UV-5R programming again – and USB drivers!

Last weekend I decided I wanted to put four or five new frequencies into the memories in the UV-5R. No drama – I got out the USB lead, plugged into the laptop and was about to start the programming software, when I noticed that the driver hadn’t started properly – no Com port available!

Odd – it was fine last time I used it. So I tried reinstalling using the installer. No luck. Tried another version of the installer, no. Tried a generic driver. No. Then I remembered there was something funny about having to manually install ser2pl.sys. No.

After all this about an hour had passed and I only wanted to program about 6 simplex frequencies in. My patience was exhausted and I decided to program it manually.

This weekend I found the original install CD for the programming lead and I thought – great, I can definitely make it work now. Plugged the lead in, ready to set up the drivers and…

Yes, you’ve guessed it, it worked straight away without me having to reinstall or do anything. Why? I have no idea…..

The changing seasons – with an eye on propagation

Living where we do in the country, we feel the change of the seasons quite intensely. Far more so, I think, than when I lived in a town. Here, I have cried with happiness to see the first blossom on the cherry tree signalling that the darkness of the Winter is behind us – and the first sighting of a swallow or swift back from Africa in the Spring is something that never fails to bring me joy.

From a radio point of view, just as welcome, in the Spring, is the return of the Sporadic E propagation and I realise that it is a milestone of the year which makes me happy. So, since May I have been happily employed working as many Es openings as I could on 50 and 70MHz and have been thrilled by the contacts I’ve had. It’s a form of propagation that continues to fascinate me year in and year out. This year, having 27/28MHz in the car to monitor propagation as provided extra interest.

But the Es openings though not gone, are less frequent than they were a month ago. Over the last week, I have noticed, not only a changing quality of light, but a changing in the propagation in the morning on 144/433MHz. As the nights are cooling down a little bit more, the first couple of hours or so after sunrise see some ‘local’ enhancements with VHF/UHF repeaters 50 to 100 miles away coming through better and then fading as the temperature of the day rises.

Like it or not, and I must say, I do not, Autumn is on the way.

Chirp update

I had the chance to try Chirp, simplex  on a couple of PMR446 radios with Julie this evening. We still didn’t manage to exchange Chirps on air. Having tried the test simplex, that’s eliminated the audio circuitry of the repeater from the first test. My guess is that we’re not getting the audio bandwidth we need.

However, the lovely people from the Chirp team have been in touch, so we’ll see what we can come up. It would be exciting to get something working.

Perseids 2012 – part 2

After the Olympics closing ceremony had finished at around 0030 local time 13th August, I set the WSJT gear up monitoring 144.370 for a second night.

As to be expected a bit less activity but still some nice reflections:

SP4K
I8KEV (Best reflections of the night!)
DL0HOF
ON1IM (Probably tropo or backscatter)
S51AT (Great consistent reflections)

Very encouraging to have copied all these stations. I’ve got the 2m PA available again now, so ought to be able to run enough power for some MS tests, even with the little antenna. I think it will be something fun to try over the quieter conditions of autumn and winter.

Sometimes the interesting QSOs aren’t the long-distance ones

I think I’ve reflected before that sometimes it isn’t always the really long distance contacts that catch your imagination. Yesterday was an interesting day, although I didn’t really have any contacts that I would have called DX – but they were still interesting from a propagation point of view.

It started off on 70MHz with a QSO with John, G3VHH on MB7FM, the 70MHz parrot in Tring. It was an interesting QSO and one of the first I had on FM using the new transverter setup. Just after lunch, I noticed on Twitter that Ken G0PPM said that he was in Wales and calling CQ on 50.150. I nipped upstairs and to my surprise could just hear Ken. Not well enough to do much other than exchange reports, but not bad for a mobile to – vertical contact at just over 110km. Ken then asked if I could try on 28MHz. I said I could, but didn’t really expect to hear him. Although I couldn’t hear him on SSB, we were able to complete a rudimentary QSO on CW quite easily which was fun.

