Posts Tagged SSB

Ohio QSO Party 2010 – Summary

(subliminal message – If you operated the OhQP this year, and especially if you were an Ohio station, please upload your logs to Logbook of the World (LOTW) and eQSL. Many people worked this contest in the hopes of getting a rare Ohio county confirmation. Do your part and upload your logs. It’s not difficult. If you want to know more about LOTW and eQSL, click on the link at the top of this page)

I put a tremendous amount of thought into OhQP 2010 operations from my home this year. That’s not to say that I put enough effort into optimizing my antenna system. I did not. However, I did manage to at least get the 80m dipole up in inverted-V fashion. It sure is a good thing, because I actually made more Qs on 80m than anywhere else.

80m was rocking, both on CW and SSB. Unfortunate for me is the fact that I didn’t take into account how important SSB operations would be if i wanted to reach as many stations as possible. My 80m Vee tuned fine on CW but would not tune on SSB. I could not resist the temptation to operate [at reduced power levels] on 80m SSB even though I couldn’t come anywhere close to tuning the SSB portion. I made quite a few 80m SSB Qs, all things considered. But, next year I will be sure to have an antenna that easily tunes on 80m CW and SSB. Even with my situation on 80m SSB, stations seemed to copy me without a problem.

40m was a bust band for me. Apparently I didn’t know when the right time was to get on 40m. I made some 40m CW QSOs, but I didn’t make any 40m SSB Qs. And I see that a lot of other Ohio stations made significantly higher numbers of Qs on 40m. So I was definitely doing something wrong there. There were RTTY contests going on, and 40m CW was a hard place to operate. I heard some CW mixed in with the RTTY, but in the cases where I did I tried to avoid making a contact. I wanted to be friendly to the RTTY contesting guys. Too bad there was a RTTY contest on the same day as the OhQP though. This did affect things.

20m was alright. On only operated CW on 20m. Not sure why I didn’t bother to seek out SSB contacts.

I made 1 QSO on 15m. 15m/10m were pretty much deader than a doornail.

  1. There were a ton of Ohio stations on the air. Kenny [K2KW] did an excellent job with PR for this event.
  2. Weather was beautiful in all of Ohio for the contest
  3. QRN was at a minimum [at least for me] in Ohio

    I did a lot of CQing. It was effective. The problem is that I obviously didn’t know when to quit. Well, I knew there were many times when I should quit, but I didn’t. At those times I either should have checked other bands or SSB, or I should have QSY’d to a fresh frequency. Failing to adjust when rates were really low was a fatal flaw for me.

    Another fatal flaw of mine was that I didn’t choose the right band for the right time in order to maximize my Qs on all the workable bands.

    I also failed to look for the mobiles until the very end. This meant that I didn’t get a chance to work any of the mobiles/rovers when they were moving around East Ohio. The exception is K8RYU — Ralph did a fantastic job and I was able to work 3 counties on 80m with him. The mobile ops are all fantastic. They can copy fast/slow, without the need for repeats. In the end I was able to pick up a couple of county mults from the mobiles. If I had been on the ball, I’d probably have been able to snag K8MR and KC8YJJ on one or more bands/modes while they were in BELM / CARR / HARR / COLU / TUSC.

    Lastly, I failed to think ahead regarding the significant amount of SSB activity that would be occurring. This is probably because I usually run CW-only and because I usually have a piss poor setup for SSB. As it turns out though, low power aside, I actually have a good SSB setup now. I definitely need to get the 80m Vee to work on 80m SSB.

    In the end, I’m a bit disappointed with myself. Failure to pay attention caused me to not get any Qs for most of Eastern Ohio. I heard COSH and TUSC, but they weren’t CQing when I heard them and I never managed to catch up with them when they were CQing. Not even sure if they did CQ.

    I had a great time this year. I’m sure it is my best ever OhQP score. But even before the contest was over I new I made too many fatal mistakes and that had I given proper forethought to things I could have increased my score a bit and gotten the close counties. I also know there were some errors in my logs. I guarantine it won’t be a prisitine log, which is going to hurt my score.

    I saw the 3830 reports of quite a few out-of-state stations that did a phenomenal job, including working various OH mobiles 10-15 times.

    Thanks to all of the Ohio and out-of-state stations that worked me.

