Re: K8NDB HiFer copied!
Wow, John that is an EXCELLENT explanation! And again, your point is quite valid.
I do recall reading about the case where amateur licensee N9OGL was transmitting on 13.556 Mhz. using a lot of power, and programming like a SW station. There is an extensive paper trail available online. The FCC's issue was not about using his amateur callsign on the 22m band (he wasn't), it was his exceeding the radiation limits of part 15.225, by perhaps several hundreds of watts on the 22m band.
This amateur call on 22m issue is pretty trivial. I had no idea it would become an issue. I am truly sorry for any trouble this may be causing anyone. Honestly, I do not intend to break any rules or create any pestilence in the part 15 community.
This has, however, become an interesting topic. By getting a clarification from a local field agent (who would ultimately be the one who inspects my beacon in the event of a complaint), I thought that was "horse's mouth" enough. Since this is becoming a concern to more than just me, I will email the district director and see if I can get a clarification. I'll let you know what I hear.
Thank you again for all of your help! I am the first to admit I do not know it all, receiving help from those more knowledgeable than me is much appreciated.
Marconi Day success on 500kHz
Posted by Mike Terry on May 02, 2009 at 00:15:16.
This year, on Marconi Day, a Marconi official station using Marconi equipment completed a radio contact that was similar to those Marconi himself achieved many years ago. During the late hours of Friday 24 April and the early hours of Saturday 25 April, GB4FPR was operated from the Fort Perch Rock Marine Radio Museum in the Wirral, UK. Using a newly obtained 501kHz to 504kHz NOV licence, they managed a transatlantic QSO on 502kHz with a station in St. John's, Newfoundland. The operators used Marconi marine equipment and Morse and received a 539 report from V01MRC. It was a crossband QSO with GB4FPR transmitting 1 watt ERP on 502kHz and receiving the Canadian station on 3566kHz.
Fort Perch Rock was built as a coastal defence battery during the Napoleonic period to protect the Port of Liverpool. It is open all year round and features museums, exhibitions and a tea-room.
RSGB News http://www.rsgb.org/news/0003.php)
FS Rycom 6021A SLM
Posted by Steve Ratzlaff AA7U on May 04, 2009 at 08:12:37.
Rycom 6021A selective levelmeter. $85 shipped lower 48. 0-1500 kHz, 2.5 kHz and 50 Hz BW in AM, LSB, USB modes. 6 digit LED display, 10 Hz tuning. 50/75/135/600 ohm binding posts input. (-70 dBm/72 microvolt MDS--will need preamp for weak signal reception.) Internal AC supply, can use internal battery but battery not supplied. Excellent condition, with cover. No manual. 12"W x 10"D x 8"H. Money Order or Paypal.
Re: FS Rycom 6021A SLM
Posted by rick ka2pbo on May 05, 2009 at 20:01:09.
In reply to FS Rycom 6021A SLM posted by Steve Ratzlaff AA7U on May 04, 2009
how does it perform on 1750 meters?
Rick KA2PBO "PBO"
Re: FS Rycom 6021A SLM
Posted by Steve AA7U on May 05, 2009 at 20:55:07.
In reply to Re: FS Rycom 6021A SLM posted by rick ka2pbo on May 05, 2009
Hi Rick, Hifer beacon EH
All SLMs I'm aware of have broadband untuned inputs, so would be equally sensitive across the full tuning range, including the 160-190kc range.
Thanks for the interest.
Posted by Sal, K1RGO on May 06, 2009 at 19:48:57.
Even though HF conditions have been poor, I am going to run EH. Maybe we can luck out. I'll run 24/7 for now 13,557.2 kHz, cw ~10wpm. I have been listening recently and haven't copied any Hifers yet. I'll keep trying... " XR " off until further notice - Attention JD
later, Sal..... K1RGO
Posted by Andy - XR on May 08, 2009 at 07:48:56.
Hey everyone:
Last year drought, this year almost non-stop storms. It's
getting difficult keeping " XR " on the air due to the storm
activity. I'm constantly either connecting or disconnecting
the station, It's time to give up for awhile, and let the WX
settle down some. I'll probably have it on sporadically when
things are settled. I'll post if I do. Should be getting my
parts in today, and I hope to get time to begin work on the
DC USB Transmitter.
