Ham Hum February 2016
The official newsletter of The Hamilton Amateur Radio Club (Inc.) Branch 12 of NZART - ZL1UX Active in Hamilton since 1923
Hamilton Amateur Radio Club Inc. Serving the Hamilton Community for over 90 Years
ZL1UX
Next Meeting 17th February AGM—19:30 Disclaimer: The Hamilton Amateur Radio Club (Inc) accepts no responsibility for opinions expressed in this publication. Where possible, the articles source details will be published. Copyright remains with the author or HARC. All rights reserved.
Contact Details Patron: Russell Richardson ZL1RWR President: “Jono” Jonassen ZL1UPJ zl1ux@nzart.org.nz Vice Presidents: Gary Lodge ZL1GA Gavin Petrie ZL1GWP 843 0326 zl1gwp@nzart.org.nz Secretary: Phil King ZL1PK 847 1320 zl1pk@nzart.org.nz AREC Section Leader: “Jono” Jonassen ZL1UPJ zl1upj@nzart.org.nz Deputy Section Leader: Phil King ZL1PK 847 1320 zl1pk@nzart.org.nz Treasurer: Tom Powell ZL1TJA zl1tja@nzart.org.nz Committee: Brett Pascoe ZL1FPG Mike Sanders ZL2MGS 855 1612 zl2mgs@nzart.org.nz Robin Holdsworth ZL1IC 855 4786 Sam Birch ZL1OBI Terry O’Loan ZL1TNO Ham Hum Editor: David King ZL1DGK 579 9930 zl1dgk@nzart.org.nz Ham Hum Printer: John Nicholson ZL1AUB 855 5435 ATV Co-ordinators: Phil King ZL1PK 847 1320 zl1pk@nzart.org.nz Robin Holdsworth ZL1IC 855 4786 Market Day Co-ordinator: harcmday@nzart.org.nz Robin Holdsworth ZL1IC 855 4786 Webmaster: Gavin Petrie ZL1GWP 843 0326 zl1gwp@nzart.org.nz Club Custodian: Currently vacant QSL Manager: Gary Lodge ZL1GA Net Controllers: 80m net—Phil King ZL1PK 847 1320 zl1pk@nzart.org.nz 2m net—Phil King ZL1PK 847 1320 zl1pk@nzart.org.nz NZART Examiners: ZL1IC, ZL1PK & ZL1TJA
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From the Editor This month is our annual AGM. Wed 17th at 7:00pm. The normal stuff will happen. Reports from various people. Nomination and Voting for committee and other positions. And some social time. I will continue to be your editor, and will work to get Ham Hum out early rather than late, like this issue. The Jock White Memorial Field Days is happening this year on Sat 27th and Sun 28th of this month. If you want to help please corner a committee person during the AGM. The Te Puke (Paengaroa) Junk Sale happens on 5th March. Open for breakfast at 6:30am, sale starts at 10:00am.
Next Committee Meetings 2 September and 7th October nd
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SB PROP ARL ARLP005 ARLP005 Propagation de K7RA Solar activity increased last week (January 21-27), compared to the previous seven days. Average daily sunspot numbers increased from 46 to 57.3, and average daily solar flux went from 100.7 to 106. Geomagnetic indices were also higher, with planetary A index going from 9 to 11.6. Predicted solar flux for the short term is 110 and 108 on January 29-30, 105 on January 31 through February 1, 108 on February 2-4, 100 on February 5-6, 105 on February 7-11, 110 on February 12-13, 105 on February 14-15, 100 on February 16-20, 105 on February 21 and 108 on February 22-24. Predicted planetary A index is 12, 8 and 5 on January 29-31, then 8, 15, 12 and 8 on February 1-4, 5 on February 5-6. 12 on February 7-8, 10 on February 9, 8 on February 10, 5 on February 11-16, then 10, 15, 10, 12 and 15 on February 17-21 and 12, 10, 8, 10 and 15 on February 22-26. F.K. Janda, OK1HH predicts the geomagnetic field will be quiet to unsettled on January 29-30, mostly quiet on January 31, quiet to unsettled on February 1, quiet to active February 2, quiet to unsettled February 3, quiet on February 4-5, quiet to unsettled February 6, quiet to active February 7-8, quiet to unsettled February 9, quiet on February 10, mostly quiet February 11-12, quiet to unsettled February 13, quiet to active February 14, mostly quiet February 15, active to disturbed February 16-17, quiet to active February 18-21, and mostly quiet on February 22-24. OK1HH expects an increase in solar wind on February 2-3, 5-7, 15-16 and 20-21. He feels less certain about the solar wind forecast for February 