Topband: R: Re: RDC TL8AA

[alfeo...@tin.it]

Thanks Jim for the suggestion.

The signal was very weak and heavy static during the last night, just 
few qso in log. We just finish to install a DHDL beaming NW, hoping it 
will help.


We will try FT8 first to check and if the signals are strong enough we 
will switch to CW.


Our transmitting frequency is 1826 and I will listen up to 1832. Please 
be aware that in the range 1829.5 to 1830.5 we have noise and it is 
worthless to transmit there.


Best 73, Alfeo I1HJT


   -- Messaggio Originale --
   Da: j...@audiosystemsgroup.com
   A: topband@contesting.com; alfeo...@tin.it
   Inviato: mercoledì 16 novembre 2022 20:35
   Oggetto: Re: Topband: RDC TL8AA

 Hello Alfredo,

 The MOST IMPORTANT things to know about propagation on 160M are:

 1) Propagation on 160M has a strong peak for 30-45 minutes on the 
DAYLIGHT side of sunrise and sunset. The peak lasts about one hour on 
80M and 2 hours on 40M. I suspect that it is also present on 30M.


 2) Propagation on 160M  often acts very much like the sun peeking 
through clouds drifting overhead.


 3) Experienced DXpeditioners have learned that very strong propagation 
on 160M usually happens on only one or two nights of a 2-week 
expedition, so it is critical to be on the air through the hours of 
darkness and for that 30-45 minutes of daylight on both sides. AA7JV 
thought this was so important that he developed a transmitting diplexer 
and RX antenna filters so that his trips could be simultaneously active 
on both CW and FT8 during these hours every day.


 73, Jim K9YC

 On 11/16/2022 4:59 AM, alfeo...@tin.it wrote:
 >
 > Hi Guys, the propagation is very good on the high bands therefore 
the

 > low bands are almost dead.
 >
 > We made some test last night on 160m FT8 and just few qso with very 
weak

 > signal.
 >
 > We would like to make some test on 75 - 160m CW as per the following
 > schedule (GMT time, depending on conditions)
 > - Our sunset today at 04:30 - 05:30 PM (at our latitude the switch 
time

 > light to dark and vice versa is very short)
 > - Tonight at 09:00,   10:00,  11:00 PM
 > - Tomorrow morning  at our sunrise 04:00 - 04:45 AM
 > We might test FT8 as well.
 >
 > Based on the result we will plan actions for the next days.
 > Hoping to have you all in log.
 >
 > Alfeo I1HJT
 >
 > I.D.T. member TL8AA - TL8ZZ crew
 > _
 > Searchable Archives: http://www.contesting.com/_topband - Topband 
Reflector


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Topband: RDC TL8AA

[alfeo...@tin.it]

Hi Guys, the propagation is very good on the high bands therefore the 
low bands are almost dead.


We made some test last night on 160m FT8 and just few qso with very weak 
signal.


We would like to make some test on 75 - 160m CW as per the following 
schedule (GMT time, depending on conditions)
- Our sunset today at 04:30 - 05:30 PM (at our latitude the switch time 
light to dark and vice versa is very short)

- Tonight at 09:00,   10:00,  11:00 PM
- Tomorrow morning  at our sunrise 04:00 - 04:45 AM
We might test FT8 as well.

Based on the result we will plan actions for the next days.
Hoping to have you all in log.

Alfeo I1HJT

I.D.T. member TL8AA - TL8ZZ crew
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: 9Q0HQ

[alfeo...@tin.it]

 Dear friends, we are doing our best effort on the low bands. Being at the end 
of the rain season, there is a storm almost every day in the afternoon.The soil 
here is very dark and moist, often we need to tune the high band antennas as 
the resonance shifts according to water content.On low bands the noise from 
static is high, 7 - 9 on 80 and 160. It is a little better when we are close to 
the sunrise.On top band we use a inverted L and on 80m a vertical with a 
parasite reflector.We have the feeling that ous signal is strong enough but the 
major problem is our capability to cautch the signals out of the noise. We used 
a DHDL for few days, no big help. Yesterday we change with a Diamond, no better 
result. We still use the verticals on receiving as it grants the better result 
in spite of the noise.I am afraid that a beverage would not help us due to the 
soil propriety. Also, there is no enough room to lay a 200m beverage.We are 
rather limitaded in resources (wires, cables) as it
  is no easy and fast to find the stuff locally.I kindly ask for your 
suggestion to improve our receiving capability.
Best 73
(sorry for my bad English!)
Alfeo I1HJT 9Q0HQ crew



   
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