Brian, W1XMM, has opened up his station for NARS members to operate Winter Field Day (WFD) on Saturday and Sunday January 27th and 28th so that members can operate WFD with the club callsign, N1FD. Brian’s station is in a great location, in Antrim, NH and should provide for some great operating.
What is Winter Field Day?
Winter Field Day is an annual event, sponsored by the Winter Field Day Association on the last full weekend in January to encourage development of emergency operating skills. It is open to frequencies on the HF, VHF and UHF bands. Here is a summary of the rules. The full rules can be found here.
All stations are limited to a maximum of 100 Watts PEP
QRP CW limit of 5 watts multiplier of 2
QRP Phone limit of 10 watts multiplier of 2
Each mode worked on each band counts as 1 multiplier
SteppIR DB18 at W1XMM
W1XMM Station
The following stations and associated bands will be available at W1XMM:
SteppIR Vertical 80/40/20/15/10/6m with a Yaesu FT991a
Log Periodic 50MHz -1.2GHz
Inverted V: 80M and 160M (one cable out to both)
Log Periodic Antenna at W1XMM
Great Opportunity for New and Experienced Hams!
This is a great opportunity for newly licensed or inactive amateurs to get some operating experience and a top-notch station. Brian and other members will be available to coach those who are new to HF and VHF operating.
We have been challenged by the ARES group to also set up an NVIS antenna and communicate with other ARES operators at set times. This would be both VHF/UHF and HF. The ARES is going to use this opportunity to test their communication skills here in New England.
SteppIR Vertical Antenna at W1XMM
Join Us
Interested in joining us for Winter Field Day? Please sign up by Thursday January 25th at 7:00 pm. Here’s what you can do:
Sign up for operating times – See this Forum Post for the link to the sign-up sheet.
Join us on Thursday, January 25th at 7:00 pm for our final Winter Field Day meeting. See this Forum Post for the Zoom link. Or contact Brian at [email protected] to get the details if you cannot make the meeting.
Show up at Brian’s QTH in Antrim before your operating slot.
I’ve been off the air since moving back to NH in 2020. Since the landscaping has not been completed on the property, it has been impossible to install the radials for a 6-BTV vertical. Radials don’t fare well under the treads of a Bobcat.
A collection of single-band, matched, end-fed half-wave (EFHW) antennas was constructed while I was living in FL. All of these antennas underwent testing on an antenna range consisting of three 10m tall masts spaced 70 ft apart. These antennas were matched with L-networks. The test results were reported in a separate article[1].
Seeing that July 4th weekend was approaching, I was eager to get on the air for a few days before the landscaper arrived. I decided on a 20m EFHW vertical that makes use of some of the guy ropes that were prepared for FL antenna testing. Figure 1 shows the installation of the 12.5m high telescoping fiberglass mast. The mast is anchored with a tilt-over base mounting plate described in a separate article[2]. Guying is provided at two levels. The guying radius is 25 ft. Guy anchoring is accomplished with polycarbonate Orange Screws[3]. While these anchors work well in FL sand, they do not work quite as well in rocky New England soil. I managed to snap one of them off in the process of screwing it into the ground.
My favorite knot for adjusting the guy rope tension is the taut-line hitch. I used the taut-line hitch on the FL antenna range for three weeks, and the anchor screws came loose before any of the taut-line hitches did.
Figure 1. 20m L-Network Matched EFHW Vertical. The wire antenna and matching network is fastened to the fiberglass mast with rubber bongo ties. The mast height is 12.5m (41 ft). Base anchoring is accomplished with a hinged, tilt-over base mounting plate that was described in another article. Please click on the photo to enlarge it.
The antenna counterpoise consists of a 3 ft (~ 1m) section of outer coax shield, Figure 2. A line choke is inserted after this 3 ft section of coax to terminate the counterpoise. The remainder of coax to the shack is made up of a 40 ft long section of RG-8X.
