Category Archives: 2m

ISS SSTV + SONATE SSTV + PACKET

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I am big fan of the youtube channel ‘save it for parts’ – Gabe is a really interesting person who is honest and clear in his approach to what ever comes into his hands – I mention his channel as it was a single comment on on one of his videos that made me aware that the ISS was doing SSTV ! Something I had always wanted to do but never had the chance / setup to make it happen.

Withat that I setup MMSSTV to use the IC9700 audio source and tuned HRD to the ISS SSTV radio frequency.

It was really exciting to wait for the ISS to come over and hear SSTV coming down, the quality of my images varied greatly, but I was nethertheless happy to receive pictures direct as the ISS flew over the QTH in IO90BS. On a good run I could get one good picture and then one not so good picture, but the main thing was to take part.

a not so good picture
a better picture

The ARISS organisation had setup an excellent page where images could be submitted and a reward received. The main page here showed the excellent pictures received around the world, the quality is quite amazing – whilst mine didnt make the main page, I was happy that it was possible to see my submissions searching on the call sign.

And sure enough I was soon awarded the ISS SSTV which I’ve already put on my QRZ page.

At the same time I noticed on the AMSAT Oscar Sat status page another SSTV satellite (and packet) – SONATE-2. I setup HRD for the satellite and amazingly i was able to get an image as it flew over !

I was really pleased that my ‘generic’ egg-beater setup was able to pull in such weak signals and for them to be decoded. SONATE-2 also does APRS – its not far off the frequency for the ISS, so with checking hte fly-by schedules, I setup my packet radio application to receive, sure enough I received a packet from SONATE-2 !

I had a fantastic time, thanks to the save it for parts channel mentioning the ISS was doing SSTV and getting so many great images. This is my favourite !

I hope I can get more SSTV from both the ISS and SONATE-2 – its really inspired me to do something with SSTV myself, given now that intermediate license holders can setup a low-power SSTV repeater, it just might be something I do ! 🙂

Until the next blog posting – lets hope the weather gets better – and more amateur radio shenanigans ! 🙂

Storm damage at the QTH

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Wow, what WX (weather) we have been having lately – thankfully thunderstorms/lightining have missed me, but the wind and rain had a rather adverse effect on EFHW setup.

*crack*
thats a biggie
about 1mm gap when held close

The mighty DX Commander classic mast that I used as far end of my 80m UK Antenna EFHW took the full brunt of the winds over the weekend, my weather recorder stating upto 16 knots – and that is at ground level surrounded by bushes/trees!

Ground level wind speeds

I looked around for spares and was glad to see I had a spare base-pipe for the mast, but that would mean stripping it down and then feeding the pipe through, so I’d though id see if I can just move the mast a little bit, lose a little height but still clear the bungalows roof.

just above the roof
going strong
well rigged

I was really happy that the mast would continue to function, i rigged it back up with 4 ropes to ensure it should stay up right, no further storms are forecast currently!

I went back to the shack and tested out SSTV on 20M – 1:1 SWR with 100W and my pic using Robot 72 was well received across Europe !

My other antennas and the bullet proof 6BTV was totally uneffected by the weather, but the 2m/70cm mast needs a bit of a push up, but I’m getting older and that antenna is getting heavier… 😉

I was very happy to have a QSO via the ISS Digipeater and received an excellent QSO card from EA2BW.

Packet QSO via ISS DIgipeater on 2M

Until the next post, take care, stay safe & 73’s

2E0FWE

POTA in the Sun

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With another gorgeous sunny day it was an opportunity to get out the shack and on the air, but before heading out, I had a nice walk/exercise to Hengistbury Head, whilst I had no radio with me today, I did notice these small microwave dishes at the end of my walk on the cafe. I wonder what they are ?

small dish side of cafe
larger dish on top
front side

Maybe they are some kind of digital voice repeater, they look very ‘directed’ so not the kind of antenna I’d expect something like the ‘land train’ to use, maybe its to the other cafe near mudeford sandback ? Still Sweety and I had a great walk !

cheap little sheds
Sweety enjoying the beach

Once back home I quickly assembled my radio and headed off to the New Forest, I did a quick check of the 17m band before heading out and everything look good on the bands, despite the reports of poor conditions.

Once setup, I was able to get onto FT8 on 17m in the park and my reports on PSK Reporter was really good ! I’m quite amazed how well this little whip and radials works.

