G-0112 4th Feb 2024 + Webtechnology site updates !

Posted on February 4, 2024 by webmaster@hamradio.knipmeyer.co.uk

had spring come early ? The sun was out today!

Some lovely sun kept the chills off today with flowers blooming and when it reach mid afternoon looked like turning into a great afternoon evening, I thought it would be great to make an impromptu visit to Bolderwood to try a PoTA activation.

compare to Janurary temptures, I was basking in the winter sunshin at a 12 celsisus !

I had everything packed away, i did one quick check for the power beiing packed, which it was, but had no idea on the battery level of the laptop, I knew I had used it recently so it shouldnt be too low. I headed off and it was great to to Bolderwood which whilst still pleasently busy, didnt feel over crowded. I’m sure this will change even by the end of the month !

I was on the air in no time, with the Alexloop attached to the bench with a bungie and hooked into the IC705, it was easy to tune into 30m to start with for FT8. I chose 30m as I had alot of contacts at home and its not a band I used /P for POTA before, I made 4 contacts within 10 minutes, so wasnt disappointed. I then moved to FT4 on 20M – it was *busy* even finding a gap in FT4 was getting tricky, but I was glad to find a gap and get out. The laptop was down to 40% power by now, so I stuck it in energy efficent mode, which kept the battery going without issue and no adverse effect on the radio/USB connection.

using the laptop energy efficeint mode to extend the life the laptop

I was pleased with a series of rapid FT4 QSOs on 20m, i later learned these where all PoTA Hunters – whilst I’m amazed by them all in the distance, ranging from Austria and Spain in Europe, it was the DX contact with KC1MMC that blew me away – 3217 miles on 10W of power on a mag loop, I was really happy to say the least.

As the sun went down the volume of QSO’s on 20M just kept rolling in, from 17:17 to 17:25 I was having a QSO on FT8 every 2 minutes ! I had to call it a day as it was getting dark and wanted to get my equipment put away safely, but I think I enjoy coming out at dusk – maybe a small lamp or pen-light will be worth bringing next time.

14 contacts, 5 POTA hunters made happy !

This was a really enjoyable PoTA outing with minimal planning, I was really impressed how well the antenna done and the PSK Reporter picture shows, it can really reach the entire planet !

Digital modes doing really on 10W of power

I have seen videos of great QRP Contacts and am wondering how well I would do, I really think I should give it a try the next time I am out as the setup really impresses me and think it should be good to make some telephony contacts.

Making contact with KC1MMC on 20m FT8

Webtechnologies website update – WSPR Bands added !

I’ve been making monthly updates to my webtechnologies site, which last month I got back up and running so the code would scrape the data from the ‘updated’ WSPR old-db. I’ve now added sections that allow filtering by band. This is all transmitted via the 6BTV which is doing an excellent job of getting out on all 6 bands it is setup for.

Webtechnologies site – now with spots per band functionality.

I’m aiming to keep building more features for the website each month, just small incremental changes, but I’m sure will keep adding making for a feature-rich site. There is so much that can be done with WSPR data, I really enjoy using this mode and its great ot use my programming skills for amateur radio also. Check it out at the webtechnologies site.

G-0112 – Bolderwood New Forest, Alex Loop to the rescue

Posted on January 7, 2024 by webmaster@hamradio.knipmeyer.co.uk

With another bright but cold day, it was a good time to get out and get on the air. This time I was packing my trust Alexloop Ham pack antenna along with the IC705, determined to make an activation on my 3rd attempt from Bolderwood.

WX – I caught the ‘warmer’ part of the day at round 9 to 7 celsius

I was no sooner out the car and onto one of the many available benches and quickly setup. The alex loop was out the bag and with a bungee hook strapped pretty tightly to the bench. I tuned for 20m and got a great SWR of between 1.3 and 1.4 but no more than 1.5 and 10W of power. The FT8 contacts came rolling in, and with a busy 20m FT8 was then onto FT4, for even quicker overs.

It was great to get a mobile phone signal as I tethered my laptop to the phone wifi and could upload my contacts directly to QRZ via the excellent grid tracker application, I still kept a manual log so it would be easy to confirm the order and QSO’s I had today. The Reverse Beacon Network and POTA app was doing me a great service, as quite a few of my contact were POTA hunters. Getting 10 contacts in under an hour was great given just how cold it was, it was nice to see 5 of the contacts are POTA hunters.

