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.
toride and USB cable wrapquite a few turnsNo interference on IC705
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
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.
radials on the floorradial connection to toyboxSWR 2:1 without ATU
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.
FT8 RX 100%TX = ooopspulsating TX
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.
a variety of ham specific toroids
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 !
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)
Its been quite some time since I’ve been out and done a Parks On the Air (POTA) activation, but with the year coming to an end and a bank holiday for a day off, it as good a time as any to get outside and get on the air !
The IC705, when used, has mostly be used in the shack. I tend to use it on the 6BTV antenna and keep the 7300 on the End-fed Half-Wave (EFHW) for SSTV and other digimodes.
At the moment my Mazda Bongo is awaiting a garage visit due to a poorly alternator (its 27 years old…) so I will be in the Hyundai i10 (to be my son’s car once he passes his test), hence I will be working /P !
Hyundai i10, compact and cheap to run!
I will be taking the IC705 in its LC192 bag, some may say that this is a branding gimmick, but this bag suits the 705 so well, its brilliant! I’m going to the extreme on portable option of using the Comet Toybox antenna. This antenna tends to get pretty slated, but when I’ve taken the time to set it up myself, found it works really well, even with QRP operation.
Toybox antenna
I’ve previously made a video of me using this from the QTH, showing how I tune and make a contact with it, but this will be my first time using it for a POTA activation.
IC705 and Toybox antenna in use
I’m getting all the parts together again, making sure that batterys and the mat705 ATU are good for operation.
MAT tuner charging via USBgigantic battery charging up
WX for around IO90
I’ll probably be heading for the New Forest, as there is plenty of places to park up and get the radio out, i’ll be logging old school pen and paper and using the upload feature once completed.
Hopefully the weather is kind to me and I get out, I have work to do on the eggbeaters still, and thats going well, but will put that in another post, for now, determined to get out with the radio and make some contacts!
Not much happening on the amateur radio front I’m afraid. I did have some very good SSTV QSO’s the other day 80M – quite a few in fact ! With that I have been quite poorly with a cough and a cold, hence the COVONIA which has come to the rescue !
I’ve had a large amount of medicine and allot of sleep which seems to have restored me to at least being able to type up my blog. I was determined to get the BONGO going as well, as the fuel filter had arrived. It took a bit of labouring to get the fuel-filter to fit back on the chassis, but sure enough the bongo is now back in action !
Webtechnologies site updates
Other than doing hands-on radio I made some updates the webtechnologies website which captures all the WSPR transmission reception reports. Basically I’ve made it much simpler and requiring allot less maintenance, with better integration into Git with a fully functional CI/CD pipeline. I had this in place already, but it wasn’t quite perfect, so with a chance to sort it out, I’ve reduced the features (FAX pics and KIWI SDR) and kept it to just WSPR reports and Weather from the the local weather station here at the QTH. This will allow me to develop new features for the site as time allows..
Next POTA
With the Bongo back in operation, i’m hoping to get back out and do another POTA activation soon. I still have a pretty full February now but am determined to get out and on the air, hopefully this time with a UK Antennas 40m multiband end fed. I’m not sure I can squeeze POTA in this month due to commitments, but will see how things work out, rest assured, I will be looking to get back out and on the air thou !
Thats all for this week, please keep well and thanks for reading the blog.
Its been quite some time since I’ve had the Alexloop Hampack, and with my QRP, /M and /P work becoming more ‘regular’ (at least one per month) – thought it time to share my views of this antenna system.
Alexloop hampack
Its hard to imaging, but its been just shy (April 2021) that I have had this antenna in my collection. This has given me plenty of opportunity to use it out in the field and for experimentation at home.
I bought this antenna to pair with the Icom IC705, which is undoubtedly an excellent transceiver in its own right – with excellent selectivity and filtering, its a question of putting the right antenna onto it.
The Alexloop Hampack – the good
Lets start what is good about the Alexloop Hampack. All these observations are based on my own usage, so whilst not scientific, they are at least practical and proven.
Its easy to setup
The Alexloop HamPack is very easy to setup. I can arrive at my operating destination and be on the air in minutes. There is no setting up a mast and throwing a wire, there is no tuning a vertical and getting the SWR 1:1 – i can get this antenna out the bag, onto a stand and tuned into the frequency I want to use very quickly. The LED showing the output might look a gimmick, but I can assure you I use this as a visual reference and then checking the radio’s SWR every time I setup or need to retune the antenna.
Its very selective
Now for some this might be a negative, but so far for me its been a positive. When I’m working /M or /P, I am limited to 10W. What I don’t want is to pick up every other station just slightlyoff frequency, and for sure, the AlexLoop gives me that. I can match my IC705 filters to the AlexLoop and get excellent input.
