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Recent Posts

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92
Morse Code / Re: QRPp // HF Morse at LESS Than One Watt
« Last post by Sparks on June 02, 2018, 12:09:24 AM »
To paraphrase Kopernicus:  'And yet, QRP works.'

I did study the history of astronomy, for a long period. Kopernicus was my great hero then and now. However, that famous quote is attributed to another great astronomer, a century or so later:

https://en.wikipedia.org/wiki/Galileo_affair
https://en.wikipedia.org/wiki/And_yet_it_moves
93
New To Radio / Re: QRP from a beginners view
« Last post by vwflyer on June 01, 2018, 11:00:15 PM »
Congrats on your ft817 purchase. I've never owned one but I don't think you can go wrong with one.

I have done some QRP SSB though, and I can say, it's not for the impatient. Contacts are rewarding and as Gil says, with practice you will make more and more. There are tricks to QRP, like calling a guy right after he finishes a QSO with someone else (tail ending), checking into nets, break into a rag chew where the people sound friendly and inviting, answering other's CQ's rather than sending one yourself.

A good way to test the abilities of your station is to make contacts with people you know are listening for you. Set up a sked with someone on this forum or any other of the numerous web forums. Send an email to someone in your local ham club asking if he's free for a sked. Even during this time of low sunspots, 80 meters NVIS works wonders, even at QRP, for local and regional contacts. Or activate a SOTA summit and spot yourself. You will be the center of a pileup in no time and most of your chasers will give you realistic signal reports.

A great forum to set up skeds with people is the Straight Key Century Club (SKCC). They have a webpage just for setting up skeds with other people who use a straight key. It's a great way to get your feet wet with CW. Since everyone is using a manual key, the speeds are slow and the people patient. Plus, for QRP, CW has several db advantage over SSB and your experience making CW QRP contacts will be more akin to making SSB contacts at 100 watts.

You've got a great setup. Stick to it and don't get discouraged. If you're not careful it may become an addiction.
94
Antennas / Re: Tuning the QRPGuys vertical tribander
« Last post by vwflyer on June 01, 2018, 08:43:13 PM »
Gil, Thanks so much for pointing out what should have been obvious. I feel like a fool for not thinking of it myself. It works like a charm. If I run the coax inside the bead without any loops I have to have the bead up by the base of the antenna. If I loop it through just once (like in the photo) it gives me perfect SWR on the HB-1B meter no matter where it is on along the coax. It even shows low SWR over a much wider range of the band.

95
Antennas / Re: Tuning the QRPGuys vertical tribander
« Last post by vwflyer on June 01, 2018, 01:08:01 PM »
Good idea Gil!
I'll try that today.
96
New To Radio / Re: QRP from a beginners view
« Last post by CPR on June 01, 2018, 08:35:36 AM »
Thanks GIL, It's already on my toDo list. Just have to get 6 old thick guitar strings for the beams.
97
Antennas / Re: Tuning the QRPGuys vertical tribander
« Last post by gil on June 01, 2018, 08:00:01 AM »
You can also try a clamp-on toroid on the coax and slide it back and forth for best SWR...
Gil

Sent from my SM-G928F using Tapatalk

98
New To Radio / Re: QRP from a beginners view
« Last post by gil on June 01, 2018, 07:58:20 AM »
Well done! Not a bad start really. You will get better at it. The 817 is a good choice and does everything. Now you need to make a portable Yagi for 2m SSB!

Gil

Sent from my SM-G928F using Tapatalk

99
Batteries & Solar / Re: 18650 battery testing
« Last post by CPR on June 01, 2018, 05:05:08 AM »
All the best and fast recovery!
100
Batteries & Solar / Re: 18650 battery testing
« Last post by Andywragg on June 01, 2018, 04:57:15 AM »
Thanks Joel.

There's a good chance she may be allowed home today. Fingers and toes crossed.
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