Figure 2. Matching Network, Coaxial Shield Counterpoise and Line Choke. The matching network was designed for 14.1 MHz. Since the matching network has a wide bandwidth, the antenna wire was cut slightly longer to resonate at the very bottom of the CW band. Please click on the photo to enlarge it.
A Smith Chart is plotted in Figure 3. It shows that the antenna match over the entire band is well within the 2:1 VSWR circle.
Figure 3. Smith Chart for 20m L-Matched EFHW Antenna. A match better than 2:1 match is achieved over the entire 20m band. The antenna wire was cut longer to provide the best match at 14.025 MHz. Please click on the photo to enlarge it.
The VSWR performance is plotted in Figure 4. The matching network consists of a lowpass L-network consisting of a series inductor followed by a shunt coaxial capacitor. The antenna wire has been cut to resonate at 14.025 MHz since I enjoy operating in the bottom 50 kHz of the 20m CW band. It’s not that the VSWR performance was that bad but I just could not understand why the antenna wasn’t achieving a near-perfect 1:1 match. I turns out that the residual mismatch is in the Polyphaser lightning arrestor located in the service entrance panel.
Figure 4. 20m VSWR Plot. The L-matching network exhibits wide bandwidth and good efficiency. The antenna wire is cut to resonate at the very bottom of the CW band where I like to operate. The match is very good but not perfect. This was due to the residual VSWR in the lightning arrestor located in the service entrance panel. Please click on the photo to enlarge it.
I operated a simple station consisting of an ICOM 718 at 100W to make three consecutive CW contacts with French stations. The next three days should produce some interesting DX.
Lately, there has been quite a bit of nice DX out there on the HF bands. If you are like me, you have a modest station to work from (100 watts and a wire antenna or two), but still like to chase DX. Often, you’ll hear lots of other “1 landers” working the DX station, but you can’t ever seem to break the pileup. Well, I have a few suggestions I’ve gathered over my 30 years of DX’ing and contesting that I’d like to share, which might help you get a few new ones.
One universal “truth” I have found though, above all others, is that working DX on CW is infinitely easier than working DX on SSB. If you have not yet jumped in to learn CW, I highly advise it if you want to be a successful DX’er and work the rare ones from a modest station. FT-8 / FT-4 is a bit of a different animal, and not all of what I will share is applicable to those digital modes, so I am going to focus on CW and SSB (although I work a lot of FT-8 and FT-4).
Without further ado…
#1: Listen, Listen, Listen
Did I mention you should listen? This is the first step in the process to catch that needed country. Almost all of my other recommendations stem from this… don’t be the alligator on the calling frequency… ever. A good DX’er listens far more than they transmit.
#2: Use a DX Cluster
I recommend using a DX Cluster for finding the DX. It is much easier to find the choice DX if you have others looking for it too! If you’re not familiar with a DX Cluster, there is a good primer here. If you are but aren’t sure which to connect to, I recommend W1DX (dxc.dxusa.net:7300), unless you use Ham Radio Deluxe, in which case I suggest WA9PIE-2 (hrd.wa9pie.net:8000). They both run the DXSpider cluster software. When you use a “cluster”, you might want to set a few filters to get rid of the spots (the reports of DX activity) you don’t really want to see. Here is a couple that work on DXSpider to get you started.
From the cluster, console enter the following to only see DX spots originating from US and Canadian stations…
Disconnect from the cluster, and then reconnect. At this point you should only see DX spots from US and VE stations
Typical DX Cluster screen
#3: Find and Hear the DX Station’s Calling Frequency
Once you identify the DX you want to chase, go find them on the air. Sometimes, that is easier said than done. Here’s where a set of good headphones and your radio’s RX IF filters will really come in handy.
Wearing headphones is important because they filter out all that background noise. If they are good headphones, they can also enhance the audio you are listening to and reduce fatigue.
