home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Tech Arsenal 1
/
Tech Arsenal (Arsenal Computer).ISO
/
tek-20
/
radiomd2.zip
/
PRO2004.7
< prev
next >
Wrap
Text File
|
1991-02-22
|
4KB
|
104 lines
PRO2004.7
Part 4/4
Owner's Manual
The user manual suffers from Japanese to English
translation problems, but is fairly good, resembling
other Radio Shack scanner manuals.
A single page frequency allocations chart is included,
but is not current. There is a very simplified block
diagram, but no schematic. The Maintenance section
contains a useless troubleshooting chart, accompanied
by advice like "keep it dry" and "do not drop". Thank-
fully, detailed service manuals for Radio Shack scan-
ners are usually available for $5.00 or $7.50.
The PRO-2004 is warranted for 1 year, which is reas-
suring.
What's Missing?
So with all these neat features, what's missing from
the PRO-2004? A "search and store" mode, like that on
the ICOM R7000 and older Bearcat 250 would have been
nice. A lighted keyboard and a signal strength meter
would also be welcome.
Having a COR (carrier operated relay) output, like ICOM
R7000 and old Bearcat 250 have, would be useful for
actuating a tape recorder.
Summary
If all one wants is a scanner to monitor local police
and fire, there are certainly cheaper and simpler
models than the PRO-2004. This scanner is for those
who enjoy actively exploring voice communications in
the VHF/UHF spectrum.
The PRO-2004 has the right features and performance,
especially for scanning the wide 225-400 MHz military
aircraft band. Good design should not to be taken for
granted. GRE engineers used the power of the micropro-
cessor to implement useful features in the PRO-2004.
Similar processing horsepower was not used so wisely in
a recent Yaesu scanner.
At about $400, the PRO-2004 provides a good alternative
to those not wishing to spend $950 for an ICOM R7000.
TABLE 1. Sensitivity of Radio Shack PRO-2004 vs. ICOM R7000
_______________________________________________
| Band | PRO-2004 R7000 |
|____________|_________________________________|
| 47 MHz | slightly less slightly more |
| | sensitive sensitive |
|____________|_________________________________|
| 72 MHz | more sensitive less sensitive|
|____________|_________________________________|
| Commercial | (not tested) (not tested) |
| Air Band | |
|____________|_________________________________|
| 150-165 MHz| equal equal |
|____________|_________________________________|
| 223 MHz | less sensitive more sensitive|
|____________|_________________________________|
| 460 MHz | equal equal |
|____________|_________________________________|
| 855 MHz | much more much less |
| | sensitive sensitive |
|____________|_________________________________|
| 953 MHz | more sensitive less sensitive|
|____________|_________________________________|
TABLE 2. Sensitivity of Radio Shack PRO-2004 vs.
UNIDEN/Bearcat 800XLT
_______________________________________________
| Band | PRO-2004 800XLT |
|____________|_________________________________|
| 47 MHz | equal equal |
| | (many images) |
|____________|_________________________________|
| 72 MHz | N/A N/A |
|____________|_________________________________|
| Commercial | (not tested) (not tested) |
| Air Band | |
|____________|_________________________________|
| 150-165 MHz| less sensitive more sensitive|
|____________|_________________________________|
| 460 MHz | less sensitive more sensitive|
|____________|_________________________________|
| 855 MHz | slightly less slightly more |
| | sensitive sensitive |
|____________|_________________________________|