Holland Electronics HPM55 User Manual
Hpm55, Audio video modulator, Channel ： 2 ~ w
DIP Switch Settings
STD
CH.
VIDEO
ONES CHANNEL
TENS CHANNEL
FREQ(MHz)
1 2 3 4 5 6 7 8
2 55.25
0
1
0
0
0
0
0
0
3 61.25
1
1
0
0
0
0
0
0
4 67.25 0
0
1
0
0
0
0
0
5 77.25 1
0
1
0
0
0
0
0
6 83.25 0
1
1
0
0
0
0
0
7 175.25 1
1
1
0
0
0
0
0
8 181.25 0
0
0
1
0
0
0
0
9 187.25 1
0
0
1
0
0
0
0
10 193.25 0
0
0
0
1
0
0
0
11 199.25 1
0
0
0
1
0
0
0
12 205.25 0
1
0
0
1
0
0
0
13 211.25 1
1
0
0
1
0
0
0
A 121.2625 0
0
1
0
1
0
0
0
B 127.2625 1
0
1
0
1
0
0
0
C 133.2625 0
1
1
0
1
0
0
0
D 139.25 1
1
1
0
1
0
0
0
E 145.25 0
0
0
1
1
0
0
0
F 151.25 1
0
0
1
1
0
0
0
G 157.25 0
0
0
0
0
1
0
0
H 163.25 1
0
0
0
0
1
0
0
I 169.25 0
1
0
0
0
1
0
0
J 217.25 1
1
0
0
0
1
0
0
K 223.25 0
0
1
0
0
1
0
0
L 229.2625 1
0
1
0
0
1
0
0
M 235.2625 0
1
1
0
0
1
0
0
N 241.2625 1
1
1
0
0
1
0
0
O 247.2625 0
0
0
1
0
1
0
0
P 253.2625 1
0
0
1
0
1
0
0
Q 259.2625 0
0
0
0
1
1
0
0
R 265.2625 1
0
0
0
1
1
0
0
S 271.2625 0
1
0
0
1
1
0
0
T 277.2625 1
1
0
0
1
1
0
0
U 283.2625 0
0
1
0
1
1
0
0
V 289.2625 1
0
1
0
1
1
0
0
W 295.2625 0
1
1
0
1
1
0
0
A-5 91.25 1
0
1
0
1
0
0
1
A-4 97.25 0
1
1
0
1
0
0
1
A-3 103.25 1
1
1
0
1
0
0
1
A-2 109.275 0
0
0
1
1
0
0
1
A-1 115.275 1
0
0
1
1
0
0
1
IMPORTANT!!
WARNING: Holland Electronics LLC does NOT represent this product to be
WATERPROOFED. To reduce risk of electrical shock, fire hazard, or damage to the
unit, do not expose to rain or moisture.
CAUTION: To prevent electric shock, do not use this plug with an extension
cord, receptacle or other outlet unless the blades can be fully inserted to prevent
blade exposure.
NOTE TO INSTALLER: This reminder calls the system installer’s attention to
Article 820-22 of the NEC that provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be connected to the grounding system
of the building, as close to the point of cable entry as practical.
WARNING:
TO PREVENT FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE
THIS UNIT TO RAIN OR MOISTURE
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HPM55
Audio Video
Modulator
（Channel：2 ~ W）
The HPM55 is a phase locked loop, single channel television
modulator providing Low, Hi, Mid and Super band
performance at an economical price. The HPM55 provides
55dBmV minimum output level from 54 to 300MHz. The
modulator is shipped with all internal adjustments preset and
FCC Docket 21006 offsets are standard. The unit conforms
to FCC Docket 21006 for frequency accuracy.
• 55 dBmV minimum @54-300 MHz
• PLL Controlled Frequency
• Excellent selectivity
• Front panel –30dB test point
• Rear panel auxiliary AC outlet
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