Re: LF: A good night on 472

["Graham" <g8fzk@g8fzk.fsnet.co.uk>]

Ok Pete

 

Well  rx ae  site is  critical  , after the  'wall  of noise'   vanished  towards the  end of  last  year , 500  was  quite  usable , until  the  very end  that  was ..

 

I did experiment  with a  small  toroidal   near field  ae  and  could  see  the  beacons on  505 , though  at  a very low  level, the  s/n ratio was  quite  good , did  toy  with the  idea of  making a  pre-amp  , but  could  never decide if  it  was a  low or  high  z  feed ...

 

You only  have to  work  portable  to  appreciate  the level  of rf-noise  in a built  up  area  !  my  marine   hf-rx has a noise  source  to  enable the  pre-selector  to  be tuned , assumedly  in normal  use its  a little  quiet !

 

73 -G.. 

From: M0FMT

Sent: Saturday, January 05, 2013 10:03 AM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: A good night on 472

Hi Wolf and Graham

 

It was so nice to hear the band literally full of CW. And thanks for the info Wolf publishing your working conditions is very helpful. In my case I am interested in the RX side as well. I am currently using  on RX a 2m 7/8th whip at 50ft+- connected straight into my TS690s transceiver, have 500 / 250 filters fitted. Although signals are not strong they are all good copy and both sides of each qso was readable. The noise level was very low. If I use an open wire ant those signals I can hear are very strong but the far stations are lost in noise. So the noise I am getting is from the house  (mine and next door) low down. The whip seems mostly out of range of the worst noise. That may be of use to you Graham. However I know you are not the only one to suffer from the Xmas decorations at the moment. Also 472/9 seems a quieter part of MF than 501/4. The general noise floor on the SDR is lower but I don't know why.
 

73 es GL Pete M0FMT IO91UX

From: wolf_dl4yhf <dl4yhf@freenet.de>
To: rsgb_lf_group@blacksheep.org
Sent: Saturday, 5 January 2013, 0:45
Subject: Re: LF: A good night on 472

Hi Pete,

Thanks to all involved, and indeed it was a nice evening with almost no QRM this side (except from the 'primary users').
9H was again audible with his remarkable slow cw (but not QRSS) around 478.446 kHz.
Nice to hear / work GI, EI, GW, G, HB9, PA, SM, OK, and DL; all active tonight.
60 watts output from the TX seems to be sufficient here (about 1.5 A antenna current, wire between 7 and 11 m above ground, total length 60 m).

73, 
  Wolf DL4YHF .




Am 04.01.2013 22:42, schrieb M0FMT:

Hi all

 

A good night on 472

heard so far but not necessarily in that order >>>>>

 

sm6bgp

df0wd

g0min

gw4hxo

hb9asb

pe5t

and a couple missed

All very nice signals clear and well above the noise with me!

 

Oh and all on CW Tnx 73

 73 es GL es HNY Pete M0FMT IO91UX