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Recent Posts

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11
Antennas / Re: EFHW QRP radial?
« Last post by AdventureRider29 on May 20, 2019, 08:04:53 PM »
Hi,
I think QRP will be more effective with a ground Radial or Counterpoise!  Running good QRP requires a GOOOOOD Antenna System to really get out! Just S 1 to 2 signals is not good with 5 watts or Less. Good Luck on your Moarse Code and hope to hear you on the Bands. De WV1Q
12
Technical Corner / Re: Modding MTR4b for 13.8 volts..... possible ?
« Last post by Jon_Garfio on May 13, 2019, 09:54:22 AM »
I remember 78xx needs almost 2v above the output voltaje to works fine,  If you want 12v and use a 7812, the component needs almost 14vcc. 
13
https://qrpver.com/transceivers/all-band-hf-direct-conversion-transceiver-qrpver-dc-3001-minion-mini.html

This $350 transceiver from Odessa in Ukraine looks very interesting and affordable to me.

• "This is a small-size 10 band short-wave QRP transceiver."
• "The transceiver has small dimensions of 100x103x30 mm. and a light weight of 430 grams. It will suit both for work on the field trip, on nature, at the dacha .... So for everyday work, at home."
[…]
• "Power supply voltage: 9-14.8V (Rated supply voltage 13.8V)".
• "Consumed current in the "RX" receiving mode and 25% loudness: ~ 120mA. At 100% loudness: up to  ~ 250mA."

— They say nothing about batteries — so what would be an optimal battery taking this set for hiking in the mountains?

Also, any comment, such as user experience, will be valuable to me.

Edit: Removed 'the' before Ukraine: https://www.bbc.com/news/magazine-18233844
14
Antennas / EFHW QRP radial?
« Last post by PBrad74 on May 02, 2019, 06:51:37 PM »
First off, I'd like to say hello. I joined radio preppers yesterday so look forward to catching up on some reading here. I have been a technician since 2013 and have mostly 2m band from my vehicle, no base station. However, within the last year I have ordered and built the QRP Labs QCX 5W kit for 40m, which works amazing for the $49 that I paid. I am in the process of learning CW from lcwo.net and the K7QO Code Course from FISTS store. I also include listening in on 40m as daily practice with the MFJ 1984-LP (end fed half wave) as my antenna. So this leaves me with a few questions. For qrp operations while out hiking/camping, would a radial be beneficial or do I even need one? Does it need to be grounded? As I mentioned earlier, I'm still learning so I won't be doing any transmitting at all but I want to take it camping next weekend, set it up and listen in on all the QSO's. Any help or advice would be greatly appreciated. Thanks.
15
General Discussion / Re: New OP Checking in
« Last post by bkmoore on May 01, 2019, 03:34:26 PM »
I'm not using the vertical any more, at least not on 40m. The best antenna so far has been a QRP Guys Multi-Z antenna tuner (Costs about $40) with about 85 feet of wire and a good ground. I have the antenna about 30 feet up in an L-configuration between a tree and a beam, then down to my radio. I can tune the wire to close to a 1:1 SWR on all of the 40 m band, and it works very well. I'm using a short 3 foot BNC cable to connect the tuner to the radio. I would like to try a ladder-line random-length dipole for a more permanent home installation and use the wire for portable operations.
16
Morse Code / Re: CW Operators needed...
« Last post by RadioRay on April 30, 2019, 12:37:16 PM »
Yes!

Radio Relay International is awesome.  It's real communication, and reading through the after action report from the Cascadia Rising exercise produced by the U.S. Federal government , it put a smile on my face to see Morse operators juuuuust slightly win over the excellent PACTOR network.  Another factor in this exercise was to simulate the depletion of fuel reserves used for powering ham and municipal generators, which took some of the heavy data centers off the air, as would happen in an actual disaster of this size. The energy efficiency of low/medium powered CW with trained/experienced operators handling traffic really became extremely useful.

Remember: If you can't power your communication equipment, you cannot communicate.


73 de RadioRay  ..._ ._

17
Technical Corner / Re: The Weber Soda Pop Morse Code Radio, Boxing Up & Contacts.
« Last post by SM5NFT on April 30, 2019, 05:23:47 AM »
Hi,

What's your opinion of the Soda Pop, compared to other cw trx, like QCX or MTR? It has a nice sound in your the video, and is both open source and a quite simple construction with mostly standard components. I'm surprised there is so little information about it on the web.

