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Messages - CPR

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1
I value cw as it is but have no intention to learn it for now as I see no need.

Via TapaTalk


2
Yes, CW is the top of the energy efficiency.. It's like a VW BlueMotion or a state of the art hybrid car. But not everybody can afford (learn) it. Although CW seems like a really useful thing to know, I personally prefer talking SSB.
I can charge my 18650 via USB and my Anker solar panel. It can deliver 2A tops, enough to charge my batteries to stay online. I have my diy 3s2p 6Ah 18650 pack. I can take out 3 and run 3Ah while the others charge. With my 817 I can stay online quite a time with 3Ah. Although I would not waste energy too much, rather stick to the 3-3-3 rule for SHTF.
I built in a BMS to that pack, I could even charge them with solar. But this panel delivers 5V, converting it to 12V won't do the trick as the Amps will drown.
Maybe, I'll get a decent 12V panel someday, but I don't see the need right now, not when I don't have a current-hungry amp.

If you buy your rig primarily for fun, then go with 100W, if you buy it from the prepper side of view, I'd suggest for QRP rigs. There is no need to get through a pile up when SHTF  ;D

3
Yeah... Like when I was talking Croatia Moscow 1850km on 5W SSB and some wise guy flattened me with his 1.5kw station. Great stuff! The guy in Moscow was not amused, my S meter almost blew up. Of course it's great to have a power reserve in the sleeve to activate if necessary. I'll get an amp myself, the small portable 50W amp for the 817.
But, what's your goal in emergency preparedness? Doing DX contacts with 100W, even considering that there could be a grid down and most of the hams are out of order and the air is much cleaner?
I don't know. For me its enough to get continental, staying inside Europe. I mean, that could secure your survival. It depends on what goals you have for your emergency ham stuff. I see no need to talk to USA or Japan if a disaster strikes. It's enough to hear what is happening there, if I have to communicate I don't see a reason to go outside Europe. That said, 5W is an acceptable power, also considering the ease of carrying that rig around. Someone using 100W for +2 days of field use has to haul more than 4 times the weight (even more) than I do.
Id rather be mobile and quick on foot in a SHTF and using 5W, than slow, overloaded and burning all my calories just to haul my 100W righ with solar power and 2 kilos of batteries around.


Check that out: https://www.youtube.com/watch?v=u_u1ss3GXcI

4
HAHAHAH that's a good one  ;D

5
Antennas / Re: Random wire antennas and tuners
« on: June 14, 2018, 07:32:00 AM »
Will try that. Thank you!

Via TapaTalk


6
Digital Modes / Re: I tried FT8 last night!
« on: June 14, 2018, 07:28:27 AM »
Sure won't do that again! :o

I knew it probably wasn't for me, but with all the hooplah, I had to give it a try, at least to know what I'm talking about if ever that conversation pops up in good company... I even made one contact. For me, it's like watching paint dry, utterly useless and uninteresting. I'm not bashing FT8 users or even FT8 here, but it just isn't for me, by a very long shot.

I used the same software however for WSPR, to see my antenna radiation pattern, very useful, got Venezuela on 40m 2W. Of course with WSPR you don't put anything in your log, but I couldn't care less about my log. I actually only input contacts maybe half the time, when I don't lose my notes, forget to write the date or call signs...

Radio for me is about human interaction if only to ask what antenna someone is using... A few words about the weather, even a simple FB, exchanged between two people, make my day.

Gil.
I am new to ham but my few contacts were just signal reports for the log :( as soon I try to start a conversation, the other hams block with 73. It's quite sad.

Via TapaTalk


7
Antennas / Re: Random wire antennas and tuners
« on: June 14, 2018, 06:26:40 AM »
You might want to try a different wire length for 40 and 80m. Also, try a different coax length and maybe a counterpoise. Random wires can be a pain, but they do allow multiple bands...

Gil.

I took the wire length from here: http://udel.edu/~mm/ham/randomWire/ (84ft wire with 17ft counterpoise). I got a counterpoise, but I am uncertain how to lay it out. I tried directly beneath the radiating wire when horizontally for NVIS, and I tried 90 degrees. But if the unun is in the air several meters, then most of the counterpoise wire is hanging down. ???
I used 5m coax. With 10m coax I got worse SWR readings. I don't know, is my coax maybe acting as an antenna to? Do I need a choke?

8
Antennas / Re: Random wire antennas and tuners
« on: June 14, 2018, 06:07:52 AM »
I was out yesterday to test out the 9:1 with a random wire.
I can say, it is really quiet! At home I got QRM on s7, out there it was 0. Very, very quiet antenna! I also built a RF choke balun / air choke but I see no difference. A thunderstorm kicked in and I had to sit it out, cooked some meal in the meantime.
Anyway, I had a QSO with Moscow, that is 1850km away on 5W! And I can't tune it to 40 and 80 meters. I dont know why. Unfortunately my antenna analyzer was switched on all the time and drained the battery so I could not see the SWR on the randomwire Unun without the tuner. I added a longer tentpeg to the counterpoise as some kind of a ground but did not notice any improvement at all.
Next time I have to take the antenna analyzer with me to get sure. Anyway, I am pretty pleased with the random wire. It is easy to set up! I set it up horizontally to the ground, hoping, I could get some local contacts but I did not. Weird. I made a video about it.

https://www.youtube.com/watch?v=EV4glRZnELQ

9
New To Radio / Re: New to HAM Community What is a good beginner rig?
« on: June 14, 2018, 03:29:12 AM »
I know that CW is the best energy efficient method, but for a beginner I think SSB is a good start. I had a QSO with Moscow yesterday (1800km) on 5W SSB. Getting through pileups with a  QRP rig on SSB is very frustrating. But for me it's fun. Sooner or later I will get a 50W amp for sure.
But for beginners, I don't know if CW will be learned right at the start - I guess not.

