ham_bitious

joined 2 years ago
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[–] ham_bitious@lemmy.radio 22 points 4 months ago (10 children)

You're not really a good samaritan when you're using emergency frequencies without authorization. Sounds like he deserves the punishment.

[–] ham_bitious@lemmy.radio 8 points 7 months ago

I let my membership expire after they unilaterally cancelled my paper QST. I'm still mad about that, and the steady trickle of other news doesn't make me want to go back.

 

As you've probably heard, the Quansheng UV-K5 is the hot new HT. And there is a good reason it is so popular. I've been having a lot of fun with mine, and I would highly recommend getting one. 2m FM is fun, and 2m SSB or CW is even funner. And if you choose the same firmware to load as I did (uvk5cec), it will transmit APRS and SSTV.

I made a video going over how mine is setup. Hopefully it helps if you have one. And I'm sure there'll be more videos coming with it in use. The CQ VHF contest is just a week away....

[–] ham_bitious@lemmy.radio 4 points 1 year ago

Hopefully someone or some other business will buy them. Hate to see them go.

[–] ham_bitious@lemmy.radio 1 points 1 year ago

For POTA contacts I'd just fix it.

In a contest that would be cheating.

[–] ham_bitious@lemmy.radio 2 points 1 year ago

Some clubs meet in person and on zoom simultaneously, does your local one? I'd get in contact with them anyway, someone might have a loaner rig you can use to get on the air and see what interests you the most.

Parks on the Air and Summits on the Air are popular an a lot of fun, but you'd need a radio first.

With some basic tools you could build your own radio from a kit.

[–] ham_bitious@lemmy.radio 1 points 1 year ago (3 children)

My reading of the state park map is that the park is on the ocean side of route 1, so that'll eliminate going up any real hills. I'm not really familiar with that section of the coast, though.

It also sounds like you want an excuse to expand your antenna collection. Go for it! Antenna experimenting is fun. Set up two, and try some A/B testing, or use WSPR or RBN.

Its an interesting problem you've found. As a frequent SOTA op, its not one I encounter :D

[–] ham_bitious@lemmy.radio 1 points 1 year ago (5 children)

To get NVIS just use your regular 40m antenna, but set it up closer to the ground. Depending on your mast height, it might be NVIS already.

What park is it? Maybe there's a spot off the beach you could operate from?

[–] ham_bitious@lemmy.radio 1 points 1 year ago

I'd get an SSB capable radio unless you're only interested in FSK modes.

 

I made and tested a couple of capacity hats for my loaded whip antenna to see how they'd do in the real world. Could you use one instead of paying Elecraft for their 40m coil? Maybe. Could you get on 30m and 40m with your KH1 whip? Might be a stretch... https://youtu.be/uYH9yit8jEo

[–] ham_bitious@lemmy.radio 2 points 2 years ago

A j-pole is a half-wavelength vertical with a quarter-wavelength matching section on the bottom.

It turns out that the 70cm band is about 3x the frequency of the 2m band (150MHz * 3 = 450MHz, close enough to each band). So the 2m the long leg of the j-pole is 3/4 wavelength (1/2 + 1/4 matching section), and on 70cm the long leg is 2.25 wavelength (3/2 + 3/4 matching). Both are an odd number of quarter waves, as we expect. The ham who made that briefing probably discovered in their testing that the matching stub wasn't good for both bands, so they added a second one for 70cm.

This is not a novel design, Arrow Antennas has been selling one like it for years (https://www.arrowantennas.com/osj/j-pole.html)

[–] ham_bitious@lemmy.radio 3 points 2 years ago

I'm excited to see the new digital modes people bring to ham radio, or invent.

[–] ham_bitious@lemmy.radio 2 points 2 years ago

No rain in NorCal, but people down south were making rain scatter contacts.

 

The first weekend of the ARRL 10GHz and Up Contest starts tomorrow (August 19) at 0600 local. https://contests.arrl.org/10g/ There will be plenty of activity in California, and probably other regions. It's a fun contest, and everyone should get on the band!

I'll be on a SOTA summit (W6/NC-151) on Saturday, not sure if I'll be able to get out on Sunday.

 

The ARRL 222MHz and up contest is this weekend: http://www.arrl.org/222-mhz-and-up-distance-contest

I'm planning to get on from a summit with the lower four bands. Probably won't be as much activity as the regular VHF contest, but should be fun

 

In case you missed it: (stolen from the ARRL weekly letter)

Summits on the Air (SOTA) in North America has three events scheduled between August 4 - 7, 2023. The Colorado 14er annual event will run from August 4 - 7, the SoCal SOTAFest in Southern California will run from August 4 - 6, and the Pacific Northwest Not-Quite-Fourteener event will run from August 5 - 6, and includes climbers in Washington and Oregon.

Many different frequencies and modes will be used during the August events, but the recommended 2-meter FM frequencies have been changed to 146.58, 146.55, and 146.49 MHz to align with the use of the North America Adventure Frequency for SOTA (146.58 MHz). Operation is also permitted on select HF frequencies. The National Simplex Frequency (146.52 MHz) may also be used. Each event website provides a list of operating frequencies. All amateur radio operators and shortwave listeners are invited to participate.

 

The CQ VHF contest starts soon. Sadly, I'm not able to get on the air, but if you have 6&2 meters you should give it a try. https://cqww-vhf.com/

5
submitted 2 years ago* (last edited 2 years ago) by ham_bitious@lemmy.radio to c/homebrew@lemmy.radio
 

Diz W8DIZ has retired from running kitsandparts.com, and KU4QO had taken over.

Good news if you need toroids and other small parts. And the 5watter is a great radio if you need a kit.

 

Finished cutting together some clips from my 10MHz reference box construction: https://youtu.be/aVKIIHGPXMA

 

I was inspired to copy W1GHZ's power meter from April QST (pg 52). Seemed like it would be nice to know if my 10GHz rig (or any of them!) was putting out power. Got some bargraph boards from him, the rest of the parts from the internet, and finally built it today.

I had a bit of trouble cutting a square hole with only a hand drill, but I can see the bars. (If anyone likes designing and printing cases, let me know!)

Turns out I don't have any 9v batteries, so testing will have to wait until I go to the store. I don't expect to have any problems though, since the bargraph circuit is pretty simple, and the AD8317 board had everyone on it already.

 

How are you learning CW?

Self study? CW Ops class?

 

Finally mounted the 10MHz OCXO in a box. Now when I go do microwaves, I should be on frequency. 🥳

Now I have to set up the 10GHz system and look for the local beacons to see how it works.

 

Anyone working on anything fun or interesting?

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