Category Archives: Portable Radio

A quick recap of yesterday’s Carl Sandburg Home NPOTA activation

Yesterday, I fit in yet another activation of the Carl Sandburg Home (NS01) for the ARRL National Parks on the Air. You might recall, I activated the same site last Sunday.

The lake at the trail head.

Second time’s a charm!

Since I had already scoped out the site and the trail where I operated last time, I took a minimum of supplies: My Elecraft KX2, EFT Trail-Friendly antenna and the accessories in my go kit:

I didn’t even need a folding chair as I hiked further into the trail system and found a bench in an ideal shady location where I could hang the EFT antenna without any part of the wire being close to the trail itself.

The only negative was that I had to fight off a few mosquitoes–par for the course!

After firing up the KX2, I found that both frequencies I announced (14,286 and 7,286 kHz) were occupied. I tuned around and found clear frequencies then posted the changes on Twitter and the ARRL NPOTA Facebook page. Fortunately, I was spotted on the DX clusters after my first contacts (thanks, Mike and others!).

In short: this was about the busiest I’ve ever been on the radio.

In 43 minutes, I logged 41 stations: many stations here in the southeast US, and stations from New Mexico to Italy! Propagation and timing were certainly in my favor.

The rubber band held my KX2 to the clipboard, but I hope to sort out an even better way of securing it.

This red rubber band held my KX2 to the clipboard, but I hope to sort out an even better way of securing it in the future.

The pileups were heavy enough that I didn’t even have time to properly pull log sheets once I had completed them–instead, I folded them over the KX2 and continued writing.

I was very pleased that I logged at least one SWLing Post reader: Randy (KS4L). Thanks for the contact, Randy!

Not all portable operations go so well…but when they do, it’s energizing!

I might be able to squeeze in a 30 minute activation on the Blue Ridge Parkway (PK01) this afternoon. Listen for me (K4SWL) around 14,286 kHz SSB sometime between 20:30-21:30 UTC. That is, if propagation and my schedule cooperate again!

Spread the radio love

NPOTA activation on the Blue Ridge Parkway

3 Replies

A crowd gathers as Vlado (N3CZ) works station after station in CW!

I’m not sure what I’m going to do after the National Parks On The Air event is over at the end of this year. I hope the ARRL organizes something equally as fun for 2017.

Truth is, I love playing radio outdoors and I love National Parks. The two are a perfect combo.

Vlado (N3CZ) on left, and me (K4SWL) on right.

My buddy, Vlado (N3CZ), and I decided to do an NPOTA activation on Sunday. The weather was fantastic–a little foggy with mild temperatures and the HF bands were open!

We arrived at our site–the Craggy Gardens Picnic Area (PK01)–at 14:30 UTC or so.

We brought the following antennas and supports:

a self-contained 20 meter band telescopic fiberglass vertical (I recently purchased at the WCARS Hamfest for $40–!) and
a 31 foot fiberglass Jackite pole (the fluorescent orange on in the photos) which we used to suspend a homemade 40 meter doublet Vlado built the day before.

Setup was quick. We were both especially pleased the 20 meter vertical. It was so easy to install, even considering it was the first time either of us had used it.

I powered the LD-11 and the KX3 with my QRP Ranger.

The 20 meter vertical antenna (in foreground).

I operated SSB from a picnic table using the LnR Precision LD-11 transceiver, connected to the doublet on 40 meters, and the mono-band vertical on 20 meters.

Vlado started by operating CW with his Icom IC-7000 which was installed in his car, but later moved to the picnic table and logged a number of contacts with the Elecraft KX3.

We easily logged the number of stations needed to activate the site.

The 40 meter band was hopping and a good path was open into Ohio, Virginia and other surrounding states. The 20 meter band was serving up some excellent QRP DX.

Vlado operating CW on the 40 meter band.

When I moved to the 20 meter band, the noise floor was so low on the LD-11, I thought perhaps the band was dead. Not so!

It’s hard to believe that with a mere eight watts in SSB I worked Rhode Island, Texas, Montana, Manitoba, Washington, California and Slovenia from a picnic table on the Blue Ridge Parkway.

Reports on the LD-11 audio were all very positive. I’ve used the LD-11 for eight NPOTA activations this year and can say with confidence that it’s a brilliant & fun little field radio. (FYI: I’ll be publishing a full review of the LD-11 in the October 2016 issue of The Spectrum Monitor magazine.)

Vlado and I are planning on several more activations together this year. Our next one will most likely be at the Carl Sandburg Home-. I can’t wait!

Any other post readers participating as an activator or chaser in the National Parks on the Air event?

Spread the radio love

Max’s impressive vintage radio collection

7 Replies

Many thanks to SWLing Post contributor, Max Youle, who writes:

I thought I would send you a link to my radio collection.

Many of these are unique to New Zealand, and could be of interest to your readers.

I saved many of these radios from being trashed, by searching junk sales and second hand stores, over a period of the last 25 years

Click her to view Max’s collection via DropBox.

Wow! That is an impressive collection of radios, Max. It’s interesting to see so many New Zealand brands–I’m glad you’ve rescued these!

