Top band DX-ing is real ham radio challenge. 160m is also referred as the "Gentleman's band"...
160 meters - DX-ing on the Edge...

Listopad 2006

S9SS via N4JR

12. listopadu 2006 v 1:27 | Petr, OK1RP |  QSL info

HOLLYWOOD AL 35752-6731

Charles, S9SS notes :

My logs for A22AA, S92SS, SV0LM and A25/KY4P exist only on paper. Many are hand written so they cannot be converted to text by scanning. Jerry, N4JR has only the S9SS log. QSL's for my other call signs should not be sent to Jerry. The QSL route for all the call signs I have used except S9SS is direct to me. Mail sent to the fellowing address is forwarded to me in Sao Tome: Charles Lewis,2270 Libreville Place,Dulles, VA, 20189-2270. For those in the USA, an S.A.S.E. with domestic US postage is appreciated. For those outside the USA, an S.A.E. with an IRC or sufficient postage for air mail from the USA is desireable. An alternete (but less reliable) address is Charles Lewis, CP 522, Sao Tome, DRSTP, West Africa (VIA PORTUGAL). I have stopped recommending that address, because it now costs me more than $1.00 to mail to addresses beyond Europe using the local mail. I also respond to QSL's sent to the call sign KY4P via the ARRL Bureau, though I prefer direct.

S9SS on 160m

12. listopadu 2006 v 1:10 | Petr, OK1RP |  Band reports
band is very noisy currently but even with small K9FD receiving loop w/o pre-amp is readable Charles, S9SS on 1816.16 on my K2 right now 559. Pile-up is not so strong as untill now it was not announced on DX-Summit cluster. Condition sounds well for EU as working DL, UA, G, IS etc.
More information You can find on for example or even log of S9YL and S9SS on site.
Be note that its last TOP band season for Charles as his business finishing in Feb 07!
73, Petr OK1RP

CQ 160M CW Contest by John, ON4UN

11. listopadu 2006 v 1:12 | Petr, OK1RP |  Operation topics
Hi all,
there is interesting comments to CQ 160M CW Contest by John, ON4UN. It seems to be still interesting althought its a bit an historical article I guess...

1996 CQ 160M CW Contest

ON4UN, Single Operator, High Power

By John Devoldere

Summary Sheet

                 CQ WORLD WIDE 160M CONTEST -- 1996 
       Call: ON4UN                    Country:  Belgium 
       Mode: CW                       Category: Single Operator 
                                                High Power 
   BAND   QSOs    Points   States    Countries  
   160    1275     8995      47          79 
               Final Score 1,133,370 Points   

