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Messages - swxx

Pages: [1] 2 3 ... 6
1
Technical Corner / Re: Pro and Con of Various QRP Rigs as survival radios
« on: September 06, 2017, 08:55:12 AM »
The MTR won't let you transmit out of band, so who cares what frequency you're one  :o

Gil.
That's a minus point from most of these rigs that makes it less suitable as a Survival Radio. When there is life-saving issues, being able to transmit outside the band is a requisite, not just for MARS frequencies, but to avoid QRM or for quiet skeds etc.

All the people who know that has a Youkits/Tentec are glad, same all the people who has a LNR.
And I think all those who have PFR-3b too! It is difficult. It still is a fact that even very hard to choose between them all, NONE of them are ideal for survival radio. But they do come CLOSE!

2
Technical Corner / Re: Pro and Con of Various QRP Rigs as survival radios
« on: September 06, 2017, 12:33:59 AM »
Funny, I really like the buttons.
You Button Pusher!!!  ;D

3
Technical Corner / Re: Pro and Con of Various QRP Rigs as survival radios
« on: September 05, 2017, 11:42:25 AM »
I don't like the bottons for change frecuency of mtr5b and mtr3 and that no input more than 12v exactly but the people who has it are glad.
This two reasons also why I don't like MTR!

I own a Tentec R4030 (youkits HB1A more o less) and I am very happy with it, in fact, I don't use my 817ND never in CW since I bought the tentec.
Now this rig is not being made? I found this which says the R4030 is not made by Ten-Tec, but it is? But on Ten-Tec website is not longer listed. Maybe they stopped to make it? How much this rig costs or only available now second hand? Was it a kit or ready built? Very good specs, my only problem with this rig is I would need 40/30/20 at minimum, not just 40/30. But otherwise it's great!

4
Technical Corner / Re: Pro and Con of Various QRP Rigs as survival radios
« on: September 02, 2017, 11:12:55 PM »
How about making these cases (N)EMP proof? Any ideas there? It'd be nice to be able to make a lunch box NEMP proof.

5
Technical Corner / Re: New QRP Labs 5W CW Transceiver Kit.
« on: September 01, 2017, 08:58:29 PM »
These are being shipped from China so I wonder what the situation there is. If your number is 493+ then that's in the second batch which is allegedly in 2 weeks time. How many are in that batch? One would hope 500 otherwise we're in trouble.

The rate at first was averaging 10 sent out per day, but that was a small time sample so no good indication of longer term. If it is, and now it has dropped way below that average, we won't get our QCX this year. So they certainly need large quantities AND full time sending out, which I don't know how that can be afforded easily even in China.

I think the better option if they can arrange it, is to have this done across the border in Laos. The postage is crazy cheap, and the cost of living is less. That's how some of the Pixies are sent out.

6
Morse Code / Re: That's a paddlin...
« on: September 01, 2017, 08:53:00 PM »
Another problem is common to me: any push of the memory buttons and then it plays, the piezo is so quiet I don't hear it, and I have it in beacon mode.

7
Net Activity / Re: Global Radio Relay Network
« on: September 01, 2017, 10:45:55 AM »
The folks at RRI are really UFB I could not praise them enough! Agree your advice scarr.

8
Morse Code / Re: That's a paddlin...
« on: September 01, 2017, 10:41:19 AM »
I'm also using the Ultra Picokeyer and found the battery lasts much less than a year did not think of disconnecting the piezo beeper, it is so quiet anyway can't hear it. Will have to look how to disconnect that!

9
Net Activity / Re: Global Radio Relay Network
« on: September 01, 2017, 05:19:03 AM »
Very good idea, familiarize with RRI first, as this project could join into existing one.

10
Net Activity / Re: Global Radio Relay Network
« on: September 01, 2017, 01:46:08 AM »
CWW (CW Web): 1 vote
WRRA (Wor(l)d Radio Relay Association): 1 vote
RETRO Net (Resilient Emergency Telegraphy Radio Operators Network): 5 votes

Looks a likely winner. Are we OK for the colour codes as suggested above on the map?

