Note that the PLL reference is the same between RX and. TX, only the PLL programming alters ... Watch Olympics. Fog Clears 2100z. QSO at 2244.Temp -3.5C!
A 134GHz Dxpedition to England Meg Robinson N2NQI, M0FRE Dave Robinson WW2R, G4FRE
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History
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1. Had the first UK QSO on 145GHz in 2001 2. 145GHz band now lost in UK, but have now got 134GHz 3. Challenge to try for the 1st 134GHz QSO 4. Acquired an apartment in IO82UC with EXCELLENT takeoff to East. NO takeoff to West. 5. Started building gear after being inspired at MUD 2005 6. Gear not finished by Xmas UK visit, so next chance was to try on my “Birthday” trip to England in February
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M0FRE QTH
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3D view
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Takeoff West
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Takeoff East
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Path IO82UC to IO82XC
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134GHz Rx Block Diagram
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134GHz TX Block diagram
NTMS Microwave Society
Note that the PLL reference is the same between RX and TX, only the PLL programming alters
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Original DB6NT 145G Xverter
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Modified Xverter for 134G
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Verticom Brick
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52.5MHz REFERENCE
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Schedule
NTMS Microwave Society
• Feb 16: Arrive at apartment. Hook up z3801 reference, start survey. Suitable condx • Feb 17: Suitable condx. Z3801 still locking • Feb 18: GPS survey completes in evening; (west blockage caused slowness). Suitable condx • Feb 19: Early thick fog! Go for scenic coffee. Watch Olympics Fog Clears 2100z. QSO at 2244.Temp -3.5C! • Feb 20: go to Airport!
• G4FRE/P IO82XC 61m ASL FT817+XVERTER. 10MHz Rb REF. 0.25m dish with WR8 Cassegrain feed. Dish aligned using telescopic sight. (M0FRE located alongside a 10th century Priory which is illuminated at night.)
QSO COMPLETED AT 2244 ON 19 FEB. 539/529 REPORTS. 17.73km
The synthesiser is at the top of the picture, with it's PIC loader board on top. Firmware is ... I then fitted the board into the block, which is held down by the two.
transverter has a frequency offset and has temperature variations. ⢠GPS locking to Z3801A will eliminate these problems. ⢠A DFS at 94.667MHz can be doubled ...
19 Colour with photography. 20 Typographic style .... photography explores different aspects of what real, fun ..... National Maritime Museum Cornwall. Reebok ...
and local oscillators used in the detection of moving tar- gets in such ... -30°C to +70°C. However, for higher operating temperatures, please contact the factory.
frequency, a correction factor (in +dB) is shown on the label ... correction factor is added to the power meter reading to yield the value of true ... 1% duty cycle.
performance. ENR outputs of up to 35 dB allow detection of receiver decenoration and developing faults. In addition to the standard product line of system Noise ...
be done only with the help of a magnifying glass of at least 4 dioptres. .... HF-PCB ist üblicherweise mit 2-Komponenten-Silberleitkleber eingeklebt und wird bei ...
Chip '5 \ ~-._ to \ ~. - PHOVEN RELIABILITY h ,2 .0 at âs. a. . 2 \Lu. 'ii'; DESCRIPTION 3 9 new ~., .'I. I The NEBOUt AND NEeooz are medium power GaAs FETs.
This makes copying of weaker SSB signals quite difficult. The blame for this effect can be laid directly at the door of the crystal itself. I have been pursuing a cure ...
The downconverters have conversion losses ranging from. 6 dB in K-Band to 8 dB in ... A calibration curve is supplied that allows accurate absolute power ...
O Large Gate Cross Sectional Area for Rugged IST. -1.60 $ 0.08 DIA. 0.25 (0.01) ... equipment transients and Inductive pickup. Ground-. Ing of equipment and ...
Fujitsu recommends the following conditions for the reliable operation of GaAs modules: 1. The drain operating voltage (VoD) should not exceed 8 volts. 2.
1.0 WATT GaAs FET. MSC 88004 ... GaAs Field Effect Transistors employing the latest .... Dimensions in inches for 0.025 inch thick Alumina (A1,0) substrate.
The HP 8900C is an economical analog meter calibrated in watts and. dBm. The analog display with its large. easy-to-read scale makes it si ple to peak or null ...
