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Baofeng UV5R series
  
Performance Tests
         
Antenna Sweeps

 
Power/Sensitivity Test 3 (below) shows VHF squelch
settings were corrected on units with newer firmware.

 
 
 
TEST 1 -  Steve  WB8GRS
 
March 23, 2012 - BFB238
 
 
SQUELCH
I measured the input sensitivity required to just open the squelch on both UHF and VHF.

UHF -
Measured at 446 MHz using 3.3 kHz deviation and 1 kHz modulation. Radio was set to Wide mode.
SQ level 1 = 0.10uV
SQ level 2 = 0.12uV
SQ level 3 = 0.13uV
SQ level 4 = 0.15uV
SQ level 5 = 0.18uV
SQ level 6 = 0.20uV
SQ level 7 = 0.23uV
SQ level 8 = 0.26uV
SQ level 9 = 0.30uV

VHF -
Measured at 146 MHz using 3.3 kHz deviation and 1 kHz modulation. Radio was set to Wide mode.

All squelch level settings 1 through 9 all open squelch at 0.1uV.
At least on my UV-5R the squelch is NOT working correctly.
Does anyone else have a calibrated RF signal generator that can confirm my finding?


SENSITIVITY

Sensitivity - I only measured the receiver sensitivity at one frequency on UHF and VHF. Deviation was set to 3.3 kHz with 1 kHz modulation. Radio was set to Wide mode.

UHF - 446 MHz = .27uV for 20dB quieting
VHF - 146 MHz = .25uV for 20dB quieting

POWER OUTPUT

Power Output - Was measured with a fully charged battery.
Transmitter was keyed for 3 seconds before the measurement was made.
Transmitter was allowed to cool for 30 seconds before next measurement.

Measurement was made using a Bird Wattmeter and 5 Watt UHF and VHF slugs.
All measurements were made using a 50 Ohm dummy load.

UHF - Low Power

400 MHz = 1.1  Watts
410 MHz = 1.1  Watts
420 MHz = 1.1  Watts
430 MHz = 1.1  Watts
440 MHz = 1.1  Watts
445 MHz = 1.1  Watts
450 MHz = 1.05 Watts
460 MHz = 1.05 Watts
470 MHz = 1.25 Watts
479 MHz = 1.35 Watts

UHF - High Power

400 MHz = 3.9  Watts
410 MHz = 3.9  Watts
420 MHz = 3.9  Watts
430 MHz = 3.8  Watts
440 MHz = 3.95 Watts
445 MHz = 3.95 Watts
450 MHz = 4.05 Watts
460 MHz = 4.2  Watts
470 MHz = 3.9  Watts
479 MHz = 3.5  Watts

VHF - Low Power

137 MHz = 1.2  Watts
140 MHz = 1.1  Watts
145 MHz = 1.2  Watts
150 MHz = 1.2  Watts
155 MHz = 1.35 Watts
160 MHz = 1.3  Watts
165 MHz = 1.25 Watts
170 MHz = 1.1  Watts
173 MHz = 1.0  Watts

VHF - High Power

137 MHz = 4.2  Watts
140 MHz = 4.2  Watts
145 MHz = 4.3  Watts
150 MHz = 4.4  Watts
155 MHz = 4.3  Watts
160 MHz = 3.8  Watts
165 MHz = 3.7  Watts
170 MHz = 3.7  Watts
173 MHz = 4.0  Watts
 
Receiver sensitivity and power output is well within what I would consider normal.

Steve, WB8GRS

 
 
 
TEST 2 -  Les  VA6LM  &  Ray  VA6RS
  
August 22, 2012
 
 
Just hooked up my new UV-5R to my service monitor and ran it through some tests:

VHF   f = 146.520 MHz
Receiver 12 dB SINAD = 0.14 uV
Receiver Squelch (with squelch menu setting at 3) = 0.06 uV

Transmitter Power Output (Low)  = 1.5 Watts
Transmitter Power Output (High) = 4.5 Watts

UHF   f = 446.000 MHz
Receiver 12 dB SINAD = 0.13 uV
Receiver Squelch (with squelch menu setting at 3) = 0.08 uV

Transmitter Power Output (Low)  = 1.4 Watts
Transmitter Power Output (High) = 4.3 Watts

These numbers are VERY good! The receiver is super sensitive!
A typical "YeaComWood" hand-held receivers spec out at 0.32uV on 2m and 0.16uV on 70cm - and they "fudge" the results by using 3.5 kHz deviation in the SINAD test.

It's supposed to be 3 kHz - and yes, a FM receiver will receive a high deviation weak signal better than a low deviation weak signal.

For a $50 radio, the transmit & receive performance is equal to (if not better) than anything else out there...

Les, VA6LM / Ray, VA6RS

 
 
 
TEST 3 -  Lance  KW7LH
  
Tests run with BFB297
  
Jan 26, 2013
 

 I just checked my UV-5RA using an IFR 2945A Communications monitor.

Radio tested: UV-5RA

VHF Tx
tested at 146.34 MHz
Pwr Out: 4.99w
CTCSS Deviation:680Hz
Voice Deviation (spoken “one”) wide = 4.0 kHz narrow = 1.58 kHz
Voice Deviation (whistle)           wide = 5.1 kHz narrow = 2.47 kHz
Spurs: Down more than 60dB

VHF Rx
tested at 146.940 MHz
Sensitivity (to break squelch) I did not test signal/noise:

Squelch 0 = Squelch off
Squelch 1 = 0.066uV
Squelch 5 = 0.108uV
Squelch 9 = 0.170uV

UHF Tx
tested at 441.625 MHz
Pwr Out: 4.48w
CTCSS Deviation:680Hz
Voice Deviation (spoken “one”) wide = 4.17 kHz narrow = 1.41 kHz
Voice Deviation (whistle)           wide = 4.89 kHz narrow = 2.32 kHz
Spurs: Down more than 60dB

UHF Rx
tested at 446.625 MHz
Sensitivity (to break squelch) I did not test signal/noise:
Squelch 0 = Squelch off
Squelch 1 = 0.050uV
Squelch 5 = 0.199uV
Squelch 9 = 0.257uV

Voice deviation figures are what is normally expected for complex waveforms.
The 2.5 & 5 kHz figures are Max limits.

The specs look good, and sensitivity is excellent.
I do not have the equipment to do selectivity and adjacent channel rejection/blocking tests, but we all know from experience that this LCR has very little front end filtering, so performance in high RF environments is not great.
  
Lance KW7LH

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