Archive for category D-Star Users

A Generous Gift from …???

Phil and I were at Hamcation this last weekend and enjoying all of the flea market displays – and even selling quite a bit of unused equipment.

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While at the inside booths, a well known ham made a most generous gift to us – due to our leadership in creating the DSTAR network in north-east Florida, this individual will be donating a full UHF DStar repeater system to our group for installation in the network with the anticipation of enhancing and augmenting coverage.

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We don’t have timeframes yet, nor locations identified – but we are thrilled to have the support of this generous gift.

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More as we get further details.

KA4RES (Palm Coast) changing Frequency

some time in February, the KA4RES D-Star repeater in Palm Coast, FL will be changing frequency to 145.320 -600khz, while maintaining the same call-sign (for RPT1 and RPT-2). Over the last two years, we have been operating on a frequency for which we were not officially coordinated, since the current 147.320 frequency was used before we got official coordination.

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Steve (KD4DNQ) and Rick (KC2HFL) will be retuning a replacement duplexer, after which we will swap the frequencies (the RF module is changed using a PC). The system should only be off the air for about 45 minutes as we bolt-on the new duplexer to the rack and reconnect the cables.

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We’ll give a 7-day notice before the swap, but you can already program your radios for the new frequency and store the entry into a new memory.

JAX Beach – now on VHF

UPDATE from 4-Dec-2011 – from Scott (K2LSF)

As of 1300 Sunday12/4/11 the Jax Beach repeater is operational as VHF :

Frequency: 145.360
Call Sign: KJ4RYG
Your Call: CQCQCQ
RPT1: KJ4RYG C
RPT2: KJ4RYG G (if you want to utilize gateway services)

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This morning, a group of the JAX DSTAR repeater support group, led by Scott (K2LSF), along with Phil (K5BBC) and Rick (KC2HFL) from Palm Coast successfully deployed the 2M RF stack from Big JAX to the JAX Beach location (it’s lower and a bit further to the east, compared to Big JAX).

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All indications are that the system is doing well – coverage SHOULD be excellent, but that has not been confirmed yet (signal reports are welcome). There is one item which needs to be resolved tomorrow, which is the connection between the RF deck to the controller – a simple change which Scott will make in plugging the 2m RF deck into the proper RJ45 port to match port “C”.

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The work today took less than 90 minutes – which was the time we allocated for the work. I was not able to go (planned absence), but I knew that the guys would be able to handle the job famously without me – and I was right. Having the trained and qualified crew to maintain the system is a huge blessing – thanks guys..!!

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Contact Scott (K2LSF) if you have questions on the system in JAX Beach.

Florida D-Star Rag Chew Net – Tuesdays at 21:00

from our buddy Eddie :
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Please remember to join us for The Florida D-STAR Rag Chew net on REF 034C every Tuesday evening at 2100 hrs local time. We will have a rotation of net control stations as well as guests from time to time in an informal setting to keep us current on D-STAR happenings and to answer questions for any people having operational difficulties.
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As we have numerous hams now on Facebook I have created a group on Facebook. Please feel free to join the group and we will keep you up to date. Here is the link.https://www.facebook.com/groups/240486009340972/
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I am looking for a steady rotation of net control stations to keep this going. If you are interested in volunteering please email me at kj4lrb@hotmail.com and we will work out a schedule. Looking forward to seeing everyone there. 73’s to all !!!
Eddie/KJ4LRB - Net Manager Florida D-STAR Rag Chew Net

Flagler ARES Net – Wednesday at 7:30 and 8:00pm

19:30 on 146.715   then again at 20:00 on DSTAR (KA4RES in Palm Coast). Bill Schwarz is the Net Control for the Net.

Big JAX – RIP

the work party went to Big JAX today and found a number of issues – what was thought to be just a power amplifier problem was indeed that (the 160w amplifier had damaged finals), but when sweeping the antenna system with the Agilent N9330B, we found that the antenna system appears to be seriously compromised. Obviously, this is not good, since we have 900+ feet of VXL7 (1-5/8″) hardline going to the DB-224E antenna – but as they say … s^&* happens and sometimes despite all of the control measures that we have installed (including a Polyphaser panel for both the AC and RF), stuff happens.

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Contemplating the options, I made the decision to temporarily abandon the Big JAX site – we have spent over $4,000 on the hardline, antenna, mounting hardware for the hardline and the labor for the installation (over $2,500 in labor alone). The prognosis of having another $1k+ is too much – Big JAX was never a super performing site (in Doug and my mind, it should have done MUCH better than it ever did), so I’m just not willing to put good money after mediocre at this time.

