Category Archives: QRP Antenna

QRP Portable + 2M SSTV !

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Its been a busy time with radio activities, so much so I’ve barely had time to write up, so today I’m doing two for one !

QRP Portable

So having been inspired by numerous youtube videos to ‘get out the shack’ and being well equipped, I was determined to go out in my Mazda bongo with my QRP setup. The first thing I wanted to do was see if I could use my under-used Alexloop hampack in the Bongo, eliminating the need for any need to be outside of my Bongo.

I tested at home first in my drive way and getting the bongo roof up, IC705 and Alexloop in the Bongo worked well. Receiving signals was not a problem at all !

QRP Bongo QTH

So I asked my fellow G4PRS members a good high location to also do some UHF/VHF operation. I was not be disappointed when Whiteways Viewpoint was recommend by several members. Not only was it stunningly beautiful, and very windy, there was plenty of space to park and setup. I wasn’t alone in operation !

  • stunning views
  • popular with vams
  • across purbeck ranges
Operating from Whiteways

I setup my Bongo, IC705 and Alexloop. Whilst in the bongo I could get the SWR readings down low, but couldnt get my signal out but when putting the loop in the roof, there was some inductance from the small amount of metal in the roof and the SWR would go high.

QRP Operation Day 2 – Whiteways

I had a great time, and was glad that I had brought along my 2m/70cm Kenwood TH-D7, which I was able to put into the external antenna. I was quickly able to have a QSO via GB3IW repeater on 70cm, an impressive distance of 41 miles (approx)

GB3IW (approx) and Whiteways

I then tried out 2M and calling CQ, I was glad to be received by G3TOI in Christchurch who was monitoring during his HF / 80m activites. We have had QSO’s before, and its always good to catch up, but it was great to be so clear and a good report whilst mobile.

I really added to my portable QRP operation experience by this one trip out, I know now that for my antennas they will have to be outside the Bongo. As such I have got a pop-up tent to sit either myself or the antenna in the tent. I’m hoping to do more /M operation on the 17/18th of January – so keep a look out for me on the airwaves !

SSTV 2M

Whislt I still enjoy SSTV on HF (Mostly 20m and 80m) I really enjoy it on 2M also. Being able to use FM and upto 50W from my QTH with the Diamond x7000 antenna means I have the challenge of the terrain but the hope that I will also make contacts.

The SSTV calling frequency (144.500Mhz) is very quite in IO90BS, but I advertised the times I am almost always on via my QRZ page, i.e. 8-9AM on Sunday mornings. Whilst I didn’t get anyone during this specific period, I did leave my 9700 and MSSTV running, sure enough whilst walking in from the garden I heard a signal !

I sat down and had a fantastic 2M SSTV QSO with M0UVM, whose location is not geographically far, but still the other side of a large hill I have between me and Bournemouth Town Centre. I was really happy that someone had taken the time to setup MMSTV and put really good pictures in. We are planning more transmission on Sunday mornings with different SSTV modes and power. M0UVM is using an IC705 and only 10W, so doing really well !

Here are the excellent pictures we sent each other

Received Pictures (by 2E0FWE)

Received pictures by M0UVM

Here is hoping that there is more SSTV on 2M !

Until next time, 73

2E0FWE / Alan

QRP from the QTH

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So today is memorable for two things, one is my 28th Wedding Anniversary to XYL Monica. We are so blessed to have each other and I’m so thankful to have an amazing missus who I love so dearly.

Also today I made my first ever QRP contact from my QTH with 10W of power. I’ve had the ‘setup’ for a few weeks, and its been sat under my table (sadly) waiting for a time to go out. Today the weather has been fantastic in IO90, so I seized the opputnity to get out with the 705 in my front garden.

For those who are inclined, here is the setup I used today.

  • Transceiver :- Icom IC705
  • Antenna :- HFJ-350M & CGW-560 Counterpoise
  • Antenna Analyzer :- Rig Expert Zoom AA-55
  • Additionally :- M12 Copper Washer & BD7-Maple Antenna Bracket

I made myself comfortable with a long-used and reliable camping table and as being at home, a soft cushioned chair, which was invaluable for the tuning and waits for the QRP sessions.

I started off tuning the HFJ-350M (350M) for 40M. With the Rig Expert and instructions provided, this was suprisngly easy to get the antenna tuned for the SSB Telephony section of 40m. I started with the measurements from the instructions, and then adjusted the antenna until the SWR was at a good reading.

Tuned into 40m

However with the contest on this weekend 40m was simply full of contesters. I don’t mind on my usual home-rig to take part in contesters and give the 001 serial to give a signal report, but being QRP and for 5-10 with an Italian call sign who was very clear to me, I was unable to complete the contact with my QRP setup.

For interest, I then went onto 20m (14mHz) and found tuning the antenna was straight forward. To start with it was quite close to having a SWR reading of 5-to-6, whilst not good enough, it was better than the ‘infinite’ value, so some fettling with the antenna in slowly sliding and taking a measurement soon produced the whole of the 20m band with good SWR reading for transmission

Again, 20M was full of contesters and I was unable to break the pile ups with my 5W of power. At this time I headed into the ‘shack’ and grabbed my LiFO battery, allow the full 10W of power to be used. I also research non-contest bands and QRP frequency. I found that 17M (18Mhz) was a non-contest band. I was able to use the same method to get a good SWR reading across the 17m band – the antenna was at least matching very well and using a repeatable process I could use in the field.

With some time and patient listening, I heard a call on the QRP frequency on 17M of 18.130, and with of effort with both myself and the operator from Finland listening was able to make my first QRP contact. It was incredibly satisfying with such a low power and compromise setup to make a contact on HF – my report was 5/3 with a very weak signal, understably with 10W and in an urban environment – needless today I was ecstatic to make a contact.

QRP contact video

Whilst I was unable to capture the video (the run time would of been over an hour !) I do capture the unbridled joy of a QRP contact on a portable setup. Hopefully I will be able to make more trips to less RF noisy environments as I thoroughly enjoy QRP operation as it gives a fantastic sense of satisfaction in making contacts with such small amounts of power.