The Story

The contest starts as usual with trying to work a JA. In these years of low sunspot activity this is much easier than in the "high" years. After having worked the multiplier, I start cleaning up the European stations. No point in wasting time trying to work JA's. A DX is worth only two European stations, and you can work them much faster.
The XV7 station is said to be active in the contest (from Hanoi), but he has only one frequency, 1827. I still need him for a new country, but don't think we will hear him with all the contest QRM. Anyhow it's S9 plus QRM all around 1827...
The conditions seem to be "fair" to the USA, but pile-ups are moderate. Around 03:00z the Mid-West starts coming in and from then on the skip lengthens to Texas, New Mexico etc. At 05:22 Mike, N7ML is the first W6/7 worked, followed one minute later by N6DX, and a few minutes later by Bob, W7LR also in MT. All were really loud! No more West Coast was worked, and the only multiplier before sunrise was 6D2J. At 07:50 I am off to bed for some sleep.
At 15:30z (45 minutes before sunset) I am back. It's working European stations until my first DX at 19:00z (EX8W) followed shortly later by a good signal from VK2BJ. Some of the rarer Europeans are worked (Z3, LX, ZA, GU, GD). At 19:30z the band is wide open to Japan (2 and a half hours before their sunrise). I work a string.
I worked Mark, ON4WW from his home QTH on Friday evening. He was leaving for 9X on Saturday early morning, and gave me a sked for Saturday evening. At 21.00z sharp 9X4WW calls me for a nice multiplier. In the next half hour I work two other African stations: 6W6JX (very strong!) and 7X2VZK. Mark, 5N0MVE was the only other African station worked.
I run across a huge pile up for 1A0KM. Wonder if this is the "real" one? Anyhow, hordes of Europeans must have worked him.
The first W is worked at 22:40 (W2VO). The band starts opening really well to the states at 23:30z the mid-West starts coming in at 00:30, and KS (W0CM), AR (K5GO) are added to the multiplier list. At 01:08 N6SS in Arizona calls me with an excellent signal. This is early! The band remains excellent to the US all through the night until sunrise, but never really stretches all the way to the West Coast. The only W6 worked is Glen, K6NA, and KX7VG in Utah. In total two W6's, and four genuine W7's (two in MT, one in AZ and one in UT) were worked.
My last multiplier was PT7BZ at 07:30z, just on my sunrise.
Being single op non-assisted, I am forced to switch between working pile-up and do some search and pound across the band looking for pile-ups where the rare multipliers are. While doing so, I call every station (DX or European) that's not yet in my log. One very amazing thing happened to me in this contest. On at least 20 (TWENTY) occasions, the station I called came back with "wkd B4", while this clearly was not the case. This can happen once or twice in a contest, but not 20 times! With some stations it took a bit of convincing to give me a "real" QSO. This happened ONLY with European stations. I wonder what happened? Did the computer let me down? Maybe it did not log some contacts? After the contests I listened to the entire recorded contest, and ALL QSO's were in the log. Maybe someone wanted to harm me and worked a bunch of European stations with my call while I was running a pile-up somewhere? Who will tell?
I have only one funny story: UR5KDX. kept telling me to move out of the DX-window ... As I did not react, he started jamming me. Hell, I can understand the purpose of the DX window (it's great), but if the DX (that's we ??) must also stay out of there, who is going to work who ??? ... Maybe we have to explain the poor man what's DX for the US organisers of the contest.
After the first night, ands in view of the local "factory generated" QRM, I was convinced this year's results would not be as good as last year's. But the much improved conditions to the US on the second night soon made it clear that maybe I would break the 1 Mi point barrier after all. And yes, almost 3 hours before sunrise we went through the 1 Mi point barrier. I ended with approx. 150 more QSO's than last year (1275 QSO's) and with 1.13 Mi points, which is nearly 20 % better than last year's score. Last year we worked 340 US + Canadian stations, this year 460! I nevertheless worked fewer multipliers (80 countries and 47 states, vs. 82/47 in 1995). In the US, I made all W1,2,3,4,5,6,8 and 9 states, missed N and S.D. in the W0 district, and missed all but AZ, MT and UT in the 7th district. From Canada we worked the easterly provinces (VO1 through VE3).
No sign of the XV7 station, nor from 9V1XQ who's been on 160 in the week prior to the contest. From Europe I missed GJ, HB0, 3A, but worked a number of the rarer ones: EA6, HV, OH0, C3 etc. No EA8, nor CU! Besides the 460 US + Canadian stations I worked from N/S America: 6D2X, 8P9DX(very strong but deaf like hell, half of Europe called him, and I had to call for at least 20 minutes before getting through!), JG3KIV/6Y5, PJ9Z, PT7BZ, PY0FF, TO5T (strong), TI1C (Strong as always), YV1OB (who else), P40WA (deaf like 8P9DX), P40I (got mMike on my first call!) and 9A3A/4U.
Without the chemical plant QRM I am sure I would have been able to dig into the proverbial "third layer" of North American stations which would undoubtedly have given me a few more W7 stations. Maybe next year we'll have 160 m contest without handicaps?
John, ON4UN

The 4SQR for 160m a'la K8UR by OK1RD

10. listopadu 2006 v 17:24 | Petr, OK1RP |  Antennas
one of the famous antennas system is made by Jarda, OK1RD. Who listened his operation must confirm that it works fabulous. Don't worry about the pictures of large antennas on big lot > be sure that Jarda already spent huge time to build and properly tune.
Let's go to make tour with him as follows:
Dear Topbanders,
as having got more than several requests for information about my full size
dipoles 4SQR for 160m a'la K8UR which photos have been found by enquiries on
my pages in connection with my previous comments on Topband
Digest sides, let me shortly answer them this way.

