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GM0GTU Scotland flag Scotland

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Locator IO87BN

Hello, and thanks for looking me up on qrz.com

My name is Stewart and I live in Nairn in the Highlands of Scotland, approx. 13 miles East of Inverness.

Please note, my postal address is not complete for security reasons. Please do not try to QSL direct. eQSL only

My radio equipment consists of the following:-

Tranceivers Base:- Kenwood TS-870 (sold pending payment)

Kenwood TS-B2000

KenwoodTS-830. Sold. I know I'm going to regret this!

Yaesu FT-736R 2M, 70cm, & 6M modules installed. Mutec front-ends.

Flexradio Flex- 5000. I owned a Flex-1500 for a while to get my feet wet with SDR and was well impressed, so once I became familiar with operating it with PSDR I decided to bite the bullet and buy a Flex-5000 (used, at a very good price)

Icom IC-E90, IC-W21E, Baofeng UV-5R HTs.

Icom IC-R5 & PCR-1000 scanners.

Ascom SE550 (4M FM)

HA1YA transverter for 4M, Microwave Modules transverters for 4M & 23cm bands

Amps:- Ameritron AL-811 for HF; Acom 1000 for HF & 6 Metres; W1SL & ME-1500V for 2 Metres; Microwave Modules 100W, and HA1YA ME300 4M amps.

Antennas:- 2X 9 ELE Vaargada at 65 ft for 2 Metres; Cobwebb at 35ft for 20M to 10M; Carolina Windom 80, shallow vee, 55ft apex, Double-Bazooka at 15ft for 60M NVIS; Dual band 4 ELE Cubex Quad for 4m & 6M; various verticals for FM on 6M, 4M, 2M, & 70cm.


My primary vehicle is a Landrover Discovery. I also have a Motor home/mobile shack

Tranceivers Mobile:- 2X Yaesu FT-8800; Kenwoods TS-480SAT; TR-751E (2M Multimode); 2X Ascom SE550 & Tait 2000 (4M FM).



Icom 7100

I bought an Icom IC-7100 some time ago, mostly for the 4 Metre multi-mode capability, but then thought as It's also a DSTAR radio I'll see what that's all about. Unfortunately at the time there were no DSTAR repeaters, nodes, or hotspots in the area, so after trying a few DV simplex contacts, and discovering that it beat FM (even FMN) simplex for sensitivity, I decided to apply for an NOV to operate a DSTAR hotspot. In less than 48 Hrs I had the NOV, and a GMSK modem board. With the modem linked to a Raspberry Pi running the G4KLX software MB6TU came on-air. MB6TU mobile coverage includes the A96 to Inverness, parts of Inverness, a chunk of the Black Isle, the A96 East to Elgin (with a few black spots), and the A9 South almost to Aveimore (with several black spots). Not bad for 2 Watts ERP. MB6TU is usually linked to XRF133A in the morning, and DCS005B the rest of the day.
MB6TU is on 144.8125 MHz

I wasn't happy with the two SO239 connectors on the rear of the 7100, so I changed them to N-types. This was very easy, and didn't involve any soldering. After removing the screws holding the sockets in-place, just pull them off. The centre pins locate in to spring-loaded clips on the main PCB. Make sure the N-types have long enough pins to reach the clips. If you remove the top cover of the rig you can check that they have located correctly.


     I also recently bought an Icom IC-92D HT so that I can use DSTAR from anywhere in the house and also when I'm out for a walk with the Dog, or bicycle mobile. It came with the GPS mic.











Some time ago I aquired 2X 12 ELE 144 MHz LFAs to replace the Vargadas, and also 4X 16 ELE 70cm LFAs, from Justin G0KSC. I drove down to Canvey Island to collect the antennas so that he wouldn't have to cut the booms in to short lengths for posting. I was able to see Justin and his Dad making and mounting the last four elements for each 70cm LFA. I was astounded at the attention to detail employed in the construction. No cheap & nasty mounting hardware anywhere; only the best marine grade stainless steel fittings, right down to the locking washers. Justin uses a digital caliper to get the element lengths spot-on, and I mean spot-on. Is this man a perfectionist? You bet he is.

I was even taken out for dinner with Justin, his lovely wife, and youngest son. Justin and I finished-off the evening drinking fine wine and discussing antennas. Customer service? I have never experienced anything like it.

If you are thinking about buying any new antennas do yourself a favour & contact Justin http://www.innovantennas.com/ to discuss your requirements. He has another web site with details of his antenna designs and construction details for DIY at http://www.g0ksc.co.uk/


I've also started constructing an OZ2M 4 metre transverter & PA to replace my ageing Microwave Modules unit for base use. The MM transverter and matching 100W linear will probably be used in the motorhome.


In 2013 I bought a holiday home in Golf del Sur on the South coast of Tenerife, where my YL and I plan to spend the Winter months. I took my FT-857D with me last Winter along with an SGC-230 autocoupler, and a Sidekick screwdriver antenna. Unfortunately I wasn't able to rig any antennas at the time, so only operated with an HT. This Winter I'll definitely have antennas up, i.e. a 10 Metre long roachpole vertical with 2 radials fed by the autocoupler or the Sidekick, and a dual-band whitestick for 2 Metres and 70cm. I'll probably take the IC-7100 with me as well.




I'm no longer working on board the Helene, so the equipment has been removed.

I work for Oceaneering International Inc. as an ROV Superintendent on the vessel Bourbon Helene. We are engaged in sub sea construction and inspection work at 1700 Metres water depth off the coast of Angola, loc JI52.


While on board I operate as F/GM0GTU/MM, mainly PSK and more recently Olivia also. My equipment is set- up in my cabin and is as follows:-

Transceiver- FT-857D; PC- Dell Inspiron 6400; CW key- Palm Paddle Mini; SignaLink USB digital interface; the antenna is a 8 Metre long marine whip with SG-230 autotuner on the roof of the Bridge.

1735955 Last modified: 2015-02-27 05:58:42, 8805 bytes

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