I gave SSTV a go, but the signal where coming in thick and fast, I started to see a response to my transmission, but another station came in over the top. I try to use Robot72 and BW12 to keep my over time on 14.2300 short, but most people dont QSY on SSTV, and even then we tend to get other people talking over the SSTV CoA on 20m as well..

Still, having uploaded my ADIF file from WSJTX to POTA I was soon awarded my 2024 activation. Just in the nick of time ! A good start to POTA in 2024 !

POTA 2024 Award – a good start to the year

I am really excited about getting out and do more POTA – its a great start to the year !

73, Alan 2E0FWE

POTA from G-0112, cold but worth the effor

First POTA of 2024 – G-0112 New Forest (again)

Posted on January 1, 2024 by webmaster@hamradio.knipmeyer.co.uk

So with new choke packed away and bringing the battery pack, i headed out to Bolderwood in the New Forest, arriving at around 10:15, it was still pretty quiet and I had pick of parking spaces and benches.

I then setup the IC705 with the Toybox antenna and radials, which I found getting the radials out much easier this time. I was able to get the SWR down on 17m to a 1.6~1.7.

With the antenna setup I then connected the 705 without the MAT Tuner to start with, having the large battery with me was really good as it support the LC IC705 bag nicely keeping the antenna and bag vertical. I then went about attachign the choke-wound usb cable to the laptop.

As soon as the USB cable was attached, the QRM returned ! I could hear the FT8 stations coming into WSJTX without problem, but again when hitting transmit, the audio disconnected. Whilst the QRM was much reduced, there was no doubt it USB cable and laptop was still effecting the radio. I went ahead and the MAT autotuner, to see if that improve the situation, i.e. would it act as any kind of choke between the radio and antenna.

The introduction of the MAT Tuner had no effect on the QRM, although I could see that with the longer coax between the tuner and antenna, I could potentially try putting chokes on here also. I disconnected the radio and just tried calling CQ on 17m QRP frequency, but to no avail. I could pull in signals and I tried jumping on the back on other QSO’s but think I wasnt getting out at all with the little whip antenna.

So I think whilst I have other options, I will explore those as well, I have always done well with the magloop, and its a great antenna, but the one I really want to try is the UK Antenna 40M EFHW, but currently my SOTA Beams mast is damaged from its first and only outing. I explored the website and was able to order the 3 replacement broken parts, which only cost £17.28 with 1st class postage.

The 40M EFHW UK Antenna – the next one to try when the replacement mast parts arrive…

I will continue experimenting with chokes and the Toybox antenna at the QTH before going back out with it again, I think with enough power, it would work well as a portable antenna, with QRP/10W,its giong to be hard work to get on the air with it…

Until the next time, 73s !

2E0FWE

IC705 USB Cable Choke

Posted on December 31, 2023 by webmaster@hamradio.knipmeyer.co.uk

So a quick update, having received the 5M USB cable and cable ties, i then went on to test out the choke method to reduce/remove the inteference from the IC705 as shown by Temporarily Offline Ham Radio video included yesterday.

The RF Choke comes from here, as I dont suffer RF back into the shack thanks to the EFHW and RF Choke on the feedline, the PSU Choke was not being used. Winding the toride was made quite easy by the fact the choke can be opened up and wound up, once secured with a a couple of cable ties it was easier to put the turns into specifc locations, tighten the cable wraps up, then cut off the excess.

WSJTX in action – no sign of disconnects or loss of audio

I tested MMSTV and WSJTX into the 2M Comet Whip antenna, everything worked fine with no issue of disconnected audio or interference into the radio or the computer. I’m looking forward to taking the setup out and trying again with the Toybox whip antenna to see how it does this time out.

Testing the IC705 with the RF Choke USB cable and laptop with MMSTV and WSJTX

Final POTA of 2023 – G-0112 New Forest

Posted on December 30, 2023 by webmaster@hamradio.knipmeyer.co.uk

So having got everything ready and with the weather, whilst chilly, was ok to go and venture out with the radio. I scheduled on the POTA activation website, and headed off to the New Forest to Bolderwood.

The drive in the Hyundai i10 was fine after its recent service, and was good to stretch its legs on the lively A roads in the area. For a small car its got a decent enough poke to make the journey without issue, as I was just carrying my IC705 and a few drinks.. I did notice I had left my ‘large’ battery behind – so I would be running real QRP from the 705’s internal battery and limited to 5W – still, i was nearer bolderwood than I was home, so pressed on.

