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From: "DEREK ATTER" <derek.atter@blueyonder.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <PAEFLMFGBDKKCONLMLBIGEPHCJAA.ganymede444@btopenworld.com> <002101c76bd6$91beea50$6401a8c0@derekm3uttnxf9>
Date: Wed, 21 Mar 2007 17:38:39 -0000
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Subject: LF: Re: Re: [500]  G3GRO QSO G3WCB  [Second attempt]
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Hi Dave, -  This is my second atempt to send this message, - For some reason 
the PC sent the first attempt before I had finished it!

Thanks for the QSO on the 600m band - it was my second QSO on 500kHz since 
receiving the NOV on Thursday, my first being on Saturday AM with Mal, G3KEV 
up in Scarborough.
  You were a strong "paint" when you were calling on QRSS when I called 
you - equivalent to around RST569/579 with some evidence of QSB.   I had 
been  listening to Dave G3YXM beaconing and moved HF about 500hz to avoid 
him when
 I called you and at the same time hopefully avoiding anybody replying QRSS 
directly on your frequiecy.  You were a good 10dB stronger than Dave G3YXM 
but quite a bit closer as you say.   I could hear Dave on the side when I 
opened up the RX pass band but I was using the 500hz filter in the FT1000MP 
plus DSP so he was not causing me any problems,

My crank-up 60ft Versatower is out of action due to a problem with the 
luffing wire and is lying horizontal  so I am currently using a temporary 
antenna consisting of long wire about 130ft long sloping gradually up from 
the feed point only 6ft above ground at the house end to 45ft at the far end 
of the garden. I am using 10W TX RF power output but probably less than 20mW 
ERP due to the poor antenna
  I am resonating the antenna with a variometer with a tapped matching 
auto-transformer in series to ground to provide a match to 50ohms.  The 
503kHz TX drive is derived from a 5.030Mhz output from the FT1000MP running 
in split frquency mode going via a 10 to 1 digital divider and bandpass 
filter to drive a 10W drive amplifier canibalised from a commercial ENI inc. 
high power wide band amplifier made for anechoic chamber testing. At the TX 
output is a 7 element elliptical low pass filter to suppress medium wave 
harmonics at 1.0Mhz and 1,5Mhz.
Thanks for your offer of copy of the screenshot of my signal - I am about to 
write a piece for our local Club newsletter on the new 500kHz band so it 
would be nice to have an example for the article.

Thanks again for the QSO

73,  Derek Atter  G3GRO  IO91VC,  Crawley West Sussex

--- Original Message ----- 
> From: "Dave G3WCB" <ganymede444@btopenworld.com>
> To: <rsgb_lf_group@blacksheep.org>
> Sent: Tuesday, March 20, 2007 10:27 PM
> Subject: LF: [500] G3GRO QSO G3WCB 503.500 kHz
>
>
>> Hi, Derek
>>
>> Thanks for standing by for 10 minutes while I had to go and do a bit of
>> family taxi-driving! I missed some of your transmissions because you were
>> co-channel with Dave G3YXM who is in beacon mode also on 503.0 kHz...and 
>> my
>> CW is a bit rusty too!
>>
>> You were a good signal in the clear on 502.2 when you called Dave a 
>> little
>> later on.
>>
>> I estimate your signal to be about 3db stronger than G3YXM, but I guess 
>> you
>> are quite a bit nearer to me. I can send you a "Spectran" screenshot if 
>> you
>> are interested.
>>
>> I'm running 10W to a 20m "Tee" at 5m high, which gives an estimated erp 
>> or
>> less than 50mW, given that the antenna is rather poor. My RX setup is a 
>> 500
>> kHz preamp into an ICOM IC-PR1000, which has quite a wide passband, and
>> isn't really suited to CW.
>>
>> Thanks for the QSO, and good luck on the band.
>>
>> 73, Dave G3WCB IO91RM (Iver near Windsor/Slough)
>>
>>
>>
>>
>>
>>
>> -- 
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>> Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 
>> 21/03/2007 07:52
>>
>
>
>
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>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
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> 21/03/2007 07:52
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