2-3. This report from Jeff Hartley, N8II of Shepherdstown, West Virginia on January 24: "It was a bit tough working VP8STI (South Sandwich) on 30 and 40 meters. Europe often seemed to have a big edge.” "10 meters was also tough, especially for K5P (Palmyra).” "20 meters continues to close pretty early to Europe and in all directions in the PM. Higher K index values of 3-4 continue to not matter that much most of the time.” "10 meters to the western USA is improving, with loud signals from Arizona and California most days from 1600-2100Z. We also had Es to Texas and Arkansas one day." We also heard from Jon Jones, N0JK on January 26:
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"The K5P DXpedition to Palmyra encountered low F2 MUFs to North America for the first part of their operation. There were only short, weak openings to Palmyra on 10 and 12 meters for many in North America. 15 and 20 meters were their workhorse bands.” "On January 20 a CME impact sparked a geomagnetic storm that afternoon and the K index peaked at 6. Geomagnetic storms can shut down high latitude polar paths, but can enhance propagation towards and across the geomagnetic equator. K5P had a booming signal on both 10 and 12 meters around 2000z, allowing many to work the rare country on these bands. On 10 and 12 meters they peaked over S-9 on my mobile vertical. I logged K5P on 12 meter CW, but couldn't get through the boiling cauldron on 10. I checked for their 6-meter beacon on 50.106, but no copy." That Kp-index value of 6 was at the 0600 UTC reading on January 21, which was late in the evening on January 20 for most of North America, 10:00 PM PST here on the West Coast. The planetary A index on January 20-21 was 25 and 32. Earlier on January 26 Jon reported on 6 meter activity: "A second 'peak' of sporadic-E for the 2015/2016 winter Es season on 6.” "Friday afternoon January 22 I worked KZ4RR EM90 and K1TO EL87 on 6 meters about 2000z via Es while mobile between Lawrence and Topeka, Kansas. Sunday January 24 at 2125z I had a nice chat with VE2XK FN07, again while I was mobile in Lawrence.” "N0JK/M 16/01/24 2127Z 50130.0 FN07 ES EM28 Tks Jon VE2XK” "K1TO EL87 heard the XE2HWB/b DL44 via double hop Es on Jan. 23 at 0034z." And finally, David Moore sent this link: https://shar.es/1hKeAN On Jan. 26th, 2016, NASA's Solar Dynamics Observatory captured imagery at several different wavelengths of superheated plasma exploding away from the Sun in a Coronal Mass Ejection event. The blast was not Earth-directed. If you would like to make a comment or have a tip for our readers, email the author at k7ra@arrl.net. For more information concerning radio propagation, see the ARRL Technical Information Service web page at, http://arrl.org/propagation-of-rf-signals. For an explanation of the numbers used in this bulletin, see http://arrl.org/the-sun-the-earththe-ionosphere. An archive of past propagation bulletins is at http://arrl.org/w1awbulletins-archive-propagation. More good information and tutorials on propagation are at http://k9la.us/. My own archives of the NOAA/USAF daily 45 day forecast for solar flux and planetary A index are in downloadable spreadsheet format at http://bit.ly/1VOqf9B
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and http://bit.ly/1DcpaC5 . Click on "Download this file" to download the archive, and ignore the security warning about file format. Pop-up blockers may suppress the download. Monthly propagation charts between four USA regions and twelve overseas locations are at http://arrl.org/propagation. Instructions for starting or ending email distribution of ARRL bulletins are at http:// arrl.org/bulletins. Sunspot numbers for January 21 through 27 were 56, 50, 54, 47, 58, 61, and 75, with a mean of 57.3. 10.7 cm flux was 104, 100.5, 98.9, 103.8, 107.6, 114.8, and 112.7, with a mean of 106. Estimated planetary A indices were 32, 14, 12, 11, 3, 4, and 5, with a mean of 11.6. Estimated mid-latitude A indices were 15, 10, 10, 9, 3, 3, and 3, with a mean of 7.6.
