Proper operating practices & contests ..

For the love of god, QRL (the frequency is in use)! QSY (change frequency)!

This weekend the CQ WPX RTTY contest is in full swing and so, naturally, all the rule breakers and ignorant operators are out in force.

It is frustrating using low-power weak signal modes during a contest because of the overwhelming ignorance of many contest operators. You see, in most HF bands, JT65-A operating can be found at the *.076MHz range. We typically operate at or below the noise floor, so I could understand if operators do not always hear a station prior to transmitting, however, WE ARE STILL THERE!! And likely have been offering 2-way exchanges BEFORE the alligators start their lower-appendage waving.

What would help us low-power guys would be for the contest panel to penalize operators for walking on top of well established “standard” frequencies such as that of the JT65 and QRSS crowd. Add a rule which forbids conducting your contest QSO on these established frequencies and then deduct a large number of points when operators submit logs where they tried to make a contact on the forbidden frequencies (eg. 7.076-7.079 MHz to allow a single side-band width of operating room). Such a measure should wake people up – or at the very least, punish poor operating practices.

This is an opportunity to inform people as well as to encourage respectful operating practices. Too bad the contest organizers even need to be told this …

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Software Defined Radio (SDR) on the Web

For those who are interested in amateur radio or short-wave listening, there are a number of web-based radio stations which you can use to monitor the air-waves. These resources are so handy in fact, that operating amateurs sometimes make use of these web portals to hear how their signal sounds at a distant station!

When I was first studying for my basic exam, I would often take breaks and tune-around the bands and listen in. This greatly helped my appreciation for what the relationship between frequency and operating band really was. I also learned alot about the proper procedures, etc. when operating in HF.

The WebSDR systems are typically receive only so as to not violate any radio related laws. All the same, tuning around the air-waves on receive only can be quite fun. Oh, and you can also decode digital HF by passing the output audio to your line-in (either in software, or using a 3.5mm to 3.5mm jack cable).

Here are a few SDR links:

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Fourth (and final) lecture for OVMRC course of 2011/2012

Tonight I gave my fourth and final lecture which covered VHF/UHF operation. This is an exciting topic as it attempts to prepare students for operating an amateur radio on their own for the first time. This is certainly how many people get started in the hobby.

The lecture went well, and we even had a practice “net” to get the students prepared to participate in a net once they get their first VHF/UHF radios.

As with all of my lecture material, the slides can be downloaded as PDF files under: Downloads / User Guides

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Second road-trip (in as many weeks)

So, Julie and I just returned from a road-trip to visit her father in Oshawa which meant another opportunity for me to play radio for a few hours. On the way down, bands were looking decent (considering the recent coronal mass ejection) so I took the time to make some contacts on 15 & 20m.

ARRL Antenna Handbook 22nd edn.

ARRL Antenna Handbook 22nd edition.

The most distant QSOs I managed were 6100km to DG7NY in Germany (PSK31) and 6500km to IZ5PNL in Italy (JT65-HF). Good lord this mobile setup works well! As usual, I was getting out-standing reports on the visual qualities of my trace on the digi-mode waterfalls.

Once in Oshawa, I took the opportunity to stop by Durham Radio to pick up a few things:

NMO to 3/8" adapter

NMO to 3/8" adapter

The NMO to 3/8″ adapter is meant to allow the use of Ham-Stick antennas which may offer some performance gains over the ATAS-120A antenna. I am not entirely convinced that the difference would be observable, however, I am open to the idea.

The secondary purpose of the NMO to 3/8″ adapter is to allow the rapid deployment of an NVIS (near vertical incident sky-wave) system. Using NVIS could allow for close-in HF contacts when VHF fails.

NMO to SO-239 adapter

NMO to SO-239 adapter

The NMO to SO-239 adapter will allow for the use of a PL-259 patch-cord for swapping over to a different (off-vehicle) antenna system for 2M/70cm.

I would like to be able to use something other than a 5/8 wave whip antenna when I arrive at a base-camp type position. I envision something like a 2M / 6M loop system or even a painter’s mast Yagi type array.

NMO rain cover

NMO rain cover

Finally, the NMO rain covers I purchased are meant to protect the contacts of the NMO mounts when they are not in use. I figure this would be a good practice as small measures of prevention typically yield excellent results.

The rain covers are plastic thread-on caps with o-rings at the base. For $4 these little guys can not be beat for value! No need to spend upwards of $10 on a “brand name” cover when these are readily available.

Upon arrival at our Dad’s place, I uploaded my logs and took the time to update Fldigi (3.21.37) and JT65-HF (1.0.9.3)as well as downloading WSJT.

On the drive home, I was given the opportunity to play radio from Oshawa to Kingston, so I took advantage of every possible second. The bands today (Jan 27th) were quite bad – lots of QSB (fading) and some really odd QRM (man-made noise) on 20M (14.072MHz) which sounded like it might have been PACTOR-II as it was 500Hz wide. The transmission came from a VERY strong signal source walked all over QSOs in-progress which is extremely rude. In hindsight, I wish that I had recorded the incoming audio (which is possible in Fldigi: File > Audio > RX Capture) for post-processing.

Despite the very poor operating conditions, I still managed to make contacts with stations as distant as 5800km to a special event call station LX75RL (PSK31) and 8200km to PU2OAJ in Brazil (PSK31).

All in all, a great trip and another opportunity to operate /M

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