17m FT8 & 10W of power

I had to do some band and mode changing to get the 10 contacts to activate the park, but sure enough today it was in less than an hour, which was great, maybe coming in the afternoon when more Europeans are awake/about for radio helped as well.

After about 90 minutes on digital modes I noticed my IC-705 has got really hot, as in hot to touch and the temp meter on the front was getting high as well ! I gave the radio about 15 minutes of break and the temp got back down to below the red zone. I think the combination of hot weather (was about 28c air temp at this point, the breeze kept me somewhat cool) and the radio being in the bag restricted its ventilation.

It got hot in the afternoon !

I found that taking the radio out the bag and letting the breeze pass over it considerabley reduced the temperature. As I already had enough contacts I’d though I give 2M FM a try on the RH770 Whip antenna.

To my amazement, i was able to make a contact with 2E1KJB on the Isle of White in Cowes ! Given I was in the New Forest so this was well over the horizion on a whip antenna, i was really pleased to make the QSO and add a FM contact to my list – I notice the temperature of the radio had once again increased, so I thought it was a good way to finish off and pack up.

IC 705 back home and cooled down, working great

I felt it prudent to check the IC-705 once back home as it had time to cool down on the short journey back and borrowing the 6btv antenna from the WSPR station was able to confirm that all was good with the transmit, so no damage done to the finals due to the hot weather.

new forest traffic
not a full log, but enough

I was really happy to get out with the radio 2 days in a row and make enough contacts to add to my new forest activations – having now reached 10 activations in the New Forest, i’m half way there on completing the award, and with still plenty of time for radio between now and getting back into alot more studying, I’m confident I will get the 20 activations in no time at all !

Bongo and magloop

With the issue of heat and the radio being in the Icom back-pack I may revert to the magloop again and try to work out a way I can use it portable, as I tend to either bungee it to a table or use my ‘bike stand’ mast which under the rear wheel of the bongo as shown above.

Still I’m sure I’ll find a way, i do enjoy getting out of the house and out of the Bongo when the weather is this nice ! Until the next time and thanks for all those who responded to my CQ’s ! 2E0FWE 🙂

POTA QRP in poor radio conditions

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HF Band conditions have not been at their greatest this week (10/8/24) with intemittent SSTV pics on 20m and visibly varying conditions on other bands, courtesy of the WSPR transmitter I run here. Not to be defeated, I still headed out to The New Forest see if any contacts could be made…

Band conditions are not good on the HF bandscurrently

I setup in the same place as last week, with the same antenna. I did unfurl the counterpoises 2 times just to get a better placement and spread and even without the tuner, was getting good SWR of 1.5:1 on the Toybox antenna on 17m. Setup was really easy and no tangled radials.

I started with FT8 on 17M, it was taking some time to get out, but PSK Reporter and self-spotting on the POTA app meant I could see myself via the reverse beacon network as well, so it was just a question of being patient to make a contact.

17M FT8 – despite the poor conditions, my signal was getting out nicely on 10W

Sure enough with 10 minutes, I had my first contacts and QSO’s into Europe. It was certianly taking longer than last week, but nethertheless the QSO’s where coming in. I continued on 17M and it was really evident of just how fluctuating the band conditions where, one minute I was hearing/getting into Australia and New Zeeland, the next the whole band seemingly ‘collapsed’ with only the very strongest of signals getting thru. I had made 6 contacts and I wasnt in a big rush, so peristed with FT8 on 17m. I was pleased to be getting into Denmark and a good report back from OZ9FF was good to get in the logs. Having got my 10 QSO’s in the log after about 90 minutes, I tried different modes and bands.On FT4 on 17m I was pleased to get another POTA user, IK2QEB, who had hunted me from the POTA app.

I bounced to 20m – this was really easy with the Toybox antenna, just changing the ground-wire onto the coil and re-tune the antenna with the ATU, and I was on a 1.3:1 SWR. I managed one contact and with a total of 14 contacts, started to play around the bands and see what else the toybox antenna could do.

I adjusted the ground wire to 10M, no adjustment in the antenna itself was required, and was pleased to see so many signals getting in. Looking at PSK report my signals where getting out albeit with a predominate ‘skip’ to the East, but it was cool to try out a different band in poor conditions, despite not managing a QSO today.

10m FT8 provided signal reports getting into Easten Europe and very far into Russia !

At this point I thought why not give the 2m/70cm whip antenna a try before packing up, just for the fun of it. Whilst I didnt make any QSO’s, it was great that my signal was at least getting out on this little whip antenna !