Max’s collection is so large I couldn’t possibly share them all here on the SWLing Post, so I asked Max if he could tell us which models are his favorites. Max replied:

My favorite radios would be:

Barlow Wadley XCR-30

1. Barlow Wadley XCR-30 featured here before https://swling.com/blog/2016/02/maxs-barlow-wadley-receiver-is-a-keeper/

Philips D2999

2. Philips D2999 for its good looks, ease of use , sound from the two speakers 3″ and 7″ and sharp MW DX

Sanyo Transworld 17h-815

3. Sanyo Transworld 17h-815 A beautiful looking classic with lots of chrome and a good performer

National Panasonic R-021

4. National Panasonic R-021 because it was my first radio, and a fairly rare collectible (article at the bottom of page) http://www.panasonic.com/global/corporate/history/chronicle/1977.html

Its hard to choose a favorite, as every one of my radios has a story ,i.e where I found it, who gave it to me, how much I paid for it, how collectible it is, etc, etc!!

Yes indeed, Max! It is difficult to pick a favorite–especially from such a large collection.

Thanks again for taking the time to share these with us!

Click her to view Max’s collection via DropBox.

Spread the radio love

London Shortwave’s portable “spectrum capture lab”

4 Replies

SWLing Post contributor, London Shortwave, just posted a photo of his portable SDR setup on Twitter and noted:

“Portable spectrum capture lab back in operation. Grabbing the grey line hour on the 49 mb. Listening to Radio Fana!”

Wow! I love this go kit!

Looks like London Shortwave is running an AirSpy with Spyverter via SDR# on his Windows tablet.

Having played a lot of radio in the field, I think what’s great about this setup is the fact it’s all contained and properly laid-out inside the padded case. Simply open the case, deploy an antenna, and you’re in business! With all components inside the case, there’s much less chance a connector, battery, cable or SDR will be left in the field accidently. Quick deployment and quick pack-up time; that’s what it’s all about!

Great job, London Shortwave! I’m happy to see you’re back in the park capturing spectrum and logging DX!

Spread the radio love

Tropical Band DXing at home with Elad FDM DUO and Wellbrook ALA1530 active loop

5 Replies

Recently I have spent a little more time listening out for Tropical Band stations from my shack in Oxford UK, attempting to emulate some of the very nice signals I have previously recorded out on DX’peditions. The obvious problems with this (and they are numerous) include the relatively weak signal strength of many tropical band stations, the ubiquitous blanket of QRM, resulting in generally poor SNR, lack of space for a large antenna……need I go on?! Fortunately, the Elad FDM DUO has proven to be a very senstive and selective receiver, capable of, at times, incredible SNR, coupled with almost limitless signal conditioning options and SSB, SYNC, ECSS etc. Throw the Wellbrook ALA1530 active loop into the mix (not literally!) and you have a very powerful Tropical Band receive set-up. The Wellbrook is able to null most (although not all) QRM in my shack and that really can make the difference between simply observing a carrier and actually hearing audio. Clearly one cannot expect to hear DX at home under heavy QRM as well as you might outdoors, however, the following stations were logged in the past month or so, with respectable signals, with the ALA1530 indoors:

Video links also follow below, thanks for reading/ watching.

Direct link to Oxford Shortwave Log video; Radio Logos 4810 kHz, Peru

Direct link to Oxford Shortwave Log video; Radio Cultura Ondas Manaus 4845 kHz, Brazil

Direct link to Oxford Shortwave Log video; AIR Bhopal 4810 kHz, India

Direct link to Oxford Shortwave Log video; Rádio Educação Rural 4925.2 kHz, Tefé, Brazil

Direct link to Oxford Shortwave Log video; Radio Mosoj Chaski 3310 kHz, Bolivia

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

Spread the radio love

Gary’s Arvin Model 61R35 brings back memories

3 Replies

Many thanks to SWLing Post contributor, Gary Wise (W4EEY), who shares the following guest post:

It’s funny how much we radio folks share in common. The recent posts on Arvin radios made me smile because I have an Arvin radio too. An Arvin transistor was my very first radio, and here she is:

This is the Arvin Model 61R35 in Ice Blue (it also came in black). My parents bought it for me in roughly 1962 or 63. It was the first radio that was mine (though we did have an older Crosley tabletop in the living room of our house in Midland, Michigan that we all used). Mine had seven Germanium (!) transistors (as silicon transistors were not yet in wide production in the early 60s).

And Made in America! Arvin was an Indiana company as I recall.

It used a Round 9V battery. They were hard to find even back then, and I expect impossible to find today.

I used to love to put my fingers on the PC board while the radio was on and listen to the buzzes and noise that I could create. Unfortunately, I think this is what killed the radio and required my folks to mail it off to the big city (Flint, Michigan) to have it repaired. No one in my “little” town could fix solid state radios back then.

I was fortunate not to lose this radio in my many moves throughout the years. I display in proudly in my ham shack.

Thanks for the memories!

73,

Gary
W4EEY

And thank you for sharing your memories and the great photos of your Arvin Model 61R35, Gary! What a cute little radio–I’m glad you’ve taken care of it all of these years.

Spread the radio love

Myanmar Radio, Yangon, heard in Oxford UK on 49 and 41 metres

2 Replies

Hi there, I thought some of the readers of SWLing post might be interested in my reception of Mayanmar Radio, Yangon, during a late-night DX’pedition in Oxfordshire, UK. I managed to catch them on 5985 and 7200 kHz; the latter was a personal first and perhaps further confirmation that my 200 metre longwire is contributing in a positive way to my mobile listening post. Subscribers and regular visitors to Oxford Shortwave Log on YouTube will know that I am forever trying to push the performance of my vintage portables to the limit of what’s possible, in the hope that I might hear something very exotic. it’s happened once or twice and thus worth all the effort in the small hours. Thanks for watching/ listening.