Somebody maybe know that I operate instead of home QTH a remote controlled
QTH too on low bands mainly. I found soon that I need more de-excitation
power there on remote site to balance excellent reception conditions from
Beverages field. A shunt fed tower produced power on not enough level as
needed. Increasing power by PA output was not efficient too because mains
coming there to telecommunication cot from near-by village offers just 16kVA
input. So being pushed on the idea to reach 300 DXCC countries on the
Topband as soon as possible / now with 4SQR help 295cfmd and 298 wrkd / the
only way was to build directional antenna system for 160m band. Because each
of us has a different conditions on Topband, having a 45m high tower there I
quickly decided that dipoles 4SQR would be the best solution for my case. I
heightened tower up to 60m of height built dipoles and phased them by
phasing system a'la Comtek on 90deg. phasing shift. The system worked but
nothing much so I found in popular ON4UN's Low bands Dxing ( thanks John )
better phasing system called cross-fire with optimised
phasing. I set up this system accurately using Mini VNA on needed phasing
terms. I found unbelievable change, first of all the system started to
listen almost as well as over 400m Beverages and statistically measured F/B
suddenly was 26dB and F/S much better close to 30dB ( maybe against physics
). I don't want to bore you but if somebody has chance to build this system,
go ahead soon because it is worth to build one for sure.

A few practice notes to avoid research work I had to pass:

1/ the dipoles should be trimmed separately always one by one up to support
2/ tune each dipole on 1790 kHz frequency exactly identical
3/ phasing leads ( coax ) 1/4 WL on asking operation frequency - do not
forget use for both measuring proper coax lenght
4/ each coax feeder must have on the dipole end a good balun; in my case a
big Amidons cores laced on coax to reach inductance over
100microH on 160m and further you should take care about connection into the
dipole centre
5/ set up phasing box exactly into correct magnitude phases, the VNA or
similar analyser is must
6/ matching from phasing box to 50 Ohm coax feeder is recommended
If kept the notes above one would be recompensated by excellent directional
antenna for Topband I am sure. In conjunction with proper Beverages
listening system I would not see better low bands tool except 9 circle, I
guess ( next year maybe Hi ).

Good luck to all courageous best Dxing and
73 Jarda, OK1RD

Using a 4-square Vertical Phased Array to improve Your 160m signal !

10. listopadu 2006 v 15:50 | Petr, OK1RP |  Antennas

Using a 4 square Vertical Phased Array to improve your 160 meter signal - without a Yagi!

