Pro 404

[Mtnrider]

A friend got one for christmas and want me to get the programming fixed...i have the 20-047 cable and need to know A) what program works best B) will this do the newer highband frequencies ? like 151.4825...before i even bother...thanks in advance

 

[RonnieUSA]

A friend got one for christmas and want me to get the programming fixed...i have the 20-047 cable and need to know A) what program works best B) will this do the newer highband frequencies ? like 151.4825...before i even bother...thanks in advance

From the RadioShack PRO-404 200-Channel Handheld Scanner (User's Guide) dated January 21, 2013

Specifications
Frequency
Coverage
(MHz)
10 Meter Amateur Radio
................
29–30 (in 5 kHz steps)
VHF Lo
.............................................
30–50 (in 5 kHz steps)
6 Meter Amateur Radio
..................
50–54 (in 5 kHz steps)
Aircraft
...........................
108–136.9875 (in 12.5 kHz steps)
Government
...........................
137–144 (in 12.5 kHz steps)
2 Meter Amateur Radio
..............
144–148 (in 5 kHz steps)
VHF Hi
..................................
148–150.8 (in 12.5 kHz steps)
VHF Hi
.......................................
150.8-162 (in 5 kHz steps)
VHF Hi
.....................................
162-174 (in 12.5 kHz steps)
Amateur Radio/Government
380–450 (in 12.5 kHz steps)
UHF Standard
.........................
450–470 (in 12.5 kHz steps)
UHF “T”
..................................
470–512 (in 12.5 kHz steps)
Channels of Operation
.................................
200 channels
Sensitivity
(S+N)/N
20
dB
29–54 MHz
.................................................................
0.5 uV
108–136.9875 MHz
....................................................
1.0 uV
137–174 MHz
.............................................................
0.5 uV
380–512 MHz
.............................................................
0.7 uV
Spurious Rejection (FM @154 MHz)
........................
50 dB
Additional Info
Selectivity
±8 kHz
........................................................................
–6 dB
±17 kHz
....................................................................
–50 dB
Search Speed
.....................................
Up to 80 Steps/Sec
Scan Speed
..................................
Up to 40 Channels/Sec
Delay Time
........................................................
2 Seconds
IF
Frequencies
1st IF
....................................................................
10.7 MHz
2nd IF
......................................................................
455 kHz
IF Interference Ratio (10.7 MHz)
..........
70 dB at 154 MHz
Squelch
Sensitivity
Threshold
..................................................
Less than 0.5 uV
Tight (FM)
.................................................
(S + N)/N 25 dB
Tight (AM)
................................................
(S + N)/N 20 dB
Antenna Impedance
............................................
50 Ohms
Audio Output Power (10% THD)
..........
180 mW Nominal
Built-In Speaker
.................
1 3/8 Inches (36 mm), 8 Ohms
Operating Temperature
........
14° to 140°F (–10° to 60°C)
Power Requirements
..................................
4 AA Batteries
............................................
9V AC Adapter (not supplied)
............................................
9V DC Adapter (not supplied)
Current Drain (Squelched)
......................................
45 mA
Dimensions (HWD)
.............................
5
Ð
x 2
È
x 1
Ï
In
...............................................................
(145 x 63 x 40 mm)
Weight (without antenna)
...............
approx. 7.8 oz (220 g)
Specifications and depictions are subject to change and
improvement without notice. Actual product may vary
from the images found in this document.

So It looks like yes.

 

[Mtnrider]

Yeah i looked that up....i was looking for real world use.....better to have "user" input....Thanks...

 

[nanZor]

Butel's ARC404 may be worth looking into.

No, you will not be able to program 151.4825, it will round off to 151.480. However, you may still be able to hear it programmed like this with a lower audio level, and if there are no other nearby channel users.

Note that the sensitivity levels listed above are slightly mis-separated - ie the airband sensitivity is 1uv, not as good as .5uv. NOT a super big deal, and appreciate the data, but just wanted to point this out if someone was spec-shopping a radio and took a casual glance.