73, until next time :::
Andy - KU4XR - EM75xr - Friendsville, TN. Re: Hifer beacon EH
LOWfer Beacon " XR " @ 184.322 KHz ( QRSS-60 )
Coordinates: N: 35* 43' 54" - W: 84* 3' 16"
http://www.myspace. com/beaconxr
Posted by Paul on May 08, 2009 at 09:17:08.
In reply to Hifer beacon EH posted by Sal, K1RGO on May 06, 2009
Thank you for putting it on the air 24/7! I am QRV.
New HiFer Beacon
Posted by Jeff on May 08, 2009 at 10:43:42.
Hello Everyone,
I have completed testing and placed a HiFer beacon on 13.562 MHz running approximately 4 Mw to a vertical antenna. The beacon identifier is NDB transmitted at 10 WPM. The beacon is located in Yuma, AZ and your signal reports are welcomed.
Thanks and 73,
Jeff K8NDB
Re: Hifer beacon EH
Posted by Sal, K1RGO on May 08, 2009 at 18:14:05.
In reply to Re: Hifer beacon EH posted by Paul on May 08, 2009
Hi Paul, Re: New HiFer Beacon
I hav'nt heard much in the hifer band lately propogation seems poor, just a few blips from Wal Mart or the like type tags. I listen usually mornings or late aftrnoon for a bit.
later....Sal
Posted by Sal, K1RGO on May 08, 2009 at 18:17:24.
In reply to New HiFer Beacon posted by Jeff on May 08, 2009
Hi Jeff, Re: New HiFer Beacon
I'l give a listen for NBD, usually mornings or late afternoon I get some time to tune around.
later...Sal
Posted by Jeff on May 08, 2009 at 18:35:38.
In reply to Re: New HiFer Beacon posted by Sal, K1RGO on May 08, 2009
Thank you Sal, I sure appreciate your listening for NDB.
Jeff
Re: K8NDB HiFer copied!
Posted by Paul on May 08, 2009 at 22:21:09.
In reply to Re: K8NDB HiFer copied! posted by John Davis on April 30, 2009
Hey John,
Per your suggestion, I will be changing the ID on my HiFer to simply 'FRC'.
Thank you very much for taking an interest in the project and especially for your expert advice!
WWVB-based precision frequency comparator
Posted by Max Carter on May 10, 2009 at 13:27:40.
Hello LWCA members!
If you're into precise frequency measurement and/or calibration, you might be interested in this application which uses a WWVB receiver as a precise frequency source:
http://www.maxmcarter.com/rubidium/index.php
Best regards,
Max
NDB GCT on new frequency
Posted by Barry on May 11, 2009 at 20:03:00.
NDB GCT 518 kHz Guthrie Center, Iowa is now on 516 kHz. Must have moved to let NAVTEX have 518 kHz.
-Barry
Re: strange or malfunctioning beacon?
Posted by Kurt on May 12, 2009 at 14:29:09.
In reply to strange or malfunctioning beacon? posted by dave sampson on December 23, 2008
Hi Al,
no I did not hear the signal, as I was not around.
Thank you for the information. SAQ Change of Transmission Date
Kurt
Posted by Alan Gale on May 15, 2009 at 05:26:11.
FLASH FLASH FLASH
The planned transmission with the Alexanderson alternator on 17.2 kHz at Grimeton Radio/SAQ at Tuesday 19 May is moved to Wednesday 20 May at the same times, 07:00 UTC and 07:30 UTC. Sorry for trouble.
Lars/SM6NM
Copying K6FRC
Posted by Jeff on May 15, 2009 at 09:57:20.
Readable K6FRC signal on 13.565 MHz into Yuma, AZ at 1657Z.
UN ID HiFer
Posted by Paul on May 16, 2009 at 07:54:49.
Was listening around 13.562 last night and heard a beacon that was IDing at about 25 WPM. The QSB was real strong, I would get 2 or 3 letters 5-9 and then fade to noise level. Could tell it was there, but not enough for positive ID.
I was able to clearly copy a couple of letter groups more than once. They were-
QJY
MJ
Also heard the number 7 sent in the string somewhere. The beacon was sending the same string over and over, but it was full of too much information, and just a bit too fast for me considering the strong QSB.
Can someone please help identify? Thank you in advance!
Paul
K6FRC HiFer
Posted by Jeff on May 16, 2009 at 10:43:38.
