[Elecraft] EME Radio - 144mhz Transverter or 2m Module

[Oliver Dröse]

Hi Rich,

don't know the external one (XV144) myself so cannot comment. The 
internal one (K144XV) has one drawback: no adequate cooling! Cooling is 
done only passively using the left side of the enclosure. As JT65 on EME 
is a key-down mode you will see that power drops soon and dramatically, 
i.e. starting with 10 watts it will drop down to 5-6 watts after 2-3 
overs already due to missing heat dissipation. So you will want to do 
some external cooling to lessen that effect (but you will not completely 
get rid of it from my experience).

Besides this the K144XV is very sensitive, whenever I use mine I switch 
off the external pre-amp which is needed for all other transceivers 
overhere. :-) And don't forget to order the K144RFLK to keep the 
frequency stable.

What you should also consider is which amplifier you want to use. So the 
XV144 might be the better solution if you need more drive power. If you 
want to think outside the box you can also check other manufacturers. 
For serious contesting and EME I'm using the HA1YA transverter ME2HT-PRO 
with +30 dBm mixer 
(http://www.ha1ya.hu/htmkepek/me2t_protransverterspec.htm) and 60 watts 
(including adequate cooling) to drive a GS35 amp.

HTH - hope that helps!

73, Olli - DH8BQA

Contest, DX & radio projects: http://www.dh8bqa.de


Am 30.08.2014 14:26, schrieb Richard Thorne:
> I'm starting to get the bug to try something different and EME has 
> grabbed my attention.
>
> I already have a couple K3's and would like to put one to use for 
> EME.  Which is the better option the external 144mhz transverter or 
> the internal 2m option?
>
> Thanks
>
> Rich - N5ZC
>
>
>
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