All in all, despite the bad conditions, i had fun experimenting with the different configurations of the toybox antenna and even tryign out the 2m/70cm whip antenna. I had a nice relaxing time and felt great for getting out with my radio and enjoying the lovely new forest.

I’ve still got a 11 more activations to complete before my repeat award, but am confident with my current setup that figure will steadily decline and hopefully I’ll make more POTA contacts along the way, no matter what the conditions !

POTA – A digital mode bonaza at the New Forest (GB-0112)

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Having had some recent setbacks with not making any (i.e. ZERO) contacts and then NINE and not activating the park (I had a double, so counted 10 contacts, but it was only 9…), I was determined to get out and actually add to my activations of the New Forest. Prior today I’m two away from the award for visiting the park and activating it multiple times (20 needed).

APRS Spotting via 2M (144.800)

Having tested at the QTH with a quick test then a QRT I could see that I could use APSPOT to self-spot to POTA. Some areas of the new forest have limited phone signal, where as today I could reach the internet on my phone, it was great to see RF->Web via APRS DigiPeaters – Many thanks to the people still keeping APRS alive ! I am truly thankful for the digipeaters !

APRS Beacon received en-route and back from POTA activation – thanks to the many APRS Digipeaters!

Beaconing and sending a message for POTA is different, on my Kenwood it is very similar to how shown in the excellent video from Ben Soper, obviously the Frequency changes to the UK APRS of 144.800, i also kept all the text in the message *lower case*

excellent demo of how to self-spot POTA via APRS fom Ben Soper

Ironically, whilst I could spot, I wasn’t able to make any telephony contacts on 17m. Maybe I was asking too much of my QRP setup and compromise antenna. I have made phone contacts on it before, but HF conditions vary and maybe that was the reason why. Propergation on 17M was very come-and-go today, but ranging all over Europe on 10W, I wasnt complaining

17M – FT8

I spent the first set of data communictions on FT8, and there was very much a steady stream of contacts coming in. The whip antenna, tuner and radials where doing a great job, as least as good as my mag loop, but I’d say it was far more portable and easier to setup.

17M – FT4

Looking at the waterfall on the IC705 I could see some activity on the FT4 section of the band, switching to FT4 SDR-Mobile is very easy, just a quick click, the tuner put the SWR down to <1.5:1 and I was off. It was a very steady flow of QSO’s !

Wild horses
Enjoying the grass
and not the radials

It was lovely to meet people out walking their dogs, with a great conversation with a TV Repairman about the old days of broadcast transmission and interference from France. Its great to show people where I have reached with my radio, they are amazed with how far it has gone, also I really liked their little badger-dog who was playing fetch with a ball 🙂 The amount of horses in the new forest is lovely, there is a real mix of animals, this time of the year we see horses and cows roaming around the roads – much care is needed as the youngsters are just starting to get used to the roads, but its amazing to see the parents have such protective instincts for their young. In the Autumn I look forward to seeing the little red pigs which are usually seen around Burley 🙂

Setup today
comfortable and easy
The lovely bongo

It was one of those days that I really appreciated living near this beautiful location and also having my Mazda Bongo, it has more lives than a cat, but I seem to keep it on the road each year, days like today it makes it all worth it being able to drive out with my equipment, set it. up easily then get back home without issue. Having the 2M/70cm Kenwood transceiver with APRS in the Bongo is great for tracking and now with the ability to self-spot, its really useful!

Kenwood with APRS+GPS
so many views like this in the New Forest

Having made a personal best of 32 Data mode contacts, I tried telephony on 17 and 20 meters, but to no avail, but I was far from disappointed, I really felt like I had an excellent time out today doing PoTA, and I cant thank the people that pull out my signal from the noise to make and complete a QSO! See if you spot your call sign in the credits 🙂

POTA GB-0112 New Forest

Really looking forward to the next time I can get out and get on the air 🙂

73, 2E0FWE

July Update

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Its been a while since I’ve posted, so thought I’d better put something up ! I’m glad to say that at home my shack has undergone a re-jig and tidy up, things are alot easier to operate.

I’ve been making more contacts with telephony and had a great QSO on 80m with F5VHZ, who is setting up in north France. Its great to have these longer QSO’s and esp on HF.

Meanwhile on VHF/UHF I’ve been monitoring the local gateway and repeaters with my Kenwood 2m/70cm transceiver, its been nice to hear the chat and the repeaters still have some life. There are some interesting conversations, esp to the ones linked to Echolink – which I am very much a fan of – in getting a local service able to speak to people in far distant locations than otherwise would be capable.