Its designed for and good at portable use
The AlexLoop Hampack bag is very well thought out. It comes with a excellent way of storing the main loop and then the tuner and other parts of the transceiver. I also own ICOM’s LC-192, which is an exemplary piece of portable radio design, however, even thou when I operate /M, I want to reduce the amount of baggage that I take, therefore I stick to using the Alexloop Hampack bag on its own, and regretfully the LC-192 is left at home ! With that, you can be sure if you *dont* have an LC-192 and are considering getting the Alexloop Hampack, the bag will suffice. It is not as good as the LC-192, in terms of access ports, padding and having a full functional HF/VHF/UHF transceiver system on your back, but for HF bands, the Alexloop Hampack bag *will get you on the air*
The bad
The price tag
It almost goes without saying, the biggest ‘bad’ of the Alexloop Hampack is the price tag. When I bought mine in April of 2021 it was £505, now an Alexloop Hampack will cost you up of £600. That is allot of money for an antenna and it really needs to justify its cost.
Using in the field
As I’ve said above, I found using the antenna in the field for QRP /P and /M incredibly good. However, not everyone is running an IC705, there are many /P or /M operators that have good transceivers that can push out 100W. The Alexloop is not designed for, and should never be used for values above 20W on SSB and 10W on Digital modes. If you have perfectly good transceiver already capable of powers above these, then is the AlexLoop Hampack the right antenna for you – I would say probably not, especially if you already own the transceiver, however, if you are designing a /P or /M solution from scratch, my answer would differ…
The Ugly
So is there anything ugly about a so well designed antenna. Well, I for one can say there is. When I received this antenna I found assembling it ‘awkward’ – that is getting the loop over the centre pole. This resulted in a nasty ‘nic’ getting into the loop coax.
I could easily accept this on a ‘cheap’ antenna with no instruction, but of an antenna, that at the time cost me £500+, I really was perturbed why a decent instructional video or document was available on how to set this antenna up. Furthermore, show how the selectivity worked would of been a benefit to a first time ‘loop’ user. Hindsite is 20/20, but when you pay allot you should really get that level of service included, not as an add-on.
Being an IC705 user, I found the Transceiver bag in the Alexoop Hampack to be oversized, compared to the afore mentioned LC-192, its padding/packaging for carrying a transceiver was really not as good as Icom’s own product. To me, this was scrimping on cost, rather than any other reason (i.e. a transceiver would fit in the bag) – and at the price-tag, was a little disappointing.
Summary / Recommendations
So its been nearly 2 years since I’ve had this antenna, I have at least 2 other antennas I can use with the IC-705 when working portable or mobile, and have the actual ICOM bag for the IC705, so what are my personal oonionsf the Alex Loop Ham Pack.
I am person that is time-poor, that is for me to go /P or /M requires planning and organisation, its not like I can just grab my radio and go out when I like, I’m busy. With that the Alex Loop Ham Pack always ensures that when I go out, I will get on the air – its easy to setup and I can make contacts as soon as the antenna and transceiver are matched. I don’t need to setup a mast, wire and ATU for an antenna, the Alex Loop Ham Pack does that for me with its simple and effective compact solution.
The biggest issue to me is the price, today (Jan 2023) it would cost me £600+ to get this antenna. That is a serious amount of money and given it is only capable of 20W maximum, is it the best antenna for the price ? I would say not, that a good dipole, end fed or vertical will outperform this antenna, but would it be as compact, easy and portable ? Probably not.
If you today you don’t have a QRP solution, you really cant go wrong with an IC705 and the Alexloop Hampack antenna, but then you are looking at a solution that is going to cost upward of £2000, to which you can get on the air with a QRP rig and antenna for £100-150 using a ubitx and simple dipole/end fed solution.
There is going to be a big difference in performance of the radios and antennas, and cost might be your personal motivation, where as quality/time maybe the secondary consideration.
Eitherway, the most important thing is to find the best solution you can afford, starting with the antennas as part of the solution, not the secondary, and getting outdoors and on the air.
Happy New year to you all who follow the blog ! Apologies for the absence of postings, hopefully I’ll keep them a little more regular, at least with doing a PoTA once a month.
Having watched several of my youtube hamradio favourites I was really inspired to get out with my radio and enjoy it. With amazingly good weather, I headed out to the New Forest, specifically to Bratley View.
Bongo at Bratley View, New Forest
I was quick to get the Alexloop Hampack antenna setup quickly and the IC705 tuned into 17m quickly. Using the excellent SDR Control on the IPad it wasn’t long before the contacts on FT8 started coming in.
POTA 17M from Bradley Park
In under 30 minutes I had made 13 FT8 QSO’s on 17M. I then tried FT4 on 20M, I could pick up the signals ok, but wasn’t haven’t much luck in making contacts.