Tom Frenaye, K1KI
Below is the handout I used for my 4 square presentation at the June 1st YCCC meeting.... 73 Tom
What's the history?
The 4 square was originally developed by W1FC and W1CF and described in QST. A commercial version of the hybrid coupler was marketed by ComTek Systems, owned by K8UR, and then sold a few years ago to KF4HK (x-KZ5JM). DX Engineering on the west coast sells a similar product.
Who else has 4-squares?
KY1H/80 W3LPL/160 AA6TT/80+160 AA0RS/160 Many others. WW2Y has a four-element rectangular array (also in Antenna Book), with slightly more gain in two directions.
Cushcraft 40-2CD 2L 40 5.5 dBd gain, 20 dB max F/B, 24' turning radius, list $625.95, approx $410 street, should be mounted at 60' or higher. Tribanders and monobanders such as the HyGain 204BA, 155BA or TH6DXX are all marketed saying 20-25 dB F/B
From ARRL Antenna Book:
  1. 5.5 dB forward gain over a single similar element, for any value of loss resistence
  2. 3 dB or greater forward gain over a 90 degree angle
  3. 20 dB or better F/B ratio maintained over a 130 degree angle
  4. symmetry that allows directional switching in 90 degree increments
ComTek claims 6.0 dB gain and F/B of >25 dB.
How much space is needed?
1/4 wavelength (33' on 40, 66' on 80, 132' on 160)
1/4 wavelength vertical, spacing and radials
the vertical can be loaded, or a T shape
use 1/4 wavelength of RG-11 foam to feed it (246/F x VF)
W3LPL suggests a 4-square should be 1/2 wavelength away from other towers
Total area needed for 40m, 105'x105', for 80m, 200'x200', and for 160m, 400'x400'
How carefully does it have to be constructed?
Most people suggested that I make each vertical/GP exactly the same. I didn't, on 160m one is full length, base only 50' from tower, others are in a tilted-T shape, base 100' from tower, vertical 90' with 45' top, tilted in towards the tower.
How many radials?
W4BZ did a presentation at Dayton that basically said 4 raised radials equal 120 buried radials. Mine have 4-8 raised radials (raised 6-8', tied to trees, etc).
How do you tune it up?
Build each ground plane so you can easily connect 50 ohm coax to it. Test each one individually, making sure to short out each of the other three while testing to avoid mutual coupling. Trim each vertical to the desired frequency. Connect the RG-11 coax to the matching box.
If each antenna is constructed and matched well, when you transmit through the 4-square there will be little left over power to be shunted towards the dummy load. The SWR should appear pretty flat across the band (under 1.5:1). If there is a matching problem it results in extra power being shunted towards the dummy load. Because the match looks good at the transmitter you can operate away from the matching frequency and lots of power will end up in the dummy load. I fried an MFJ 300w dummy load early on....
Put an SWR bridge between the matching box and the dummy load. Where the SWR is lowest is your matching frequency. Some people actually run a piece of coax back into the shack so the dummy load is inside and the amount of power being wasted can be measured.
How much does it cost?
The biggest cost is the matching box (hybrid coupler), if you have the time and knowledge to build one, you should. Comtek sells them for about $320. You'll have to add about $100 worth of RG-11 for an 80-meter version, a 3-wire control cable back to the shack, plus the wire and rope needed for the verticals themselves plus radials. Total? about $500. Compare that to the price for an 80m Yagi, the necessary rotator and tower of reasonable height, and the stressful New England weather. It isn't even a close choice!
How well does it work?
In last February's ARRL CW DX Contest, the K1KI multi-multi beat W3LPL badly on 160m (250 to 150 QSOs) and beat their 2L 80m quad at 200' (barely) on 80m. The front to back ratio is as advertised - 20 dB or more, sometimes 30! The 1100' Beverage towards Europe is still usually the better receiving antenna, though the 4-square is as good some of the time. Having the capability to instantly switch to in a different direction is great, no time wasted while a rotator turns.
References: 4-square phased vertical arrays
"A Switchable Four Element 80-Meter Phased Array", by Fred Collins, W1HKK/W1CF, March 1965 QST, page 48. (N6BV: though the feed system was less than totally satisfactory, the system provided gain and some pattern)
"360 Degree Steerable Vertical Phased Arrays", by Fred Collins, W1CF(and others), April 1977 QST. (N6BV: this used the now-discredited Wilkinson divider system, see pp 8-12 to 8-13 of the ARRL Antenna Book, 17th edition [current]).
"Phase Adjustment Techniques for a 4-Element Square Phased Vertical Array", by Lahlum, March 1991 QST, page 39.
"The Square-Four Receiving Array", by Gary Nichols, KD9SV, John Goller, K9UWA, and Roy Lewallen, W7EL, ARRL Antenna Compendium, Volume 3 (1992), published by ARRL.
The ARRL Antenna Book, edited by R Dean Straw, N6BV, 17th edition, pages 8-25 to 8-30, published by ARRL. Theory and construction details.
Low-Band Dxing, by John Devoldere, ON4UN, pages 11-35 to 11-48 and 11-55 to 11-63, plus optional software with a tutorial and engineering detail, second edition, published by ARRL. Good detail for building your own matching and switching system.
73, Tom, K1KI

Double-L Antennas for 80/160m

10. listopadu 2006 v 15:45 | Petr, OK1RP |  Antennas
as I am one of the TOP band operators who have small pocket garden in fixed QTH for their 160m band antennas I am looking still for better and better solution.
One of the favourable antenna was Double-L by Don, K2KQ as follows:

