Harris Stratex Microwave 6ghz Spa Pa Rf Junk

US $150

  • San Jose, California, United States
  • Jan 29th
7GHz Receiver out of a microwave radio P/N 131-142039-001 6" x 6" x 3/4" thk It is working and come with a 14 day warranty. Shipping to the US is $6. $16 for the rest of the world. I will combine auctions to lower shipping costs. 6.1 MMIC Gain Stages The input of the PA consists of a pad (whose value depends on the PA version); this pad can be adjusted to provide different gain levels for the different versions. Note that the input RF trace, being on the FR-4 bias card, provides some unintentional attenuation which must be rolled into this input attenuation. Following this padding is a small, inexpensive, self-biased MMIC and a larger power MMIC. 6.2 FET Gain Stages The number of gain stages depends on the PA version/power level. The LPA has two FETs (4.8mm) in balanced. Each FET is biased in its own bias loop; this stage is present in the SPA as well. The SPA adds an output stage which consists of a balanced stages (6.0 mm FET), for a total of two devices in the output. Each FET is biased in individual bias loop. The HPA consists of two stages of FETs; driver stage and power stage. 6.0 mm FETs were used on each stage. Driver stage is a balanced stage combined in phase with Lange couplers. Output stage is two balanced stages combined inphase with Lange couplers. Six of these devices are used and biased in individual bias loop. PA DC Connector Pinout Pin # Description To/From Type 1 VTEMP PA to Tx 0-3V, 10 bits ADC 2 NC spare 3 NC spare 4 NC spare 5 GND GND 6 GND GND 7 GND GND 8 +12V Tx to PA DC 9 GND GND 10 +12V Tx to PA DC 11 GND GND 12 +12V Tx to PA DC 13 BIAS_ADJ_3 Tx to PA 0-3V, 10 bits DAC 14 +12V Tx to PA DC 15 BIAS_ADJ_2 Tx to PA 0-3V, 10 bits DAC 16 +7V Tx to PA DC 17 BIAS_ADJ_1 Tx to PA 0-3V, 10 bits DAC 18 -5V Tx to PA DC 19 GND GND 20 +5V Tx to PA DC
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. ...
Country of Manufacture United States

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