HP363
I. Overview:
HP363 is a radio frequency power meter, the meter completes the operation by pressing the keys, the advantages: simple structure, easy to use, stable performance, reliability, high sensitivity and fast measurement speed.
2. Application:
¡Ü RF power measurement;
¡Ü Meter calibration;
3. Technical parameter table:
No. Item Parameters Unit Remarks
1 Measuring power range -50¢¦+0 dBm (External RF attenuator can be extended to 100dBm)
2 Measurement power resolution 0.1 dBm
3 Measuring frequency range 1¢¦10000MHz
4 Measuring power 1nW¢¦1mW
5 Working voltage 7¢¦12 VDC
6 Working current <50 mA
7 Working temperature -40¡É¢¦65¡É Celsius
8 Storage temperature -40¡É¢¦65¡É Celsius
9 size 55*45*10 mm length X width X height
4. Interface display and operation instructions:
(1) Unit description: dBm;
(2) Key description:
FUN: function key; MODE: change interface; SEL: self-add key or self-decrease key;
4.1, display measurement data
Interface display font:
The first line "RF-POW -51.2 dBm"
The second line "610uV 7nW"
Note: Display the signal dBm value, input voltage value, and input power respectively.
4.2. Set the RF power attenuation value
Interface display font:
The first line "RF Attenuator"
The second line "SUB 000dB"
Key operation:
FUN: Function key; (select the direction of addition and subtraction) Display SUB for subtraction, display ADD for addition. (Long press the FUN key to save the set dB value)
SEL: Self-adding key or self-decreasing key;
Note: Connect different RF power attenuators and set the corresponding attenuation coefficient to read out the correct power parameters.
Five, wiring
P1 wiring definition:
No. Symbol Meaning
1 The positive pole of the power supply of the VDD module (7V~12V)
2 GND The negative pole of the power supply of the module
P2 wiring definition:
No. Symbol Meaning
1 FX is not used
2 RF radio frequency signal input
3 GND Power negative
annotation:
First of all, dB is a pure counting unit: for power, dB = 10*lg(A/B). For voltage or current, dB = 20*lg(A/B). The meaning of dB can't be simpler, that is, a very large (followed by a long string of 0s) or very small (a long string of zeros in front) is expressed in a short form. like:
X=1000000000000000 (15 zeros in total)
It can be expressed as: 10lgX=150dB
X=0.000000000000001
It can be expressed as: 10lgX=-150 dB
dBm defines miliwatt (milliwatt). 0 dBm=1mw;
dBw defines watt. 0 dBW = 10lg1 W = 10lg1000 mw = 30 dBm.
By default, dB always defines the power unit, which is calculated as 10lg. Of course, in some cases, signal strength (Amplitude) can be used to describe work and power. In this case, use 20lg as the meter. This applies to both the control field and the signal processing field. For example, sometimes you can see the expression of dBmV.