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Date: Thu, 10 Dec 2009 10:19:21 +0100
Message-ID: <38A51B74B884D74083D7950AD0DD85E828ABE4@File-Server-HST.hst.e-technik.tu-darmstadt.de>
In-Reply-To: <57a24ca70912090730q682ffc79g7ffa9582e0cc40fa@mail.gmail.com>
Thread-Topic: TX-2200A
Thread-Index: Acp45V0xXH9jYfyyTCub+PZ5maAOjQAkfivw
From: =?windows-1258?Q?Stefan_Sch=E4fer?= <schaefer@hst.tu-darmstadt.de>
To: <rsgb_lf_group@blacksheep.org>
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Subject: LF: AW: TX-2200A
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Reply-To: rsgb_lf_group@blacksheep.org


Warren, LF,=20
Tnx for the info!=20
I am not "afraid" that now many OMs come on the band who just bought their=
 rig, like on HF. Even if you could buy a loading coil, you never will get=
 qrv satisfactorily cause you always have to consider many things like the=
 earth, the local noise reduction, the impedance transformation to 50 Ohm=
 and so on.
These OMs, even if they could buy a automatic tuner (that would not be eas=
y to create as a commercial product) for LF, would be frustrated soon caus=
e there are no contests and no 100s of stns calling on the band ;-) They=
 would say "LF is dead, just nerving qrm" and would never get the fascinat=
ion that we all experience.
Finally I don't understand why this PA has just 100W. To reach 1W ERP, mos=
t LFers have to apply 1kW and more, so 100W is QRP on LF ;-). 1kW can easi=
ly be reached on LF without using expensive special transistors and driver=
s and ferrite cores. E.g. with one simple IRFP360 we can built a 1kW high=
 efficiency calss d or e PA that costs not even 50=80...
These difficulties to get qrv is one part of the LF hobby and if they are=
 solved, one can be glad even without doing 100s of qsos in one evening :-=
)

Stefan / DK7FC
-----Urspr=FCngliche Nachricht-----
Von: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacks=
heep.org] Im Auftrag von Warren Ziegler
Gesendet: Mittwoch, 9. Dezember 2009 16:30
An: rsgb_lf_group@blacksheep.org
Betreff: LF: TX-2200A

Interesting new rig offered by Waters and Stanton - the TX-2200A 100
Watt class D transmitter for 136kHz - VFO controlled with receiver
muting.
Made in Japan, relatively pricey though at 690 GBP!

http://wsplc.com/pdf/TX-2200A.pdf



73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1