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YT7MPB > TECH 13.07.21 16:42l 57 Lines 2287 Bytes #999 (0) @ WW
BID : 32714_YU7BPQ
Read: GUEST
Subj: Re: 'Data' modes bad for (Yaesu) radios?
Path: IW8PGT<I3XTY<I0OJJ<N6RME<YU7BPQ
Sent: 210713/1436Z 32714@YU7BPQ.#NSD.SRB.EU LinBPQ6.0.21
On 7/7/21 12:41, UT1HZM wrote:
> its not more "bad" than working in FT-8 mode, that most "HF DX-ers" now run their
> rigs for hours even in "robot QSO" modes w/o operator or running remote via mobile device.
>
Good point! Unfortunately, the club bosses do not use (yet) FT8 or
similar. They know very well of FT8 but they also probably know if they
worked FT8 in that case they would lose any argument (read: false
evidence) that digital operations "crew up" HF radios. Unfortunately,
until someone starts operating FT8 in the club I could barely survive
the 'speech of hate' against pactor, packet, robust, ...
>
> FT-1000 series have huge aluminium heatsink and air fan inside, its should not have any problems
> even with "brick on CW key" for many minutes.
>
Sure. Even when I operate FT-1000 I restrict its output not more than
30-50W, and it is cold after few hours of operation.
> As for ARQ modes fast TX/RX change, FT-1000mp have PIN-diode to route TX and RX signals,
> even not mechanical relay, so no degrade of rig's quality after ARQ operation.
>
I suppose so. However it is hard to explain that to the people who think
that only CW (even very fast) is 'safe for radios' HI HI.
> FT-857 (and other small car/portable rigs) will not have hot problem when drived for 25-30max in continued ARQ operation.
> 40-60Šower possible too for, short operation in digital.
> Or need to install some external cooling fan for automatic operation on that power level.
>
Actually, I realized that FT-857 does have a 'hidden' fan inside (and
another ham disassembled his FT-857 and discovered, to his surprise,
even two small fans inside). So in my view, an occasional
manually-started BBS operation(s) cannot 'break' FT-857 that easily ...
at 25W output etc ...
> Not remember if there are PIN-diode or RX/TX relays in 857, you can check it in service manual.
>
>
> 73, Sergej.
>
>
Will try to check it ... it does sound 'click' with change-over but do
not know if there are relays or pin diodes.
But it looks to me that the obvious 'fear of unknowns' that is visible
in the club trustees, is stronger than the reality of safe operation at
small power and so on ... HI ... regardless pin diodes or relays ...
--
73 de Misko YT7MPB@YU7BPQ.#NSD.SRB.EU
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