144MHz

In October 2023 I gained DXCC award #227 for 2m - all QSO’s were via EME.

In May 2021 I changed the feed arrangement on my 144MHz XPOL EME array to transmit right hand circular polarisation (RHCP). Circular polarisation (CP) is frequently used for EME on 1296MHz and above, it’s not so common on 144MHz or 432MHz. The main advantage of CP compared with horizontal or vertical polarisation is that losses due to Faraday rotation are minimised but there is a -3dB penalty when one station is using CP and the other is using linear polarisation.

So far this year I have worked 3 new DXCC entities on 144MHz EME, bringing my total to 102. Once I’ve received the confirmations I’ll make an application to the ARRL for 2m DXCC.

• CY0S
• ZB2BU
• ZA/S59A

I recently worked KS but still need the following states to complete WAS on 144MHz EME - NV, OK and VT. If you're active in any of these states, or know of anyone who has 2m EME capability please contact me via the email address on my QRZ.COM page to arrange a sked.

During 2022 I worked 5 new DXCC entities on 144MHz EME, bringing my total to 99. Just need a couple more confirmations to make my DXCC application.

• PJ4MM
• 0J0DX
• D2TX
• J28MD
• ZC4RH

Background

Elecraft announced the K4 transceiver in May 2019 and I saw the radio at Ham Radio, Friedrichshafen in June 2019. I placed an order for a K4D (with an optional K4HD should I need it), in July 2019. Units started shipping in November 2020, maybe delivery will be Q1 2021?