K6FRC HiFer is readable in Yuma, AZ on 13.565 MHz at 1644Z. No other HiFer beacons copied at this location.
73,
Jeff
Re: UN ID HiFer
Posted by John Davis on May 17, 2009 at 16:58:45.
In reply to UN ID HiFer posted by Paul on May 16, 2009
Probably wasn't a beacon. In the past, it was not uncommon to hear espionage "numbers stations" in this part of the spectrum, sending code groups (typically in clusters of five digits at a time) from who-knows-where to who-knows-whom. Re: UN ID HiFer
Posted by Paul on May 17, 2009 at 22:39:30.
In reply to Re: UN ID HiFer posted by John Davis on May 17, 2009
Thanks for the reply, John.
I am a former 'numbers station' junkie. I am very familiar with them. Spent my childhood losing sleep at night seeking them out and copying the code groups. Ahh.. Memories!
Anyway, this was no numbers station, it was a beacon. It kept sending the same message over and over, but the QSB was so bad, and the code was so fast, I just couldn't grab it.
Re: UN ID HiFer
Posted by jimvm on May 18, 2009 at 09:54:26.
In reply to Re: UN ID HiFer posted by Paul on May 17, 2009
I have been testing my HiFer beacon on 13.5658 MHz.
ID is 'ESA ESA ESA' 5 second dash, repeated. Using a
3 foot piece of wire for antenna clipped to the metal
garage door. No ground and using 12 V gel cell.
Beacon runs about 5 milliwatts output. A better antenna
is in the works. My QTH is San Jose, CA CM97BJ.
I wonder if you may have been confused hearing the QSB
signal.
73 jim Re: UN ID HiFer
Posted by Paul on May 18, 2009 at 10:27:11.
In reply to Re: UN ID HiFer posted by jimvm on May 18, 2009
Thanks for the reply, Jim.
Actually, I have been wanting to get in contact with you anyway to discuss beaconing! Please get in touch when possible. My info is good on QRZ and hamcall.net websites.
It wasn't ESA either. Maybe someone was just experimenting or something, I don't know. At this point- It wouldn't surprise me to learn it was a ham messing around.
My HiFer was on the air way before I ever let anyone know about it. This may be a similar case where someone put a beacon on the air and has yet to get the word out about it.
Speaking of.. My HiFer is on a mountain to your East. There is a lot of mountain between you and it, but not many air miles. Are you able to copy it?
" XR " D.C. USB XMTR Progress
Posted by Andy - XR on May 18, 2009 at 12:36:07.
Greetings all:
Moving at the incredible speed of the great slimey slug; minute
progress is being made. Unfortunately not on the actual Xmtr
itself. Still procurring parts, robbing PC boards and such, and
trying to determine ( from my own way of thinking ) what will be
the easiest, and effective circuit for each stage of the Xmtr.
My most exciting part of the project so far, came over the
weekend, when my wife managed to talk me into going to the local
flea market. I'm glad she did !! I bought a Toshiba Laptop for
$ 50.00, loaded with XP-PRO. It's a 366 MHz P-II with 194 Megs
of memory and a 7 GB HDD. I wasn't sure that system could handle
XP-PRO, but after hours of pushing it to the edge, it works fine.
I have loaded JASON, and MultiPSK to use for MFSK-16 & 8, and
Spetrum Lab to use for S/MT Hellschrieber, and DFCW. I figured
that Spec Lab would be the program that would kill the machine,
but surprisingly, this little critter has performed exceptionally.
The program that has facinated me the most is S/MT Hell. Once I
began to figure out how to work the DigiMode terminal ( Wheeew ),
I started to see what Hellschrieber can do. I started experimenting
with the program parameters, which are user adjustable; and I
have the program running the characters " X R in a 3 Hz vetical
bandwidth. It takes 10 minutes to Xmit the sequence at the baud
rate I'm trying, .025 sym/sec. I have no idea what WPM, or QRSS
speed that would be, but using a 5 second scroll rate in SpecLab
QRSS 10 mode, and a 70 Hz window; the image is pristine, with
no noise of course !! I can invision a great QRSS image
generator here. With digimode and the S/MT Hell 7/5 font, I can
set the vertical BW at 1 Hz, and a tone length of " Whatever ".
This will be the program that I will be experimenting with I'm
sure, quite alot.
