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Messages - R4002

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The 26.48 MHz to 26.95 MHz and 27.54 MHz to 27.99 MHz bands have been allocated to government use since the 1950s, and there are frequencies in these bands in the channel plans for military, government and other users...if they use them or not is another question.  Of course, the freeband CB crowd has become the “primary” user (de facto) for this band and probably make the best use of it considering the propagation characteristics.  Like the VHF low band, it is still used, quite heavily in some parts of the country.  The military still uses 30 to 50 MHz (30 to 88 MHz) as its primary tactical air to ground/ground to ground combat net radio band.

Ireland recently allocated 30-50 MHz for amateur use (secondary allocation, with military still as the primary user) since other land mobile (private land mobile) users are completely off that band in Ireland. 

Interesting re: double use of the 6200 kHz to 6300 kHz portion, especially considering that 6215 kHz is the international marine distress/calling/emergency frequency for the 6 MHz maritime mobile band. 

In regards to 80 meters/75 meters, I've read several reports about fishing fleets using frquencies in/near 80m/75m for maritime uses.  In ITU region 2, its 3500 kHz to 4000 kHz 3.5 MHz to 4.0 MHz, but I believe in Europe the band is smaller (maybe 3600 kHz to 3800 kHz or 3600 kHz to 3900 kHz?)  3900-4000 kHz is, or was, allocated for broadcasting at one point. 

General Radio Discussion / Re: Brother Stair off the air?
« on: June 28, 2019, 1203 UTC »
He's often on several frequencies at once, sometimes with the same station on multiple frequencies but often through multiple stations (both shortwave and AM broadcast). 


General Radio Discussion / Re: Brother Stair off the air?
« on: June 27, 2019, 1204 UTC »
Maybe he's going back to prison? 

As far as the "archives" go - there's gotta be what, 30-40 years worth of Brother Stair ramblings to choose from? 

Fishermen are well-known to use the marine bands (the 6 MHz marine allocation is 6200 kHz to 6525 kHz, worldwide) and other out of band frequencies, including the fixed/mobile bands and aeronautical bands.  Sometimes they pop up in the ham bands too. 

Technically speaking, they are the legal users of 6200-6525 kHz and have every right to be on 6230 kHz. 

10/11 meters / Re: 11 meters is active 2030 UTC 25 June 2019
« on: June 26, 2019, 2026 UTC »
Awesome.  Some activity on 27.025, 27.085, 27.265, 27.285 MHz and several other in-band activities just shy of 2030 UTC (1630 UTC locally)

Via the Westminster, MD KiwiSDR.  Two OMs chatting away about la calle ("the street" literally).  At 2024 UTC, a third station joined in.  Seems like freebanders or maybe fishing boats.  One of the stations has some background noise.  Considerable fading. 

10/11 meters / Re: 11 meters is active 2030 UTC 25 June 2019
« on: June 26, 2019, 1320 UTC »
YL with truckstop advertisements on CH19 sometime this afternoon.  Was entertaining.

Go to channel 23 for the "truck wash" lot lizard type ads or CB shops advertising their wares on channel 19?  I've heard several lot lizards talking on 19 during band openings.  Gotta love 27.185 MHz.

10/11 meters / 11 meters is active 2030 UTC 25 June 2019
« on: June 25, 2019, 2033 UTC »
26.915 MHz, lots of in-band frequencies, 27.390 MHz LSB, 27.425 MHz LSB, 27.475 MHz AM (then switched to LSB) and several other out of band frequencies active at 2030 UTC.  26915 AM is quite busy.  27.385 LSB/Channel 38 LSB as well as 27.025 MHz AM/Channel 6 AM going non-stop. 

Mix Radio International pirate radio simulcast multiple frequencies at once 60 meter band 5100 kHz AM and 5113 kHz USB

5113 kHz USB 5.113 MHz USB via Westminster, MD KiwiSDR.  SIO 555 on both frequencies, switching back and forth between 5100 AM and 5113 USB.  "Funeral For A Friend/Love Lies Bleeding" going strong at 2026 UTC. 

