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Topics - ThaDood

Pages: 1 ... 11 12 13 14 15 16 17 18 [19] 20 21 22 23 24 25 26 27 ... 34
271
Thought that thus was the weekend afterwards, since it's usually the weekend before ARRL Field Day, but not this year, apparently.      http://www.arrl.org/june-vhf

272
Awh… One big miss here. Just too bad that they couldn’t extend the range of the upper VHF RX from 200MHz limit, up to 225MHz, for for all-mode 222MHz in the 1 1/4M band. Yes, you can get a transverter for that, but still, it just misses that mark. Other than that, the IC-705 is very enticing. Hmmmmm... Makes you wonder if a firmware change can open that up to 222MHz?   https://swling.com/blog/2021/06/the-icom-ic-705-is-this-really-a-new-holy-grail-swl-bcl-receiver/  Yeah... I know... Nit picking to the MAX, but I'd like to see Icom go all-the-way.

273
Boomer FWR me this link for this TX:     https://www.ebay.com/itm/184784608562      The Blue Tooth feature wouldn't be a seller for me, but I could see where it would be attractive for others.

274
Surprised that we are in this see-saw weather, way below normal one week, cooking the next. Well, with this next heatwave coming for most of the Eastern half of USA and Canada, some of these late nights, early mornings, could yield some nice Tropo Propagation on the VHF / UHF bands. I like to use our tax $$$$ funded propagational beacons, a.k.a. the 162MHz, 24/7, Weather Stations. I'll put a scanner, or an HT, on scan on those FREQ's and see if the DX Weather Stations start coming in, besides the two that I normally get. Then again, when a DX station goes over our local 162.400MHz Station, that's a good give-away as well. I think that heatwaves suck, but if it does indeed yield to some nice Tropo Enhanced DX, might as well enjoy that.

275
I find it interesting that this news was not #1 headlines in various Amateur Radio news! Thus, I'm glad that WB8YST has brought the following to attention:

The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The new rules do not change existing RF exposure (RFE) limits but do require that stations in all services, including amateur radio, be evaluated against existing limits, unless they are exempted. For stations already in place, that evaluation must be completed by May 3, 2023. After May 3 of this year, any new station, or any existing station modified in a way that’s likely to change its RFE profile – such as different antenna or placement or greater power – will need to conduct an evaluation by the date of activation or change. http://www.arrl.org/news/updated-radio-frequency-exposure-rules-become-effective-on-may-3

 

http://w5rgv.org/new-fcc-rf-exposure-rules/

 

Results - RF Exposure Calculator (hintlink.com)

 

https://www.youtube.com/watch?v=65IEvZoXEyo

 

https://docs.fcc.gov/public/attachments/FCC-19-126A1.pdf

 

http://www.arrl.org/files/file/Technology/RFsafetyCommittee/28RFSafety.pdf

 

http://www.arrl.org/files/file/Technology/RFsafetyCommittee/RF+Exposure+and+You.pdf

 

The Amateur Service is no longer categorically excluded from certain aspects of the rules, as amended, and licensees can no longer avoid performing an exposure assessment simply because they are transmitting below a given power level.

 

“For most amateurs, the major difference is the removal of the categorical exclusion for amateur radio, which means that ham station owners must determine if they either qualify for an exemption or must perform a routine environmental evaluation,” said Greg Lapin, N9GL, chair of the ARRL RF Safety Committee and a member of the FCC Technological Advisory Council (TAC).

“Ham stations previously excluded from performing environmental evaluations will have until May 3, 2023, to perform these. After May 3, 2021, any new stations or those modified in a way that affects RF exposure must comply before being put into service,” Lapin said.

 

276
Huh? / Comb Stereo on Shortwave? No hair brush required.
« on: May 16, 2021, 1922 UTC »
I'm out, if style gels and moose are required. But, um, yeah... Another SWLing rip here. http://homepages.ihug.com.au/~daz2002/tech/CombStereo/
and   https://swling.com/blog/2021/05/guest-post-listening-to-comb-stereo-on-shortwave/

277
Amateur Radio / Listing of Eastern Hamfests 2021.
« on: May 13, 2021, 1826 UTC »
Courtesy of WB8YST for this info. All subject to possible change:
This is a 2021 COVID version – most confirmed by www “?”

