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On Fri, 28 Jun 2013, n6gn wrote:
Of these, I think KI6STW and KC6KGE may not yet have 432 antennas with significant aperture/gain. With the
larger aperture/gain comes increased directivity. This means that we may have organize our efforts more than
for HF or even 2m WSPR. It would seem that the Sonoma County stations are clustered close enough, with the
possible exception of WA6M, that they might be considered as a bloc when trying to run with KI6STW or KC6KGE.
My 2 meter antenna hasn't been spotted yet when used for 432 MHz WSPR activities......
I do have a nifty 7 element antenna that may be useful for 432 MHz WSPR transmissions. It is currently confined to the inside of the office for the moment. It would need some elevation and directional control to be useful. I picked it up from HSC Electronics.
Image:
https://picasaweb.google.com/112916124640757906440/NonarthopodicAntenna#5744075011289411922
Kevin Martinez
KI6STW
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Apply appropriate technology. Use what works without prejudice.
Steven L Hess ARS KC6KGE DM05gd22
Google Voice 661 769 6201 +SMS
openSUSE Linux 12.2 KDE 4.8.5
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____________
Apply appropriate technology. Use what works without prejudice.
Steven L Hess ARS KC6KGE DM05gd22
Google Voice 661 769 6201 +SMS
openSUSE Linux 12.2 KDE 4.8.5
Known as FlameBait and The Sock Puppet of Doom.
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____________
Apply appropriate technology. Use what works without prejudice.
Steven L Hess ARS KC6KGE DM05gd22
Google Voice 661 769 6201 +SMS
openSUSE Linux 12.2 KDE 4.8.5
Known as FlameBait and The Sock Puppet of Doom.
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2013-07-02 17:58 | N6GN | 432.301499 | +9 | 0 | CM88ok | 20 | WW6D | CM88pl | 9 | 57 |
2013-07-02 17:58 | N6GN | 432.301583 | -7 | 0 | CM88ok | 20 | N6KOG | CM97gs | 138 | 122 |
2013-07-02 17:54 | N6KOG | 432.301399 | -8 | 0 | CM97gs | 20 | N6GN | CM88ok | 138 | 303 |
2013-07-02 17:52 | WW6D | 432.301521 | +7 | 0 | CM88pl | 20 | N6GN | CM88ok | 9 | 237 |
2013-07-02 17:46 | N6GN | 432.301583 | -6 | 0 | CM88ok | 20 | N6KOG | CM97gs | 138 | 122 |
2013-07-02 17:40 | WW6D | 432.301520 | +6 | 0 | CM88pl | 20 | N6GN | CM88ok | 9 | 237 |
We may be running on 432.3 up here on Wednesday, in case you are still QRU. ....
On Mon, Nov 25, 2013 at 7:03 PM, n6gn wrote:
It's really great to see Joe, KJ6BQA spotting and being spotted accurately and with no drift now. Looking at the units column of the database is really becoming interesting. For one thing, when there is something other than a "0" it is almost always accompanied by some reported drift. I think this usually means a crossing ACS term which seems to have the effect of "dragging" WSPR off of 0. ....
.....Since we could run WSJT just as well as WSPR, I thinks this means that if we want to demonstrate it, we can probably show moderate haul DX QSO on almost any amateur VHF through microwave band. Perhaps I'm behind the times and the rovers and VHF/UHF DXers are already doing this for contests but if they aren’t', I bet they can.
Glenn n6gn
Carol –
You may want to consider N connectors, or perhaps even SMA if power levels are not too high.
I have noticed that PL/SO-259, even at their best, don’t
perform all that well at UHF. At best,
they introduce significant reactance, at worst they also introduce loss.
To make matters worse, there is a now large degree of variation in composition and quality, especially in the cheapo crap that comes out of China.
I had an SO/PL-259 elbow in my system that was actually heating up with 90 Watts at 432MHz in an otherwise 1.1 SWR system. Not good.
FWIW, I use PL-259 to BNC adapters at the radio (why do they keep putting SO-259’s on V/UHF radios?). Then short decent quality BNC between radio and BNC/N adapter at the power meter, then out to the N connectored feedline and antenna.
Measurements show that BNC, at least for the cables and adapters that I have, work well up to 432 MHz, pretty good at 915MHz, but not all that great at 1296 MHz and above.
I use BNC for convenience, because I use my “ham station” equip for my day job, but you can just as well eliminate the BNC and go direct from PL-259 to N.
And, as you know, both the N’s and SMA’s work very well up into the multi GHz range.
My progress report on 432 MHz...
- This weekend I did some testing...
0936PST Been active for awhile now on 432... see no others. Closing down. Steve/N6KOG
Some interesting polarization noted on 70cm yesterday from N6GN to KD6RF/V shown below .
