up to
12 kHz (or better yet 16 kHz). For MUCH improved audio with good band
Increase SSB Mode Bandwidths up to 6 kHz (or better yet 8 kHz). This
would improve manual ECSS audio by leaps and bounds.
Icom released v1.34 firmware for the
IC-R8600 receiver on Apr 19, 2019
We found it to be a mixed bag, see light blue block above. (N9EWO
- LOWE HF-250 Review
Available / NEW "LOWE HF Receivers" Groups.IO forum : Our Lowe HF-250 HF
Receiver Review available here. This
took some major work
everyone, enjoy. Review was made possible in part with help from
reader donations....."THANK YOU".
John KC0G has started a NEW "LOWE HF Receiver" Groups.io forum.
This supersedes the other "LOWE Receivers" Groups.io forum and the now
2 defunct Yahoo Groups ones (the first one of these I started back in
June 2005). John has taken the TWO "Yahoo Groups" archive messages and
condensed these into two HTML files. Also has now restored the extensive photo PDF archives. These are all readable once you are
subscribed. This indeed took many hours of HARD work to accomplish (thanks John). (Updated : May 21)
- Updated AOR AR-7030 Page : Updated the AOR AR7030 page
with what to look for in it's old age (new block added at the bottom of
the page). Also updated to the larger font size we now normally use
with new pages.(Updated : Apr 27)
- Updated Links Page : We have added new links and removed dead ones (but if you still see one please let me know). enjoy...(Apr 24)
One of the new links added (video) :
"Blondie In The Dough" Number 21 (October 1947) -
Check out 23:53 into this video (from the old 1940’s Blondie movie
series). Listen for the “What’s Shortwave daddy” ? (great
answer). Dagwood and his pirate radio station (watch the entire 69
- "Sangean ATS-909X" Review Restored : Our Sangean ATS-909X review has been restored and can be seen here.
NOTE : Test sample review was done with a earlier production unit
(before the P-01 firmware and other hardware changes). So comparisons
with a late sample may not be valid. If anyone wishes to DONATE a
UNMODIFIED test sample with the P-01 firmware we will fully retest it.
Downright poor near unacceptable broadcast audio MW and SW quality in
our view. (Apr 23)
Here is very interesting post AOR Japan
released on March 4th, 2020 (pasted below) : Too bad as it
appears the AR-DV10 will continue to be a non marketable radio product
just continues to flat out deny ANY of the AR-DV10's issues with
excessive drifting and other bugs as reported "en masse" elsewhere from actual
owners and personal friends (firmware updates not helping the cause) !
CAUTION REGARDING FAKE NEWS!"
"AOR Ltd. would like to raise your
attention regarding an alarming increase of fake news regarding its
products, circulating on radio related forums, social media groups such
as on Facebook, and on fake AOR websites."
"The most recent fake news claims
that a new AR-DV10 "MK2" version would be released this year. That is
totally false. As a general rule and for the sake of common sense, we
ask our dearest and honest customers never to trust rumours circulating
on Internet. The only sources of information to be trusted regarding
AOR products are www.aorja.com and the websites of our network of
official AOR distributors as listed on
AOR may call “Dave’s
Radio Receiver” page as one of the FAKE
websites they make comment to. This is one of the main
reasons why I started this web page in 1998 (archive page here) , was
with the nasty AOR AR7030 issues (my review and comments here).
The failure of the 2 front panel Bourns mechanical encoders in early
samples which AOR UK flat out denied was never an issue (but in reality
both failed in most of the early samples with only after mild use).
They “finally” switched to
Alps encoders with those 2 encoders after awhile. At least back in
those days AOR UK was very responsive to customers questions and
concerns (and fixing issues). From our own experiences of late AOR Ltd.
(Japan) no longer
replies to customer questions/concern emails much at all (if at all).
It also appears that Yaesu USA is no longer the distributor for
the excessively drifty AR-DV10. Message as posted on AOR USA web page.
But why anyone would purchase one of these dogs is beyond me ?
"NEWS UPDATE : 06-08-2020 (June 08, 2020) : We are happy to inform you that both variants of the
AR-DV10 (blocked and unblocked) are now being distributed through AOR
USA Inc. We are also accepting after support for all AR-DV10 that was purchased in the past within the United States."
TO AOR : AOR if you wish to DONATE
a AR-DV10 sample for a extended review, I will give it a TOTALLY fair and honest report here. Just as I
have done with the AOR AR-DV1 (review here)
and with the ICOM
IC-R30 (review here).
Please contact me at my email address at the top of this webpage (I'm
located in the USA) ! Sorry, I no longer write reviews with
test samples on a "loaner" basis (I require proper compensation for my time /
hard work doing reviews with
radios I "normally" care not to actually own / purchase).