Search found 125 matches

by VK4OE
Thu Jun 20, 2019 8:22 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: Winter Vhf/uhf field day 2019
Replies: 7
Views: 353

Re: Winter Vhf/uhf field day 2019

Greetings to all readers! This week-end, weather permitting, I plan to be operating on the Saturday evening from Mt Gravatt in Brisbane (QG62MK) for a couple or three hours starting around 6 p.m., then on the Sunday morning I plan to be at Kamarun Lookout (QG61NU) starting around 6:30 a.m. (brrrr!) ...
by VK4OE
Sun Feb 24, 2019 9:33 am
Forum: 1296, Microwaves and Opto
Topic: MAD - Sunday February 24, 2019
Replies: 27
Views: 1670

Re: MAD - Sunday February 24, 2019

Good morning Quentin.
On this outing - I should be leaving for Mt Gravatt in a half hour or so - 5760 will be well catered for. but 3398 will be a 'minimalist' system. Liaise on 146.5 or 146.55 or 439.0 FM simplex.
--Doug.
by VK4OE
Sun Feb 24, 2019 8:13 am
Forum: 1296, Microwaves and Opto
Topic: MAD - Sunday February 24, 2019
Replies: 27
Views: 1670

Re: MAD - Sunday February 24, 2019

Good on you Kevin!
As already indicated, I'll be happy to assist with an across-town test....please contact me directly to organise!
--Doug, '4OE.
by VK4OE
Sun Feb 24, 2019 7:25 am
Forum: 1296, Microwaves and Opto
Topic: MAD - Sunday February 24, 2019
Replies: 27
Views: 1670

Re: MAD - Sunday February 24, 2019

Thanks Scott for your posting this morning. Despite the weather now revealing a beautiful morning, based on the likelihood of there not being other stations around (portable or home), I have decided not to make the two-hour drive (each way) down to Kamarun Lookout today. Instead, if anyone wants to ...
by VK4OE
Sat Feb 23, 2019 9:58 pm
Forum: 1296, Microwaves and Opto
Topic: MAD - Sunday February 24, 2019
Replies: 27
Views: 1670

Re: MAD - Sunday February 24, 2019

Hi y'all! It's Saturday evening and the forecast weather for tomorrow is not too bad - only a little windy, more so on hill tops, I imagine. We should have known better than to be scared off by the forecasters at the BOM..... So I propose to go out to Kamarun Lookout and to be there in the middle of...
by VK4OE
Mon Feb 18, 2019 2:17 pm
Forum: Transceivers, Transmitters & Receivers
Topic: FT-817 DC Input Socket
Replies: 5
Views: 866

Re: FT-817 DC Input Socket

Thanks Mark for your suggestion - it is a passing concern for me as well, but I'm not about to fix things that "ain't broke yet"! You and other readers may be interested in the fact that I have solved my problem already following a very helpful suggestion from Guy at "VK Radio Repairs", the Yaesu se...
by VK4OE
Mon Feb 18, 2019 1:04 pm
Forum: Transceivers, Transmitters & Receivers
Topic: FT-817 DC Input Socket
Replies: 5
Views: 866

FT-817 DC Input Socket

Greetings to all readers. One of my FT-817 radios (used as IF transceivers for microwave bands) has developed a strange situation inside the DC input connector. I'm looking for helpful suggestions that may lead to a solution. What has actually happened is that a 1.5mm thick annulus of plastic has sn...
by VK4OE
Fri Feb 15, 2019 5:46 pm
Forum: 1296, Microwaves and Opto
Topic: MAD - Sunday February 24, 2019
Replies: 27
Views: 1670

Re: MAD - Sunday February 24, 2019

Hello to all readers. The date set for this "Microwave Activity Day" is part of a schedule of similar outings that is published on the Brisbane VHF Group web pages. These are all on Sundays because taking microwave gear portable is greatly to be preferred in the daytime and, as Scott has suggested, ...
by VK4OE
Wed Jan 09, 2019 4:06 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2019 Summer VHF-UHF Field-Day Contest
Replies: 17
Views: 1914

2019 Summer VHF-UHF Field-Day Contest

Greetings to all readers! This event is coming up this coming week-end. Weather permitting, on the Sunday morning I propose to be operating from Kamarun Lookout near the Lamington National Park (QG61NU) using all bands from 50 MHz to 76 GHz inclusive. In a different way from my usual pattern of FD o...
by VK4OE
Fri Nov 16, 2018 5:30 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2018 Spring VHF UHF Field Day
Replies: 13
Views: 1835

Re: 2018 Spring VHF UHF Field Day

Hi Scott and other readers. Weather permitting, my plan for next weekend is to be at Kamarun Lookout (QG61NU) on the Saturday evening from about 6:30 p.m. onwards (local time) followed by being at Mt Gravatt in Brisbane (QG62MK) on the Sunday morning starting around 6 a.m. I should have all bands av...
by VK4OE
Thu Nov 15, 2018 5:51 pm
Forum: Beacons
Topic: VK4RBB - Brisbane beacons back on air
Replies: 15
Views: 2724