As for your radio’s RX IF filters, this is where you may need to “RTFM”. Most modern HF radios will have some form of IF filter or DSP to shape the received audio. On Yaesu radios, they are “Width”, “Shift”, “Contour”, and “APF”. I won’t go into detail about their use here as all radios will be a bit different. I will say, however, that learning to use them is a critical part of effectively hearing the DX station. Ultimately, you can’t work ’em if you can’t hear ’em. Do not start calling the DX until you can reliably hear them.
#4: Find Where the DX is Listening
DX stations will listen in one of two ways… simplex (same TX and RX frequencies) or split (different TX and RX frequencies). Sometimes, the spot on the cluster will tell you where to start. However, many times the spots are not entirely right.
Simplex
If DX is working simplex, you are all set as to finding their RX frequency, but trust me… working rare DX simplex can be very difficult and painful. Always pray for split ;).
Split
If they are working split, finding the RX frequency can be a little challenging. Remember, working split means the DX station is transmitting on one frequency and listening somewhere else. Notice I didn’t say “on another frequency” – this is important to recognize. Many times, if the DX is listening on only one frequency, you can determine this from the DXCluster spot (i.e. “up 5”, which means that they are listening up 5 kHz from their TX frequency (such as TX: 28.507 / RX 28.512). However, often the DX is listening in a range of frequencies (i.e. “up 5-10”), which means they are listening somewhere between 5 and 10 kHz from their TX frequency (such as TX: 28.507 / RX 28.512 to 28.517). Now comes the fun part.
If the DX is listening split, it’s your job, as a skilled DX’er, to figure out their strategy and exploit it. Remember, even if the DX says “listening up 5”, they may not be listening up 5. They may in fact be listening up 7.2 or 9.3 or 3 kHz. Your job is to figure that out. Recently, I worked a DX station on CW that would sign “UP 1”. He was actually listening up 1.3 kHz. Had I simply called him up 1 kHz, I would not have worked him.
Patterns
To figure out their pattern and have a strategy to exploit it, you have some work to do, and likely some frustration in your future. It’s all worth it, though, if you bag an ATNO (All Time New One). Here are some steps to follow to find the DX stations listening frequency if they are working split.
Use the “split” function of your radio (you do know how to use “SPLIT” on your HF rig, right?). Set the “A” VFO to your RX frequency and the “B” VFO to a TX frequency where you think the DX is listening.
When the DX answers a station (i.e. “W1ABC UR 599”), flip the VFO’s so you are listening on the “B” VFO (or use your dual receive). Now find the station that the DX answered as they give their report. This can be tough, but is essential, especially if the DX is listening across a range of frequencies. Finding the station answering the DX gives you an idea of where the DX is actually listening. Do this until you can find/hear a station that the DX answered.
You can now do one of two things… flip the VFOs back and start calling the DX on the frequency you found that the other station was using, or you can keep listening to find if there is a pattern (like is the DX creeping up the band, down the band, moving 500 Hz at a time, staying put, etc). Once you can figure this out, your chances of working the DX greatly improve. When you’ve got their pattern (most DX stations will have one), flip your VFOs and work ’em. Repeating the process as needed.
[Side Note – Being DX
An important side note on being a DX station that may help you be better able to work them… a good DX operator will (in my opinion):
Work split. Simplex is fine if the DX is an everyday DX station like Poland or England. However, if they are even semi-rare, and expect pileups, they should work split. Simplex makes working rare DX very hard. The DX’ers have to separate the DX from the calling stations, which can be nearly impossible if the stations in the pileup call over top of the DX (which they do most of the time). IMO, simplex is bad.
Manage the pileup. Managing a pileup is hard and is a learned skill. To manage a pileup, the DX operator needs a strategy. It could be nearly anything, but having a strategy allows the DX to work more stations more efficiently and with less fatigue, and makes it easier for skilled DX’ers to work them.