I’ve also got the Bongo fixed and re-equipped, mostly I’m driving around sending out APRS packets. I’m trying to work out a way to get a Wifi enabled hotspot in the bongo so i can use the 70cms side for QSO’s whilst 2m is on APRS.

I also had my first ever ‘boot fair’ and sold some of the things from the shack that weren’t getting used, whilst I had a whole load of other gubbings, I had a great time and even made a few quid.

Whilst work and academia are no less busy, i’m hoping with the shack tidy I will get back to going out and doing more POTA.

In the mean time, 73’s and look forward to catching you on the airwaves.

2E0FWE

Icom 9700 – Leo Bodnar Stability kit

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Having being able to do more work on the 9700 and its antennas recently, the ‘drift’ on frequency was getting more apparent, especially so with digital modes with the classic WSPR drift. As I want to do digital modes on the ‘birds’ having a stable frequency would seem like a good prerequisits to fix the drift issue.

WSPR Drift in WSJT-X from the IC9700

I’ve had the injection board for some time, but just never had the desire to open the 9700 until it was really necessary. I have to say that the idea of opening a radio with the price tag the 9700 has to fix an issue does seem somewhat bizzare, but equally I’m glad that leo bodnar solution requires no soldering but stil requires a good amount of care and attention.

I ordered the mini GPS clock and was pleased to see that it included a GPS Antenna and USB cable, its worth noting that you will need a SMA Cable for going between the GPS clock and the radio itself, thankfully I had several good length ones here in the shack thanks to my work on the chipwhispherer capture board.

My reference video, which is also linked from the Leo Bodnar site, is the ‘gps lock you icom ic-9700’, I watched this several times before even opening the radio.

The most excellent how-to video on fitting and tuning the GPS lock on the ic-9700

Having watched the video one last time, I set about opening the 9700.

use a towel to protect radio
screws removed and ready for fitting

I waited an extra day before opening the radio as I dont have any JIS screwdrivers and didnt want to wreck the screws on the 9700. I found a nice set for £12 on Amazon that done the job nicely, tho some screws may of been ‘locked’ in, a good strong ‘tap’ of the screwdriver ensured the screws came out easily.

JIS2 screwdriver for exterior screws on IC9700 base

Having got the case open, i then set about removing the thermal protector and existing wire. I was trepidatious about removing the connector, its very small with alot of components around it, with a little ‘wiggle’ it was removed. I used a bike-kit socket set to remove the connector from the chassis and stored in the board box.

fiddly
light glue held this on

I then went about fitting the board, i first sized up exactly where it would go and what screws to use, there are two pairs in the box, I went with the longers set which done the job well of holding the injection board to existing screw holes. I made a visual inspection with my phone to make sure the board was fitted correctly and should work correctly.

making sure of placement
longer screws used for fitting
visual placement looks good

Once I had fitted the board, I put the power back and turned on just to ensure nothing had shorted/issues, then put the bottom case back on. I found getting the power connector on and off the 9700 really fiddly ! hopefully I wont have to remove it again ! 🙂

I then installed the software on the computer I use for the ic9700 that has PCSAT32 and HRD installed on it. I didnt see any Linux software for doing this, so was at advantage running Windows in this instance. I liked the GPS Clock had a blinking LED on it as well. I hooked up the external antenna and was soon picking up the GPS signal without issue.

GPS reception is great !
LED is a good feature

For signal generation I setup my IC-705 with a 2m/70cm whip antenna, and set the power output to 0, i was able to use the morse mode to generate a repeated CQ TEST 2E0FWE as my frequency marker, I could then use this to ensure the injection board was working correctly.

IC-705 sending morse
IC-9700 1hz off
monitoring locking

I was really impressed of how well the frequency locked and the stability of it. It only took me a couple of hours tops to watch the videos and fit everything to have a radio which will work well on digital modes.

Hopefully you will see more videos of me using the digital modes on the ‘birds’ soon, but am glad the radio is up and running !

When I’m working during the day, I’m using WSPR to test the antenna and even tho its an eggbeater its doing great with WSPR.

WSPR on 2M

73 2E0FWE

IC705 USB Cable Choke

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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 wrap
quite a few turns
No 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

WSJTX, WFVIEW + VBAudio

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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

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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,

WSJTX FT8 2M

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.

WSPR on 2M

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