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LF: G7NKS on QRSS 137.7

To: <[email protected]>
Subject: LF: G7NKS on QRSS 137.7
From: "James Cowburn" <[email protected]>
Date: Sun, 18 Jul 2010 19:59:09 +0100
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On 137.7 now QRSS10 ish

 

Running garage laptop driving TX via Wifi Remote connection from shack PC so a fusion of 137.7KHz and 2.4GHz!

 

 

 

 

With best regards

 

 

Jim

 

 

Dr. James Cowburn

E [email protected]

 

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From: [email protected] [mailto:[email protected]] On Behalf Of James Cowburn
Sent: 18 July 2010 19:49
To: [email protected]
Subject: RE: LF: 136.96kHz testing

 

Hi Roger

 

Well, with a 8m wire earthed at both ends as an earth electrode antenna I can get S5/6 sigs into G3XIZ who is 3km away, using his old CW TX with an output of around 60w.  No resonant coils, no HV issues.   OK so its not Dx but we manage 8wpm CW QSOs.  

 

You’ve shown what can be done with 500 and QRPp so lets see what can be done on 137.7

 

I will be QRSS10 on 137.7 later this evening, though if last night is anything to go by then all I’ll be doing is drowning in the static!

 

 

 

 

With best regards

 

 

Jim

 

 

Dr. James Cowburn G7NKS

E [email protected]

 

The information transmitted is intended only for the person to whom it is addressed and may contain confidential and/or privileged material. If you are not the intended recipient, you are hereby notified that you must not read this message.
Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited.  Consequently, this email is not intended to be contractually binding.
If you received this in error, please contact the sender, return the message as well as its attachments and delete the whole from any computer.


From: [email protected] [mailto:[email protected]] On Behalf Of Roger Lapthorn
Sent: 18 July 2010 19:09
To: [email protected]
Subject: Re: LF: 136.96kHz testing

 

Thank you Gary.

Yes, I hope to give 136kHz a good go considering my small garden and QRP leanings. Last autumn and winter I surprised myself (and others) by achieving credible results on 500kHz with an ultra-simple QRP station. It will be tougher on 136kHz certainly, but I start with low expectations that, with some perseverance, may be exceeded.

Next on the cards is the transverter design and build. There are plenty of good circuits to grab ideas from, plus I have some of my own. The efficient small antenna will be the really big challenge.

73s
Roger G3XBM

 

On 18 July 2010 18:51, Gary - G4WGT <[email protected]> wrote:

Roger,

 

Congratulations for Txing a 136 kHz signal, however small, don't let anyone put you off (no names mentioned) we all have to start somewhere. My first 136 kHz Tx was 5 watts & an 80m inverted V antenna, I didn't have any QSO's with that but it was a start.

 

You will make progress & I will look forward to Rxing your signal in the near future & a possible QSO.

 

73

 

Gary - G4WGT.

 

On 18 July 2010 17:14, Roger Lapthorn <[email protected]> wrote:

This is the very beginning of my journey onto 136kHz....

For anyone very very close to Burwell, Cambs, JO02DG, I'm putting a QRP 10wpm keyer-generated CW message (later to be changed to QRSS3) out on 136.96kHz CW into my earth electrode antenna. Power from the TX is about 500mW, so ERP is just a few microwatts at most. 

I'd appreciate reports, but be amazed to get any until I start to run some more power into a real antenna.

73s
Roger G3XBM


--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM    GQRP 1678      ISWL G11088

 




--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM    GQRP 1678      ISWL G11088

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