Re: VK4RBB - Brisbane beacons back on air

Greetings to all!
All the VK4RBB signals are now back 'on air', as of about an hour ago.
Please report by way of 'spotting' on the VK-Logger.
Cheers and 73,
--Doug, VK4OE.
by VK4OE
Thu Nov 08, 2018 7:49 pm
Forum: Beacons
Topic: VK4RBB - Brisbane beacons back on air
Replies: 15
Views: 2724

Re: VK4RBB - Brisbane beacons - Off-air - Nov 2018

Greetings to all readers. This is just a short note to advise that, as of this afternoon, all transmissions from VK4RBB have been turned off to allow for trouble shooting of the 3398 MHz hardware which reportedly has failed in recent days. Initial inspection pointed to a damaged DC power connector o...
by VK4OE
Wed Sep 19, 2018 9:36 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: VK4 23 September MAD 23/23
Replies: 2
Views: 465

Re: VK4 23 September MAD 23/23

Thanks for your posting, Kevin. For the MAD, I plan to be operating portable from somewhere on high ground near the middle of North Stradbroke Island. I expect to be able to commence operations around 12:00 midday. [I'll find out on-site whether the weather RADAR installation there will be a source ...
by VK4OE
Thu Apr 21, 2016 12:24 pm
Forum: Beacons
Topic: VK4RBB - Brisbane beacons back on air
Replies: 15
Views: 2724

Re: VK4RBB - Brisbane beacons off air for a while

Greetings to all. This coming Sunday morning will see the VK4RBB suite of beacons cease transmission for a few weeks. Weather permitting, the beacon hardware will be removed from the present location at Murarrie and prepared for later installation at the new location on Mt Cotton - QG62OJ52. The Bri...
by VK4OE
Thu Mar 03, 2016 1:03 pm
Forum: 1296, Microwaves and Opto
Topic: Elcom Synthesizers
Replies: 45
Views: 6328

Re: Elcom Synthesizer - Model 1301

Greetings to all! It seems to me as if the available supply of useful Elcom synths is gradually drying up (or, for some models, has already dried up), but I am guessing that quite a few are still stashed away in drawers waiting for project impetus to happen.....[Hey, if anyone has a '1295 model that...
by VK4OE
Sat Feb 06, 2016 10:27 pm
Forum: Transceivers, Transmitters & Receivers
Topic: IC-7300 - Software Defined Radio
Replies: 51
Views: 4964

Re: IC-7300 - Software Defined Radio

Greetings again to all readers. Responding to Steve VK3MEG's suggestion that I consider an ELAD radio instead of the '7300, the chief reason I'm still attracted to the '7300 is that I can have a waterfall display (albeit an abbreviated one) of weak signals without connecting an additional computer. ...
by VK4OE
Sun Jan 31, 2016 9:53 pm
Forum: Transceivers, Transmitters & Receivers
Topic: IC-7300 - Software Defined Radio
Replies: 51
Views: 4964

Re: IC-7300 - Software Defined Radio

Greetings, gentlemen. I was intrigued by your recent comments on this thread that it would have been attractive if the SDR and on-screen features of the '7300 were available on bands VHF and above. Such thinking was behind my 'feeler' posting a couple of months ago in which I proposed the value of u...
by VK4OE
Wed Dec 23, 2015 4:54 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2016 Summer VHF-UHF Field Day
Replies: 75
Views: 6298

Re: 2016 Summer VHF-UHF Field Day

Greetings to all! Subject, as always, to the weather, I propose to be operating for a couple or three hours from Mt Gravatt in Brisbane (QG62MK) on the Saturday evening after about 7:00 p.m. (local time), then re-commencing on the Sunday morning from the Border Ranges National Park (QG61NP) in North...
by VK4OE
Mon Nov 02, 2015 3:46 pm
Forum: 1296, Microwaves and Opto
Topic: WR-62
Replies: 6
Views: 683

Re: WR-62

Yes, but you'd have to specially design/make any coaxial to waveguide transitions if you're chasing efficiency - the waveguide wavelength is abnormally long as cut-off is approached and off-the-shelf transitions are designed for a much higher frequency! Cheers and 73, --Doug VK4OE.
by VK4OE
Sun Nov 01, 2015 10:14 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: Heads Up!: 2015 Spring VHF-UHF Field Day
Replies: 54
Views: 4875

Re: Heads Up!: 2015 Spring VHF-UHF Field Day

Greetings again to all. Developments that have happened since my earlier posting.....now, weather permitting, I will only be operating on the Saturday evening - I have a non-radio commitment on the Sunday morning that I need to be involved with. So on the Saturday evening from around 6:00 p.m. (or a...