 

?Canceled 2021 | Breeze Shooters Hamfest and Computer Show

 

Canceled 2021 | Manassas Hamfest & Maker Technology Show

 

07/10/2021 | Mansfield InterCity ARC Trunkfest

Location: Mansfield, Ohio -
Type: 2019 ARRL Hamfest
Sponsor: InterCity Amateur Radio Club

Website: : http://www.iarc.club

 

07/10/2021 | 37th Annual Firecracker Hamfest (facebook page seems iffy 2021)

Location: Salisbury, NC
Type: ARRL Hamfest
Sponsor: Rowan Amateur Radio Society
Website: http://www.rowanars.com/events

 

08/07/2021 | (Columbus Hamfest)

Location: Columbus, OH
Type: ARRL Hamfest - Aladdin Shrine Center
Sponsor: Voice of Aladdin ARC http://columbushamfest.com

 

???unknown 08-07-2021 Although not set yet, this should be the Huntington Hamfest

 
08/21&22/2021 | Alabama, Huntsville Hamfest
Location: Huntsville, AL      700 Monroe St SW, Huntsville, AL 35801

Type: ARRL Southeastern Division Convention
Sponsor: Huntsville Hamfest

Saturday Grand Prize,  Yaesu FTdx-10 Sunday Main Prize,  MUST be present to win.

Yaesu FT-991A additional Sunday Main Prize, donated by Shack-in-a-Box
Website: http://www.hamfest.org

 

08/27,28,29/2021 | West Virginia State Convention

Location: Flatwoods, WV - Days Inn
Type: ARRL Convention
Sponsor: WV State Radio Council
Website: http://qsl.net/wvsarc

 
08/28/2021 - Cincinnati Hamfest℠

Location: Owensville, OH
Type: ARRL Hamfest
Sponsor: Milford ARC
Website: http://CincinnatiHamfest.org

 

SUNDAY AUGUST 29, 2021 SKYVIEW RADIO SOCIETY SWAP N SHOP

Location: New Kensington, PA 2335 Turkey Ridge Road

Type: ARRL Convention

Sponsor: SKYVIEW RADIO SOCIETY

Website: http://www.skyviewradio.net/ham-fests/

 

09/03, 09/04 09/05, /2021 | Shelby HamFest

Location: Shelby, NC
Type: ARRL Convention
Sponsor: Shelby Amateur Radio Club
Website: http://shelbyhamfest.org

 
09/11/2021 - Greater Louisville Hamfest 2021 - 60th Anniversary

Location: Shepherdsville, KY
Type: ARRL Hamfest
Sponsor: Greater Louisville Hamfest Association
Website: http://LouisvilleHamfest.com
 
09/18/2021 - Richmond Hamfest

Location: Richmond, KY
Type: ARRL Hamfest
Sponsor: CKARS
Website: http://www.ckars.org/hamfest

 

09/12/2021 | Butler SwapFest

Location: Butler, PA
Type: ARRL Hamfest
Sponsor: Butler County Amateur Radio Association
Website: http://w3udx.org

 

 

Is this Canceled ?09/19/2021  | Coal Country ARC Hamfest 

Location: Madison, WV
Type: ARRL Hamfest
Sponsor: Coal Country Amateur Radio Club
Website: http://www.wv8ccc.org/?page_id=118

 

 

09/26/2021 | Cleveland Hamfest and Computer Show

Location: Berea, OH
Type: ARRL Hamfest
Sponsor: Hamfest Association of Cleveland
Website: http://www.hac.org

 

 

?10/09/2021  | Parkersburg - Wood County Hamfest 

Location: Wood County 4-H Campground
Type: ARRL Hamfest
Sponsor: Wood County Emergency Communications

Website: http://wc8ec.org

 