]
#5: Use Your Rig’s “Monitor” Feature
If you’re working SSB, use your rig’s “Monitor” feature to listen to your transmitted audio. Do this to make sure it is not overdriven and sounds good. If you can adjust your TX audio as many new rigs can, do a little work to determine the best TX audio configuration for your voice and equipment. For many voices, there are differences in DX versus Rag Chew TX audio settings. For this, Google is your friend. (I recommend using “Monitor” for CW as well… lets you hear the quality of your transmitted tone too).
#6: Call High / Low
If you’re working CW and having a hard time working the DX on what you know is the correct frequency, try calling 100 Hz up or down from there. Sometimes that will serve to separate your signal from the others enough to work them. Due to the width of SSB signals, this rarely works on SSB, but can. Experiment.
#7: Watch Your Keying Speed
Also for CW… ideally you will match the DX’s keying speed. If they are calling at 35 WPM, call them at 35 WPM. You can go slower, but do not exceed their speed, as they may be at the top of their capability. If you send back at 45 WPM, you might never work ’em. Sometimes, however, if the pileup is full of speed demons on the key, sending a little more slowly will allow your signal to stand out. Again… experiment.
#8: Be Patient
I mean this in more than one way… it may take a while to work that ATNO, but patience on the mic or key can also pay off. While you are listening, notice if the DX is responding to stations quickly after calling “QRZ” or if there is some “dead” space in there. If there is a delay between “QRZ” and the DX responding, that may indicate that the pileup is all calling at the same time, immediately following the “QRZ”, making it impossible for the DX to discriminate calls; and the DX is waiting for a “laggard” to call them after the main pileup has finished. Be that laggard! Wait 3,4, or 5 seconds and then make your call. You might be the lone voice the DX hears!
#9: Use Proper Phonetics
Many stations like to use their own phonetics “Wally One Finger Licking Good” may sound funny, but when the conditions are marginal, there’s a huge pileup, and the DX’s first language is not English; you might as well hang up the mic. Use proper, recognized phonetics so the DX can understand your call. K0NR has a great document on proper phonetics.
#10: Use the DX Station’s First Language
I have found that using the DX station’s first language can give a 10 dB gain to your signal LOL. So, if you speak German, French, Spanish, or any other language and you find a DX station that speaks that, use it to your advantage!
To “Tail End” or Not?
While not a recommendation (hence no number), I wanted to address “tail ending”. This can be a controversial tactic, but it can also be very effective if done correctly.
Tail-ending is when you throw your callsign out at the very end of someone else’s report to the DX (for example you say “November One Xray Yankee Zulu” as soon as “K5AAA” finishes his report. It goes something like this (K5AAA says: “P5DX, UR 599 in Texas” and you immediately say “November One Xray Yankee Zulu”).
Depending on how quickly the DX responds to K5AAA and how they feel about tail-ending, you might be able to work them by doing this. Some DX do not like that practice and will not respond to “tail-enders”. Best to either see if others are successful with this or don’t do it. I personally do not like this tactic, but it can be effective (especially in contests).
Putting it Into Practice
Before you start using these tips… look back at tip #1. Your ears are your best tool to successfully work DX. Of course, there are times that you simply won’t work a DX station no matter what you do. I had that issue on the very morning I wrote this… 30 minutes of using every trick I know, and I still didn’t work them before their signal faded.
So there you have it… my top 10 list of strategies to be a successful DX’er. As always, your mileage may vary, and others may have a completely different list. Every little trick helps in my opinion. Whatever strategies you choose to employ, just get out there and have fun.
In case you are curious, I have been on both sides of the pileups, working as the DX from a number of locations with very large pileups, as well as working from my home as the DX’er. At home, I rarely run more than 100 watts and have never had more than wire antennas or a vertical… unfortunately no beams have ever graced my yard. Yet, I’ve been successful in working DXCC in a weekend during contests, and have worked DXCC on 5 bands. I finally have a good 160M antenna up, so maybe I’ll increase my country count there too in 2023!
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