    My Results


    Ohio QSO Party

    Call: AA8IA
    Operator(s): AA8IA
    Station: AA8IA

    Class: Single Op LP
    QTH: Toronto OH
    Operating Time (hrs): 12

    Summary:
    Band CW Qs Ph Qs
    --------------------
    80: 160 39
    40: 47 0
    20: 39 0
    15: 1 0
    10: 0 0
    --------------------
    Total: 247 39 CW Mults = 86 Ph Mults = 32 Total Score = 62,894

    What counties I did not work: ALLE , ASHT , BELM , BROW , CARR , COSH , DEFI , GREE , HARD , HARR , HIGH , HOCK , JACK , LAWR , MAHO , MARI , MIAM , MONR , MORG , MUSK , NOBL , PAUL , PERR , PIKE , PORT , STAR , TUSC , WYAN . 28 counties not worked! What the hell? Now, think about how many of those had mobile operations that I missed. I heard a station in BELM (probably mobile) but they were gone before I had a chance to throw out my call and find out their call. I heard [but did not work] COSH and MUSK.

    K9TM reports having not worked 8 counties. And out of those 8 counties he did not work, I worked 3 of them and heard 2 of them. That means that at the very least, there were operations in 85 of the 88 counties. So I missed at least 25 counties that I could have worked but didn’t.

    I worked 35 or 36 states. K9TM worked 47 states. So I wasn’t too far off. I didn’t do much on 40m or 20m. Had I put in more effort on CW/SSB on those bands, I probably could have picked up a few more states.

    I worked a few DX stations including IK2, G3, four DLs, HP9, OK2, and SP5.

    To sum it all up, I should have worked more 40m CW and I should have worked 40m SSB and 80m SSB. I should have made sure the Vee tuned on 80m SSB before the contest started and should have rectified that problem if it didn’t. I should have paid attention to the mobile routes / timelines so as to be able to catch some more mobiles in the “rare” counties.

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NAQP SSB 2010 – the summary

At about T-2.5 hours til the end of the contest I got back on the air. 80m was all QRN. Very unpleasant. Of course, without an actual efficient antenna on 80m I just wasn’t being heard over the QRN. Every contact was a struggle. Between 11:30 PM and 12:05 AM I managed 4 Qs on 20m and 7 Qs on 80m. On 40m there were only two stations to be found that I hadn’t contacted previously.

At 12:06 AM I shut it down, with nearly two hours of contest left. I simply felt that I exhausted any possibility of useful contacts. I don’t know where the ops were – Was I just not hearing them? Or did everyone give up early?

My Results


North American QSO Party, SSB - August

Call: AA8IA
Operator(s): AA8IA
Station: AA8IA

Class: Single Op LP
QTH: Toronto, OH
Operating Time (hrs): 4.2

Summary:
Band QSOs Mults
-------------------
160: 0 0
80: 7 5
40: 37 23
20: 44 13
15: 0 0
10: 0 0
-------------------
Total: 88 41 Total Score = 3,608

Club: Mad River Radio Club

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North American QSO Party 2010 – SSB

The North American QSO Party SSB contest is this weekend (August 21st/22nd)

1800Z August 21 to 0600Z August 22, 2010 (Third full weekend in August)

Details and rules can be found at http://www.ncjweb.com/naqprules.php

I’m anticipating a lot of activity, and I plan to be active. Hope to see you on!

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SSB Contesting – I’m not quite there yet

I rarely operate SSB in contests [or outside of contests]. There are many reasons for this. The bottom line is that for a very modest station (no amp, low wire antennas), a CW signal is likely to be copied better on the receiving end than an SSB signal. Plus it’s a lot more trouble to get the “best” audio levels on transmit for maximum effect on SSB.

A CW signal typically occupies around 200 hz of spectrum. Depending upon how fast or slow the keying, the occupied bandwidth varies. On the other hand, with most amateur radio equipment an SSB signal occupies around 2.7 khz (2700 hz) of RF spectrum, give or take a little depending upon whether you are using filtering on the transmit side to cut off the upper and/or lower ends of the audio spectrum.

If you have a 100 watt transmitter, more of your power is going to be used to produce a much narrower signal on CW versus SSB. The wider the RF signal, the more power you are going to need in order for that signal to reach the same distance.

For someone with good hearing, they can usually hear audio frequencies between about 300 – 3000 Hz. But there are certain areas within that audio spectrum where we hear better and where the audio is more intelligible on the receiving end under marginal conditions (weak signal, lots of QRM/QRN, etc.).

