Agilent / HP E8285A        Amtronix Instruments, Inc. 716-763-9104              Amtronix Instruments, Inc.
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E8285A - Full 0.4 MHz to 1000MHz operation
Refurbished with option 102 (spectrum analyzer/tracking generator)-$950.

      Here is the Agilent / HP E8285A unit. This unit was originally made for CDMA testing but it makes an excellent Service Monitor. For this low price, you get a quality instrument for hobby or professional radio testing. This is our "Poor Mans Service Monitor". These units generate and receive AM, FM accurately from 0.4 to 1000 MHz. Other features and screen pictures are listed below. These units are tested for generate and receive accuracy. All self diagnostics pass. We include a NIST traceable calibration with data and a 180 day warranty.  Units are scratched, may have small dents but work fine. The displays are bright and easy to see but do have burns.. Feel free to request pictures of your individual unit. If you ever have a problem with your unit, we have all modules at low prices.
      These units operate from 400 KHz to 1000MHz. Some newer E8285A units operate only from 800 MHz and above because they have newer firmware and their input module was not factory calibrated the full range. These have the firmware that includes lower frequency operation. Most Agilent branded E8285A units with newer firmware can not be converted to 0.4 to 1000 MHz use because the factory did not calibrate the downconverter module for use below 800 MHz. These unts were tested for accuracy below 800 MHz. All units we sell are the original HP unit that were calibrated by the factory for 0.4 to 1000 MHz.
    It's a well built rugged design with an "electro-luminicent" display. This unit is similar but not exactly like the HP 8920B units. It includes similar features and screens like the : RF analyzer, AF Analyzer, RF Generator, TX Test, RX Test, Duplex, Encoder, Decoder, Spectrum Analyzer / Tracking Generator, Sinad and Distortion meters,  AC/ DC Voltmeter, Self Diagnostic Tests, and Configure Screens. and Oscilloscope.    
    Also included is a Power Meter for power up to 2.5 watts. You will need to add an external attenuator to measure higher power.  It has 2 AF generators useful for generating 1000Hz tone and CTCSS tones at the same time, 2 uV "off the air" sensitive receiver, AM, FM and SSB receive modes, 2.5 Watt continuous input power, antenna, duplex and RF I/O ports. It will save and recall screen setups with its internal memory. It uses the more common PCMCIA SRAM cards to install / remove data.
    Units now have the interior cleaned, include an NIST Traceable Calibration and 90 day warranty.

Differences between the E8285A and the HP 8920B
    Here are the main differences between the HP 8920B and the Agilent E8285A units. The E8285A does not have the following features found on the  8920B:
            1) The E8285A does not auto count the RF frequency on the RF Analyzer Screen and the 8920B does.
            2) The E8285A does have an encoder and decoder screen like the 8920B units but these screens do not include the DPL, LTR, EDACS or POSCAG                             functions found on the 8920B. The 8935 does encode / decode CTCSS and DTMF.
            3) The E8285A does not have a squelch control. The squelch can be operated in a "fixed" level or open.
            4) Only E8285A units with option 102 have the spectrum analyzer / tracking generator feature.
            5) Power input is limited to 2.5 watts. More power will require an external attenuator.
The E8285A has some extra's over the 8920B. The E8285A has spec'd. accuracy from 300KHz-1000MHz and 1.7GHz-2.0GHz.and works down to 0.1 MHz. The  E8285A has an "electro-luminicent" display that is much more visable in sunlight and has a longer life than the 8920 type CRT display. Most modules including the input module can easily be swapped from unit to unit because the cal data is included in the module and will auto read.

    Here are the HP / Agilent E8285A Screens. They are the  TX Test, RX Test, Duplex Test, RF Generate, RF Analyzer, AF Analyzer, Spectrum Analyzer, Spectrum Analyzer with Tracking Generator in use, Oscilloscope, Encoder and Decoder.

e8285a tx test display  e8285a rx test display  e8285a duplex
E8285A TX Test Screen                                            E8285A  RX Test Screen                                           E8285A Duplex Screen

e8285a rf generator screen  e8285a rf analyzer screen  e8285a audio analyzer screen
E8285A RF Generator Screen                                    E8285A  RF Analyzer Screen                                    E8285A AF Analyzer Screen

e8285a scope screen  e8285a encoder screen  e8285a decoder screen
E8285A Oscilloscope Screen                                     E8285A  Signaling Encoder Screen                             E8285A Signaling Decoder Screen

E8285A configure screen  E8285A spectrum analyzer  E8285A Tracking Generator
E8285A Configure Screen                                          E8285A Spectrum Analyzer Screen                            E8285A Tracking Generator Screen
Some of these pictures aren't the sharpest but it's easy to note that they are very similar to the 8920B units.
Using the E8285A Test Set
The E8285A Test Set has several screens for analog use. To access these screens, rotate the curser knob on the front panel until the curser is on the top most field known as the title bar. Select this field by pressing in the curser knob. With the field highlighted, rotate the curser knob and the different fields will scroll. To select one, stop on it and select it. The scroll knob can now be used to move the curser to different fields on te screen. Fields are changed by selecting the field and rotating the curser knob of using the keyboard to enter numbers / letters. To make the test set boot to the analog RF Generator field, your test set has this field saved as "POWEON". (in the save / recall menu) The analog section of the E8285A test set was removed from the units user manual but is is extremely similar to the E6380A unit. For more information on using the E8285A, it's suggested you download the E6380A Reference Manual and see the analog section  Reference Manual .

Differences between HP 8920A/B, 8924C, E8285A and HP E6380A

Set up your E8285A for Analog Radio Use

AA battery low warning modification

Capture the E8285A screen to your PC

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