20M FT4
I headed down the band to FT8 which was busy as ever ! I had no problem getting out and making contacts there.
20M FT8
With well in excess of my required 10 contacts for me to activate the park and with my lunch finished, I headed back to home to enjoy the rest of the day with XYL.
Lunch was boiled egg and sausages – but I had forgotten my pen !
I wasn’t able to locate my pen, so couldn’t log manually, which I usually do just incase something happens to the IPad.
As I was totally dependent on the IPad for logging, I exported and ADIF file. Since I last done POTA there is now an option to upload your own log files, so I set about checking out how to do that. A great video really helped me along.
Tutorial on how to use the POTA upload
The log export from SDR Control is great, but requires a bit of ‘munging’ to get into PoTA format. I found a script ruby-pota-csv-to-adif available here which made getting the file uploaded right first time.
With the upload complete, the following morning most of the processing was complete, I was pleased to see other PoTA Hunters in the log.
EC7AKV & SP8QC contacts amongst many others!
It was great to get back out on the radio and enjoy the simplicity of FT8 – I’m hoping to get some practice and try out using Telephony QSO’s via SDR Control, or just using the microphone, it felt great to be back out with the radio and enjoying it again!
Hopefully I’l have more progress on other radio fronts as well, but until next time, 73!
With the upcoming Hamworthy Park Festival I wanted to see if there was any chance I could reach the QTH. Previous attempts from Poole Harbour were unsuccessful with FM and the Bongos whip antenna, but having a new antenna in the armoury thought I’d give it a try.
I had already tested from the drive way of my QTH, then headed out to what is the nearest high point to my QTH in IO90BS, that of Ringwood Road near to the Matalan – IO90AS. A test of the SSTV repeater there worked well.
Received picture at QTHreplayed picture receivedSSTV Testing from IO90AS
I then headed down to Hamworthy park, as I drove through Bournemouth and Poole the hills behind me which I knew would absorb my weak signal, but I’d thought I’ve got to give it a try.
hand held YagiRX at QTHHamworthy SSTV Test from IO80XR
I had the hand-held antenna quickly setup, it was fun to do it out in the field. I attached it to the THD7 and tried to reach the QTH station.
I was not surprised to not hear the pips back to transmit, but as I had driven there, transmitted anyway to see if anything would be received. I wasn’t expecting anything back as the replay mode hadn’t kicked in, so I would have to wait until I got home to see. Sure enough I had received something, albeit mostly static, but at least the application and radio could pull the signal out.
APRS Provided some interesting information. My route was entirely captured, this is due to the geography of where the APRS stations are located.
Route captured via APRS
If I compare my APRS packet reception to my location of the transmission from IO90AS, the APRS station is just down the road near to Bournemouth University.
APRS received via 2E0UXV
As soon as I go over the hill, all my packets are received from stations to the east.
G8TNU Digipeater
The hills between each location are clearly visible using the useful line-of-sight tool.
Hamworthy Park – QTH
Between Hamworthy Park and Corfe Mullen
A much better chance of reception
So it was great to go out and test, albeit the transmission back to the QTH from Poole was again not successful I was able to gain valuable experience and APRS packet data. I think I will be able to setup another solution utilising the Bongo’s 2M whip antenna and a small laptop for the actual Hamworthy Park Summer Fete, so will put those pieces together and test those out next !
Today (19/6/22) was my first attempt of using satellites put in place for amateur radio. Having read up and joined Amsat (a very modest fee for quality content!) I targeted AO-91 as my first satellite.
AO-91 – GoSatWatch
I could see there was at least a possible chance of making a contact at 09:14 BST, so I set out with the Arrow II 146/437-10WBP 2m/70cm antenna and my TH-D7 hand-held.
antenna packingin partsconstructed
Having got the antenna built and radio ready (I pre-programmed the optimal tuning in the shack) I setup a comfortable postion to operate from.
I made sure i was ‘aligned’ to the sky with a real magnetic north compass to ensure that I would stand the best chance of being able to hear the satellite as it came over on its relatively low and short pass.
I was astounded that with pointing the antenna on frequency I was soon hearing QSOs from Italy and the Netherlands via the satellitle on 2m and 70cms. As I was about to try calling my THD7 stopped working ! In a rush I got the THD7 plugged into the Bongo power and could continue to receive, but was unable to complete a QSO this time.
Whilst the battery had got the better of me making a QSO, I was really happy that the antenna and receiver worked and even on a ‘low’ short pass I was able to hear QSO’s. I was amazed at how quickly people gave callsigns and grid locations – there was little time more for anything more – I can see why people recommend recording contacts on satellitle and make the log book after.