I de-tangled the the 30 meters of radials, this took me a little while, but nethertheless wasn’t too problematic, the ends of the radials have a nice round terminator which makes de-tangling more a case of pulling the cables thru, rather than unpicking a ‘rats nest’ of wire (plenty of experience with the DX Commander and radials there!!!) I used the rig expert on 17m got the SWR across the band down to 2.1:1, which for a compromise antenna was ok.

I hooked up the laptop via Wfview, Virtual Comport and WSJTX. Signals came in no problem at all, and decodes appearing in WSJTX without issue. I then tried to TX, the SWR measurement was the same as the Rig Expert, but oddly the TX ‘pulsated’ as if it was getting disconnected. I went thru and checked the settings once more, no difference between home and here, only delta was the antenna. I tried the USB cable I had packed away to remove wifi/wfview/audio port as an issue, but the noise level went thru the roof! So I went back to trying to get wfview to work, at least at home on 2M I did get out (suprisngly!).

it was not to be my day to make an activation….

As I continued to try to connect, I checked PSK report on my phone – not a single RX. I could only put this down to the combination of the antenna and using wfview, as with a magloop and 5W on an ipad, I would at least get out, and as other POTA activations showed, worked without issue.

With 0 contacts and a slight piece of rain, i forgo the activation and headed home determinted to find out what I could do to solve my WSJTX TX issue.

TX issues with the 705 and using the Toybox antenna

Once home I searched around youtube and found several useful videos and this one demonstrated exactly the issues I faced when using my USB cable.

USB = QRM

With that I searched around the house, the longest USB cable I had was 2M long, and wouldn’t take many wraps of the toroids I have, so have ordered a 5M USB cable and some cable ties from Amazon, hopefully they will be here tomorrow, then I can try USB with a nice toroid to see if that removes the QRM.

I also thought that I should of tried with the ATU between the radio and antenna, as I think that would of also acted as a ‘common mode’ choke, but will try the USB route first as that looks the most promising solution at the moment.

Until next time (which is hopefully early in the new year) 73’s !

WSJTX, WFVIEW + VBAudio

Posted on December 30, 2023 by webmaster@hamradio.knipmeyer.co.uk

With getting reading to go POTA next step was to check the PC hardware, I previously used an apple tablet for IC705 wireless connectivity, but this lacks SSTV which I like to use. First step was to get my very old HP Pavillion laptop up and working with the IC705 !

First step was to retrack and setup the settings in the IC705, for this the first part of this video got the required settings. The app to control the radio here is Icom’s own, which I dont own a copy of, but it sets up the Wifi and necessary settings, also like that its a profile which can be easily loaded/unloaded.

setting up the IC705 for Wifi operation (first half applicable)

With the wifi setup correctly (I had to adjust the audio filter bandwidth and CI-V Echoback to OFF) I then set about setting up wfview, using this tutorial.

IC705, Wifi, VBAudio, Virtual COM port

This got me to the point whereby I could receive fine, but transmit didnt produce any audio, I rechecked the settings on the radio that Inputs/Connectors/Data MOD=WLAN and no issue there. I check wfview and the settings are correct, I did notice my version of wfview was 1.5, so check the forums, sure enough, others had the same problem and was fixed by an upgrade.

I downloaded the latest wfview and installed. I did notice this didnt overwrite the previous version, so I found the new version (C:\Program Files\wfview) and made a nice desktop shortcut, the registery settings had kept the config, so no need to re-enter all those thankfully.

I attached a Diamond RH770 2m/70cm antenna to the the 705 in the shack, just for something to transmit into, RX was flooded with QRM from all the computers and screens, but amazingly with 5W of power I was picked up by WESSEXSDR!

So.its now all looking good to use my oldlaptop with newer versions of wfview for at least WSJTX control. Hopefully just pointing MMSSTV and the virtual com port (10) and audio to VBAudio will get that working, but will wait until I have a HF antenna hooked up to test that ;o)

Egg Beaters – for the hard of hearing

Posted on December 25, 2023 by webmaster@hamradio.knipmeyer.co.uk

Firstly Merry Christmas ! Its a relaxing day here and not the usual busyness for a Monday! Having an extra two days for the weekend has been really nice, I’ve done loads of other stuff and also playing with IC-9700 with the satellities, or attempting to, would be more accurate 🙂

So far I’ve heard zilch, as in nothing, not a tweet from a ‘bird’ I looked up Amsat’s tracking of sats other had heard, so would be confident that I should be able to hear them too, alas to no avail. I then tried FT8 on 2M, I was getting out just fine with the eggbeaters, but not hearing a thing, I did notice some very high peaks of QRM on the WSJT-X ‘scope’, so my first step was to move the antennas further from the house and a better line of sight of the sky to the horizion, which accomplished, well, nothing.