Tecsun PL-365/CountyComm GP-5/SSB AM/FM/ SW Radio With SSB The Tecsun PL-365/CountyComm GP-5/SSB looks almost identical to the earlier PL-360/GP-5-DSP but has been redesigned internally and is in fact built around a new chip, the SiLabs Si 4735 (the earlier models used the Si 4734). The new model adds SSB which was a prime requirement on the part of CountyComm who commissioned Tecsun to re-design the radio to meet the needs of government agencies for a small, inexpensive but good quality HF Communications receiver. There have been other enhancements added as well, including SW coverage all the way up to 30 MHz and extended battery life, which is claimed to be 225 hours on a set of three Alkaline AA cells. The radio will also internally recharge rechargeable batteries from any USB connection although no batteries are supplied with either the Tecsun or CountyComm’s version. The only apparent differences between the CountyComm versus Tecsun branded versions appear to be cosmetic ones… the colour of the antenna tip and Tuning thumbwheel. General Specifications & Features: The PL-365/GP-5/SSB is designed for easy one-handed operation in the style of a walkie-talkie. It comes with a unique plug-in rotating ferrite rod antenna for AM and LW, a wire antenna for SW, a belt clip, padded carry pouch with belt loop, ear buds and Owner’s Manual.
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Frequency Coverage: FM 76 – 108 MHz, 87-108 MHz, 87.5-108 MHz (Selectable) LW 150-519 KHz AM(MW) 520 – 1710 KHz SW 1711 – 29,999 KHz in 14 Bands (120M, 90, 75, 60, 49, 41, 31, 25, 22, 19, 16, 15, 13, 11) SSB SW Bands: (160M, 80, 40, 30, 24, 20, 17, 15, 12, 10) Size: 2 x 6 x 3/4″ 4.4 oz without batteries 450 memories – 100 AM, 100 FM, 250 SW Plus 100 ETM memories for temporary scanning storage such as when travelling…very handy indeed. Tuning is via a thumbwheel with Up/Down Band Selection buttons and ETM Tuning and there is an analogue volume thumbwheel on the right side as well. FM Tuning Steps 0.1 MHz (Fast), 0.01 MHz (Slow) AM (MW) Tuning Steps 9/10 KHz selectable or 1KHz Slow Mode LW 9/1 KHz Tuning Steps SW Tuning Steps 5/1 KHz SSB Fine Tuning Steps 50Hz, 20 Hz, 10 Hz Uses 3 AA Batteries and can recharge Ni-MH batteries in the radio (batteries not supplied) via mini USB input LCD Display of Frequency, FM Stereo, Battery level, Charging indicator, Signal Strength, Signal to Noise ratio, Temperature, Alarm, Sleep Timer, SW Band, Memory Address, ETM, Key-Lock etc. CountyComm of Sunnyvale, CA designs and supplies specialized products for local, state and federal agencies. They work directly with Silicon Labs (DSP chip manufacturer) and Tecsun and are the sole US importer of these models…even Kaito USA which is the US Importer of Tecsun radios shows only the older PL-360 on their site. It is possible that once CountyComm’s order has been fulfilled, Tecsun or Kaito versions may begin to appear at Kaito US and the Tecsun version at the usual eBay sites but so far only the older non-SSB model is thus available. My review sample was provided to me by the great folks at Tecsun Australia who tell me they will gladly ship anywhere in the
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world. (See link at end of review). In Use: The PL-365 is quite different than the traditional portables we have become accustomed to. The entire concept of one-handed operation makes for a completely different user experience. Again, think “Walkie-Talkie”without the “Talkie” and you’ll get it. The PL-365 conjures images of special ops forces trying to ferrite a criminal from his hiding place. Once you are comfortable with this kind of operation the radio begins to feel natural…and kind of cool! Initially I found the radio a bit awkward to get from here to there quickly in the SW bands since there is no keypad for direct frequency input. Even with the Up/Down band buttons which divide SW into 14 bands (and a separate group of 12 Ham Bands in SSB mode) , you can do lots of thumb-wheeling to get from one end of a band to the other. But after using it for a while I discovered ways to make frequency hopping easier and more intuitive. The most obvious is to use frequency presets at strategic frequencies, from which you can then tune up or down easily to get to your desired frequency. Also the ETM (Easy Tuning Mode) function on this radio is helpful because it does not disturb your regular presets…the ETM has its own, temporary 100 station memory which is perfect for travelling to new areas where you can quickly populate that memory bank with receivable signals in that location leaving all your other 450 presets untouched…very convenient. The tiny speaker offers minimal audio quality…this radio is clearly designed for voice communications and with the included earbuds you can have both privacy and better quality