Double-L Antenna For 80/160

Don Toman, K2KQ
A popular misconception about vertical antennas for the low bands is that they must have elaborate ground systems. Here's a vertical antenna for 80 and 160, fed with a single feed line that is simple, effective, and requires no ground system. You won't beat the 4-squares, but you will hold your own against a grounded quarter wave with ridiculous amounts of copper in the ground.
Rather than get into the theory of why this antenna works, I will simply describe it here and let results speak for themselves. If there's a demand, I'll do a follow-up article on the relevant theory.
The antenna is a center-fed half-wave vertical with about 70 feet of vertical length with the remainder of the top and bottom of the antenna bent horizontal and parallel to each other. The antenna looks like a squared-off letter "C" fed in the middle of the vertical part.
Thus, the 160-meter antenna is a 270-foot dipole fed in the center with the bottom antenna wire bent parallel to the ground about 10 feet off the ground and the top at 80 feet off the ground. The horizontal parts are 100 feet long and parallel to each other.
The 80-meter antenna is a 130-foot dipole, fed in the center with 70 feet vertical and 30 feet horizontal 10 feet off the ground and 80 feet off the ground.
Think of it as an inverted L fed against an L. The two Ls are balanced with respect to each other and because the currents in the horizontal sections are out of phase, the antenna has a minimum of horizontal radiation.
The 80 meter and 160 meter antennas are separate, fed from a common coaxial feed line.
In my case, the 80-meter and 160-meter horizontal sections are about 30 degrees apart. The 160 horizontal wires run east while the 80 wires run east-northeast.
On both bands, the bulk of the current flows symmetrically in the center of the antenna, with the current peak about 45 feet off the ground at the feed point. On 80, the current loop peak is about 0.16 wavelengths above ground and on 160, the current loop is about 0.08 wavelength above ground.
The accompanying figure illustrates the antenna.
You can adjust the resonance of the antenna by adjusting the lengths of lower horizontal sections. The small asymmetry doesn't bother anything. The center impedance of mine at resonance is very close to 50 ohms on 160 and close to 70 ohms on 80. The 160 antenna presents high impedance at 80 meters and the 80-meter antenna looks like a parallel capacitor across the 50-ohm 160 antenna. The 160 antenna covers 1800-1860 with under 2:1 SWR. I needed to take about 2 feet off the horizontal section to get mine resonant at 1830. If 80-meter current flows in the 160 antenna, it tends to flatten the current loop in the vertical section.
The 80 meter antenna is resonant at 3750 with the 130-foot length shown. The VSWR is under 2:1 over the DX part of the 'phone band. It needs to have some length added to cover the CW portion. I haven't tried to bring it to resonance in the CW band, but have chosen to feed it through a tuner.
I originally had this antenna hung from trees. This year I put up an 80-foot Rohn-25G with three sets of guys. I hung the wires from ropes attached to the tower so they are separated from it by about 3 feet. The coaxial feed line comes off perpendicular to the antenna and is then taped to the tower. The center conductor goes to the top and the shield goes to the lower part. Before the coax turns on to the tower, I've wrapped some 30 feet of it into a coil. I expected to see a lot of interaction, but the tower and guys seem well off resonance at the operating frequencies and I didn't see any to worry about.
The first QSO on 80 was VK6LK, long path on SSB at sunset on September 12. I've worked a few ZSs, HF0POL, LU, and the usual Europeans. On 160, the first QSO was KP4SN on September 15. In the couple of weeks since hanging it from the tower, I've worked ZS6UT, TU2MA, TL5A, VK6VZ, VK6LK, VK3ZL and NL7Z and the usual horde of Europeans on 160 with no fuss. I run about 800 watts out from a Ten-Tec Centurion.
Last January, I had about 200,000 points with 750 QSOs in the CQ WW CW 160 contest using the predecessor hung from trees.
Good luck,
Don, K2KQ

E51QMA on 160m

10. listopadu 2006 v 13:21 | Petr, OK1RP |  Band reports
E51 news on 160m coming from Mike, KM9D...
Conditions were not brilliant today, but I did manage to add another 100 Q's to the 160M log. Lots of operators felt the need to dupe me on top-band, but it was probably a way of offering encouragement as much as any thing else. Just before I went to the station at midnight (zone time), we had a tropical downpour and the local weather made for a noisy receiver; that coupled with the fact that signals were not especially loud made it very painful at times.