11/13-14/2021 | Fort Wayne Hamfest and Computer Expo

Location: Fort Wayne, IN (4000 Parnell Avenue)

Allen County War Memorial Coliseum and Exposition Center

Type: ARRL Convention

Sponsor: Allen County Amateur Radio Technical Society

Website: http://www.fortwaynehamfest.com/clubmain.htm

Went to this hamfest in 2019, I will highly consider going to more

 

279
Software / DRM for Android? Sounds more practical.
« on: May 09, 2021, 1959 UTC »
I don't have a smartphone, but I do have one of those cheap-ass Polaroid tablets that's Android driven. Hmmmmmm... Wonder if this would work with my RTL-SDR dongle?    https://swling.com/blog/2021/05/starwaves-drm-softradio-app-for-android-now-released/

281
Hmmmmmmmmmmm... Looks like Radio Jay Allen has a 'lil competition here. Neat read, fo' sure.      https://swling.com/blog/2021/05/gary-debocks-2021-ultralight-radio-shootout/

282
Equipment / Lab599 Discovery TX-500? Yeah, I want one!
« on: May 01, 2021, 1859 UTC »
Damn!!!! This looks like something that you'd might expect from Harris RF.     https://lab599.com/       And, of course, revisit where I've read about this,    https://swling.com/blog/2021/05/updates-return-of-the-lab599-discovery-tx-500-qrper-com-and-youtube/#comment-666430

283
Equipment / MFJ-209C for medium wave tests?
« on: April 30, 2021, 2311 UTC »
Anyone ever try this antenna analyzer to match-up Part #15 antennas and Carrier-Current Coupling?   https://www.mtcradio.com/mfj-209c-hf-vhf-220mhzswr-anlyzr-nolcddisp/       I like that the newer MFJ analyzers now measure that low. Just too bad that the original ones don't, like the MFJ-269C that I bought in 2005. I also like that the MFJ-209C does the 222MHz band, where as the MFJ-269C skips over it.

284
Huh... I did the pre-order for two of these years ago, then, what the hell happened? This kind of explains it:   http://www.hfcc.org/delivery/receivers.phtml      Surprised, that they don't try crowd funding. It's worked to get products out before.

285
Huh? / WION 1430 kHz in Ionia, Michigan will be testing tonight?
« on: April 25, 2021, 0524 UTC »
A bit late for this, but I didn't even get home until 1AM EST. Oooops. Still, interesting to read about. THANK YOU Josh for that info!!!!!

WION 1430 kHz in Ionia, Michigan will be testing tonight. The purpose is to evaluate the matching of their night directional array to their transmitter. This will help ensure better bandwidth for their C-QUAM AM Stereo signal.

The signal will alternate between the night time power of 330 watts and their daytime power level of 4.7 kW starting at 11PM EDT and midnight. (0300 UTC) The duration of the testing is unknown, but probably not more than a couple of hours. Daytime power levels will occur during the experimental period so after Midnight EDT (0400 UTC). All transmissions will occur using their nighttime antenna pattern:

WION AM Coverage Map

The station will mostly transmit their usual mix of music, but there will be some sweep tones designed to measure the transmitter performance and voice identifications.

You can compare your reception to their live web stream which is at:

i1430.com

See a more detailed listing of the testing tonight from their Chief Engineer Greg Buchwald below:

Greg BuchwaldWION 1430 kHz in Ionia, Michigan will be testing tonight. The purpose is to evaluate the matching of their night directional array to their transmitter. This will help ensure better bandwidth for their C-QUAM AM Stereo signal.

The signal will alternate between the night time power of 330 watts and their daytime power level of 4.7 kW starting at 11PM EDT and midnight. (0300 UTC) The duration of the testing is unknown, but probably not more than a couple of hours. Daytime power levels will occur during the experimental period so after Midnight EDT (0400 UTC). All transmissions will occur using their nighttime antenna pattern:

WION AM Coverage Map

The station will mostly transmit their usual mix of music, but there will be some sweep tones designed to measure the transmitter performance and voice identifications.

