30W Class A Linear RF amplifier 2.3-2.45 GHz 2304 ATV +
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Click to View Image Album This is for one very linear Class A RF amplifier which I have removed from a new Spectrian high power Amp where it was used for driver for the main PA boards. This sale does include the 24v 80ma bias supply as suggested below at no cost to you. This amplifier has been selected, setup and tested for an output power of 30W from 2.3GHz to 2.35GHz with a linear gain of 35dB. Great amplifier for CW,AM, FM, ATV or SSB use from 2300MHz to 2350 @ 30W and to 2450MHz @ 25W. Input power for 30W output is typically 10mW or less! I have attached a plot of power vs frequency. The upper left reference tick marks the 100W (50dBm) point with 5dBm / vertical division. Frequency is 50MHz / division. Input drive for this example was 7.0dBm. Power requirement is 13-14V @ 10A and + 18 to +28v bias @ 50Ma. This bias is used for the gate voltage circuit on the power control FET. I do supply a miniature regulated DC-DC converter with this sale which takes 12-15v input with an output of 12v @ 85ma for generating this bias voltage by putting the isolated output in series with this 12v input voltage. There is a logic level enable pin which requires grounding to enable power to this amplifier and can be used for a PTT/KEY control. The connector also has a direct temperature output pin with the function 10.0mV/degree F which measures the board temperature close to the 30W RF output GaAs FET (NEC S2527-30). Note that the output of this amplifier is protected by an internal 125W isolator! Here are the pin functions for the DC bias connector: Pins 1,2,3,4 are all +12 to 13Vdc @ 7.5 or so amps. Pins 5,6,7,8,10 are all ground. Pins 12,13 are N.C. Pin 11 is Logic level Low enable, normally floats high. This turns on the +12v to the internal transistors. Pin 14 is + 26V bias supply input @ 50Ma. Pin 9 indicates temperature = 10mV/degree F. This board comes mounted on a 1/4 inch thick aluminum heat spreader which has 6 mounting holes for mounting to a heat-sink. I am also suppling the 2 MCX .086 hard-line sections as well as the mating bias connector as shown. You will find it very easy to remove one of the MCX connectors from one end of these and replace it with a SMA .086 hard-line connector. Board dimensions are 6.5 x 4 inches. (I also have some of the complete 180W Spectian amplifiers available and will start a fixed price sale for you by request. Please call [phone removed by ] to request an sale if not currently on sale.)
Florida buyers must add 7% (or actual amount for your county) sales tax or mail me a signed photocopy of your Florida Resale Certificate with your payment!I do combine sale winnings when ever possible to save buyers money. I do ask that buyers help keep track of any sale shipments they want to combine and email me for a total when they are ready. Fixed Priority S&H quoted prices are for 50 USA states.International buyers pay actual S&H.Good luck offerding! KI4NPV 407-767-5119 PaymentI accept the following forms of payment:
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