661
Shortwave Pirate Radio In North America And Around The World, And Other Signals That Go Bump In The Night
We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations.
Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.
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662
The RF Workbench / Re: Beacon Project - 26-27 MHz 11 Meter Band Export Radio + Keyer
« on: January 10, 2020, 1856 UTC »
I heard the beacon is now in his truck hooked to a texas star 250 with phased 1/4 waves!
an im back quiet
an im back quiet
663
The RF Workbench / Re: Power supply voltage
« on: January 10, 2020, 1855 UTC »
Some psus have at least two pots inside, one to adjust v and the other the crowbar trip point. If all you''re going to use on that psu is the bacon, set the psu pot to whatever voltage you can and enjoy.
664
Huh? / Re: A Lazy Fix 20 Years Ago Means the Y2K Bug Is Taking Down Computers Now
« on: January 09, 2020, 2018 UTC »
And if that wasn't enough;
https://en.wikipedia.org/wiki/Year_2038_problem
https://en.wikipedia.org/wiki/Year_2038_problem
665
10/11 meters / Re: 11 meter private comms?
« on: January 09, 2020, 2010 UTC »
The cheapest and best against the milieu would be v/uhf with voice inversion.
666
10/11 meters / Re: I would like to build a beacon on 11 meters
« on: January 09, 2020, 2006 UTC »
I think seeing his cb slide across the desk and out the now broken window as it crazily chases some car down the road might send a message.
667
MW Loggings / Re: KHAT 1210 AM 0323 UTC 09 Jan 2020
« on: January 09, 2020, 2004 UTC »
Nice catch and expecting a full report on the loop.
669
Equipment / Re: Inexpensive VNA
« on: January 06, 2020, 1947 UTC »
A Simple Step by Step Guide to Updating the NanoVNA Firmware
Thank you to RJ Juneau (ylabrj / VA3YLB) for sharing with us his NanoVNA firmware update guide for idiots. NanoVNA firmware is updated fairly often, so this is a good reference guide for those who want to test the latest code as updating the firmware is a multi-step process.
https://www.rtl-sdr.com/a-simple-step-by-step-guide-to-updating-the-nanovna-firmware/
NanoVNA Version 2.0 First PCB Pictures Released + NanoVNA Naming & Credit Clarifications
Back in October 2019 we posted about the upcoming NanoVNA version 2.0 which back then was still being designed with a predicted release date of January 2020. Recently some photos of the NanoVNA 2.0 prototype have been uploaded to the NanoVNA groups.io forum.
The NanoVNA 2.0 is expected to retail at around US$60 which is around the same price as the current NanoVNA. The current NanoVNA is limited in that it can only measure from 50 kHz to 900 MHz, with performance being reduced above 300 MHz. It can be extended to 1.5 GHz, but with severely reduced performance. The NanoVNA 2.0 will be able to measure from 50 kHz to 3 GHz, and possibly up to 3.5 GHz. Version 2.0 will also have improved dynamic range.
https://www.rtl-sdr.com/nanovna-version-2-0-first-pcb-pictures-released-nanovna-naming-credit-clarifications/
Thank you to RJ Juneau (ylabrj / VA3YLB) for sharing with us his NanoVNA firmware update guide for idiots. NanoVNA firmware is updated fairly often, so this is a good reference guide for those who want to test the latest code as updating the firmware is a multi-step process.
https://www.rtl-sdr.com/a-simple-step-by-step-guide-to-updating-the-nanovna-firmware/
NanoVNA Version 2.0 First PCB Pictures Released + NanoVNA Naming & Credit Clarifications
Back in October 2019 we posted about the upcoming NanoVNA version 2.0 which back then was still being designed with a predicted release date of January 2020. Recently some photos of the NanoVNA 2.0 prototype have been uploaded to the NanoVNA groups.io forum.
The NanoVNA 2.0 is expected to retail at around US$60 which is around the same price as the current NanoVNA. The current NanoVNA is limited in that it can only measure from 50 kHz to 900 MHz, with performance being reduced above 300 MHz. It can be extended to 1.5 GHz, but with severely reduced performance. The NanoVNA 2.0 will be able to measure from 50 kHz to 3 GHz, and possibly up to 3.5 GHz. Version 2.0 will also have improved dynamic range.
https://www.rtl-sdr.com/nanovna-version-2-0-first-pcb-pictures-released-nanovna-naming-credit-clarifications/
670
Equipment / Re: Everything you wanted to know about my antenna farm, but were afraid to ask
« on: January 05, 2020, 2221 UTC »
To see the patterns you can try eznec
https://www.eznec.com/demoinfo.htm
https://www.eznec.com/demoinfo.htm
671
Utility / Re: 11175 USB
« on: January 05, 2020, 2212 UTC »
HFGCS has been mighty quiet last few days, just heard the first emission a few minutes ago after several hours of monitoring.