audio when needed..even FM Stereo. Rotating AM Ferrite Rod Antenna: OK. I’ll admit that at first I thought it strange to incorporate a rotating ferrite rod AM antenna on a radio this small..after all, why not just turn the whole radio? But after seeing how small the radio is and actually using it I realized that its main purposes are to allow a larger ferrite rod than that which would fit inside the radio, plus the ability to remove it completely to make the radio even smaller when it isn’t needed – you can still pick up strong local AM signals without it. When it is installed you can rotate it out of the way to extend the whip antenna, plus this design gives you an AM Antenna input jack which is missing on most of today’s portables…a nice plus. Performance: Here’s where the rubber meets the road. Because it is central to the design objective for this radio I concentrated on SW performance first. I compared the PL-365 with several popular portables and it was competitive, fairing slightly better than the many under $60 radios and slightly less well than radios in the general $125 – $200 price range. SW sensitivity was a hair less than the larger Tecsun Portables such as the PL-660-, PL-680 and PL-880. The PL-365 performed at its best as long as I was holding the radio in my hand…some signals were weaker when I set the radio down so evidently hand capacitance is important here…not unusual with smaller portables. As expected sensitivity was much better using the supplied clip-on wire antenna. The ETM function was very helpful finding listenable SW signals. Selectivity was good…I had no trouble separating most SW signals
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from nearby ones on the dial. Interestingly the PL-365 has two filter bandwidth options…a wide filter (I would guess it to be about 6 KHz) and a narrow filter (I’d guess perhaps 2.5-3 KHz) which is automatically switched in when you enter SSB mode. While purists might argue that it would be nicer to have manual control over the two bandwidths in both modes, the other side of the coin is that this is an elegant way to simplify onehanded operation. SSB Mode was an important part of the PL-365’s design and considering the onehanded design of the radio Tecsun has done an incredible job of making SSB tuning as precise and easy as can be – it actually works quite well once you get used to it. From SW mode press the USB/LSB button and after a few seconds you will see a “U” indicating that you are in Upper Sideband mode, or USB. Press it again to toggle to Lower Sideband mode and an “L” will display. Now the Up/Down buttons will scan the amateur (Ham) bands. Once you are tuned to a signal hit the BFO Button and fine tune with the tuning thumbwheel for most natural audio. Another press of the USB button exits SSB mode. In SSB mode the bandwidth is narrowed as I mentioned above and a new set of 12 meter bands are selectable. The SSB Fine Tuning increments of 50, 20 or 10 Hz are selected while the radio is off but generally you will find one setting which you prefer and leave it there. The default 50 Hz setting is fine enough to achieve decent results…of course as you decrease the increments to 20 or 10 Hz you gain finer control at the expense of a bit more thumbwheel turning. I ended up setting mine to 20 Hz – which setting you choose will depend largely on how you use the radio. Overall I found the PL-365 to be relatively easy to tune for natural sound on SSB. Some other radios with variable RF Gain might provide cleaner SSB audio recovery in some cases…a work-around with stronger signals is to try lowering the whip a bit. Again this radio was designed for small size, reliable SSB communications in the field so some compromises are inevitable compared with less-portable radios. AM Reception was better than I had expected. Although Tecsun’s current radios are somewhat noisy on AM, the PL-365 actually outperformed the larger PL-680 on AM with slightly better sensitivity and less background hiss on weaker signals. It was only a hair less sensitive than the PL-660 and PL-880 on AM which for this size radio is great performance. You can still receive strong AM signals with the ferrite bar removed but you’ll want to keep it handy for any real AM reception. (I would love to see someone offer a larger plug-in ferrite bar as an option for this radio which could make it an awesome AM receiver…Hint Hint!). FM Reception was very good overall. Comparing it with other portables the PL-365 made a good showing with excellent FM selectivity and capture ratio along with good to very good sensitivity. It also provides Stereo (switchable to mono) at the earphone jack. I wouldn’t rate it as the very best audio quality as it was somewhat bandwidth limited and there are no tone controls but for general listening it is fine.
