Radio comprehensive tester, comprehensive testing relay station tester, interphone tester, FM tester

FM FM walkie talkie integrated tester (radio frequency signal source function, power meter function, frequency meter function, sub tone measurement function)

Emission measurements

One frequency measurement 10MHz~900MHz resolution 1KHz or 0.1KHz

Two power measurement 0.1W~64W (greater power, please shorten test time and aVoid overheating)

3. sub audio measurement 50Hz~260Hz analog sub tone and standard digital sub sound

Two receive measurements

1. RF signal generator 1MHz--470MHz

2. output level: -132dBm to -90dBm

3. single tone modulation: 1KHz, 2KHz, 3KHz optional, output modulation system: 3K

Four sub tone output: 50Hz---260Hz analog sub tone and standard digital sub tone, output range: 0.5K

Three, relay test

Specially designed for debugging and measuring of U/V relay station and FM radio set.The signal generator can operate in duplex mode, i.e.The tested machine is in the firing state and does not affect the generator operation. It can be used in the relay station to transmit measurement.

Four , working voltage: 8-12V DC (DC)

Five , work current: 200mA

Walkie Talkie

Signal source mode:

The first line to the left Frequency0.5-470M) Right Output power-9Zero---131dBm)

The second line on the left Sub audio (50.0-280.0HzAny analog sub tone and105Group number sub tone) Right Modulation tone1-3K) The lower right corner shows the input power

Numeric key: direct entry for cursor entry

Up and down key: step by step, adjust cursor to project value

F1Key: cursor pointing movement(long press switch to frequency meter mode)

F2Key: backspace key

F3Key: function key The cursor points to the output power, sub tone, and modulation tone Function as loop switch Example: when the cursor points to the power output The function of the key is the output of the cycle switch signal.

F4Key: Unused

Analog sub tone settingsDirect input sub audio point4digit,not enough4Bit anterior complement"0"Cases88.5Hzinput0,8,8,5

Now, if you use the up and down key, the0.1HzStep adjustment, if required, by standard50Group tone adjustment to input0,0,0,ZeroAfter using the up and down key, the adjustment will proceed from the first standard sub tone67HzStart adjusting.

Digital sub tone settings:input3Digit bit tone code According to theF3example023First input02ThreeThen pressF3The settings are successful. PressF2Keys can be in digital sub toneIandNSwitch between the upper and lower keys105Addition and subtraction in group numbers.

The value of the modulation tone and sub sound input0 Equivalent to shutting down.

Step frequency setting:When the cursor points to the frequency, press longF3The currently displayed frequency is saved as step frequency.

Cymometer model:

The first line to the left frequency Right Measurement modelAUTO/MANUA(to be able to simultaneously measure the emission sub tones of a walkie talkie or relay station, please selectAUTOMode

The second line on the left Sub audio Right Frequency resolution1K/0.1K) to test the frequency of the transmitter or relay station, the frequency is graceful0.1kWill be more accurate) The lower right corner shows the input power

Numeric key: Unused

Up and down key: Unused

F1Key:Long press to switch to signal source mode

F2Key: Unused

F3Key: frequency meter resolution switching1K/0.1K

F4Key: measurement mode switchingAUTO/ MANUA AUTOWhen the stable frequency is detected, the sub tone is automatically locked and detected, and the results are displayed until the signal disappears, and the signal disappears and continues to be re tested, waiting for the new stable frequency. (you can detect the standard and nonstandard analog tones of your own radio station. If the radio is a digital sub tone, only the standard digital sub tone can be detected, and the nonstandard digit sub tone can not be detected.)

MANUAConventional frequency meter Real time detection update frequency.

Note: at any time, as long as the input power, the lower right corner shows the input power.

Size: 160*160*65mmIncludes a prominent part)

afterHP8921ARadio comprehensive test instrument calibration:

1. Frequency accuracy is deviation50Hzwithin

2. vThe intensity of the output signal of the segmentHP8921AQuite

3. USegment output signal strength ratioHP8921A4DBM (when the output of a weak signal is better than this, when the instrument shows -125dbm, the actual value is -121dbm), and the strong signal output is the same as that of HP8921A (for example, about -90dbm)

4. The audio modulation system for the output of the signal is3K

Five The sub tone system in the signal output is0.5K

Six When the frequency meter function, the minimum power input required is 1MW (external antenna, 1W interphone can be measured by close distance launching)

7. power meter in0.2WAbove heelHP8921AYes, less than 0.2At W, the display value is about 20% larger than the actual value (estimated to be 4 to 5).

8. to test the power of more than 5W appropriate to shorten the testing time, avoid testing power for a long time, because the heat inside the board size is limited, to avoid overheating, if you really need to test the power for a long time, please increase the heat sink area and forced cooling fan.