2215Z 05JAN19
Last caller last caller this is RECKLESS RECKLESS how copy?
2215Z 05JAN19
Last caller last caller this is RECKLESS RECKLESS how copy?
672
General Radio Discussion / Re: TDoA Questions & maybe an article?
« on: January 05, 2020, 0100 UTC »
For nvis, a dipole only a foot or two off the ground will do.
There are some crazy nvis designs out there;
http://on5au.be/content/ao/ao12.html
http://duvalaresjax.org/wp-content/uploads/2019/09/nvisBook.pdf
http://arrl-ohio.org/SEC/nvis/nvis.pdf
There are some crazy nvis designs out there;
http://on5au.be/content/ao/ao12.html
http://duvalaresjax.org/wp-content/uploads/2019/09/nvisBook.pdf
http://arrl-ohio.org/SEC/nvis/nvis.pdf
673
Equipment / Re: Consumer grade antenna splitters
« on: January 05, 2020, 0042 UTC »
Finally got off my arse to do some testing of the various splitters on hand. The need for sharing one hf antennae with several rx at the same time has been apparent for ages, but I find it hard to get out of bed some days.
Anyway, I have 3 or more 2 port splits laying about, and one 6 porter. I need 3 ports, but if I employ the 6 porter to get 3 outputs it incurs 6dB loss per port where a 2 porter is down 3dB. With a compromise antennae, one wants to save all the deebees one can. I also learned I don't have enough f connector to X adapters.
speaking of bees
https://www.youtube.com/watch?v=xAhuSDRIDHE
In the case of a 2 port split beiong chosen due the loss, the need to switch between 2 table top sets yet give the sdr access full time arises. So what I did was first test the splits on hand for loss on the ambc band, one was marked v/uhf so I discarded that, the other two were similar in construction but differing in make. On testing, the *Holland Electronics GHS-2 was 3 to 10dB or so less loss than a **GE 2-Way Splitter 5-2500MHz.
Regarding the incurred loss, can't really tell the diff and neither do the rigs, and that is exactly what I wanted from this exercise.
I fed one output of the splitter to a ***AD 4 port antenna switch and that to two hf rigs. So far so good, can run the sdr any time in conjunction with any table top rig desired.
Shoulda done this years ago.
All said, must remember to never tx thru the setup as that will blow away an sdr and prolly a pc too. Another switch with at least 2 ports will allow the hf tx rigs to have the antennae all to themselves when desired.
* http://www.hollandelectronics.com/catalog/catalog.php?product_id=GHS-Series-Digital-CATV-Splitters
** https://www.ebay.com/itm/GE-33526-Pro-Digital-2-way-Coax-Splitter-FREE-SHIPPING-/274115565467?_trksid=p2349526.m4383.l4275.c1#viTabs_0
*** https://www.alphadeltaradio.com/delta-4b.html
Anyway, I have 3 or more 2 port splits laying about, and one 6 porter. I need 3 ports, but if I employ the 6 porter to get 3 outputs it incurs 6dB loss per port where a 2 porter is down 3dB. With a compromise antennae, one wants to save all the deebees one can. I also learned I don't have enough f connector to X adapters.
speaking of bees
https://www.youtube.com/watch?v=xAhuSDRIDHE
In the case of a 2 port split beiong chosen due the loss, the need to switch between 2 table top sets yet give the sdr access full time arises. So what I did was first test the splits on hand for loss on the ambc band, one was marked v/uhf so I discarded that, the other two were similar in construction but differing in make. On testing, the *Holland Electronics GHS-2 was 3 to 10dB or so less loss than a **GE 2-Way Splitter 5-2500MHz.
Regarding the incurred loss, can't really tell the diff and neither do the rigs, and that is exactly what I wanted from this exercise.
I fed one output of the splitter to a ***AD 4 port antenna switch and that to two hf rigs. So far so good, can run the sdr any time in conjunction with any table top rig desired.
Shoulda done this years ago.
All said, must remember to never tx thru the setup as that will blow away an sdr and prolly a pc too. Another switch with at least 2 ports will allow the hf tx rigs to have the antennae all to themselves when desired.
* http://www.hollandelectronics.com/catalog/catalog.php?product_id=GHS-Series-Digital-CATV-Splitters
** https://www.ebay.com/itm/GE-33526-Pro-Digital-2-way-Coax-Splitter-FREE-SHIPPING-/274115565467?_trksid=p2349526.m4383.l4275.c1#viTabs_0
*** https://www.alphadeltaradio.com/delta-4b.html
674
Huh? / Re: An Ode to Little Christmas (with apologies)
« on: January 05, 2020, 0003 UTC »
A well played license, sir!
675
Huh? / Re: An Ode to Little Christmas (with apologies)
« on: January 04, 2020, 2345 UTC »
Lol do manatii even have roe?