10
New To Radio / Re: New to HAM Community What is a good beginner rig?
« on: June 12, 2018, 02:06:23 PM »
The main advantage of qrp rigs is power drain. Qro rigs in qrp mode drain much more power than pure qrp rigs.

Via TapaTalk

11
Antennas / Re: MFJ 971 vs LDG Z-817
« on: June 11, 2018, 04:07:10 AM »
It does not matter for me if it's auto or not, turning knobs is fun for me  ;D Somewhere I read that autotuners are not so good for the finals as they are exposed to high SWR during the tuning process. My QRP tuner from QRPguys is okay, but not able to tune my random wire antenna on 80m (~25m long, 71 feet I think). A possible cause is also the environment at my home, a lot of QRM here. Haven't tried to tune it outside in nature yet.
I somehow got the impression that manual tuners are able to tune a wider range of impedance than auto tuners. I can't find any confirmation about that though.
Also, when using an amp in future that is more than 20W, how to use it then (LDG goes to 20W max). I assume the tuner is put between the radio and the amp then and disabled during tuning?

So far I got:

LDG 817 autotuner:
- autotuning
- no hassle
- smaller than MFJ

MFJ 971
- SWR Readings
- Power out readings
- can attach a random wire directly to the tuner if necessary
- supports up to 200W AND Qrp up to 6W
- finals not exposed to high swr during tuning process
- no batteries needed
- manual tuning = you got the control on what is happening


12
New To Radio / Re: New to HAM Community What is a good beginner rig?
« on: June 11, 2018, 03:55:48 AM »
I am a beginner and I decided to go for QRP. Although I had only 5 contacts yet, the excitement and rewarding feeling when a contact was made is enormous! Very rewarding.
It is hard but if you only got 5 Watts, then you start to think about efficiency. How long the feeder is going to be? What kind of coax you will use? Calculate coax loss in feeder line, build very efficient antennas and so on. I think if you go QRP then you have to dig much deeper into the topic to get it to work, which is basically not a bad thing - it's actually quite good.

13
Antennas / Re: MFJ 971 vs LDG Z-817
« on: June 08, 2018, 06:00:08 AM »
Hi Jon,

thanks for your suggestion. Can you explain what is better on the LDG than the MFJ?

14
Antennas / MFJ 971 vs LDG Z-817
« on: June 08, 2018, 04:51:04 AM »
Hello guys,

I am about to buy my first real antenna tuner. Although I got the QRP Guys Z Match tuner, I wanna have something more powerful for scalability.
I am currently really struggling on what to choose. My favorite is the MFJ 971 tuner. It's small and can be set to QRP use (max 6W) with integrated SWR and power meter. Also it can be used with higher power (for the time after I get an MX P50m amp).
But somehow the autotuner from LDG got into my head, it's smaller and more portable. But it can only do 20W max...
Can someone show me the pro's and con's to each tuner?
I don't wanna waste my money...
I really appreciate any information!

ATB
CPR

15
I don't know if it's legit to talk about this here. I am just pissed at the moment!
I read about an Iraq and Turkish guy in Germany who raped and tortured a 14 yrs old girl and then killed her. The Iraqi has a rejected Asylrequest but was still in Germany - legally - although having a pretty extensive file at the police. I don't want to be racist here and this post is not intended to be racist, it's just about the current situation.
We are not seeing any of this in the mainstream news. Hell, in Croatia nothing is reported about immigration anymore - it's ignored - if it's not in the news it is not happening, right?
Our government was not able to protect our borders when the big immigration wave came. I envy Hungary, they have done it right. Croatia can't secure it's border because its just way to long, the borderline outlines whole Bosnia and Hercegovina. So, I assume that is also the reason why we are struggling to get into the Schengen agreement.
I live at the transit zone in North Croatia, all the traffic going to Europe goes through my town (heading Maribor - Graz - Salzburg - Munich). Thank god the migrants went over Ljubljana so we were spared of looting and civil unrest - although we prepared for it.
Some folks here prepared food and stuff. Very kind - but dont be stupid. Most of those are young aggressive men.
Slovenians closed the borders, very clever. So the immigrants had to stay in Croatia - again, the government was not ready (they are never ready for anything, they are incompetent here)...
Anyway, I often see civil unrest videos in France, as there is a big percentage of muslims so there are more cultural friction points. I am curious what's going on there?


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