Mix Radio International on 5100 kHz AM and 5113 kHz USB, the 5113 kHz signal appears to be a second or so ahead of the 5100 kHz signal.  Good signals on both frequencies on the COMMSIGMA KiwiSDR at 2020 UTC tune in time with "Funeral For A Friend" playing.

The Relay Station on 5100 kHz doing a relay for Mix Radio International

I'm yet to hear OTR during the day on 13560 but often hear them on 6770 in the early evening on the COMMSIGMA KiwiSDR.

Do we have a "schedule" for when OTR / Old Time Radio switches back and forth from 6770 kHz and 13560 kHz? 

Equipment / Re: Notch Filter for the 9330 kHz WBCQ SuperStation
« on: June 25, 2019, 1851 UTC »
Thanks Chris and COMMSIGMA.  I use both your KiwiSDRs on a pretty regular basis, and the WBCQ signal on 9330 kHz is insanely powerful (especially on the Westminster, MD KiwiSDR). 

A notch 3x up in frequency?  9330 kHz x3 is 27990 kHz (27.990 MHz).  Hmmm....would this mean a similar sized notch effect just below the 28.000 MHz 11 meter freeband / 10 meter amateur band interface?  While there isn't a lot of activity in the Americas in the upper portion of 27 MHz (unless the band is really busy), the UK FM band, CADS and WPAS bands (Irish Church Radio, UK FM CB, etc.) are 27601.25 to 27991.25 and 27605 to 27995.  Would the UK FM Channel 19, 27.78125 MHz / 27781.25 kHz be notched out as well? 

While most 11m CB activity tops out in the 27.8 MHz to 27.9 MHz region (channel 40 on the high band is 27.855 MHz), the 27.8 MHz to 28.0 MHz region is heavily used by 27 MHz Church transmitters and other 11m DX targets coming out of Europe, Ireland and the UK. 

Shortwave Broadcast / Re: WBCQ Superstation 9330 AM 18 Jun 2019
« on: June 24, 2019, 1251 UTC »
So Brother Stair's sex cult "ministry" used Craig Mack as a marketing tool and when they were done with him he died conveniently? 

Sounds like AW is praising the "ministry" that bought all his slots to allow for the purchase of the 500kw transmitter? 

Equipment / Re: V/UHF antennas other than Disconeys
« on: June 24, 2019, 1230 UTC »
Think I'll try the discone plus amp plus fmbc trap plus height. A log periodic could be mounted vertically and garner some omnidirectionality but it'd still have a favored direction.

Indeed.  I've done several quasi-experimental tests with the VHF and UHF bands involving simple vertical 1/4 wave and 5/8 wave base station antennas and at VHF (151 MHz, specifically the MURS frequencies) even getting the antenna 2-3 feet higher than it was previously make a noticeable difference with distant stations.    I have good experience with discones, I'm sure you all remember the scanner discone RadioShack used to sell with claimed 25-1300 MHz frequency coverage.  It did excellent on VHF low band for receive purposes and even better on the VHF/UHF/800 MHz land mobile radio bands and the VHF and UHF AM aircraft bands.  For broadband omnidirectional I think its pretty close to the best you can do.  I believe the military make extensive use of the discone design for both UHF-AM 225-400 MHz and VHF-FM 30-88 MHz broadband coverage with frequency hopping radios.  For fixed frequency (single channel) use, my understanding is the RC-292 style vertical with ground planes is considered the ideal omnidirectional antenna. 

I don't know if you live in an area where the 152.480 MHz to 152.840 MHz band is still used for paging (FCC Part 22 - in some areas the frequencies are slowly being repurposed for land mobile) but a filter that knocks out those frequencies could be helpful if there's still high power pagers in your area.  I know in lots of places pagers are completely gone from 152 MHz and are all on 900 MHz.  Since I know UHF mil air is one of your monitoring targets, taking out strong signals that have second harmonics in the 304 MHz to 306 MHz band could help you dig out distant signals.  If there's no paging on 152 MHz in your area (or, if there is a monitoring target on 152 MHz in your area), then don't worry. 

FM BC trap is a very good idea regardless, especially if you're planning on running a preamp. 

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