Radar F
Test Data

Believed to be an MPH K-55

Beamwidth:	24.6 degrees
Power (ERP):	26.3 milliwatts (14 dBm)
Detection Range:	105 feet to 300 yards (30 m to 0.27 km)
Low Voltage:	6.6 Vdc, Blanks display but retains correct reading.
Type:	multi-unit (separate antenna / display)

Noted Abnormalities;

patrol speed shadowing
While the patrol car was traveling at 35 mph, radar measured patrol car speed was 20 mph and target speed displayed was 76 mph. A patrol speed of 47 mph dropped to 35 mph as a large truck passed patrol car (patrol speed shadowed about 20 percent of the time trucks passed).
target speed bumping (batching)
On rare occasions target speed readings increased 2 or 3 mph when patrol speed suddenly increased or decreased.
panning error
Panning produced various displayed target speeds.
AC/Heater fan
Picked up fan when antenna pointed at dash.
external CB radio
A CB 175 feet away caused radar readings of 60 to 70 mph.
external 100 watt police radio
Caused radar readings when 5 to 30 feet away (depended on location)
internal CB radio
Not tested because unit so sensitive to external CB transmissions.
internal 100 watt mobile police radio
Blanked out readings on weak signals but had no effect on strong signals.
internal 2 watt handheld police radio
Blanked out readings on weak signals but had no effect on strong signals.

RANGE TEST DATA
Range test conducted on straight stretch of open 2 lane highway 1.8 miles long. Radar operated from standard 4 door sedan.

PATROL CAR      TARGET       CLOSING     RANGE
Radar  mph   vehicle mph     sec  mph    miles  yards  feet   km

  F    41     Pinto   50     2.0   91    0.05     88    265   0.08
  F    43     Pinto   50     2.0   93    0.05     88    265   0.08
  F    50     Pinto   50     2.2  100    0.06    105    315   0.1

  F    41    T-Bird   44     2.0   85    0.05     88    265   0.08
  F    42    T-Bird   51     2.0   93    0.05     88    265   0.08
  F    32    T-Bird   44     6.0   76    0.06    105    315   0.1
  F    38    T-Bird   48     3.5   86    0.08    140    420   0.13

  F    42   Winnabego 35     1.0   77    0.02     35    105   0.03
  F    46   Winnabego 65     4.0  111    0.12    210    630   0.19
  F    42   Winnabego 47     5.6   89    0.14    250    740   0.23
  F    52   Winnabego 50     6.0  102    0.17    300    900   0.27

TRANSMIT FREQUENCY DATA

                           TRANSMIT      FREQUENCY FROM
      TEST CONDITION       FREQUENCY   AMBIENT   10.525 GHz
                              GHz        MHz        MHz
 AMBIENT TEMP, 13.6 Vdc     10.5509        -       25.9 (out of band)
-30 degrees C, 13.6 Vdc     10.5560       5.1      31.0 (out of band)
 60 degrees C, 13.6 Vdc     10.5462      -4.7      21.2
 AMBIENT TEMP, 10.9 Vdc     10.5509       0        25.9 (out of band)
 AMBIENT TEMP, 16.3 Vdc     10.5509       0        25.9 (out of band)

-30 degrees Celsius (C) = -22 degrees Fahrenheit (F)
60 degrees Celsius (C) = 140 degrees Fahrenheit (F)

TUNING FORK DATA

RESONANCE
FREQUENCY   CALCULATED  LABELED
   Hz          mph        mph
 1565.2       49.87       50

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Radar F
Test Data