Tag Archives: QSO Today Virtual Ham Expo

QRPer Notes: QSO Today Expo This Weekend, IC-705 Current Drain Explored, and DX Commander Channel Removed from YouTube

Because I receive so many tips from readers here on QRPer, I wanted way to share them in a concise newsletter format.  To that end, welcome to QRPer Notes, a collection of links to interesting stories and tips making waves in the world of radio!


QSO Today Ham Radio Expo, March 12-13, 2020

Many thanks to Vince (VE6LK) who reminds us:

QSO Today Ham Expo is THIS WEEKEND starting on Friday evening MT and early bird tickets are only $10 until the event opens Friday evening. Drop by through the weekend and find me in the Ham Radio Workbench Lounge in between presentations of course. Your entry fee gets you 30 days of video replay for those presentations you can’t see live.

Click here to visit the Ham Radio Expo and register!


KU3X Explores IC-705 Current Drain and Battery Packs

Many thanks to Barry (K3UX) who writes:

Thanks partially to your feedback, I purchase the IC-705 and I am one happy camper.

Icom states the current drain on receive for this radio is between 500 and 800 ma. So I tested the radio.

At 13.8 volts of supply voltage, the radio draws 200 ma on receive. What? At 12 volts the radio draws 225 ma on receive and at 11 volts, like off of a 3 cell LiPo battery the radio draws 250 ma.

When I made these tests, I removed the Icom clip on battery. Now going down to 8.4 volts, the radio draws 335 ma on receive.

So here’s the fly in the ointment: At 8.4 volts from the external supply, the radio would not transmit. It would not transmit at any voltage under 10 volts.

Conclusion….. there has to be a boost circuit built into the radio that goes between the battery and the radio. So to boost the battery voltage you will draw more current.

I posted my findings on my web page.

Thank you for sharing this, Barry! Funny enough, I’ve never thought to check current without the battery attached, but that makes sense. This would give us data knowing the radio isn’t using more current to recharge the battery pack at the same time. 

Typically, the lower the voltage, the higher the current drain and vice-versa. Also, I believe you’re correct in that there would be some extra consumption with the voltage booster in play. 

Thanks for sharing this!


DX Commander channel (temporarily?) removed from YouTube

A number of friends and readers have reached out to note that the DX Commander YouTube channel hosted by Callum (M0MCX) has been completely removed from YouTube. 

Callum’s channel is incredibly popular and this removal has everyone scratching their heads, so it’s no surprise there’s wild speculation floating around out there. Don’t fall into that rabbit hole.

I fully suspect that this is simply an error on Google/YouTube’s part and that his original channel will eventually be reinstated. 

In the meantime, Callum has started a second/backup channel where he’s posting content. Click here to check it out.

When his original channel is reinstated, you’ll find it here.

Eric interviews Paul Mower (VA6MPM)

Yesterday, while running errands in town, I listened to the latest episode of Eric Guth’s (4Z1UG) QSO Today Podcast.

Paul Mower (VA6MPM) via QSO Today

In this episode Eric interviews Paul Mower (VA6MPM), a SOTA enthusiast who lives and activates summits in the Canadian Rockies.

It’s a fascinating interview because Paul hikes to incredibly remote regions of the Canadian Rockies and is a member of the Alpine Club of Canada, where he helps to maintain their backcountry huts.

I don’t do the type of trekking Paul does, so it was intriguing to hear him speak about issues with keeping batteries warm in -30C temps and operating in what I would consider extreme conditions.

Click here to check out this episode on the QSO Today podcast website.

Funny: As I started listening to the QSO Today episode, I thought Paul sounded familiar then realized that Paul was one of the presenters of the QSO Today Virtual Ham Radio Expo in August. Here’s that presentation–well worth your time:

Paul Mower VA6MPM and Michael Johnson WO9B – SOTA in the Canadian Rockies – with Questions & Answers from QSO Today Virtual Ham Expo on Vimeo.

 

QSO Today Virtual Ham Expo this weekend!

Many thanks to Pete (WB9FLW) who shares a reminder that the QSO Today Ham Radio Expo is this weekend.

I missed the last QSO Today Expo and heard that there were numerous technical glitches. Eric Guth (4Z1UG) has repeatedly described that experience as one of the most stressful in his life. He is making sure that this Expo will run smoothly by keeping all of the presentations and experience on the same platform. Eric is an amazing fellow and has gathered an outstanding group of speakers (over 90, I believe) and has made it so that if you can’t attend live, you can watch the presentations, on demand, for 30 days. Here are a few details from the QSO Today Virtual Ham Radio Expo site:


QSO Today Virtual Ham Expo

Opens: August 14th, 00:01:00 UTC or August 13th, 5:01 PM PDT

  • Full Registration is $10.00 US – includes full access to the Expo, including presentations, 12 subject video lounges,  and to the 30 day on demand period.
  • Full registration will increase to $12.50 at the door when the Expo opens.
  • Free Registration is limited to lobbies, exhibition hall, exhibitor booths, and prizes offered by exhibitors.  If you already have a free ticket, you can upgrade with the button below.

Click here to check out the presentation line-up and register early!