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Other Characteristics: The PL-365 has the same Fast/Slow tuning feature found on many of Tecsun’s other radios which changes tuning steps based on how fast you tune. You have to learn the feel of it or it can be a bit unpredictable. Using AM as an example, as you begin to tune it will be start in Slow mode, progressing from, for example, 770 to 771, 772, 773. Once you reach 780 if you continuously tune it will switch to Fast mode (10 KHz steps) and progress to 790, 800, 810 etc. But if you hesitate for a moment it will revert back to 1KHz steps then switch back to Fast mode if you keep tuning. It can actually be very handy once you get the feel of it…it is not defeatable on the PL-365. The radio also mutes briefly while tuning which makes band scanning less enjoyable than it is on radios that don’t mute…common with many DSP radios these days and something the manufacturers will hopefully soon learn to eliminate. It does release very quickly on the PL-365 however which is a help so if you tune slowly enough you can hear what you’re passing over. (Many early digital radios made noises [known as “chuffing”] or muted themselves while tuning. Later designs eliminated this and gave us digital radios that tune as smoothly and seamlessly as old analog radios used to. Now the newest crop of DSP designs have given us great improvements in manufacturing cost, features, performance and unit-to-unit consistency but they also can take time to produce audio when you change frequencies…I’m hopeful it will eventually be eliminated completely). Conclusion: The Tecsun PL-365 is a bit difficult to compare with other multi-band portables because its “one-handed” form factor is so unusual. Certain design decisions were clearly made to enhance ease of use, yet it’s overall performance is excellent for the size and price. Most smaller radios are held while being tuned or carried around but they are generally operated with both hands, or placed on a desk or table. The PL-365 definitively changes all this with a tactical design which almost expects to be held full time as you would a walkie talkie. Once you accept that it becomes apparent that its layout and design were carefully considered and well executed. For example, the lack of a keypad is definitely a hindrance to ease of tuning, yet the general shape and layout of the radio make one-handed tuning as easy as possible. For many users that fact alone will make the PL-365/ CountyComm GP-5/SSB well worth the price of admission…it is a unique product! See It At Tecsun Australia (will ship worldwide): Jay Allen
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INTRODUCTION HAM PRIDE IS ALIVE AND THRIVING By Dave Ingram, K4TWJ (SK) (This introduction was written by Dave before he became a Silent Key.) Over the years, I have written more than 1,000 articles and dozens of books on many, many aspects of amateur radio, both technical and nontechnical, and your response indicated the most consistently popular topicsare CW and keys. Why? Opinions may vary, but the obvious answer is keys (including bugs and paddles) are amateur radio’s all-time favourite accessory and a universally recognized symbol of radio communications. Older keys stand as genuine pieces of radio history you can hold in your hand, and modern keys and paddles illustrate the artistic creativity and ingenuity of their designers. Amateur radio may change noticeably in the future, but our interest in keys and their historically significant background will surely live on for many years hence. Operating CW with a just-right-for-you key, bug, or paddle is also enjoyable, as well as a unique skill and a silent means of non-verbal communication. Over the years, prisoners of war, hostages, and severely handicapped individuals have communicated by pipe-tapped, eye-blinked Morse code and more. Today many radio amateurs carry Medic Alert cards showing the Morse code and stating if injured but able to move some body part, they can “talk” via Morse code. In addition, the use of CW/ Morse code and internationally recognized “Q” symbols (QTH, QSL, QRN, etc.) produce a universal language, so you can communicate with other radio amateurs of all languages worldwide.
