QRZ.COM
Please login help/register callsign: password: secure login
Database News Forums Swapmeet Resources Contact
 13:31:09 UTC 18 Dec 2014 
Advanced Search Current Hot Callsigns XML Logbook Data QSL ListMaker Database Downloads DX Spotting Network Ham Club Database QSL Corner Top Web Contacts Expired Callsigns QRZ's 1993 FCC Database Daily Update Reports Just Added Callsigns Database Help Forum
Amateur Radio News General Announcements Special Events, Contests, etc. Hamfests and Conventions Silent Keys Headlines
Forums Home Discussions, Editorials, Talk Technical Forums Logging and Contesting RV and Mobile Help Forums
Ham Radio Gear for Sale Ham Made Gear General Merchandise Swapmeet Hot List Ham to Ham References Stolen Radios, Scams and Rip-offs
Site Menu... Practice Amateur Radio Exams Amateur Radio Study Guides Online License Renewals License Wall Certificates Commercial Ham Radio Links DX Country Atlas Grid Mapper Ham Radio Trivia Quiz Life Member Honor Roll
Help Desk, for accounts, lost passwords, etc. Add your callsign to QRZ Subscription Services Users Help Forum Frequently Asked Questions - FAQ QRZ en Espanol Privacy Statement Advertise with QRZ List of Current Advertisers About QRZ Donate to QRZ Contact us
ad: L-HROutlet
ad: l-assoc
ad: l-gcopper
ad: l-tentec
ad: l-rl
ad: l-Heil
ad: l-innov
ad: l-Waters
ad: l-WarrenG
EA5IGC Spain flag Spain

Login is required for additional detail.

QSL: DIRECT OR LOTW ONLY

Email: Login required to view

XML Subscriber Lookups: 6106

 

I started in amateur radio with Baofeng UV-5R for listening in February 2013, took the exam in March and then got licensed April of the same year. I enjoy using a mix of commercial 'big-brand' equipment, novelties from China and a certain amount of homebrew.

I'm currently operating a Yaesu FT-450D through an MFJ-949E to hexbeam / G5RV mini antennas. The hexbeam antenna currently 'down for maintenance' (until I get a much more sturdy mast arrangement - I broke one of the spreaders last time I lashed it up at just 2.5m).

I'm mostly on SSB phone & sometimes PSK31.

I made and fitted a DH8BQA BX-814 'Voice Keyer' kit to save my voice when calling CQ - I'm delighted with it.

QSO's as of 26 April 2014 - mapped on my own Online QSO Mapping Tool. It's free - if you'd like a similar map of your QSO's please have a look.

If you're looking for my notes on using an RM Italy KL-400 on HF, I've moved that stuff to my website.

I use a homebrew, fully-isolated digital modes interface with its own USB interface. It's based on KK7UQ's design, but I use the 1kHz right channel PTT tone detected with my own circuit. Therefore only a USB sound card is needed (no serial interface). Below I've added a picture of the innards of the finished interface. You can see the 'sound card' on the right - about the size of a postage stamp after throwing away the plastics and desoldering the USB connector. The sound interface was about $1.50 direct from China including postage, not really worth making your own! The most 'expensive' parts were the isolation transformers which were about $5 each. The whole thing cost about $30 including cable, case, etc. - and I have a load of extra parts for other projects.

Here's the PTT circuit made with cheap discrete components - I was thinking about using LM567 tone detector chip but it was overkill and I didn't have any in stock:

Antennas: I'm not wildly enthusiastic about the G5RV mini; I don't know whether it's because I have it in inverted 'V', but performance on anything other than 20m is not good - high SWR that in some bands I can't tune out with my manual MFJ tuner and weak signals in general. On 20m it performs just about the same as a simple wire 20m inverted 'V' dipole - which isn't surprising. Although at the 20m PSK31 frequency, 14.070MHz, I can't tune to much better than 2.0:1 when on the KL-400 (wound down to below 30W). All in all, not that great. I bought a second hand he beam that needed a bit of repair and now have that on a provisional 2.5m high support - I will be putting it on a 6m pole with a rotator. However, even at 2.5m, it's already pulling in more DX than the G5RV mini at 6m.

I tried a VK3YE/Par End Fedz 10/20/40 antenna for portable but I can't get SWR better than 2.5:1 on 20m so I need to rebuild using the toroid that VK3YE specified and also pay attention to phase of input and output coils - it may not be a scapper yet.

Homebrew projects underway: a VK3YE-style magnetic loop and the mounting the hexbeam higher and rotatable and a tapped-coil loaded multiband vertical for portable use with a fishing rod.

My lab is equipped with a linear 0-30V, 2A linear supply, a 45A 13.8V switchmode supply, an Owon DS7102V scope (much maligned, about a million times better than no scope at all), a Siglent SG1025 signal generator (excellent although higher frequency range would be nice), some cheapo multimeters, a SARK-100 antenna analyser clone ('Mini-60') which works very well, usual handtools, breadboards, etc. and benchtop bandsaw, lathe + mill.

I received my first ever QSL cards printed by LZ3HI on 3 Sep 2013. Currently I have no bureau - I prefer LoTW but will also QSL direct. Here's the artwork for the QSL cards.

EA5IGC QSL Card

Finally, if you speak Spanish, please have a look on my pages at RadioClub San Javier.

1397217 Last modified: 2014-11-01 15:12:20, 4792 bytes

Login Required

Login is required for additional detail.

You must be logged in to file a report on this page

Please login now...

Currently updating logbook display.
ad: giga-db
Copyright © 2014 by QRZ.COM
Thu Dec 18 13:31:09 2014 UTC
CPU: 0.043 sec 40895 bytes mp