Gil you've got some serious programming work ahead!



11
Technical Corner / Re: Building an EFHW (End Fed Half Wave) Antenna Coupler
« on: September 01, 2017, 01:45:54 AM »
Just as an aside on the interesting point about the founders of amateur radio. As far as I know, initially, ALL were radio amateurs, including Marconi. Initially, ALL frequencies above 3MHz belonged to radio amateurs, without any license whatsoever. One can draw an analogy with driving vehicles. At first there were NO licenses and no rules. But later, the GOVERNMENT stepped in when it was found that Short Waves were NOT useless as had been thought.

They had been considered pretty useless as skip zone wasn't understood, it was not known that there was an ionosphere reflecting HF signals! So in tests, after 30 miles or so the signal disappeared and thus above 3MHz was considered useless. Then when hams in Europe and America started making contact, still largely unregulated, aha, then these air waves had value, and amateurs were now RESTRICTED to certain bands: 160, 80, 40, 20, 10 and perhaps also 15. AND those bands were wider than now! I think 20m was 14 to 14.5 or certainly 14.4 MHz.

So it may have not been amateurs but governments who conceded these bands, or decided upon them? Perhaps with or without amateur input?

A very important things that has always NEEDED TO BE DONE and now more than ever and yet NO IARU SOCIETY ANYWHERE is doing it: as acknowledgement of the role of amateur radio and radio amateurs in all communications development from the outset, the ORIGINAL amateur radio bands (even if smaller as we have now) at 160, 80, 40, 20, 15 and 10 meters should be given IN PERPETUITY to the amateur radio service.

Only this will protect encroachment upon it by the money-men and their regime poodles (governamints).

12
Net Activity / Re: Global Radio Relay Network
« on: August 31, 2017, 11:42:27 AM »
Changing my votes:

-1 WARRIOR World Whatever
-1 CWW CW Web

So we thus far have:

CWW (CW Web): 1 vote
WRRA (Wor(l)d Radio Relay Association): 1 vote
RETRO Net (Resilient Emergency Telegraphy Radio Operators Network): 2 votes

Any other suggestions or votes? Propaganda Publicity Plug: "C'mon, vote RETRO Net, you know it makes sense!"

13
Net Activity / Re: Global Radio Relay Network
« on: August 31, 2017, 11:38:21 AM »
That's a good idea - I was initially thinking that contacts should have to be made using off grid power, but we want people to participate and any emergency, bar a total collapse, will leave the grid up in some/most regions - so there's no point in excluding people.

Simple map legend would suffice: 

Green    =  Battery + Solar/Wind
Blue      =  Battery + Generator/Car
Yellow  =  Battery only
Red       =  Mains only

I strongly second this approach, that is very good idea, otherwise it will be too small and discouraging. Having these colors shows you where you stand and is a motivation to move up! I'm then BLUE but need to get to GREEN. I hope your idea is adopted. I don't think the RED should be excluded at all, and it will help us to have these categories as we then also know which will fall off with the power outage.

14
Technical Corner / Re: Simple 5 band antenna and L network tuner
« on: August 31, 2017, 10:49:42 AM »
Thanks Sparks. If you haven't seen it you may find this post comparing pros and cons of the various rigs interesting.

15
Net Activity / Re: On the air..
« on: August 31, 2017, 10:47:37 AM »
Condx here today: Telegram and Internet were working fine, cell network and mobile calls was not. HF: I recently made a 2m long helical vertical about 3.5cm diameter which works very well on 20m, and today added 12cm base coil which resonates it on 40m. Boy does it work well. S8-9 to and from central pacific with 50W on CW, and S5 into K7 on 40m with 50W PEP SSB. W1YL/7 was S8. It really seems quite efficient, and condx indeed are good. Yesterday, did not try today, 30m LP EU to VK was very good. 20m today was also great from USA to AUS. But now there is a minor geomagnetic storm underway have not had a listen as the local noise is huge on all bands right now from the drug users, dealers and tell-lie-vision watchers but condx supposed to be poor on all bands so maybe the good time is over again for now.

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