As with any project; I just need to get that first component on
the board, and the adrenaline will take over from there.
73 everybody:
Andy - KU4XR - EM75xr - Friendsville, TN.
LOWfer Beacon " XR " @ 184.322 KHz ( QRSS-60 )
Coordinates: N: 35* 43' 54" - W: 84* 3' 16"
http://www.myspace.com/beaconxr
Re: K6FRC HiFer
Posted by jimvm on May 18, 2009 at 13:55:06.
In reply to K6FRC HiFer posted by Jeff on May 16, 2009
Paul, I went to your web site k6frc.com but could not find
your e-mail address.
jim vm Re: K6FRC HiFer
Posted by Paul on May 20, 2009 at 09:30:14.
In reply to Re: K6FRC HiFer posted by jimvm on May 18, 2009
Weird... It is gone. I need to check on that! Thank you for letting me know.
It's still on this one- www.paulshinn.us along with phone numbers, etc.
Copying HiFer Beacon
Posted by Jeff on May 20, 2009 at 11:29:22.
K6FRC HiFer (13.565 MHZ) is readable in Yuma, AZ with a RST of 519 at 1826Z.
73,
Jeff K8NDB
Copying K6FRC
Posted by Jeff on May 21, 2009 at 07:55:47.
Copying K6FRC beacon at 1345Z on 13.565 MHz. No other beacons heard in Yuma, AZ
Where Have All The HiFERS Gone?
Posted by Jeff on May 21, 2009 at 07:58:20.
I have been monitoring the HiFER band for weeks, night and day, and have not copied any beacons except the K6FRC beacon. Are any beacons still active on this band???
Jeff K8NDB
Re: Where Have All The HiFERS Gone?
Posted by John Andrews on May 21, 2009 at 08:47:24.
In reply to Where Have All The HiFERS Gone? posted by Jeff on May 21, 2009
Jeff,
A lot of us went away when propagation fell apart
a couple of years ago. There were very few reception reports at the time, and it just didn't seem worth it to continue. When the solar activity picks up, you'll probably see some of us back on.
John, W1TAG
Re: Where Have All The HiFERS Gone?
Posted by Sal, K1RGO on May 21, 2009 at 18:12:51.
In reply to Where Have All The HiFERS Gone? posted by Jeff on May 21, 2009
I guess propogation is the main reason for the lack of activity. I'm running EH on 13557.2 kHz 24/7 for now anyway and tuning around 22m with no hifer heard so far. Re: Where Have All The HiFERS Gone?
later ...Sal
Posted by Paul on May 21, 2009 at 22:44:59.
In reply to Where Have All The HiFERS Gone? posted by Jeff on May 21, 2009
If none of the beacon ops keep their beacon on, that is a sure way of losing people to monitor the band for activity.
Someone has to make the first move, may as well be the beacon ops, in my opinion.
Re: Where Have All The HiFERS Gone?
Posted by John Davis on May 22, 2009 at 07:14:31.
In reply to Re: Where Have All The HiFERS Gone? posted by Paul on May 21, 2009
Umm...do you have a HiFER on the air?
Re: Where Have All The HiFERS Gone?
Posted by Jeff on May 22, 2009 at 07:16:19.
In reply to Re: Where Have All The HiFERS Gone? posted by John Andrews on May 21, 2009
John,
That makes good sense to me! Hopefully cycle 24 will get underway soon and the HiFER interest will return. In the meantime, I will continue to monitor the band and be happy with any beacons that I may find. Thanks!
73,
Jeff K8NDB Re: Where Have All The HiFERS Gone?
Posted by John Davis on May 22, 2009 at 07:27:45.
In reply to Re: Where Have All The HiFERS Gone? posted by Jeff on May 22, 2009
Are you monitoring for any mode other than normal-speed CW? Most of the activity on this band has been QRSS3 or other modes best copied with a waterfall display. Re: Where Have All The HiFERS Gone?
Posted by Jeff on May 22, 2009 at 08:45:23.
In reply to Re: Where Have All The HiFERS Gone? posted by John Davis on May 22, 2009
John,
No! I have only listened for the CW HiFERs. I will start using ARGO and see if any QRSS beacons pop up. Thank you for the suggestion.
73,
Jeff K8NDB
Thank You!
Posted by Jeff on May 22, 2009 at 09:13:55.
