TNX for info, Genosse Stefan! -)
Why you use battaries for TX, not a compact motor-generator?
> Roman, ULF,
>
> Some more thoughts. This distance is in the far field for frequencies
> down to 870 Hz. In my view, it is out of the range of 'local tests'.
> Think about the GHz guys operating above 100 GHz. They deal with the
> same distances and spend the same efforts and money :-)
> It and it is my goal to go down as deep as possible. It is a pleasure to
> work with this type of antenna and i can already see that it outperforms
> my large inv-L below 3 kHz. The ease of use is fascinating. You don't
> need a coil to resonate it and you don't need to hande high voltages
> (although i like high voltages :-) ).
> For this antenna, the limiting factor is the TX power and time! I need
> to transmit from batteries and stay there during the transmission, so i
> can't run a carrier for weeks. But i could apply 2 kW! :-) So far i
> managed to apply 255 W (RF) and the goal is to reach 500 W.
> In a next step i need to improve the RX site since the small loop
> becomes quite deaf below 2 kHz it seems.
>
> 73, Stefan
>
> Am 04.09.2018 08:18, schrieb DK7FC:
>
>> Hello Roman,
>>
>> The distance between RX and TX is 55.6 km in all these experiments,
>> also on 2970/2470/1970 Hz. The report for 1570 Hz (the 191 km band)
>> will follow today.
>> Unfortunately this loop has its minimum pointing to Russia and the ERP
>> is very low so it is most unlikely to receive a signal from this antenna.
>> But the ongoing transmissions on 17.4701 kHz could be received
>> relatively easily in 3000 km distance.
>>
>> 73, GD DX,
>> Stefan
>>
>> Am 03.09.2018 23:37, schrieb Roman:
>>
>>> GA Genosse Funkamateur Stefan!
>>>
>>> Vielen dank!
>>> MNY TNX for info!
>>>
>>> Tell me pse, whats QRB on your DFCW-90 experiment and on 2970|1970 Hz?
>>>
>>> Best DX in your experiments!
>>> All russian LF looking to your experiments! -)
>>>
>>> 73!
>>> Roman
--
73!
Roman, RW3ADB
|