/Arne
18
Morse Code / Re: CW Operators needed...
« Last post by Michael on April 30, 2019, 04:42:28 AM »
Well, that being said, I’ll just quote the most important parts of the thread:

Thread:

“Seasoned CW Operators Needed

 Marty N*** Apr 26   #116022 

Seasoned CW operators, Uncle Sam needs you, well actually the traffic system needs you. Operators at all levels are needed, but I am putting out a specific call to those of you who are a little more seasoned to fill urgent needs in some special assignments. Traffic handling experience is desired, but not required, as training will be provided.

We all enjoy the amateur radio service as a hobby, but we also have an obligation to serve. Traffic handling is an enjoyable endeavor and it provides a life-line in the event of a catastrophic event.

As I mentioned above, operators are needed at all levels and I would like to hear from all of those who are interested in serving, but there is an urgent need for those in particular who have good code proficiency.

For more information, please contact me directly at: marty.ray@...

Regards,
Marty R** N***
Central Area Coordinator”

Statistics:

“Jim, W***** Apr 27   #116052 

Hi Art et. al:

We can always use people with experience or those who want to get
experience.

During a major Federal disaster exercise in 2016, the CW portion of the
traffic system scored an accuracy rate of 99.998 percent across over 10,200
data points. The CW networks also scored the shortest message propagation
times, that is; the time measured from when a message was tendered for
origination in the simulated disaster area consisting of Alaska, Northern
California, Idaho, Oregon and Washington State, to the time the message
appeared in the data stream at the National Response Coordinating Center
(NRCC) in Washington, D.C.

CW nets actually performed slightly better than the digital networks in
terms of accuracy (the latter scored 99.997 percent across fewer data
points), and considerably better in terms of measured propagation time
through the network.

The exercise evaluation report is rather lengthy and includes quite a few
tables showing the data collected. However, suffice to say, CW proved to be
highly effective. Part of that success was related to the operators
involved. Many had commercial or military experience while others were
experienced CW traffic operators with regular net experience and solid
communications skills developed over time. Simply put; *there is no
replacement for training and experience.*

Traffic nets are an ideal way to learn REAL communications procedures. One
must communicate over specific distances, at specific times, and under all
propagation conditions. After all, disasters don't wait for optimum
conditions. Perhaps equally important is the fact that the message content
varies considerably. Every address is different. Telephone numbers and
e-mails are unique. The variety in traffic work far exceeds the predictable
content of casual QSOs or contest/sprint exchanges. If one can perform
effectively on traffic nets, DXing and contesting will come much easier.

Most importantly....it's fun and challenging. There's real camaraderie in
traffic work.

Here are a few resources to get one started:

http://radio-relay.org/wp-content/uploads/2017/11/RRI-Training-Manual-TR-001-2017-Draft-for-Distribution.pdf

http://radio-relay.org/wp-content/uploads/2017/03/RRI-Introductory-Training-2018.pdf

http://radio-relay.org/wp-content/uploads/2017/03/RRI-Traffic-Operations-Manual-2017-FINAL.pdf

http://radio-relay.org/wp-content/uploads/2017/05/RRI-TRAFFIC-OPERATIONS-AID-1720r3.pdf

Marty is right....we need a deeper bench and we need to be bringing new CW
operators into the system. Last year's hurricane season proved that Amateur
Radio is still needed in major disasters.  Why not learn how to properly
assist now?

73,

James W**** (W*****) - SKCC 6***
Radio Relay International
Central Area Staff“
19
Morse Code / Re: CW Operators needed ...
« Last post by Sparks on April 29, 2019, 11:14:04 PM »
An interesting thread has shown up on the SKCC Google Groups mail list.

That Google group is history by now (my bolding):

The Straight Key Century Club is the fastest growing group of  straight key Morse code operators and enthusiasts in the world. Organized in January 2006 the club has thousands of members around the globe. This Groups.io group is a meeting place for general discussion by SKCC members of all topics related to manually keyed Morse code, including mechanical bugs and sideswipers. It is the successor to the Yahoo SKCC group as of September 2017.
20
Morse Code / Re: CW Operators needed...
« Last post by Sparks on April 29, 2019, 10:56:25 PM »
Interesting to read, once you have registered (and been accepted) in three stages:

First, register here: https://groups.io

Then, apply for membership here: https://groups.io/g/skcc

To be accepted there you must be a member here: http://www.skccgroup.com
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