I then tried SSTV via a my hand held units into the IC9700 and MMSTV, this worked fine, so the 2M antenna was at least receiving and transmitting. I went to 70cm and found a clear frequncy and gave the same SSTV test, this worked fine… so what was going on ? Ok simple test, lets swap antennas between the Diamon X3000 which goes into the Kenwood, put that onto the 9700. Again,

No problem getting out with FT8 and no problem on SSTV. I tried WSPR with 5 watts on all three antennas, the egg beater 2M worked fine.

I then checked thru the IC9700 settings, all good there and used the manual ATT/P.AMP switch on the front of the radio it self, what I noticed was that the internal preamp did increase the signal, but with the external pre-amp there seemed no increase in performance.

What I suspect is happening is that my mast-head pre-amp is designed for a single feed of coax into it, then into a single verticle antenna, where as I have splitters each end for taking the coax and seperating out the 2M and 70cm bands. By the reckoning I can hear local 2m fine (including MB7IPD) on the egg beater, I suspect that the 70cm RX is doing nothing, although the antennas resonent for TX, I think the multiplexer and multiband masthead are not working together correctly.

As its getting dark now, and have the luxury of another day off tomorrow, I will research which sat’s are most common and which band the RX is the most common, then I will setup a single feed for that antenna into the mast-head amp, and run two feeds from the egg beaters, then I should be able to find out if its the egg-beaters/coax/multiplexer causing the lack of ‘ears’.

Until then, 73’s

2E0FWE

Back on Top Band – is it worth it ?

Posted on November 24, 2023 by webmaster@hamradio.knipmeyer.co.uk

Having got the ‘shack’ into somewhat more operational functionality I pondered adding back in the MFJ Auto Tuner – I originally purchased this when I was using home-built vertical antenna and in that it could seemingly tune anything to matching the impedence of the antenna to the transceiver. With the 80m end fed, which does a excellent job across all its designed bands, it became a little redundant and sat in the ‘spares pile’.

With the recent ‘ham shack’ rejig and spotting the tuner, I’d thought Id give it another try, as digital modes on top band can experience some interesting propergation and having recently got the weather station back on line ready to start re-building the webtechnologies for WSPR data, seemed a good reason to at least put it back in place.

MFJ ATU under the IC9700 doing its business on top-band WSPR

Fitting in the ATU wasnt as straight forward as planned – the additonal ‘gaps’ in the bookshelf paying off to allow the ‘sturdy’ coax of the ATU to the 7300 to be in place. I did attempt mounting directly underneath, but it was becoming more of a mess than it already is. With a rejig and some persusasion, the ATU was in place and functioning correctly.

I started out on FT8 – there was plenty of traffic on top-band and managed several QSO’s as well as seeing how well the antenna was doing being matched to 160M with 50W of power.

Having enjoyed a pleasent evening out and the fresh air of Poole Harbour, I resumed my work in the shack and started WSPR transmissions on 160M with 1W of power. I’ve been doing 10M during the day, and its been geat to see the data of how the propergation really varies and almost to immediate effect when the sun goes down, so it would be good to see the inverse of that. I was not to be dissapointed !

Suffice to say, the ATU was doing a great job in matching the antenna and still with a decent amount of power being transmitted on WSPR, the MFJ reported between .5 and .7W

Needless to say, as someone who enjoys digital modes and analysis of the data produced, its great to have this added functionality back. With the steady stream of WSPR data becoming available I’m looking forward to updating the webtechnologies site ready for early next year, so the MFJ will be staying for the foreseeable future ! Yes it is worth it !

New Forest POTA G-0112

Posted on May 8, 2023 by webmaster@hamradio.knipmeyer.co.uk

With a second bank holiday in quick succession and the WX predictions for the bank holiday being ‘traditional’ I made a impromptu POTA activation in the New Forest. Whilst its not my nearest POTA, there are plenty of nice quite places to go, so I headed off for a evening of radio fun !

As is norm for me, I started out with FT8 – or should I say after some reacquainted got started with FT8 ! As I wanted to do SSTV I used my old laptop and USB cable. This has been running at home nicely for months for WSPR via the IC705/Laptop combo, sure enough, go out in the field and it starts playing up ! Firstly experienced disconnects on WSJTX on anything above 5W, and remembered that I had setup the 705 to be a 7300 to allow MMSSTV to use the same ‘hex codes’ – once I got the power and connection sorted, was soon on the air and the QSO’s started coming in. 17M was very busy but propagation good, the magloop and 5W was getting me all over the world, was very glad to see several contacts into the states from POTA hunters.

