Search found 63 matches

by VK2EFM
Wed Aug 24, 2016 10:18 am
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Counterfeit BLF188XR
Replies: 7
Views: 5800

Re: Counterfeit BLF188XR

Hi, the transistors I bought weren't cheap either. Just plain and simple fakes. Thankfully there is paypal.

I suspect this is going down the path of requesting a certificate of conformance with the purchase, given the amount of cash involved. >>>> approved suppliers.

73 Allan
by VK2EFM
Tue Aug 23, 2016 8:23 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Counterfeit BLF188XR
Replies: 7
Views: 5800

Re: Counterfeit BLF188XR

I bought one of those fake transistors.... you could see the tabs weren't correct and the inkjet part number. I complained that is was a fake and the nice eBay lady gave me my money back. I was even prepared to bride the guys at work in the NDT lab with a packet if Tam-tams to get it x-rayed. :twist...
by VK2EFM
Fri Aug 19, 2016 8:50 pm
Forum: 50 MHz
Topic: Another missed opportunity
Replies: 12
Views: 7921

Re: Another missed opportunity

Hi Wayne,

However, there is no substitute for a good QSO.

A few times I have watched WPSR between myself and Peter, ZL4LV and picked the best time to put out call on SSB.

Allan
by VK2EFM
Fri Aug 19, 2016 8:18 pm
Forum: 50 MHz
Topic: Another missed opportunity
Replies: 12
Views: 7921

Re: Another missed opportunity

Hi Wayne, Simple way is the map feature on the wsprnet website. Just check out the 6m map feature. http://wsprnet.org/drupal/wsprnet/map Hopefully the link worked. .....anyway it allows me to play 6m whilst at work :shock: Over winter I left the beam in the ZL direction, and it was interesting what ...
by VK2EFM
Fri Aug 19, 2016 6:46 pm
Forum: 50 MHz
Topic: Another missed opportunity
Replies: 12
Views: 7921

Re: Another missed opportunity

It's not hard to check if WSPR spots are genuine. In the case the spots prior to N3IZN, is me with VK3PP. I leave my 6m WSPR gear running all the time, so if there is propagation it is reported and others might be able to take advantage :)
by VK2EFM
Thu Aug 18, 2016 8:31 am
Forum: Propagation & Solar Cycle News
Topic: Solar Cycle 25...how old will u be?
Replies: 39
Views: 18910

Re: Solar Cycle 25...how old will u be?

Hi Scott,

I know what you mean... I had my Novice License in 1982, when I was 14 and the Full call when I was 15, and I remember being one of the youngsters :shock:

Allan
by VK2EFM
Wed Aug 17, 2016 6:24 pm
Forum: Propagation & Solar Cycle News
Topic: Solar Cycle 25...how old will u be?
Replies: 39
Views: 18910

Re: Solar Cycle 25...how old will u be?

Ah well, 55. Will there anybody to talk with? Might have my HB amplifier finished by then..... :crazy:
by VK2EFM
Fri Aug 05, 2016 7:25 pm
Forum: 1296, Microwaves and Opto
Topic: 23 on 23 October
Replies: 19
Views: 3228

Re: 23 on 23 October

....might have my transverter by then. Prefer Piri Piri chicken mystery bags. :shock: What Vk2 activity is planned on the central coast...?
Allan
VK2EFM
by VK2EFM
Fri Jul 29, 2016 2:05 pm
Forum: General Discussion
Topic: Bill Sinclair VK2ZCV
Replies: 2
Views: 3938

Re: Bill Sinclair VK2ZCV

Hi Gordon,

That is sad news.

I remember Bill in his more active days and the Port Field Day, setting Foxes for Foxhunts.

