|HOME > PROMAX > PROMAX > PROMAX-4|
Promax Promax-6 Shown
The PROMAX4, PROMAX5 and PROMAX6 analyzers are designed for the installation and maintenance of television signal reception and distribution systems. They are especially suited for cable television systems, since they integrate all the basic functions required for signal analysis in an easy-to-use, accurate, and low-cost device.
While the PROMAX-4 offers coverage of all television channels between 45 MHz and 862 MHz, the PROMAX-5 and 6 also cover the return channels (5 MHz to 862 MHz). All models enable the signal level to be measured with high accuracy.
PROMAX 4-5-6 incorporate a series of functions for evaluating the image quality, and include a calculation of the Video/Audio (V/A) ratio and the Carrier/Noise (C/N) ratio in the Channel (Patented Method). In addition to providing all of these functions, the instruments weigh just half a kilo. Every detail has been carefully studied in order to achieve optimum balance between the characteristics and their functionality. The result is an easy-to-use device with advanced functions that can be operated by non-specialist personnel.
three instruments have a dynamic range
from 20 dBµV (-40 dBmV) to 120 dBµV (60 dBmV). In order to achieve a direct
reading of the signal level, the measurement is automatic and the device itself
selects the input attenuator most suitable for each signal. In applications for
which a value must be set for the attenuators, the Manual mode may be used. The
units may be displayed in dBµV or in dBmV.
A rotary selector allows any one of the three tuning
modes to be selected: Frequency, Channels or Programs. The Frequency mode
allows you to tune into any frequency between 5 and 862 MHz (between 45 and 862
MHz for the PROMAX-4) with a resolution of 62.5 kHz.
The V/A ratio indicates the relationship between
the level of the Video carrier and the Audio carrier. There are certain optimum
values for each standard. Very often, the audio carrier levels are
not checked when the installation takes place. Sometimes it is taken for granted
that it is enough to check the demodulated audio signal, but it should be noted
that an unsuitable V/A ratio may cause interference in the video.
Carrier/Noise Measurement is another factor in evaluating the signal quality. The C/N function measures the ratio between the carrier level and the noise level. PROMAX has developed and patented a method for calculating this ratio in the channel in which the measurement is made. It is not rare that a signal with a higher carrier level than another may have a lower C/N ratio, so this measurement is essential.
The PROMAX-4, -5, and -6 have been designed according to the requirements of the European standard on electrical safety, EN61010-1. The recommendations regarding the level of protection against water and dust in the outside materials have also been taken into account and incorporated to level IP21. As with all PROMAX devices, they also comply with the regulations on electromagnetic compatibility, EN55014, regarding radio interference.
A highly efficient speaker allows the demodulation of FM or AM audio. They also include a tone that is proportional to the signal level. In addition, it is possible to select the audio carrier frequency anywhere from 4 to 9 MHz, so that the device can be used for making measurements with any television broadcast standard.
|PROMAX-4||Promax PROMAX4 Cable TV Analyzer|
|PROMAX5||PROMAX PROMAX-5 Cable TV Analyzer including return band.||Discontinued|
|PROMAX6||PROMAX PROMAX-6 Cable TV Analyzer including analog and digital measurements.||Discontinued|
|AA-012||Promax AA-012 Car Supply Cable for PROLINK-1b/PROMAX-4/5/6/8+/10/MC-160B/360B/PROLITE||$30.00|
|AD-055||Promax AD-055 F/F - BNC/f Connector Adapter for PROMAX-4/5/6/8+/10||$11.00|
|AD-056||Promax AD-056 F/F - IEC/f Connector Adapter for PROMAX-4/5/6/8+/10||$11.00|
|AD-057||Promax AD-057 F/F - F/F Connector Adapter for PROMAX-4/5/6/8+/10||$11.00|
|AD-058||Promax AD-058 F/M - F/h Fast Connector Adapter for PROMAX-4/5/6/8+/10||$11.00|
|AL-022||Promax AL-022 US Power Adapter for PROMAX-4/5/6/8+/10, PRODIG-2 and RP-110B||Sale $23.86
|AL-032||Promax AL-032 UK Power Adapter for PROMAX-4/5/6/8+/10, PRODIG-2 and RP-110B||Discontinued|
|AL-042||Promax AL-042 Australian Power Adapter for PROMAX-4/5/6/8+/10, PRODIG-2 and RP-110B||$30.00|
|AL-052||Promax AL-052 Japan Power Adapter for PROMAX-4/5/6/8+/10, PRODIG-2 and RP-110B||$30.00|
|CB-038||Promax CB-038 NiCd Rechargeable Battery 7.2V-0.8A for PROMAX-4/5/6/8+||$77.00|
|CB-410C||Promax CB-410C NiCd Battery charger for PROMAX-4/5/6/8+||$524.00|
|DC-284||Promax DC-284 Antichock rubber protector for PROMAX-4/5/6/8+/10||Sale $28.64
|RM-006||Promax RM-006 Programming Pack for Channel Plan, Measuring Units, etc for PROMAX-4-5-6||Discontinued|