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Thread: Valve Amp - Safe Power For RTTY?
Post: RE: Valve Amp - Safe Power For RTTY?
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VK4CCV Wrote: (14-12-2023, 06:54 PM)
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You must have a special edition manual ??
My manual only goes to 21 then the schematic.
I will go to the ACOM site to see if there is an update.
Pete D... |
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ZL3RC |
Transceivers, Transmitters & Receivers
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3 |
4,913 |
15-12-2023, 07:04 AM |
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Thread: Valve Amp - Safe Power For RTTY?
Post: RE: Valve Amp - Safe Power For RTTY?
| Pete if you have a look at the manual page 29 has the answer to your question.
Roger ZL3RC |
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ZL3RC |
Transceivers, Transmitters & Receivers
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3 |
4,913 |
14-12-2023, 06:20 PM |
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Thread: Turn over your dusty or unloved uWave gear
Post: RE: Turn over your dusty or unloved uWave gear
| Hi Jayson. Ive been playing with the black ADF4351 PLL boards available on the web. At the beginning I thought it was going to be way to hard, it isn't but there are somethings that need doing to thes... |
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ZL3RC |
1296MHz, Microwave & Opto
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6 |
29,977 |
19-08-2023, 08:24 AM |
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Thread: Honda EU22i - high EMI
Post: RE: Honda EU22i - high EMI
| The VKLogger Forum is archived here if that's any help https://vk4ghz.com/forum/
Cheers
Roger
ZL3RC |
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ZL3RC |
EMC, Interference
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2 |
2,884 |
17-03-2023, 05:30 PM |
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Thread: Query re MSK burn image
Post: RE: Query re MSK burn image
| Looking at the top Image it looks like a very strong signal passing across the frequency.
This would explain the slopping blob and its tapped ends as they are following the audio passband response (sa... |
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ZL3RC |
Meteor Scatter (MS)
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5 |
1,285 |
01-01-2023, 09:35 AM |
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Thread: VK3XDK 432 Transverter
Post: RE: VK3XDK 432 Transverter
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VK4ADC Wrote: (31-12-2022, 07:09 PM)
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Roger
Refer post #3 above for LO level and stage gain determination, however one of the MMICs in each path was replaced by a capacitor on that board layou... |
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ZL3RC |
144MHz & 432MHz
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8 |
6,296 |
31-12-2022, 07:31 PM |
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Thread: VK3XDK 432 Transverter
Post: RE: VK3XDK 432 Transverter
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VK4VU Wrote: (30-12-2022, 07:34 PM)
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Hi Roger,
I gather that you originally posted a picture of the board that you have.
My recollection is that the earlier version had etched striplines for ... |
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ZL3RC |
144MHz & 432MHz
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8 |
6,296 |
31-12-2022, 03:54 PM |
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Thread: VK3XDK 432 Transverter
Post: VK3XDK 432 Transverter
| I found a VK3XDK 432 transverter in a box of bits I was given recently and searching on the web didn't retune anything useful.
This is the board Im talking about and as you can see its had a SMD sw... |
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ZL3RC |
144MHz & 432MHz
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8 |
6,296 |
14-12-2022, 06:00 AM |
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Thread: 60 Minutes: Finding MH370: New breakthrough
Post: RE: 60 Minutes: Finding MH370: New breakthrough
| I thought the WSPR thing had been put to bed years ago...its rubbish.
But this is interesting. Its long but worth watching and was originally posted on the WSJT.io group so some may have already se... |
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ZL3RC |
General Discussion
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8 |
2,576 |
01-03-2022, 03:26 PM |
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Thread: Beacons
Post: RE: Beacons
| Thanks Leigh,
Well as a proof of concept Im going to setup ZL3TEN to do the freq. jumping operation but Ill have to use my call sign on the WSPR channel as we don't currently have a licence for the f... |
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ZL3RC |
144MHz & 432MHz
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24 |
6,389 |
25-07-2018, 08:41 AM |
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Thread: Beacons
Post: RE: Beacons
| Ive been interested in WSPR beacons for a while now and as Im currently upgrading ZL3SIX and ZL3TEN is has come up again over here too.
Living close to a strong WSPR beacon could be problematic but... |
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ZL3RC |
144MHz & 432MHz
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24 |
6,389 |
23-07-2018, 05:21 PM |
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Thread: Freescale 1296 amp design
Post: RE: Freescale 1296 amp design
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VK4UH Wrote: (10-09-2016, 06:01 PM)
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Does anyone know if anyone is producing a board,kit or even complete pallet for the Freescale 1296 SSPA AS DESCRIBED IN DUbus Vol44 4.quarter?
Kevin VK4UH
B... |
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ZL3RC |
1296MHz, Microwave & Opto
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3 |
2,627 |
03-01-2018, 06:46 PM |
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Thread: 23cm amp development at W6PQL
Post: 23cm amp development at W6PQL
| Was having a look at Jims web site to order some more bits and noticed some interesting text at the top of his home page.
"Coming in late January, a single-device 650w amplifier for 23cm (50V LDMOS... |
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ZL3RC |
1296MHz, Microwave & Opto
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2 |
2,729 |
03-01-2018, 06:43 PM |
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Thread: Moonbounce on 1296 MHz
Post: RE: Moonbounce on 1296 MHz
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ZL2BRG Wrote: (13-10-2016, 12:50 PM)
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I've put up 4 x 28 ele DL6WU's on 23cm and currently run 150w. Whats the chances of eme with that ?
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Simon you will be easy able to work a number of statio... |
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ZL3RC |
E.M.E.
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28 |
11,121 |
14-09-2017, 04:47 AM |