Thank You! I appreciate all of the information and suggestions provided by all of the good folks that answered my earlier post "Where Have All the HiFERs Gone".
Good copy on the K6FRC HiFER on 13.565 MHz today at 1936Z. There must be some propagation on 22 meters because I copy this beacon daily. The distance between us is 516 miles. Single hop skip to the north has always been good during low sunspot cycles at my QTH. Guys, turn on those beacons!
73,
Jeff K8NDB
Re: Where Have All The HiFERS Gone?
Posted by Paul on May 22, 2009 at 10:49:16.
In reply to Re: Where Have All The HiFERS Gone? posted by John Davis on May 22, 2009
YES!! I do. It has been on the air 24/7 since the beginning of the year!
Jeff copies it frequently and has reported it here.
Paul Re: Where Have All The HiFERS Gone?
K6FRC
Posted by John Davis on May 22, 2009 at 21:09:20.
In reply to Re: Where Have All The HiFERS Gone? posted by Paul on May 22, 2009
Good deal. With only the single name and no e-mail or call sign in the earlier post, the connection with your beacon didn't spring to mind immediately. Best of luck with it during the summer months.
Re: Where Have All The HiFERS Gone?
Posted by Paul on May 22, 2009 at 23:30:30.
In reply to Re: Where Have All The HiFERS Gone? posted by John Davis on May 22, 2009
That's OK, it was funny! I got a good laugh out of being able to answer your question like that. Tell you what, for ID purposes, here you go- www.k6frc.com A few of my beacons are listed there.
Thanks a lot for the kind wishes, John!
Ncie Copy on K6FRC HiFER, No Other HiFERS Copied!
Posted by K8NDB on May 23, 2009 at 18:03:44.
05/23/09
1252Z
Copying K6FRC HiFER on 13.565 MHz with RST 529. No other HiFER beacons copied at this QTH.
73,
Jeff K8NDB Re: Ncie Copy on K6FRC HiFER, No Other HiFERS Copied!
NDB HiFER 13.562 MHz
Posted by John Andrews, W1TAG on May 23, 2009 at 18:30:52.
In reply to Ncie Copy on K6FRC HiFER, No Other HiFERS Copied! posted by K8NDB on May 23, 2009
Jeff,
I was copying it weakly tonight between 2300 and 2330 UTC in Raymond, ME (FN43sv). Unfortunately, the fading was fast enough that I didn't get a complete call sign. All of the right letters were there at various times, though. Will check again tomorrow.
John Andrews, W1TAG/1
Mickey Mantle ???
Posted by Andy - XR on May 23, 2009 at 22:57:38.
Should that be at the top of the screen ??? It's been there for about 4 days. If it's an advertisement to help lower hosting costs, it's certainly no bother, It just has my curiousity up. 73" Andy - KU4XR
Re: Mickey Mantle ???
Posted by Webmaster on May 24, 2009 at 03:23:39.
In reply to Mickey Mantle ??? posted by Andy - XR on May 23, 2009
Yes, it's an advertisement, not unlike the Amazon banners or text ads that appear here a few times per year.
This site works on behalf of the club but is not supported by member dues in any way, so every little bit helps. And this is baseball season, after all.
:-)
Long Shots
Posted by Shawn Axelrod on May 24, 2009 at 10:31:07.
OK I know these are long shots at best but I was going through my old Logbooks and found some old UNID's. Some of these go back into the late 1990's.
Any help would be greatly appreciated:
1629 ZE or ZT
1650 DOB
They were logged from Winnipeg MB Canada
Thanks for any help
Shawn
Re: Mickey Mantle ???
Posted by OAndy - XR on May 24, 2009 at 11:57:44.
In reply to Re: Mickey Mantle ??? posted by Webmaster on May 24, 2009
OK; that explains that then. What if members/anyone wanted to donate a few dollars to help with the hosting costs ??
Can they do that ?? and how ??
Andy - KU4XR
Re: Mickey Mantle ???
Posted by Paul on May 24, 2009 at 13:53:20.
In reply to Re: Mickey Mantle ??? posted by OAndy - XR on May 24, 2009
If so, I'm in.
TIS Radio Stations
Posted by Glenn on May 26, 2009 at 17:05:13.
Does anyone have a link to a site that lists all the Traveler Information
Stations ( TIS + HAR ) that operate on 530 Khz and 1610 Khz?