Later on, Julie and I decided to go for a walk up White Horse Hill and I threw the IC-E92 in. As we were sitting, enjoying the view from the top of the hill, I had a tune around and could hear M0JLA/P talking to Stewart, G0LGS in Cheltenham. After they signed, I rather hopefully called Rod, M0JLA and was pleased when he came back. It turned out that he was on a SOTA summit near Presteigne in Herefordshire, not far from the Welsh border – a distance of 120km or so. Rod was using a beam, but I was just using the little rubber duck antenna, so felt quite satisfied with the contact.

All interesting contacts and a little bit out of the ordinary.

Perseids 2012 on 144MHz

I haven’t really got myself out of 50 and 70MHz Es mode yet, so still really only looking for those openings – which are getting a bit less frequent now. However, realising yesterday that it was the peak of the Perseids meteor shower, I thought it would be a good time to see what I could hear using the digital modes – as now have the interface mentioned earlier in the year.

Last night I setup the FT847 on 144.370 which is the FSK441 frequency and set the WSJT software running in monitor mode to see what would happen. When I looked at the ‘log’ this morning there was plenty of interest and quite a number of stations heard:

DK1CO
S55AW
PA0BWL (tropo or backscatter?)
DK1KH
F1JQM
EA3AXV (one of the outstanding signals for me – copied many times)
DG1WEH
PA3BIY
DL3MBJ
S51WO
YU7TRI
IN3FFN
S50C (another outstanding and consistent signal)
YO2LAM (probably the best DX)
DL0HOF
PA5KM (tropo or backscatter)
I1RJP
F1HQM
SP2HMR
F6APE
SP2OBQ

Well, I probably should have spent some time trying to make some QSOs, but actually I was quite happy to see what I heard and I am delighted with this haul. The antenna here is just the little 5 element, so this was probably more about strong short reflections rather than longer but quite weak ones that you get when you aim closer to the horizon with a long yagi.

It’s not all over yet though and it will probably be worth setting the receiver going again this evening.

Experiments with Chirp – sending an audio URL….

In amateur radio terms, Chirp is an ambigious term! In this context, we’re not talking about your CW transmitter warbling up and down the band and we’re not talking about a neat package for programming your handheld.

Two or three weeks ago, Rory Cellan Jones presented an item on the BBC about an application called Chirp that runs on smartphones. It provides the ability to transfer files between devices using audio.

Let’s say I’ve a picture or a URL on my phone that I want to send you. I start the Chirp application on my phone, as do you. I select the photo that I want to send you and press the button. First of all, the application quickly uploads the picture to the Chirp server. Once it’s done that, it sends a series of tones which your phone ‘hears’. The tones act as like an audio QR code and provide your phone with a URL with which it can access the picture that I uploaded.

Julie and I have been using Chirp to transmit photos between our iPhones and iPads – it’s easier than emailling photos back and forth.

The other evening I was talking to David M0TFY on GB3WH and we were talking about Chirp and we wondered whether it would work on the air. After all, how often do you want to send someone a URL or an email address over the air? If you’re like me, pretty frequently! Something like Chirp would work well.

Our experiment of using Chirp using our iPhones miked into the radio across GB3WH failed. However, I’ve a feeling that if we tried simplex we might be more successful – my suspicion was that some of the tones that Chirp uses were not being passed by the audio circuitry of the repeater.

Even if the Chirp application doesn’t work over the air (which I think it probably should) – it might be an interesting project for someone to write something that would use tones that would pass over the air readily and robustly to send URLs or eMails…

The Chirp application is free and runs on iPhones. You can read about it here or download it from the App Store.


Subscribe FREE to AmateurRadio.com's
Amateur Radio Newsletter

 
We never share your e-mail address.


Do you like to write?
Interesting project to share?
Helpful tips and ideas for other hams?

Submit an article and we will review it for publication on AmateurRadio.com!

Have a ham radio product or service?
Consider advertising on our site.

Are you a reporter covering ham radio?
Find ham radio experts for your story.

How to Set Up a Ham Radio Blog
Get started in less than 15 minutes!


  • Matt W1MST, Managing Editor