| VK3NX Australian Amateur Radio Station |
| 13cm EME |
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| Equipment on 13cm - A homebrew transverter based on the DEMI board is used for 2300-2304 MHz. - The VK band is 2300-2302 MHz. We also have a band at 2400-2450 MHz. The agreed segment for EME is 2301.900 - 2302.000 MHz. - The LO is a homebrew design and is reflocked to a 10 MHz GPS derived signal using a "VE1ALQ" PLL. - IF frequency is 144 MHz. -The amplifier in use is a Spectrian amplifier running at a "cool" 120 W - LNA is a 'WD5AGO" preamp with 26 dB of gain and a claimed Noise Figure of 0.55dB. - Dish feed is a scaled version of the "RA3AQ" optimised septum feed. I have built it out of copper sheet (diam. 0.5mm) Cross-Band Capability - The tunable IF is usually an IC-746 or an IC-820. Both these radios tune to 174 MHz with no noticeable / measureable difference in Rx sensitivity. As such with the 1 transverter I can Rx on the different worldwide allocations at: 2300 MHz 2304 MHz 2320 MHz By using a switching arrangement in the Rx path, my 2400 MHz "terrestrial" transverter can be used to listen to the 2424 MHz JA segment |
| Audio Clips from 13cm EME: |
| Stations worked on 13cm: |
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| All contacts via CW unless otherwise noted. |
| Sun Noise = 12.2 dB with SFU = 70 Moon Noise = 0.35 @ Apogee CS / Gnd = 5.7dB |
| VK3NX - ECHO |
| DL4MEA |
| OZ4MM |
| WD5AGO - 73'S |
| JA4BLC - CW |
| JA4BLC - SSB |
| RW1AW SSB 2008 ARRL |