Thank you,
Glenn
Re: TIS Radio Stations
Posted by John Davis on May 27, 2009 at 01:14:39.
In reply to TIS Radio Stations posted by Glenn on May 26, 2009
The problem with "free" information on the Internet is often that it's priced very close to what it's worth. At one time, this was the most accessed reference on TIS/HAR stations:
http://www.angelfire.com/sc/scannerpost/tisgov.html
However, it hasn't been updated in over 10 years. Since mediumwave licensed stations aren't really in the LWCA's purview, I would recommend contacting the National Radio Club or the IRCA to see what they might have on the subject. Re: Ncie Copy on K6FRC HiFER, No Other HiFERS Copied!
Posted by Jeff on May 27, 2009 at 04:47:19.
In reply to Re: Ncie Copy on K6FRC HiFER, No Other HiFERS Copied! posted by John Andrews, W1TAG on May 23, 2009
John,
Thanks for the signal report on the K6FRC beacon. Amazing what 4.8 Mw can do when conditions are good. Keep up the good work!
73,
Jeff K8NDB (HiFER NDB 13.562 MHz)
Re: EXP-1750a Longwave Transceiver
Posted by Andy K. on May 27, 2009 at 07:44:03.
In reply to Re: EXP-1750a Longwave Transceiver posted by Paul Jorgenson KE7HR on February 23, 2009
I have an EXP-1750 with manual. Re: TIS Radio Stations
I also had some Metal Cabinets made to house the board.
I regret I haven't gotten the rig on the air yet.
It's been in a box for a move and you know the rest of the story!
I have about 5 more Cases surplus, economies of set up made extras a necessity. Let me know if anyone would like to share in them.
Andy K.
Posted by Glenn on May 27, 2009 at 10:03:57.
In reply to Re: TIS Radio Stations posted by John Davis on May 27, 2009
I found other ones that are more current but found holes in them also. I guess the best thing would be to do is do a search on the FCC website for the licenses that are current and go from there. I heard one yesterday thats about 25 miles away in Wisconsin. The TX is on always with a repeating message and the license ID is no longer valid but the state of Wisconsin did apply and get a totally new license for the site. The only thing wrong is the voice ID has the expired license on the message.
Glenn
Hifer NC
Posted by John Andrews, W1TAG on May 27, 2009 at 11:11:21.
While up in Maine this past weekend, I heard/saw a dead carrier just above 13555.5 kHz. The fading and times of the day suggested it might be W4DEX's old NC hifer beacon from North Carolina. But it lacked the original FSK square-wave keying. I emailed Dex, and sure enough, a 555 timer was loose in its socket. He pushed on it, and it started keying again.
For those who wish to look, try setting your receiver to 13555.55 kHz and use an Argo or similar 3-second screen. If it's copyable, you should get a "square wave" somewhere on the screen.
John, W1TAG
Re: EXP-1750a Longwave Transceiver
Posted by Paul Jorgenson KE7HR on May 27, 2009 at 13:50:26.
In reply to Re: EXP-1750a Longwave Transceiver posted by Paul Jorgenson KE7HR on February 23, 2009
No email address for Dave, but his latest web page incarnation is at Re: EXP-1750a Longwave Transceiver
http://www.75a-4.com/
with a snail mail address.
Posted by Paul Jorgenson KE7HR on May 27, 2009 at 13:55:36.
In reply to Re: EXP-1750a Longwave Transceiver posted by Paul Jorgenson KE7HR on May 27, 2009
Reading newer posts, Dave Curry has left a post with his email:
davecurry@charter.net
So, there you go!
Re: Hifer NC
Posted by Sal, K1RGO on May 27, 2009 at 16:55:29.
In reply to Hifer NC posted by John Andrews, W1TAG on May 27, 2009
Hi John, Re: Hifer NC
I'll give ARGO a try, I did hear a carrier around that frequency , so It might be NC ....meanwhile EH is on 24/7 on 13557.2 MHz. Maybe propagation will finally improve.
later....Sal
Posted by John Davis on May 27, 2009 at 17:36:50.
In reply to Re: Hifer NC posted by Sal, K1RGO on May 27, 2009
It's good to know what happened to NC. That was one of the benchmark HiFER signals for ages...and apparently still is. :)
Super Narrow-band communication on 1750 meters
Posted by Doug Buhrman on May 28, 2009 at 20:55:26.