You, the amateur radio operator, play a very important role in helping ensure our proud history, legacies, and traditions—the traits that place us 10 dB above the crowd and fill the airwaves, circle the Earth, and live on throughout the annals of time. Make no mistake, friends. Passing on these pictures and information to future generations of amateurs—both today and in future years, just as I am passing them on to you now—is one of the
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best contributions you can make to our grand amateur radio world. Keep the ball rolling! As you probably know, books of a considerable size are too expensive to print freely in large quantities and ship over long distances. We are also progressing toward a “paperless society,” so producing this book on CD (the original) and then making the book available via the Internet is quite necessary. There’s more! I have been compiling another book containing views and details of even more exotic keys and paddles, plus select reprints of my celebrated series of “HAM PRIDE” articles that have been translated and published worldwide. This combination is guaranteed to make everyone proud to be a legally tested and licensed radio amateur. Surely I speak for everyone in thanking the companies, foundations, organizations, and publications that support this endeavor. They are simply the best! 73, and may the force of good signals always be with you! Dave Ingram, K4TWJ {Keys IV can be found at https://www.dropbox.com/s/5s5yecwoc4urbr2/ KEYS_IV.pdf?dl=0 – Editor}
Calling ZL CW operators! You are invited to join us in many new CW activities and to join the site VKCW.net - here are a few of the activities that may be of interest to ZL CW operators: • A CW News Bulletin (QST) is broadcast on 7022.5/14022.5/21022.5 each Satur-
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day afternoon 0400 UTC with a repeat Sunday morning at 2200 UTC lasting half an hour at 17 WPM. A second repeat is on Monday evenings at 1000UTC on 3522.5/7022.5/14022.5. We'd love to have call backs from ZL stations after any of these QST with your reception reports. • Due to low levels of CW activity we have a functioning CW Calling Frequency on 7050 which works very much like how 500kc/s used to work in the olden days of maritime radio. After establishing contact stations QSY off for QSO. Especially Tuesday/Thursday/Saturday evenings is popular as there is also "CW Bash" hour around 0900-1000UTC. Be great to have ZL participate. Many other activities including CW Nets can be found along the top menu at www.vkcw.net and we hope CW operators in ZL will join the site and various activities of possible interest. 77 "Best Wishes and Long Live CW" de Lou VK5EEE
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Upcoming Happenings & Events Date
Happenings & Events
1st February
HF Net, 3.575 MHz, 19:30
2nd February
VHF Net, 146.525 MHz, 20:00
5th February
NZART HQ Infoline
6-7 February
NZART DX Weekend Contest
8th February
HF Net, 3.575 MHz, 19:30
9th February
VHF Net, 146.525 MHz, 20:00
15th February
HF Net, 3.575 MHz, 19:30
16th February
VHF Net, 146.525 MHz, 20:00
17th February
Monthly Club General Meeting
19th February
NZART HQ Infoline
22nd February
HF Net, 3.575 MHz, 19:30
23rd February
VHF Net, 146.525 MHz, 20:00
27-28 February
NZART Jock White Memorial Field Days Contest
28th February
NZART Official Broadcast
29th February
HF Net, 3.575 MHz, 19:30
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4th March—NZART HQ Infoline 5th March—Te Puke Junk Sale (Paengaroa) 16th March—Monthly Club General Meeting 18th March—NZART HQ Infoline 27th March—NZART Official Broadcast 1st April—NZART HQ Infoline 2-3 April—NZART Low Band Contest 15th April—NZART HQ Infoline 24th April—NZART Official Broadcast 21-22 May—NZART Sangster Shield Contest 4-5 June—NZART AGM/Conference 11-12 June—NZART Hibernation Contest 2-3 July—NZART Memorial Contest 16th July—WIA VK/ZL Trans-Tasman Low-Band Contest 6-7 August—NZART Brass Monkey Contest 13th August—Annual Hamilton Market Day 1-2 October—NZART Microwave Contest 5th November—NZART Straight Key Night 3-4 December—NZART Field Day Contest
For more information on any of the above please contact myself or any committee member.
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Club Information Contacts :Business Meeting:
1930 First Wednesday of each month except January 88 Seddon Road, Hamilton
General Meeting:
1930 Third Wednesday of each month (except Jan) 88 Seddon Road, Hamilton
Homepage: eMail:
http://www.zl1ux.org.nz branch.12@nzart.org.nz
HF Net: VHF Net:
3.575MHz LSB 1930 Mondays 146.525MHz simplex 2000 Tuesdays
2m Repeater: STSP Repeaters: ATV Repeater:
145.325MHz -600kHz split 146.675MHz -600kHz split 438.725MHz -5 MHz split Off air pending channel changes
Cover Photo: Te Weraiti site, part of the Branch 81 WaiPlenty system that includes ‘5675 in Hamilton.
Sender
Hamilton Amateur Radio Club (Inc) PO Box 606 Hamilton 3240