73,
Allan
by VK2EFM
Fri Jul 29, 2016 12:49 pm
Forum: 144 & 432 MHz
Topic: pre amps for 2m pre amp or LNA
Replies: 8
Views: 6193

Re: pre amps for 2m pre amp or LNA

Hi Steve, Mount the PreAmp/LNA at the antenna. You are using the amplifier to overcome the loss of the coaxial cable and the Noise Figure (NF) of your radio. Google Friis Law. Basically you will be going from a NF of (Cable loss + Radio Noise Figure) to NF of PreAmp. Also you need enough gain to ove...
by VK2EFM
Wed Jul 20, 2016 3:07 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: Trans-Tasman Low-Bands Challenge 2016
Replies: 6
Views: 4732

Re: Trans-Tasman Low-Bands Challenge 2016

I had fun... hurriedly putting up a 160m OCFD, in place of my 80m OCFD, finishing the task with 2 1/4 hours to before the contest started. Going around the house turning off all the known emitters of EMI (no internet, no big screen TV, and no LED lights)... I still had a few issues, with S5 to S6 on...
by VK2EFM
Wed Jun 29, 2016 11:36 am
Forum: LF, MF, HF
Topic: 160m resonator kit for Butternut HF9V
Replies: 6
Views: 4535

Re: 160m resonator kit for Butternut HF9V

Wayne,

Hope they don't check the site, however... dream up a good story. "rebuilding the antenna for a good mate and some parts are missing" :D

Allan
by VK2EFM
Wed Jun 29, 2016 8:38 am
Forum: LF, MF, HF
Topic: 160m resonator kit for Butternut HF9V
Replies: 6
Views: 4535

Re: 160m resonator kit for Butternut HF9V

Hi Wayne,

A thought... what is the recomended spare parts for the 160m kit?

Allan
by VK2EFM
Sun Jun 26, 2016 8:29 pm
Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
Topic: 2016 European Tour
Replies: 11
Views: 5408

Re: 2016 European Tour

Iain,

The Deutsches Museum in Munich was a place I could days...

I reckon they had the best placed OCFD in the world!

Enjoying your pictures, as I was in Munich a few weeks ago for work.

73,
Allan
VK2EFM
by VK2EFM
Sun May 15, 2016 7:00 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: SMPS, which would you recomend?
Replies: 15
Views: 6207

Re: SMPS, which would you recomend?

One you can mount in enclosure with feed thrus on the input and output. Working professionally in EMI, all I can sat is shielding and filtering.
Allan
VK2EFM
by VK2EFM
Mon May 02, 2016 9:11 am
Forum: EMC, Interference
Topic: H.F Interference, how to contact the ACMA
Replies: 14
Views: 5690

Re: H.F Interference, how to contact the ACMA

Hi,

The other approach might be to narrow the issue down to a power pole (if it is an insulator arcing) and give the power authority a call.

73,
Allan
by VK2EFM
Tue Apr 26, 2016 8:27 pm
Forum: LF, MF, HF
Topic: Legally Indentifying
Replies: 10
Views: 5594

Re: Legally Indentifying

Hi Nev,

Yes, it does when you turn it on....

On the U3S I have, you need to program additional transmit frames, and with limited to 15 frames it is a real pain. :?

Hence my comment, why wasn't it built into the standard on day 1, as it is generally a licensing requirement?? :D

73 Allan
by VK2EFM
Tue Apr 26, 2016 6:11 pm
Forum: LF, MF, HF
Topic: Legally Indentifying
Replies: 10
Views: 5594

Re: Legally Indentifying

Hi Steve, Good point about the CW ID. The 80m WSPR frequency here in VK2 is interesting. The WIA has it's weekly broadcast on 3.595MHz LSB. I have managed to remember turn off the U3S just in time, a few times. Prefer not to rock the boat on this one. Silly question, but why wasn't a morse ID progra...
by VK2EFM
Mon Apr 25, 2016 6:53 pm
Forum: WSPR
Topic: WSPR Power Consumption
Replies: 7
Views: 4249

Re: WSPR Power Consumption

Nev, You've set the bar high...... including the PC. :o Could use a tablet....? There is a thread on the QRP Labs Yahoo group about a receiver to go with the U3S. One version of WSPR software takes I and Q input. It was started by Hans Sommers Use the U3S as local oscillator for a direct conversion ...
by VK2EFM
Sun Apr 24, 2016 7:59 pm
Forum: WSPR
Topic: WSPR Power Consumption
Replies: 7
Views: 4249

Re: WSPR Power Consumption

Hi Nev,

Planning on using a RTL dongle and a up convertor. RTL dongle runs from the USB port. A PSU is required for the up converter.

HDSDR and virtual audio cables and WSPR software.

73,
Allan