Back in the early 90's I remember reading an article on narrow-band communications on 1750 meters. I don't remember the name of the magazine. What ever became of that project? Are there still people experimenting with this mode? Are there updates to this type of communication using DSP chips or soundcards with DSP software?
Re: Super Narrow-band communication on 1750 meters
Posted by John Andrews, W1TAG on May 29, 2009 at 04:03:12.
In reply to Super Narrow-band communication on 1750 meters posted by Doug Buhrman on May 28, 2009
Doug,
Dedicated DSP chip projects have pretty much been set aside, but there are various sound card based modes in use at 1750 ("Part 15") and 2200 meters (Experimental or Amateur outside of the U.S.). Some possibilities may be found at:
http://www.w1tag.com/Modes.htm
The goal is less to occupy a narrow bandwidth than to improve the signal to noise ratio, allowing copy of weaker signals. Of course, the two things are related. When you reduce CW speed so that each dot takes 30 seconds, a typical DSP-generated screen on the receiving end is only 6 Hz wide. And you can fit many signals into that slice:
http://www.w1tag.com/files/185.3_12-11.jpg
John Andrews, W1TAG
HiFER Beacons into West Georgia
Posted by Jim W4JBM on May 29, 2009 at 18:46:26.
Have EH coming in on 13557.10 kHz and HI coming in on 13558.01 kHz. Both are decent with audible copy possible. (Have recordings if anyone is interested.)
Also seeing a signal around 12557.25 kHz. It has a "whoop" tone to it and the Spectrogram shows it's a rising note that levels off. Seems to be about a quarter second of rising and then maybe a total of a second in length. But it's very weak and not repeated very often. Any ideas on that?
Location: Bowdon Junction, GA (33.6581,-85.1249 EM73)
Receiver: Yaesu FT-857D
Antenna: Ground level Butternut Vertical
73 de Re: HiFER Beacons into West Georgia
Jim W4JBM
Posted by Sal,K1RGO on May 29, 2009 at 19:10:11.
In reply to HiFER Beacons into West Georgia posted by Jim W4JBM on May 29, 2009
Hi Jim, Re: HiFER Beacons into West Georgia
I'm glad to hear that the propagaton is picking up again. If you have the recordings in jpeg or wav , just email me (see above). HI is about 20 miles west of me. I have not heard his signal so far this year and sometimes there is a short skip or scatter and I can copy him. At what time/ date did you copy EH and HI?
thanx ....later, Sal
Posted by Jim W4JBM on May 30, 2009 at 00:19:07.
In reply to Re: HiFER Beacons into West Georgia posted by Sal,K1RGO on May 29, 2009
I was listening to them around the time I posted, 0120z 30May2009. I'll drop you copies of the recordings.
73, Re: Super Narrow-band communication on 1750 meters
Jim W4JBM
Posted by Doug Buhrman on May 30, 2009 at 03:08:37.
In reply to Re: Super Narrow-band communication on 1750 meters posted by John Andrews, W1TAG on May 29, 2009
Thanks for the info John. I will look into the soundcard software.
NC into West Georgia
Posted by Jim W4JBM on May 30, 2009 at 10:34:12.
It didn't last long, but I caught NC on 13555.52 kHz at 1725z. Got an Argo screen of it.
Considering I'd never caught any the HiFER beacons before and now I've caught three in two days, maybe things are turning around.
Location: Bowdon Junction, GA (33.6581,-85.1249 EM73)
Receiver: Yaesu FT-857D
Antenna: Ground level Butternut Vertical
73 de K6HFC Hifer beacon
Jim W4JBM
Posted by Mark on May 31, 2009 at 09:30:05.
Am copying the K6HFC Hifer beacon on 13565 this morning. Its doing real well at times, even gets just as strong as the pulsing OTHR? Whatever it is, it is strong again today and makes copying Hifers almost impossible!
73, Mark, Ku7z Re: K6HFC Hifer beacon
Northern Ut (NUT)
Posted by Paul on May 31, 2009 at 11:02:05.
In reply to K6HFC Hifer beacon posted by Mark on May 31, 2009
Could you have meant the 'K6FRC' HiFer beacon?
Would be happy to QSL if you confirm the ID.
Thanks,
Paul
potrzebie