5W into magloop on 18 and 20m (FT8 / FT4)

I was soon getting drowned out on FT8 on 17m, so switched to 20M and FT4, whereby i was able to get the 10 QSO’s needed to activate the park. I then switched to SSTV. Receiving was fine, and the absence ‘noise’ produced fantastic RX. I thought I would give it a go, even tho I was ‘limited’ to 10W.

A very good signal came in from OK1DNT and was reward with a 595 signal report on 10W ! I was overjoyed that the magloop, low power and noise floor worked so effectively. It really was a highlight for me and I think I shall work out how to the webcam on the laptop to capture some ‘live’ PoTA pictures, each time I’ve tried SSTV on PoTA, I’ve made a QSO, so it is most defineatly a viable mode with QRP power. Thanks to OK1DNT for the QSO as well !

I headed home with the Retevis RT73 working nicely doing its APRS positioning beaconing. Whilst the RT73 doesn’t have the TNC/Packet capabiilities of the THD7, it nethertheless does a great job of position reporting. I did struggle with updating the message, but I got it to read ‘POTA G’ I struggled to get numbers and symbols, so will investigate that next time. The RT73 is a ‘neater’ solution for 2m/70cm operation, tho admittedly I’ve not a QSO on it yet !

En route i encountered the lovely horses/ponies of the new forest. I do love the nature and animals in the beautiful scenery.

Once home and unloaded from the Bongo I set about logging. I always use a manual log, even for digitial modes, incase something should happen to the computer/device I used. I was pleased to see some very cool new features on the POTA website, in that its possible to create a manual log via the PoTA page for submission.

I watched a video on how to do the manual log, shown below and it was easy to follow and create my own log submission.

POTA Manual Log Entry

Sure enough my log submission was done, it was so easy ! Also I could export the ADIF file and upload to QRZ

Whilst the frequency and signal reports were not the ones from the event, it did at least have the time, band mode and contact, not bad at all and acertainly allot easier than when I first started POTA last year.

Overall, despite the early technical frustrations I really enjoyed this activation, it has made me think about a PoTA strategy for digital modes, i.e. use the mac ipad for FT8/FT4 and laptop for SSTV, if the ipad app had SSTV capabilitiy, that would be amazing, but its a great app as is being totally ‘wireless’. Still, I look forward to more PoTA as the year go on !

Thanks for reading and 73

Telephony QSO’s – What me ?

Posted on January 23, 2023 by webmaster@hamradio.knipmeyer.co.uk

So my biggest constraint of amateur radio activities is, yep, time. Mostly I run WSPR and monitor via the webtechnologies site for how well the IC705 and 6BTV are doing, as well as pull in the automated SSTV broadcasts from 20m available here.

So why the sudden ‘burst’ of telephony QSO’s – mostly thanks to scheduled (scheds) transmissions, firstly the most excellent 145 alive event organised by G5TM and then the regional contacts that setup out in the field.

2 Meters Alive event by G5TM

I was lucky enough to contact G5STU who setup nearby – very line of sight, but was great to hear all the other people in. I did manage to make one other contact on the ‘net’ but left it to those with better setups to enjoy the QSO’s, it was great to listen in !

G5STU – 145 Alive

Not one to rest, G5STU then setup a live stream of his activity on 40M – based in Poole ! I thought I had to give it a try, to me on 2M Poole harbour is complete black spot due to the hills between the east side of Bournemouth and the low side of Poole, so thought it worth a try to have a QSO with G5STU, sure enough, was my first HF contact so near, was great to get in the log book.

So whilst I’ve been manicly busy, its been great to take time out for those that organise live events that are fun to join in with – I’ve scheduled my next PoTA – which will be at night during the week ! So am looking forward to that, I have no idea how I will do, but the main thing is to get out and enjoy radio.

In the mean time, I’ve setup the MFJ993B to get on top-band at home, and am able to hear the various ‘nets’ that occur, as well as get out nicely on FT8 mode, having made several QSO’s on top-band on a non-resonant 80m end-fed antenna, i was very happy that the MFJ993B got some action !

So, hoping the end of January and start of Feburary will allow more time for radio, more project parts are arriving, allow things to progress on the VHF/UHF and Microwave bands, so excited to tell and show more about that 🙂

Until then, 73.

2E0FWE Site

HAM Radio activites of Alan K.

Category Archives: FT8