Uniden Bearcat BC898T
Scanning Receiver

The discontinued Uniden
Bearcat BC898T "Scanner" Receiver.
N9EWO's review is below.
(Photo : N9EWO)
Discontinued
Receiver
2 Samples tested for this report.
2004 Tested Sample # 1 Serial Number (approx.) : 322Z440008xx
2006 Tested Sample # 2 Serial Number (approx.) : 322Z640005xx
County of Mfg. (including AD-140U AC Adapter) : China
Jameco # 170245 aftermarket 12v 1 amp regulated
adapter (see text below) : Taiwan
- Faulty Firmware (as received with sample # 1 new) : U 1.27 ,
checksum SEd7H
- Properly Working "Updated" Firmware : U 1.29
, checksum EF9SH
- With "Rebanding" Firmware (2009): U 1.60 ,
was NOT tested
Ok, it's been a long while since I have owned a real "scanner".
Normally I don't cover this type of receiver here as I'm not into
VHF/UHF monitoring much and just use a amateur handheld for that.
But I wanted to get my feet wet with one of these "Trunking"
scanners even if it's used very light where I live , and as well
as having a set around for the local PD if the naborhood does
wild. Ease of use is another major issue.
The BC-101 "No Crystal" / BC-210 "Direct
Entry" and BC-100 "Handheld" Scanners,
I have owned other "Bearcat" scanners over the
years. Let's see.....it started for me with a (non-Uniden Electra)
BC-101 in early 1976 I think it was. As many know this was the
first synthesized model with the Bearcat name on it that did not
use crystals. After 2 samples of this set, I gave up. UHF had so
much phase noise mixed in that it almost covered up the desired
signal.
About a year later (spring of 1977), I purchased a sample from
the first production run of the Bearcat BC-210.
This was of course much better with keyboard entry and LED
display. A nice front mounted speaker too. But it did not cover
the entire 2 meter amateur radio band. 146 to 148 Mhz only. Also
had excessive phase noise as well, but not quite as bad as the
old BC-101 beast. No doubt it was a landmark "scanner"
for the day. No more crystals...yeah. Did not have the greatest
keyboard to speak of, but it worked. I think I gave about $ 300.
for the thing. That was alot a change in 1977. Lacked the real
diecast bezel found on the BC101 however, which I liked.
A few years after that I purchased a Bearcat BC-100
"Handheld" synthesized marvel. The phase noise was
again totally unacceptable (as was battery life) and after 3 of
these I said "forget it". Well the first one was almost
a DOA and again all came from the first production run. The
rubber antenna socket on these first units was a total joke and
battery contacts/battery cover on the bottom was extremely poor (Note
: Both issues were cleared up in later production samples, BNC
socket was added and 2 screws on battery cover).
We now avoided Bearcat stuff for many years, even after the
Uniden purchase from Electra (Masco). I will admit that after the
takeover the new radios looked much more solid all around, but
still I said no.
The Uniden BC-890XLT, Another Dog !!
Then I seen the Uniden BC890XLT tabletop unit appear on the
market and was thinking "this is pretty neat" as it has
a real tuning knob and a large table top design. Yes a low cost
receiver of this type but mind you but it's no communications
receiver and I understood that. So I made a purchase of one of
these and again it was from a early production run. The 800 Mhz
band was totally useless for me. Was awashed with cell phone
signals and digital buzzies overload across the entire band at my
location. Was only a dual conversion scheme. The receiver worked
OK in other bands.
Needless to say, that put any additional Uniden "Bearcat"
purchases even on hold again for many years to come.
The BC-898T Scanner with Narrow Band FM mode.
I really needed to get my feet wet with all of this new
trunking stuff, so a lookin I go.
Let me say that I was not prepared to spend alot of money on this
new box with trunking, so price was a major issue. I seen the BC895XLT
appear on the market but never went for one as it looked too much
like the BC-890 and felt that it was the same box, but with
trunking added (but as it turns out is a triple conversion set).
But after I seen the updated version of the set appear, I went
for one of these BC898T's in mid August 2004. Once again it's
from one of the first (if not the first) production runs.