I headed back to the shack and tried the AA battery pack that came with the THD7, this also failed to power the radio, so I had to engineer a solution ! I found a ‘spare’ connector from an adaptor set and ‘butchered’ that to make a DC power supply from the batteries I usually use on the IC705, these would be more than enough power for the THD7, even with the squelch fully open, to operate receive and transmit for the times the satellites came over.
Conclusion
Whilst my first attempt at satellites didnt result in a QSO I gained valuable experience and could confirm my antenna and transceiver worked correctly. Whilst the in-built battery was bad, and replacements unreliable/dangerous, I was able to manufacture a replacement. I’ve since ordered a ‘cheap’ Digital voice recorder and headset for QSO’s – I think I have a splittler cable, but will find out when the digital recorder arrives how to drive both headphones and recorder.
In all I was very happy to go from 0 experience, to at least listening, which is pretty much what I done on all the bands in the past anyway, so was very happy to make my first steps in amateur radio satellite communication.
Following last weeks attempt, I headed back to Garston Park to attempt activating the park again. Armed with two lots of battery packs, mains charger and the iPad with SDR-Control loaded onto it I was determined to activate the park.
Bike-Stand mag-loopThe entry to the park..Setup time
Having quickly setup, I was approached by two friendly chaps asking what I was doing with the equipment I had setup. Their initial assumption was bat watching ! (Makes senses with an antenna I guess !) We had a great conversation about parks on the air and also bat watching. Its something I’ve never heard of and with this park being quite near without a lock on it, something I wouldn’t mind trying – an overnight PoTA and bat watching. I’ve looked up some equipment and the bat watching website, so I’ll be looking into that later on in the year, probably when dusk/evening comes in a bit sooner.
Bat detectors – yes they exist !
With that I setup the IC705 to the IPad and SDR-Control – have to say that this application is fantastic – other than having to adjust the connectors in the IC-705 if I want to use the radio independent of the app, its as close to getting to 0 touch to getting on the air in FT4/FT8 modes.
Having experimented with FT4 at home and also updated my version of WSJT-X on the QTH windows machine, I was amazed at the rate QSO’s are completed. For me with a QRP radio and wanting to try battery usage where possible (I don’t always operate from the Bongo) this was great. At the QTH FT4 contacts where made in rapid succession, likewise in the field, when an opening came, the FT4 contacts came flying in ! within several minutes had equalled my previous weeks telephony contact ! I then went over to FT8 to try my luck there, sure enough, the QSO started to come in. The one problem with Garston Wood is the really weak mobile phone signal – for PoTA you really want to self-spot to get that first log on the page, then more will follow, sure enough I was determined to ‘self-spot’ and was rewarded with more FT8 QSO’s.
Digital modes via SDR ControlRapid logging
The SDR Control app made logging and contacting as easy as it could be, I was amazed at how well thought out this application is. It can be configured to automatically log, which I tested for the first time today and confirm works wonderfully. Essentially this means you could run FT8 & FT4 completely hands free.
I exported the log from my ipad to my icloud storage, with a bit of simple ‘grep’ and redirection I had the file in the format ready to submission to the POTA Administrator.
I tried SSTV with the black cat app, but it wouldn’t integrate with SDR Control, so I tried the old fashioned method of picking up a microphone, but whilst I could pick up SSTV from the IC705 with my own ears, the ipad app was pretty much deaf out in the field. As I am great fan of SSTV this is the one thing the SDR Control App is missing – if a way could be found to integrate either the black-cat app into SDR Control so they can run both the same time, or SDR Control had its own native SSTV app, that would be amazing !
I tried a few more SSB contacts on 20m, but to no avail. With the weak phone coverage self-spotting was tricky and when I could self-spot it would take another ‘strong’ station to come in over the the top of me to make that frequency out of use to me. I tried 2M and although hearing some activity (always glad just to hear something!) couldn’t complete a QSO.
So today turned into all about Data, and how important to activate a park SDR Control is, being my 2nd visit, I was determined to get the 10 contacts to activate, and I wasn’t let down by the application. Being restricted in self-spotting also meant that when I could get onto the POTA website, I was consistent, and I was rewarded with a FT8 contact from K3VAT in the US.
excellent world mapFulll QRZ logSDR Control LogFT4 and FT8 saved the day – and the SDR Control App
I’ve had a fantastic time of late travelling around to various PoTA locations and this was by far the most challenging one so far, with limited mobile coverage, varying conditions and generally being a bit busy, it was great to get the 10 QSO’s needed to activate the park.
My next ‘planned’ PoTA is quite a few weeks off, and its getting further afield to find ‘unactivaetd’ parks, but I’m really excited about it, until then I’m going to be utilizing my season ticket for Upton Country Park, with lovely weather and long evenings, I can head over after work and set up for a fun evening of ‘parks on the air’ close to home.
Until then 73 and hope to catch you in the log book !
