Wwii Military Radar Maintenance Test Set Equipment An/upm-1a

US $1,299.94

  • Aurora, Illinois, United States
  • Jan 29th
WWII Military Radar Maintenance Test Set AN/UPM-1A This test equipment comes with it's original metal dust cover. It was disassembled for transport, but was working when last stored. It weighs 155 pounds. Sounds daunting, but after removal of the front panels and lifting with the handles it is compact and easy to move.  Tube set is complete. Each part has a metal plate with the part number attached as shown. I have the front panels loosely installed for easy access to the inside. It looks as though there were some modifications made or perhaps replacements. The part numbers match up and this is how we made the identification. No plate was found indicating this model number. Below is what the declassified papers state about this piece of equipment. You can  see a copy of this along with further information such as the power input, frequency, signal type, and tube complement etc. in the photos. It is in 2 parts. It comes with all shown in the photos. The documentation shows other cordage attached to the front as well as other peripheral parts. Note, these does NOT come with this piece of equipment. What you see in the photo is what you get. It does come with it's power cord and dust cover. It does have some dust on it as shown. I cannot get in to clean the smaller crevices. It was obviously used in the field and shows sign of wear as expected for this type of equipment. Local pick up in the Chicago area. If you have a shipping company you work with I will be more than happy to accommodate them. "The AN/UPM-1A is a ground portable beacon and monitor test set used to test and monitor radar beacons and other equipment operating in the frequency range of 155-235 mc and 460-570 mc.  This test equipment may be used to measure or check transmitter frequency, power output pulse width and pulse shape; measure or check receiver sensitivity and band width; measure or check pulse shape at receiver output; give an indication of the approximate repetition rate of transponders; provide for beacon monitoring; and measure or check delay time in transponder or beacons. A 3-inch oscilloscope is used as an indicator and voltage-measuring instrument. The usual focus, intensity and centering control are provided by a linear sweep of 40, 200, or 2000 microseconds duration. Horizontal timing calibration is provided. Oscillators pulse radio frequency signals are provided in each frequency band. They may be synchronized from an external source or from an internal synchronizing generator. Wavemeters with separate diode detectors measure the frequency of either the internal pulse signal generators or external pulse radio frequency signals over the range of 155 to 235 mc and 460 to 570 mc. Antennas may be connected to the r-f jacks for monitoring permanently installed equipment. When connected in this way the voltage indicating detectors and frequency meters are actuated by both internal and external signals. The r-f jacks may also be interconnected with the equipment under test through a 6-foot cable and shielded diode head. The probe is provided with a detector for indicating peak voltages (or power) at the output terminals of the probe. Both sensitivity and power output of associated equipment may be measured. The equipment is mounted in an all-metal case with compartments provided for storing accessories and cordage." THANKS FOR LOOKING! ALL OF OUR LISTINGS ARE *PRIVATE*. NO ONE NEEDS TO KNOW WHAT YOU ARE BUYING BUT YOU! LESS THAN 5 STAR FEEDBACK IS UNACCEPTABLE TO US! LET US KNOW HOW WE CAN SERVE YOU BETTER!  ABOUT US- We are very friendly and easy to work with. If you have a  question, please do not hesitate to ask. If a problem does happen to  arise, we will work with you to correct it, rest assured. We are literally a "mom and pop" outfit, not a large company and enjoy  selling and buying here.  OUR AUCTIONS- We try and list most of our auctions in a "Buy It Now or Best Offer" format. We look for the fair market prices on our items and  then add the "or Best Offer" option on them. No bidding. No waiting. If your offer is accepted we ship out as soon as payment is received. CLOTHING- Our clothing comes to you smelling great, clean and ready-to-wear though you may have to iron as they may become wrinkled during shipment. Please note any imperfections listed and please look closely at the photos as they are the bulk of the description. 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We use the FedEx website to determine ACTUAL costs from FedEx.  INTERNATIONAL SHIPPING- We are more than happy to ship internationally  and will always try and find the least inexpensive way to ship. All items that ship from us must have a tracking number on them to make  sure they have arrived at their destination.   FEEDBACK- We will leave feedback for you as soon as you have left  feedback for us so that we know your item has arrived safely and you are  happy with your purchase.  THANKS FOR SHOPPING FREE TIME GOODS!
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes Was working before stored. Now untested.

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