So just a few tidbits on this set that I feel are important. The
Bearcat manuals still lack any real receiver specifications to
speak of. That part has not changed at all with Uniden over
Electra.

Rear View of the Uniden
BC898T.
Note the standard female DB-9 pin RS232 connector for computer
control / programming.
As is the case with most Uniden scanners, a low quality "
fork" style (center pin) BNC antenna connector is still used.
(N9EWO photo)
Uniden Bearcat BC898T
Features (N9EWO List)
- Frequency steps include the now important 7.5 and 6.25 khz
steps (either not covered on the BC895XLT). The
manual indicates that the 6.25 Khz split really means 7.5 Khz
when programming 150.00-162.00 Mhz.
- "ATT" (antenna attenuator) function
now found on BC898 (missing on the BC895XLT). Can be selected for
each channel.
- 500 total memory channels (50 channels in each
of 10 banks).
- Wiill store 1000 total talk groups entries.
- 200 Talk Group Skip Memories. 100 Search Skip Memories. 10 search ranges (using the bank buttons).
- Modes cover AM / FM and now the new important NFM mode (lacked
on the 895). This will be most needed in a few years time as well
as the 7.5 khz steps in the VHF band.
- Tuning steps and modes are not tied down to
certain bands. You can select any mode : FM, FMN or AM or step on
any band. (There is no FM wide on the BC898T, nor is frequency
coverage for those modes provided.)
- Large "top mounted" speaker
| A Couple Of Standard "Uniden" Keyboard Tricks That Work On The BC898T |
| This Information is NOT found in the
owners manual of course. - For a "Hard Reset" (will clear all the settings and memories) : Hold " 2 + 9 + MANUAL " while turning power on. - To check the firmware version : Hold " 2 + 4 + 9 " while turning power on. (versions tested : U 1.27 , and U 1.29). |
Better Coverage over old BC895 model / Excellent CTCSS -
DCS Search That is Super Easy To Use
Frequency Coverage now dips down to 25 Mhz. The "10-4"
Citizens Band is now covered. The BC895XLT started at 29 Mhz.
No, the BC-898T is not a wide band coverage set.
But it's not priced at $ 500 either.
So coverage goes (AM, FM and FMN modes):
25 to 54 Mhz
108 to 174 Mhz
216 to 512 Mhz
806 to 823.9875 Mhz
849.0125 to 868.9875 Mhz
894.0125 to 956 Mhz
DCS now included with the CTCSS (895 lacked DCS), and I have
also been told that it decodes MUCH faster than the old BC895 (and
other Uniden sets) did with CTCSS search. It's indeed very zippy in searching CTCCS or DCS tones
or codes, excellent in fact. It does not mute the receiver as it's
doing this either. You don't even have to know what type as it
will figure out which one it is.
It's extremely easy to use too (a no brainer).
Here is where amateur radio transceivers fall flat
on their face, tone scan is usually some weird chore that is slow
at best.
Bad News Right Out of the Box on first
2004 sample. the CTCSS/DCS failure issue.
With the first 2004 sample I purchased the CTCSS/DCS
function failed to function after about 8 hours of operation.
Worked fine until then. Regular signals continued to be received
OK even after the channels that had CTCSS/DCS on them went sour.
The real stinker is if I powered off the receiver and then back
on, "boom" it would all work again. But only for
another 8 hours or so. It again died again after the same time
period.
I was not the only person reporting this issue with the BC898T
either on these first units. For some owners it has been reported
that the problem took as long as 3 weeks to show up.
After talking to Uniden's "so called" customer
service twice on the phone for a couple of "run-a-rounds",
I was told to send my sample back to Uniden (Ft.Worth Texas) and
about a month later it was returned to me with new firmware
installed (U1.29). The receivers firmware is indeed flashable
with the BC898T model.
This indeed cleared up the problem, but this also proves that the
set DID NOT receive enough beta testing before it was placed on the
market, leaving many owners TOTALLY in the dark and in a nasty
mood (including me) !!
