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If your transmitter output stage is generating a few Watts but you are seeing only 200mW output after a LPF designed for a lower cutoff, then you should be asking yourself " Where is that surplus power going?" The answer I suspect is as heat in the output transistors. If you need to operate at a different frequency than the original design, then re-configure the LPF.

Hi Hans,
did you ever formally release this version?

73 Ken G4apb?

?KE0GYC,

That battery would not be good for QSX (10W transmitter), the battery protection would likely
kick in at RF peaks and shut it down.? Also full charge its 12.8V but average voltage during discharge
is 11.4 and that would limit power out and have other issues.

The ideal lithium pack for QSX would likely be a LiFePo4? 2P4S in the 4000 to 12000 mAh range with
a full charge voltage of 14.6V.

It would be good for QCX.? IT would be a ok pack for radios like FT817 though 2200mah is not much?
run time.

That pack is for the RC transmitter so the max current is much lower than a battery for cars or planes.

Allison

Yes, those R/C battery packs are very useful and readily available at your local Hobby Store along with the chargers.

73 Kees K5BCQ

I've done a fair amount of international ordering, and I do see it vary widely from country to country. This is my first time with a shipment from Turkey, and I'd put them on the slower end of the scale, last update I show is on 4-8 where the origin post is preparing to dispatch the mail piece. Experience has been that its possibly already left Turkey, next update will be on the US side when received.

In contrast, i just placed an order with a Swedish supplier, standard post, and 2 days later, it is already in the US.

I think its a high compliment to Hans and his products that we're all waiting at the front door hoping today is the day the postman brings us our goodies, lol.

On 16/04/2019 14:13, John Kirby wrote:

Jack,
?HI HI only been my XYL since 1964,
me a ham since 1956 dit dit

Hans BPFs (image) are a delight

John,

That dummy load - where did the design come from? I presume the leds
give a rough indication of power?

I'd be interested in the schematic &/or source.

Regards

Nick
M0HGU

--
'People need vampires,' she [Granny] said. 'They helps 'em remember what
stakes and garlic are for.'
(Carpe Jugulum)
14:50:01 up 2:09, 9 users, load average: 0.65, 1.24, 1.44


--
73 Nick M0HGU

?Jack,
?HI HI only been my XYL since 1964,
me a ham since 1956 dit dit


Hans BPFs (image) are a delight

L4 es C30 tweeking can be fun too but,? ?you will need three meters and,? ?a better understanding of class E efficency than I could muster ( retired 1997)

N3AAZ

BTW, every single spot of N4QA shown in the screen shot below of the current 'RBN week'? is from my stock QCX-17 :

Also seen here:


72 / 73,
Bill, N4QA

In an attempt to prove that she's an eight-band QCX rig, the stock QCX-17 is running a CW beacon, somewhere within the lower 5 kHz of the USA 12 meter band.
Power output is 200 milliwatts and the antenna is the GADS! ( Gutter And Down Spout ! ).
Looking at RBN spots for signs of world-wide CW activity at:


shows...see screen shot below.
It's a long shot but my stock QCX-17 doesn't seem to mind...
72 / 73,
Bill, N4QA

RE T1 and pcb de solder / re solder

As we all know T1 is prime RX ... If u can't hear-em can't QSO-EM

Solved my problem

N3AAZ?

Sorry, I meant to say QSX, so it should be suitable for either of the QRPLABS offerings.

That should be within the realm of QCX power though, right?? A 10W SSB rig should draw under 3A average by a pretty good margin.

N3AAZ

Hey, John, N3AAZ,
Many thanks for the hint about the "variable (tunable)" audio filter.
I've been wanting to improve on my 7-band QCX rig's performance while receiving, for example, CHU on USB on its three freqs, as well as AM SWBC, JS8, FT8 etc on all my QCX-17's freqs !
72 / 73,
Bill, N4QA

OOPS image ?
N3AAZ
SETUP

Hey there, Nigel.
Not having a stock QCX-30, I can't speak to its performance on other bands.
But, as for my stock QCX-17, I have enjoyed more QSOs with it on 30m than on any other band...would love to QSO ZS6RN on 30m !
I was informed yesterday by Alan, G1FXB of the 6-band QCX rig by Andreas, DM5MU, found near the bottom of the page at:
?
Very interesting rig !
72 / 73,
Bill, N4QA