On 29 January 2011 16:07, Dave G3WCB. <[email protected]> wrote:

Hi, Roger.

 

Nothing seen from you so far today, or overnight last night. I'll leave the RX running until Sunday night.

 

73, Dave G3WCB

-----Original Message-----
From: [email protected] [mailto:[email protected]]On Behalf Of Roger Lapthorn
Sent: 29 January 2011 12:50
To: [email protected]
Subject: LF: 137.5kHz WSPRing - reports appreciated

Hi All,

Working on my 137.5kHz QRP transverter and will be TXing and RXing on 137.5kHz WSPR on and off during the weekend, so I 'd appreciate any reports. There are not that many people looking on 137.5kHz WSPR (136kHz USB dial) within my range, which is around 50-150km maximum.

At the moment I'm combining the RX preamp with the TX part of the transverter and optimising the combination. I use the RX part "straight through" via a tuned preamp using the FT817 in split mode RXing on 137kHz. This simplifies the design and should avoid relays or TX/RX switches.

73s
Roger G3XBM

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