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Messages - Josh

Pages: [1] 2 3 ... 249
1
Equipment / Re: Wellbrook help
« on: January 24, 2020, 2203 UTC »
Yeh I can't see a diff between the coaxes listed as far as rx performance goes. On the diameter there may be a diff, with larger loops having a bit more input to the amp and better response at lower freqs.

2
Nice, no piddling around with a few hundred kilometers, this is theater-wide jamming!

also
https://www.youtube.com/watch?v=2jy3JU-ORpo&feature=emb_title

3
Huh? / Re: Al, look up, opportunity abounds!
« on: January 24, 2020, 2133 UTC »
Apparently where that phrase comes from, south America or the Carib, the iguana is more common in the wild than chikins.

4
Utility / Re: CIS Navy on HF
« on: January 24, 2020, 2128 UTC »
Ah well, always next time.

Also for unattended monitoring been looking into these gizmos;
https://www.ebay.com/itm/Morse-Code-Reader-CW-Decoder-Morse-Code-Translator-Ham-Radio-Essential/372858119170?hash=item56d0136402:g:Gu0AAOSwPkhd4KL7
cheap and if given decent sending they do a fair job, and don't have to leave a pc on to just decode cw.
Have to find the vid where the guy found out what control does what as apparently they have some controls that aren't detailed.


5
Utility / Re: CIS Navy on HF
« on: January 24, 2020, 2123 UTC »
i havenít heard anything rither Josh, so Iíll be interested to know what you find.

Lol I was hoping you'd catch this post before 2200 and tune in!

6
Satellite, Radiosondes and Other VHF/UHF Signals / Re: UHF mil air
« on: January 24, 2020, 2120 UTC »
I'm sure the smolinksi kid was being condescending.

7
That splains why the US Army's elint spyplane was circling the city.



Surely they mapped out tha malishee's electronic order of battle!

400 million guns and rising, trillions of rounds of ammunition, 80 million gun owners. Good luck defeating that army.

8
Utility / Re: CIS Navy on HF
« on: January 24, 2020, 2111 UTC »
Nil heard on the usual haunts lately, so will be trying for RIT's radio prognoz bcast on 7422, 1000/2200Z daily.
Prognoz, indicating prognosis or forecast, is the Russian navy's determination of what the ionosphere will support as far as HF comms are concerned. The tx is somewhat cryptic as there is dissent on how to read the bcast but it's likely date/time and channel designators rather than an encoded frequency list, but like said, dissent rules the day.

9
MW Loggings / Re: WWL (tent.) 870 AM 0645 UTC 24 Jan. 2020
« on: January 24, 2020, 2106 UTC »
Band goes long, locals go out and dx comes in. Nice change.

10
Utility / Re: 11232 USB 2144Z 08JAN19
« on: January 23, 2020, 2007 UTC »
CANFORCE 555 (CC-150 & CC-130 Trenton) calling Halifax Mil for pp to wing ops with Immediate priority exercise traffic.
2004Z 23JAN20

"CANFORCE 555 with posrep 3831N 08807W 2002Z EXERCISE over"

555 was S7 here, Halifax jba.

11
Huh? / Re: Al, look up, opportunity abounds!
« on: January 23, 2020, 1959 UTC »
Oh yes, the chicken of the trees!

12
Satellite, Radiosondes and Other VHF/UHF Signals / Re: UHF mil air
« on: January 23, 2020, 1951 UTC »
The why for this specific frequency range and choice of modulation methodology is due to one overwhelming  criterion; nuclear explosions.

When a nuke pops, it ionises a large region surrounding the fireball to the extent radio comms thru the fireball/mushroom cloud are completely absorbed. From around mw thru hf to lower vhf, radio comms will be down or degraded for several hours after the pop. Testing (popping real nukes) showed that high vhf to uhf sigs were least affected by nukes going off, so the planes and ground stations tasked with comms during national emergencies were devised with the v/uhf mux system, with high power and efficient antennae. Fm mode was chosen due its inherent amplitude/noise rejection properties as well as longstanding means to multiplex fm.

Speaking of mux, someone just fired up on 366.600 @ 1949Z 23JAN19 lol


13
Amateur Radio / Re: UHF/VHF repeater activity
« on: January 22, 2020, 1934 UTC »
Lotsa activity on rptrs and smplx here, sadly more digital lately. wich makes me reach for the lockout button.

14
So is this a better cut of meat or just cheaper or?

15
22 Meter Band Beacons / Re: 22m Beacon
« on: January 22, 2020, 0700 UTC »
They're known for sending teams out to each hifer on a monthly basis to ensure compliance.

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