You can compare your reception to their live web stream which is at:

i1430.com

See a more detailed listing of the testing tonight from their Chief Engineer Greg Buchwald below:

Greg Buchwald
Author
Update: The updated AM stereo tuner is now online. Less top end distortion. (The Carver needs alignment and probably a few caps changed). Carver tuners, with out a modification on the stereo decoder PLL also have increasing distortion on the bottom end around 50/60Hz. We ran an hour of difficult test music and confirmed it is working properly. Tomorrow night we will take the AM down to measure the night directional array network and finalize the new matching of it to the transmitter for better bandwidth. The current night array is 10.5dB down at 1440khz as compared to the lower sideband at 1420khz (10khz modulation). The resultant quadrature distortion equates to well over 10%; dropping to 4% at 5khz. I expect this to be well under 1% when we are finished. Saturday night is prep work only. We need final measurements to lock in some capacitor and inductor values. I expect the installation of the network will occur in June. After an hour measurements, I will do some audio work. The music will not be your normal selections; it will all be highly separated and chosen to really test the system and allow us to evaluate some minor component changes in the optimod processor and the CRL AGC that precedes it. Comments will be welcomed. Specifically to the DX association that wants to do some listening tomorrow night: carrier will be up and down at 4.7kw and 300W. I can't give specific timing of each power level but expect us to begin sometime between 11pm and midnight edt. There will be few if any tones as we will actually sweep the carrier frequency for some of the tests. Once we have the required data, I will run some tones to confirm the transmitter performance. That will be followed by extended music sets while we perform the audio processing mods and updates. When we install the network at a later date, it will be much easier for us to state specific times of carrier power levels and specific modulation.

Expect lots of reports and discussions on the Facebook group devoted to AM Stereo:

[www.facebook.com]

Greg has discussed the possibility of a DX Test using Morse Code, sweep tones, etc. in June when the station will be doing additional testing during experimental hours. Stay tuned for that event.

The CPC is not coordinating reception reports for tonights events, but we would appreciate receiving .MP3, .WAV, or .MP4 video recordings of your receptions. Send those to:

les@highnoonfilm.com




Author
Update: The updated AM stereo tuner is now online. Less top end distortion. (The Carver needs alignment and probably a few caps changed). Carver tuners, with out a modification on the stereo decoder PLL also have increasing distortion on the bottom end around 50/60Hz. We ran an hour of difficult test music and confirmed it is working properly. Tomorrow night we will take the AM down to measure the night directional array network and finalize the new matching of it to the transmitter for better bandwidth. The current night array is 10.5dB down at 1440khz as compared to the lower sideband at 1420khz (10khz modulation). The resultant quadrature distortion equates to well over 10%; dropping to 4% at 5khz. I expect this to be well under 1% when we are finished. Saturday night is prep work only. We need final measurements to lock in some capacitor and inductor values. I expect the installation of the network will occur in June. After an hour measurements, I will do some audio work. The music will not be your normal selections; it will all be highly separated and chosen to really test the system and allow us to evaluate some minor component changes in the optimod processor and the CRL AGC that precedes it. Comments will be welcomed. Specifically to the DX association that wants to do some listening tomorrow night: carrier will be up and down at 4.7kw and 300W. I can't give specific timing of each power level but expect us to begin sometime between 11pm and midnight edt. There will be few if any tones as we will actually sweep the carrier frequency for some of the tests. Once we have the required data, I will run some tones to confirm the transmitter performance. That will be followed by extended music sets while we perform the audio processing mods and updates. When we install the network at a later date, it will be much easier for us to state specific times of carrier power levels and specific modulation.

Expect lots of reports and discussions on the Facebook group devoted to AM Stereo:

[www.facebook.com]

Greg has discussed the possibility of a DX Test using Morse Code, sweep tones, etc. in June when the station will be doing additional testing during experimental hours. Stay tuned for that event.

The CPC is not coordinating reception reports for tonights events, but we would appreciate receiving .MP3, .WAV, or .MP4 video recordings of your receptions. Send those to:

les@highnoonfilm.com

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