Real "Line Audio Output" that is just about
useless. Triple Conversion.
The LINE OUT jack is now a real line out. Unlike the BC890
and 895 that were not (just a attenuated speaker output). Volume
control does NOT affect the line output on the BC898T. Toggled
for each channel with Line button for use with VOX tape recorders.
No more relay "remote" jack.
The down side is that there is a NASTY lag time that can be about
2 SECONDS once the squelch is broken before the "line"
jack has any audio. So you can miss up to the first 2 seconds on
a tape recording. Great that they have a real line out now, but
this excessive delay is a worst nasty I think. Also it's bit
hissy (as the receiver is anyway) and the line output level is
on the light side with a nasty pop every time the squelch is
broken or engaged. Needless to say the
"Line Out" jack is pretty much useless. NOTE : The
older BC785D model also suffers from this same bug.
The BC898T is using the same "Triple conversion"
receiver layout as the old BC895XLT. So that should make the
first IF around 380 Mhz, second about 45 Mhz and 450 khz on the 3rd
?


Internal "Top"
view of the main PC Board in the Uniden BC898T (left).
The older BC785D model uses greater internal shielding (right)
(N9EWO Photo's)
Generally Good Audio (slightly
hissy), But Still Needs External Speaker to Sound Right. External
Speaker Jack On Front Panel.
The BC-898T has a fairly large top mounted speaker. It
generally gets the job done, but it has a bassy trait that I do
not care for. I used a external "audio response"
speaker that made a huge improvement. Why the external speaker (and
line output) jack continue to be found on the front is strange.
These should be located on the rear panel in my view with a
HEADPHONE jack still on front with the anti-blast resistors (this
should not replace the external speaker jack either). The
general output is a bit hissy as well, but not to any nasty
levels like the Yaesu VR-5000 "hiss king".
Good Overall Performance, 800 Mhz just OK / VHF-Lo Fair / No
Alpha Tags / NOT Using LED's for Backlighting.
Using the included whip, sensitivity in the VHF-Hi (108-174 Mhz)
and UHF (400 to 512 Mhz) area's to me are very good if not
excellent. I can hear a weak 222 Mhz amateur repeater on the BC898T
quite well. This is one of the very few receivers I have even
done this with only using the back of the set antenna. 800-900
Mhz sensitivity being only average but no more. However the VHF
"Low Band" (25 to 54 Mhz area) is only on the fair side
on the 2 samples I have used.
As may pepole have already said, the set does lack any "alpha
tags" and is a very important missing feature. But the price
point would suffer I think if it were to be added, so it goes.
A MAJOR gripe : Why Uniden used 4 "panel
lamps" (2 on each end) to light up the display is beyond me
?? LED's are cheaper these days and last much longer. Arrg !! At
least a way to dim it down or turn off the backlight all together.
And "Uniden" if you might change to LED backlighting
down the road with this style, how about ONE other LED color
display selection added the same time (I would say GREEN). Even
the older BC785D model (from 2003) that I have used uses 8 LED's
to light up the LCD display.
Intermod Issues.
The tested samples were used in a city of about 80,000 ,
so were are not talking about a huge metro city here. Only using
the included "back of the set" antenna, I noticed a
pretty heavy amount of intermodulation products in the 400 to 440
Mhz government part of the spectrum from signals in the 460~465
Mhz area. Other than this I noticed no other nasty receiver
quirks. Please note that no outdoor antenna's were used in
testing , just the back of the set antenna .
WARNING : I will NOT
be held responsible for any information that is listed
here. |
Included AC Adapter "Hums" Slightly.
If one uses the included AD-140U AC adapter and listens very
carefully, I hear a slight hum with the internal audio amplifier.
Note: I'm very sensitive to this sort of thing and many may not
even detect this.
Jameco in the USA sells a very nice "117 vac" REGULATED "LINEAR" 12 volt 1 amp wall
wart that cures this totally (about
$ 20. plus shipping at the time this text was added). Note : As
Jameco purchases surplus AC adapters, this product is subject to
be "Sold Out" at any time.