For 160M I used a classical top-loaded vertical (or T-antenna). The radiator is all aluminium tube (11-meter height) and I used 2 elevated (1/4 wave) radials.The feedpoint features another W2FMI described 'un-un', but this one has multiple taps to accommodate various impedance transformations. I've used various 160M antennas, but I think I am going to build this one again.

I like to situate the BigIR between the 80M and 160M antennas and I can 'retract the element' to reduce the mutual coupling between the radiators.

I'd love to get on the air and compare my 100-watts with whatever they're using on the other side at E51PDX.

I'll start taking things apart today, but leave the 80M antenna for a later attempt at Europe. My friend Dietmar, DL3DXX was an operator at XF4DL and won't arrive home till 11NOV. He needs North Cook on 80M and I want to give it a good try.

Oh, by the way, my 160M signal was copied RST229 at HA0DU this past week. That's a very difficult path; I only received the report via e-mail and although we made a concerted effort subsequent to that one instance, we were not able to complete a QSO.

Thanks for your interest.

73 for now,

de Mike, KM9D
(originaly reported on TOP band reflector)

160m band report 1.1.2006

10. listopadu 2006 v 0:21 | Petr, OK1RP |  Band reports
JA7OEM     1818.0 UA4UDF      cq cq 589                     1353 01 Jan 2006
JS1OKS     1814.2 VQ9LA       sig up up/1                   1402 01 Jan 2006
JR4ZTJ     1825.2 OH3XR       cq                            1404 01 Jan 2006
RW3XX      1818.0 UA4UDF      c  q                          1417 01 Jan 2006
N6SS-@     1823.9 JA7OEM      cq                            1420 01 Jan 2006
W9NGA      1823.8 JA7OEM      CQ CQ                         1422 01 Jan 2006
JK1AJX     1814.0 VQ9LA       CQ DX QSX 1 up                1434 01 Jan 2006
EU1AB      1818.0 UA4UDF      cq dx                         1445 01 Jan 2006
SM2CEW     1814.1 VQ9LA       CQ, getting stronger          1448 01 Jan 2006
EU1AB      1826.7 RU3ANQ      cq                            1450 01 Jan 2006
JA7OEM     1829.0 UT8ER       cq cq                         1451 01 Jan 2006
EU1AB      1829.0 UT8ER       cq                            1452 01 Jan 2006
EU1AB      1822.0 UT0MG       cq                            1453 01 Jan 2006
JA7OEM     1818.0 UA4UDF      cqing                         1457 01 Jan 2006
EU1AB      1827.7 YL2KO       cq dx                         1458 01 Jan 2006
JA1HGY     1819.0 BV4CT       CQ                            1515 01 Jan 2006
EU1AB      1820.1 OE1WEU      cq dx                         1516 01 Jan 2006
DL5WG      1822.0 UA0ACG      cq                            1820 01 Jan 2006
OH3XR      1825.6 VK3ZL       cq dx                         1855 01 Jan 2006
OH3XR      1821.1 VK3IO       cq dx                         1857 01 Jan 2006
IK2EGL     1828.0 SV0XA/9     calling CQ                    1927 01 Jan 2006
JF7DZA     1819.5 SM5CEU      cq                            1928 01 Jan 2006
JS1OKS     1817.5 UA4UDF      cq                            1938 01 Jan 2006
JF7DZA     1823.0 IV3PRK      cq                            1946 01 Jan 2006
OH3XR      1818.5 SU9HP       hr nw                         1948 01 Jan 2006
SV1ELF     1818.5 SU9HP                                     1954 01 Jan 2006
JR4ZTJ     1817.7 UA4UDF      cq                            2014 01 Jan 2006
DL6LAU     1818.3 SU9HP       who calls longest competion - 2021 01 Jan 2006
JR4ZTJ     1815.1 UA3TCJ      cq                            2023 01 Jan 2006
