Uniden
PRO520E (UT-317A)
Documentation Project
CBTricks.com
SPECIFICATIONS
CB AM TRANSCEIVER MODEL: PRO 520e (UT-317A)
GENERAL
1. Channels: |
40 |
2. Frequency Range: |
26. 965 MHz to 27.405 MHz |
3. Semiconductors: |
12
Transistors, 33 Diodes, 7 IC's |
4. Crystal Oscillators: |
1 |
5. Microphone |
Electret Condenser Type |
6. Speaker: |
16 ohm 3 W Max |
7. Antenna Connector: |
M-Type |
8. Jacks & Connectors: |
Mic
5pin Din |
9. Controls: |
Channel
Selector, Volume /Power ON-OFF, |
10. LED Bar Meter: |
HF Output Poker, Signal Strength, |
11. Illumination Indicators (LED): |
Channel Readout, TX |
12. Cabinet Size: |
W:
116 mm |
13. Weight: | 0.75 kg |
14. Accessories: |
Microphone, Microphone Hanger, and Mounting Bracket with Screws |
MEASURMENT CONDITIONS
1. Standard DC Power: |
13.8V DC |
2. Test Temperature: |
25°C ±5°C |
3. Standard Audio Frequency: |
1kHz |
4. Standard RF Input: |
1mV |
5. Standard Ref. Modulation: |
30% |
6. Standard Ref. Audio Output: |
0. 5W |
7. Standard Ref. Audio Load: |
8 ohm Resistive |
8. Antenna Impedance: |
50ohm |
9. Measurement Channel |
19 |
10. Standard Method of Measurement: |
EIA RS-382 ( ISS : 8-26-86 ) |
NOTE: Limit specs. Are for measurement on all channels.
RECEIVER (ANL OFF)
ITEMS |
UNIT |
Nominal |
LIMIT |
1. Usable Sensitivity (10dB S/N) |
uV |
0.5 |
1 |
2. Max. Sensitivity |
uV |
0.5 |
1 |
3. RF Gain Range |
dB |
30 |
20 |
4. Audio Output @ 10% THD |
W |
4.0 |
2.0 |
5. Max. Audio Output Power |
W |
7.0 |
3.0 |
6. Max. S/N @ 1mV |
dB |
35 |
25 |
7. Squelch Sensitivity: |
|
|
|
Threshold |
uV |
0.5 |
1.0 |
Tight |
uV |
1000 |
250 to 4000 |
8.
AGC Figure of Merit |
dB |
85 |
75 |
9.
Audio Response |
|
||
Lower
|
Hz
|
300
|
400
Max
|
Upper
|
Hz |
2000 |
1600 Mim |
10.
Detector Linearity 1mV, |
%THD |
4.0 |
7.0 |
11. ANL Performance |
dB |
4 |
7 |
12. Adjacent Ch. Rejection |
dB |
60 |
45 |
13.
"S" Indicator |
uV |
1000 |
500 Mim |
14. Spurious Resp. |
|
|
|
-
22.734MHz (Ch 40)
|
dB
|
50
|
40
|
All
other freqs.
|
dB |
55 |
45 |
15. Image Rejection Ratio (900 kHz) |
dB |
80 |
60 |
16. IF Rejection Ratio 1ST & 2ND |
dB |
70 |
60
|
17. 1/2 i-f Rejection Ratio |
dB |
55 |
45 |
18. OsciLlator Drop Out Voltage |
V |
9.0 |
11.0 |
19.
Public Address Output |
W |
3.0 |
2.0 |
20. Battery Drain |
|
|
|
- No Signal
|
mA
|
250
|
350
|
- Max. Audio |
mA |
1400 |
1700 |
TRANSMITTER
ITEMS |
UNIT |
Nominal |
LIMIT |
1. Carrier Power - No Mod. |
W |
4.0 |
3.6 to 4.4 |
2. Frequency Tolerance after 5 mm. |
%
|
±0. 002 |
±0.
003
|
3. Spurious Harmonic Emission |
dB |
-70 |
-60 |
4. Battery Drain |
|||
- No Mod |
mA
|
850
|
1300
|
- 80% Mod. |
mA |
1300 |
1700 |
5. Modulation Freq. Resp (1kHz, 0dB Ref) |
|
|
|
300Hz |
dB |
-6 |
C to -12 |
2500Hz |
dB |
-6 |
C to -12 |
6. Microphone Sensitivity |
|
|
|
50% Mod. |
mV |
7 |
15 |
7. ANC Range 50 to 100% Mod. |
dB |
36 |
30 |
8. Transmit Hum & Noise |
dB |
50 |
40 |
9. Relative Power Meter (No Mod.) |
4th just ON |
3
Mim
|
|
10. Transmit Distortion (1kHz, 80% Mod.) |
% |
4.0 |
7.0 |
OVERALL PERFORMANCE
1. Output Protection: Shall meet for 5 minutes for all VSWR'S (around the Smith Chart) of 20:1 without damage.
2. Output stability of all VSWR'S (around the Smith Chart) of up to 5:1 under continuous operation of a duty cycle of 5 minutes transmitting, and 1 minute receiving.
3. Reverse Polarity Protection: Shall have reverse polarity protection and be operable with positive and negative grounding.
4. Standard Operating Temperature: -30șC to +50șC
5. Storage Temperature: -40șC to +70șC
6. Electrostatic Discharge Protection: All external case and component parts shall withstand the application of 15kV ESD without causing failure or malfunction to the unit.
Test
Conditions - Probe:
150
pF with 500 ohm in series
Temp:
25șC