Jameco model number 170245 Regulated 12 volt @
1000 ma adapter (on right).
This fixes the slight hum given with the included AD-140U
Uniden adapter (on left).
(No goofy universal adapter
voltage switches or plugs to have to play with either, totally a
plug and play adapter)
(N9EWO Photo)
A minor downside to this however.
The only gremlin using this Jameco wall wart supply is that the
measured voltage output is about 12.4v, so the audio amplifer has
a touch less punch. The voltage with the unregulated AD-140U
adapter and the BC898T operating is approx 13.6 volts. This
drops the performance of the receivers TDA1905 5 watt audio
amplifer IC "slightly" (about 800 mw's from looking at
the IC's spec sheet). I have found that this actually helps
making the volume control a bit more linear, very good for
adjusting the volume late at night (with the AD-140 adapter in
use this is a bit harder to do as it's louder). But if you need
and must have total audio punch, then still use the AD-140U or
another LINEAR regulated supply that can supply 13.6 to 13.8 DC
volts for no slight hum.
The audio amplifer in most "lower cost"
receivers (including the BC898T) do not see any internal
power regulation that the rest of the circuits see. The audio amp
receives the raw input voltage. Well almost as with the BC898T it
does see a power choke, 2800 ohm surface mount resistor and a
elect. capacitor, but that's about it (no internal voltage
regulation with the audio amp IC).
Nice Tuning Knob (encoder) / Some keys only fair.
The tuning knob uses a mechanical encoder , and as the case
usually is with these, it will skip a channel once in awhile in
rotation. But is not as much of an issue as with a shortwave
receiver as it's use is much less and the price point gets in the
way again.
Most buttons all have a good feel and work good. However, the
numeric entry keys (0 to 9), and the 6 keys just left of the LCD
are very stiff and require more of a punch for entry. A number (say
4) of proper size stick on rubber feet on the rear bottom edge of
the cabinet is a good idea because of this. Remove the paper
white sticker on that bottom edge along with the sticky remains
before you do this. Allow at least 48 hours before you more it
around after you stick these on so the feet's glue sets properly.
Nice scanner but why did we have to put up with the CTCSS/DCS
bug at all ??
The BC898T performs well with many features and ease of use in a
great larger package with that super "tuning knob" to
boot. The receiver sensitivity is excellent across the range for
the price point. Above frequency average coverage as well. One
has to remember that this is a "scanner" and NOT a
communications receiver. It was the largest and heaviest scanner
in Uniden's product line until it was discontinued in September
2009. Of course if you need P25 digital mode, this is NOT the
model for you.
However, why did I have to put up with the headaches that I had
to deal with on the first sample, and the extra money spent (for
shipping, etc) back in 2004. There should have been more time
"beta" testing of this product before it was placed
onto the market.
Anyway, I'm very glad to see that the problem is behind us
with Uniden fixing this MAJOR problem even if it took a good
month back in the fall of 2004. But a few "not so happy" customers
in the process. Uniden's extremely POOR customer service sure did
not help.
The owners manual is the another area that totally unacceptable.
Yes, it's that bad to my eyes. It might make a "trunking
newbe" to heave it all in the trash not having the computer
software.
Dave N9EWO
© N9EWO
ver 3.10
Discontinued
Receiver

My first scanner (handheld)
in 1975, was the Radio Shack (GRE) " Realistic PRO-5 ",
cat. number 20-169 ($ 120. USD).
4 Channel UHF band only "crystal" receiver, used 4 AA
batteries for power and was super neat for the day.
However, it was a battery hog and the AA battery holder's 2
plastic mounting tabs broke off in time. The 4 low cost slide
switches failed as well.
FYI : The Realistic PRO-4 was the FIRST handheld scanner on the
market in 1974 (not shown),
and ran on two 9 volt batteries (not shown), later samples in
1975 used only a single 9 v battery.
Links
(Subject To Change Without Notice)
Texas
Attorney General
Ft.
Worth, Texas "Better Business Bureau"
Yahoo
Groups : BC898T