JR4ZTJ     1824.1 VK6IP       cq                            2038 01 Jan 2006
JA7OEM     1824.7 G3ZES       cq                            2042 01 Jan 2006
OH3XR      1824.1 VK6IP       cq                            2046 01 Jan 2006
F5BBD      1821.0 ZB2FK                                     2047 01 Jan 2006
JR4ZTJ     1823.0 OH2BO                                     2051 01 Jan 2006
JA1WLO     1822.8 YB5AQB      cq up1                        2105 01 Jan 2006
JA1FXR     1822.8 YB5AQB      cq  up1                       2107 01 Jan 2006
G3ZSS      1821.0 ZB2FK       nice sigs                     2111 01 Jan 2006
JA1FXR     1818.0 ES1GO       cq                            2116 01 Jan 2006
JR4ZTJ     1818.2 ES1GO       cq                            2119 01 Jan 2006
JA1FXR     1816.0 4X4WN       cq                            2124 01 Jan 2006
PY2RO      1818.5 4X4WN       r u there?                    2126 01 Jan 2006
K1GUN      1820.0 ON4UN       calling somebody?             2127 01 Jan 2006
NO2R       1829.1 AA1K/M      cq'n                          2143 01 Jan 2006
NN3Q       1824.9 G3ZES                                     2149 01 Jan 2006
K1GUN      1824.8 G3ZES       HNY Allan                     2153 01 Jan 2006
S59AA      1829.8 ZB2FK       corr. call                    2155 01 Jan 2006
JA1FNA     1815.0 4X4WN                                     2156 01 Jan 2006
JA1FXR     1818.4 OH2PJ       cq ja                         2202 01 Jan 2006
JA1FXR     1820.2 DJ7MI       cq                            2206 01 Jan 2006
OM3RDX     1818.4 PY2RO                                     2217 01 Jan 2006
K1GUN      1821.0 G3FPQ       cq dx gud sig wid qsb..       2245 01 Jan 2006
K1GUN      1829.0 G3FPQ       cq dx nw here...              2249 01 Jan 2006
K1GUN      1824.5 SM5BFJ      in qso..                      2257 01 Jan 2006
W3BGN      1829.0 WP3C        CQ                            2302 01 Jan 2006
N1IW       1829.0 WP3C        Al  cq cq                     2319 01 Jan 2006
OM6KW      1814.0 VQ9LA       STRONG TNX for new one        2335 01 Jan 2006

160m beacon list

10. listopadu 2006 v 0:15 | Petr, OK1RP |  Beacons
there is an improved list of the TOP band beacons. As You can see it is still "trial" and it's not final version and many of the beacons listed over here was reported years ago...maybe an operation has been cancelled or so. I will be appreciated to get any report or info about beacons from 160m band in Your location to put it into the list.
beacon call
beacon (available) informations
Maraba (Carajas), Brazil, B 06:06.7S 050:00.2W
Goroka, Papua New Guinea, PNG 06:04.3S 145:23.3E
Juiz de For a, Brazil, B 21:46.0S 043:23.0W
Chapeco, Brazil, B 27:07.0S 052:38.9W
Unid Oil Platform? Off coast of Brazil?
gm38na, 1W
KN04RU, Zlatita "v v v", 8 s carrier, no 24/7 op., 100/10/1, inv. L, via YO2LDC
beacon (0011 01 May)
fishnet beacon (0223 01 Aug)
kf15pf, 1W
fish beacon (0450 16 Sep)
ZL beacon (0952 18 May)
beacon ? (1429 02 Oct)
fishnet beacon (0059 01 Aug)
fish beacon (1936 29 Apr)
beacon (0832 08 Dec)

beacon (2118 11 Sep 2008)

beacon (1007 18 Jan)

fish beacon

beacon (2118 11 Sep 2008)

fishnet beacon (0239 08 Aug)

beacon, regular ID (0453 09 Sep)

fish beacon (0209 29 Apr)

beacon mode (2141 14 Apr)

fishnet beacon (0215 20 Aug)

beacon (1103 01 Mar)

fish beacon (0504 02 Apr)

fish beacon (0456 13 Feb)

beacon, three ID's every few mins (0221 27 Oct)

fish net beacon (0615 03 Jan)

driftnet beacon (0157 13 Dec)

fishnet beacon (0107 15 Feb)

fishnet beacon (0303 07 Oct)

