Jay et al
Yep - the stability is good enough at dot 90 and really all I need I do is move the TS870 into the garage as it has a known WOLF proof pedigree in a transverter mode - bit nippy out there at 0F this morning. At least all the capacitors and inductors are thermally cold
I was just writing to Mike ZL4OL to see if he wants to look for me tonight-
Conditions over here have still some ways to go over the Pole at this Geomag latitude and location closer to the North Mag Pole - DCF39 at peaks was some 25dB on what it has been over past winters - but hows about DFCW 90 137.776 ish Delta 0.3Hz Dash high XPQ? The big tx loop has been inferior to the L400B probe on receive by about a dB s/n over the N Pole but again wave angles change - if I was to go into transceive mode I would use the probe - but there again Im a Part 5 station and all that.
Ive not managed to get to Europe on Tx -as we have learned from others its a bit tenuous even though length isnt over 8K - makes it more interesting and a technical challenge - as it is Ive never ever seen a signal out of Europe that has been strong enough to detect by ear - CW may be possible with JA/VE7/W7 as Ive heard tone ID strengths from 7NI/TIL/SL and others.
I think only a handful of Eu stations have made to to KL7 on 137 over the past 10 years - G3AQC, G3LDO, DF6NM and DK7FC..may have missed one or two.
Ive left the Gear running on tx remote using JT9-5 for the whole of the daylight as we do have a path to the USA West coast stations this time of the year - or if the Sun flashes up with a flare weve seen daylight openings from here with XDW as far south as California.
Laurence KL1 X WE2XPQ
A chilly Alaska morning
From:
[email protected]To:
[email protected]Date: Mon, 5 Nov 2012 13:44:15 -0500
Subject: Re: LF: JT9-30 drfit
Laurence Stefan
Is stability good enough for QRSS / DFCW 60 or
120? Eyes have an easier time following frequency excursions than most digital
mode decoders ...
Jay W1VD WD2XNS WE2XGR/2
----- Original Message -----
Sent: Monday, November 05, 2012 12:56
PM
Subject: Re: LF: JT9-30 drfit
Hi Laurence,
Condx are EXCELLENT on LF/MF. Do you see
real chance for our path this night? If so, which mode would be preferred? And
are you RXing or TXing at all? :-)
73, Stefan/DK7FC
Am
05.11.2012 18:09, schrieb Laurence KL1 X:
>From WE2XPQ KL1 X Alaska
Chaps/chappesses -Looking
at my results here overnight I have just too much thermal drift with my
present driver for the 30 mode - the issue is my trusty FT817 driver using
5MHz IF that even with a TXCO is...too drifty. JT9-5 is fine - But hey
it may have been pretty on an Argo/SL screen :-)
The environment is
rather hostile for radios - temps are around 0degC in the garage even with
heat (that I can afford anyway) so from long off periods the radio cools
even internally..I need to being the lot back in the office/shack - but real
estate is rather limited and Im in deep negotiations with the
boss.
Its fine with the "faster" modes but I have some work to do
with the 850 and other drivers - it was just a stop gap to get me on the
air. Ill dig out the ZL1BPU DDS and continue to work on the 850 external
locked ref oscillator doubler board.
Ill run JT9-5 for a while today
for testing purposes - dial 136, tx plus 1100Hz (carrier 137.11 appx)
-
Laurence Wasilla Palmer
Alaska