(There were also several hits from N6KOG to KD6RF/V, but signal levels were soooo strong from Tracy to Livermore that it probably doesn’t mean much…)
VERTICAL POL – 5 total spots from N6GN to KD6RF
2013-11-28 02:32 N6GN 432.301504 -27 0 CM88ok 10 KD6RF/V CM97cq 121 133
2013-11-28 02:24 N6GN 432.301504 -28 0 CM88ok 10 KD6RF/V CM97cq 121 133
2013-11-28 02:12 N6GN 432.301504 -26 0 CM88ok 10 KD6RF/V CM97cq 121 133
2013-11-27 21:44 N6GN 432.301518 -28 1 CM88ok 10 KD6RF/V CM97cq 121 133
2013-11-27 21:14 N6GN 432.301504 -27 1 CM88ok 10 KD6RF/V CM97cq 121 133
(Note that the KD6RF/V receiver is the R7000 “drift box” and is not locked to reference)
HORIZONTAL POL – 30 total spots from N6GN to KD6RF, 4 of which are accompanied by the Vertical spots shown above:
2013-11-28 02:32 N6GN 432.301499 -24 0 CM88ok 10 KD6RF CM97cq 121 133
2013-11-28 02:12 N6GN 432.301500 -23 0 CM88ok 10 KD6RF CM97cq 121 133
2013-11-27 21:44 N6GN 432.301500 -23 0 CM88ok 10 KD6RF CM97cq 121 133
2013-11-27 21:14 N6GN 432.301500 -23 0 CM88ok 10 KD6RF CM97cq 121 133
432 is cool. You guys/gals are cool too. I've had a ham license for 40 years, and these are the first non-repeater contacts on on both 2M and 70 cM for me :)
dB
Nope not seeing anything here.. 73 Steve/N6KOG
From: Glenn Elmore <n6...@sonic.net>
To: 2-mete...@googlegroups.com
Sent: Wednesday, December 4, 2013 11:08 AM
Subject: Re: {2 Meter WSPR} Re: 432 MHz WSPR
Carol,
Understood. There are lots of things to do to get and keep several WSPR bands running!
So far today I'm seeing WW6D, K6PZB, N6KOG and KD6RF/H. I'm also seeing, but not decoding something near 530 but having too much drift. I don't see anyone else decoding it so I don't know who it is. It's inside the white circle below...
<hbbijcad.png>
2013-12-11 16:26 | KD6RF/H | 432.301531 | -23 | 0 | CM97cq | 20 | KP4MD | CM98iq | 119 | 21 |
2013-12-11 16:24 | KD6RF/H | 432.301531 | -25 | 0 | CM97cq | 20 | KP4MD | CM98iq | 119 | 21 |
Those were both with 80 watts, the most my current power supply can handle. No T/R switch yet, so it's, back to the measly 15 watts that the IC-706 puts out. |
ve this one:
2013-12-11 16:44 KD6RF/H 432.301531 -28 0 CM97cq 20 K6PZB CM88nk 126 312
I successfully checked into the Northern California 432 SSB Net on 432.100 MHz at 1900 PST on Sunday night and also listened carefully as 1 kW net control station KG6HXI in Wilton CA swung her large Yagi antenna calling for check ins around the compass points. I heard some weak SSB signals at or below the noise level from the north and south SF bay area. This suggests that 432 MHz WSPR contacts are possible from Sacramento to those areas.
The attached Radio Mobile coverage map for my 5 element 432 MHz Yagi with a fixed 230° bearing shows the 3 dB beamwidth extending from near Santa Rosa to San Jose on the Pacific Coast. The coastal ranges present a formidable obstacle for this radio circuit. My WSPR station will be on 432.301510 MHz from Tuesday night through Wednesday.
Carol KP4MD
Citrus Heights, CA
Dr. Carol F. Milazzo, KP4MD
406 Sunrise Ave, Suite 280
Roseville, CA 95661
December 18, 2013
Bruce Walker, W1BW
426 Strawberry Hill Rd
Concord, MA 01742
Dear Mr. Walker,
Increasing numbers of amateur radio operators who use WSPR to study UHF and microwave propagation phenomena would appreciate if the drop down selections for UHF and higher bands on the WSPR Spot database page would become functional.
The listed drop down selections for 125cm, 70cm and GHz on the WSPR Spot database page http://wsprnet.org/olddb do not function to retrieve spots for those bands.
Although ours and the Australian WSPR study groups regularly upload 432 MHz spots to the database, the search http://wsprnet.org/olddb?mode=html&band=432 retrieves none of those spots.
Could you please arrange to correct the necessary code to allow database searches on these bands?
Sincerely,
Dr. Carol F. Milazzo, KP4MD/6
Northern California VHF/UHF WSPR Study Group