Loud fishnet beacon

beacon, fishnet ? (1340 20 Nov)

beacon fm elgium (0136 03 Jan)

driftnet beacon (0107 12 Feb)

driftnet beacon

beacon ?

fishnet beacon (0247 24 Jul)

beacon (2118 11 Sep 2008)

beacon (0549 30 Sep)

jn89qg, 4W

JN35UB, Turin, add. QRSS-3 id .2 dipole -> W, via I1RFQ

JN79EV, Olesko u Prahy, on air 0400-1800UTC, vertical, via OK1FMZ

IO70IA, off (Poldhu), 9 pwr steps, -6 db each, id+carr(30s)+PSK at 0,15,30,45 min each hr

Last update : 17-Feb-2010
Do not hesitate to email me if any information is not valid or if You have any new one...
73, Petr OK1RP

160m band > ITU and Amateur Frequency Allocations

9. listopadu 2006 v 18:06 | Petr, OK1RP |  Band plan
According to the ITU and Amateur Frequency Allocations, this information can be found in URL ITU click on "HF"

Please remember 160 meters is a shared band, the amateurs share this band with other services.

Region 1 160 meters is from 1810 to 1850 kHz
Region 2 160 meters is from 1800 to 1850 and then from 1850 to
2000 kHz where is shared with other services (THIS is
only in Region 2) shared with fixed,mobile except
aeronautical mobile, Radiolocation and radionavagation,
with footnote saying:

Alternative allocation: in Argentina, Bolivia, Chile, Mexico, Paraguay, Peru, Uruguay and Venezuela, the band 1850-2000 kHz is allocated to the fixed, mobile except aeronautical mobile, radiolocation and radio services on a primary basis.

Region 3 160 meters is from 1800 to 2000 kHz but is shared with
Fixed, Mobile except aeronautical mobile Radionavagation,
and Radiolocation (It too is shared in Region 3, see foot
note 5.97)
In Region 3, the Loran system operates either on 1850 kHz or 1950 kHz, the bands occupied being 1825-1875 kHz and 1925-­1975 kHz respectively. Other services to which the band 1800-2000 kHz is allocated may use any frequency therein on condition that no harmful interference is caused to the Loran system operating on 1850 kHz or 1950 kHz.

Main thoughts would be to provide an area for Digital that all Regions could also use and adjust the suggested band frequencies so all could take part in DX openings, perhaps by gentleman's agreement use the area between 1845 and 1850 for Digital which would allow all Regions to communicate...

All radio amateurs should read the URL:

ITU click on "HF, there are very many amateurs who think the amateur bands are those outlined by the FCC and posted by the ARRL, many of the Amateur bands are shared with some exceptions. Even the popular 20 meter band is a shared band from 14250 to the top of the band.

( Original source by Bill Zellers, WA4FKI, IARU Region 2 MS Coordinator ARRL)
73, Petr OK1RP

TOP band history

9. listopadu 2006 v 15:41 | Petr, OK1RP |  Home
Welcome on the TOP band DX operation blog.
Next pages are devoted exclusively to Amateur radio - TOP band 160m > 1.8MHz DX operation.
You may find here some stuff concerning CW operating, technical topics, antennas, band plans and technical news dedicated for 160m band. I am trying to keep this pages as interesting as possible, so no boring personal data included.
This page includes archives of 160 meter history.
You can download W1BB's original newsletters and also famous 160m band article by W1BB.
These scanned files were contributed by Rolf PY1RO and converted to .pdf files by Ron PY2FUS. Information on this page is intended for private viewing. Publication without permission is prohibited.
(Original source by Tom, W8JI on
73, Petr OK1RP