We all have differing voice ranges. The microphone we are using may not adequately pick up those audio frequencies that are most accentuated when we speak. The audio stages of the transmitter we are using may need to be tuned to produce the most power at the audio frequencies that are best heard on the receiving end under marginal conditions.

I have a stock microphone. I haven’t done any homework regarding the best audio settings in my FT-950 to tailor the transmit audio to my specific voice characteristics. A stock microphone usually doesn’t pick up the best of my voice characteristics. The stock hand microphone is inconvenient in a contesting environment because you have to pick it up and hold it in front of your mouth each time you speak, which means you do not have that hand free to operate the radio or type on the keyboard. It’s best to buy a high quality microphone with an element that can reproduce your voice well while at the same time accentuating those audio frequencies that are best for DXing/contesting and not accentuate those frequencies that are more difficult to hear on the receiving end. Ideally I’d have something like a Heil Pro Set (combination headphones and microphone) and a foot switch so that I can key up without using my hands and I can have good sounding receive audio while blocking out other localized noise in the room, etc. I actually have what I consider to be a great set of headphones already (Sennheiser HD-280 Professional), so I would likely want to get a good Heil boom mic / boom assembly / foot switch. Then I could change the audio settings on the FT-950 to respond most favorably to the audio it receives from the Heil Mic. This would allow for a nice audio response and the best “audio punch” to ensure I’m being heard as good as I can be heard on the receiving end.

If you don’t have your transmit audio optimized, you won’t drive your signal with much power. On my FT-100 with the stock microphone, it was all I could do to get 50-60 watts of RF out when I would speak into the microphone. And what I really want is to be able to get as much of that 100w of power out when I speak into the mic.

So for now, SSB contesting is not very good for me. CW is much more effective. I’ll do it, and I’ll probably do some SSB in the Ohio QSO Party on August 28th and will likely participate [for a while] in the NAQP SSB contest this coming weekend.

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HF Station back on the air

Although I’m still working on a decision regarding other antennas for HF, I decided last week to string up a dipole with the help of a friend. It is a 40m diapole in a V configuration. However, it’s essentially a horizontal V because that is my only option at present.

I dragged all of my equipment out of the mothballs and managed to get it all hooked up in a very disorganized way. I bought a Signalink USB from DX Engineering to use for digital modes. So I’m currently using a 20-amp PS, a Yaesu FT-100, the aforementioned dipole and Signalink USB, and an LDG AT-100Pro tuner.

This weekend a few QSO parties were going on including the 7th Call Area QSO Party. I made a single CW contact, almost a dozen SSB contacts, and a few PSK31 contacts.

Jay, N8SJS, encouraged me to get into the digital mode action on HF, which is why I ended up getting the Signalink USB. We hunted down signals this weekend and I made a few more PSK31 contacts and a DominoEX contact. With the help of the PSKReporter website I was able to determine that others were hearing me on the various bands on PSK. This is really handy. Jay conned me into downloading and installing Ham Radio Deluxe, which I was familar with using a few years back. This is a great program for operating the digital modes and has just about every feature known to man in it. It’s a large program suite and taxes a computer a bit, but my laptop handles it with no problem.

I ended up hearing John, AC8JB, pick off somebody on PSK right before I was getting ready to. It was cool to hear another local [he's from Wellsville] working HF.

Although I realize the pattern of this dipole and its efficiency on the various bands is very unpredictable, it tunes up all the bands I wanted to work with no problems using the LDG tuner and I am able to make contacts. This is great, because now I don’t feel so much pressure to make a decision on other more expensive, cumbersome antennas. I can take my time thinking about what to get next.

I need to get some new coax. I’m using garbage RG8X that is at least 10 years old for HF. I have LMR-400 here and i may put that on. I need to put a coax choke in place to try and curb some RF from coming down into the shack. I also need to get everything set up on a desk and get the station grounded as best as possible.

I have a USB-to-Serial converter ordered so that i can use my serial CAT interface on the laptop [which lakes a bonafide serial port as we all know them]. This will make using HRD / DM-780 that much nicer.

Although thunderstorms were predicted all weekend, we had no T-storms and only had rain. This was great. I really enjoyed this weekend on HF and hope that by next weekend I’ll even have more fun.

Some good sites to monitor DX and band conditions:

DX Summit
PSKReporter
vhfdx.info

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