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Had the problem just been the blown amplifier, we were prepared to replace it with our spare (even so, the amplifier is almost $500..!!), but the risk of causing another amplifier failure due to a poorly mismatched antenna system just made the decision easier.

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I know that many in the JAX area are disappointed – but you can help by trying to find another site – but preferably on the top of a high building were we can easily get access to the antenna and have short(er) feedline runs.

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In the meantime, Scott has a replacement UHF duplexer that he will install at the JAX Beach site in the next week – that should improve that site’s receive capability enormously (there was a bad connection INSIDE of the existing duplexer causing one of the receiver-side cavities to be out-of-line). We’ll run with the UHF configuration for a while until we decide what to do.

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Best to all..

Mike

Big JAX Diagnostic Trip – Sunday 23-Oct

So far, all indications are that the Transmit side of Big JAX is the culprit – but that remains to be seen. Scott (K2LSF) has been working with the TV station and we are scheduled for a field-trip to the site on Sunday of this weekend and will try to determine what’s going on with that system. Typical diagnostics like sweeping the antenna/feedline system, then checking for output power from the amplifier. We’ll take some spare components as well – in case it’s an easy fix.

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We’ll report back findings after the trip. Thanks to Scott for all the hard work in coordinating the various parties for the weekend trip. It’s a bigger challenge than most of you might realize..!!

Elecraft KPA500

Additional Note (12-Sept) – for those of you who have thought about EME on 6m, this might be the perfect amplifier… coupled to a single antenna and using WSJT, realistic EME might be possible. We’ll try and report back in another segment.  Or… how about high-power 6m DSTAR..?? It’s legal… yet another thing to try..!!

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okay… color me crazy, but when I’m on a roll there’s nothing that can stop me.

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As all of you know, I’ve completely gutted my HF station of Yaesu, Icom and Kenwood equipment (with the exception of EMCOMM-1, which will continue to have Kenwood equipment (TS-570 and TS-480). But the home stations have all been converted to Elecraft. Sorry… just remembered that I still have an IC-7000 for the car, as well as a Yaesu FT-100D for the bus…. but you get the picture..

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I am in love with the philosophy of the Elecraft company and how they release hardware products, firmware and software – and how they treat their customers. Wayne Burdick (N6KR) and Eric Swartz (WA6HHQ) are very involved in soliciting user feedback and requests, even though they are the founders and owners of the company. I see Wayne and Eric on the email reflector virtually every day, answering questions, providing advice, engaging in discussions and nurturing the community that they’ve built. The community of Elecraft users worldwide is the tightest-knit group of amateurs that I have ever seen. In many cases, I’ve had questions and have either found the exact answer on the nabble.com reflector that Elecraft wisely created long ago, or have made an inquiry and received an accurate response within 24 hours (often within a few hours). An individual in Wake Forest (W3FPR – Don) has been an absolute gem – giving advice to folks around the world, as a genuine world-class expert on the K1, K2, KX1 and even the K3 line of products. Don has even helped me on a number of occasions, having worked on both my K2 and my KX1 – reviewing my construction technique, making suggestions and correcting mistakes I might have made – he’s a wonderful resource and I’m most grateful to have access to him (at a very reasonable cost, I might add). Most of these individuals do it because they are passionate about the product and more-than-willing to share their experiences and knowledge – I love that attitude.

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I was able to see the (relatively) new KPA500 solid-state amplifier the other day – amazingly it’s exactly the same size as the K3 and only weights 26 pounds with the built-in power supply. Although the name connotes that it’s rated at 500w, that’s actually the Minimum power. Most folks are getting in excess of 650 and the firmware appears to limit at 700 in order to preserve the IMD characteristics of the unit. Let’s see – if we use 650w as a realistic number, that means that the unit is only about 4db below full legal limit of 1500w output – but remember, it’s TWENTY-SIX POUNDS… unlike either of my Alphas, which tip the scales at over 70 pounds EACH. Unless you’re an organized DXpedition, lugging around an Alpha-99 or Alpha-87A would be impractical (especially since you’re really supposed to remove the transformer, which ALONE is about 45 pounds). By contrast, I could easily pack the K3/P3 combination in my carry-on luggage (total of about 13 pounds), and pack the KPA500 in a roll-on Pelican case as check-in baggage (total of about 35 pounds, but ON WHEELS). The Pelican could also transport the power supply for the K3/P3 combination, as well as feedline, connectors, Wire Antennas, etc.  Another case would house constructible antennas like a HexBeam or the BuddiPole system, or the new antennas from N6BT (Tom Schiller, of former Force-12 and Team Vertical fame). Tom’s new antennas are killers – and we’ll be reviewing some of them in the next couple of months.

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So the KPA should be arriving this coming week – and as in all other Elecraft kits – should come together like a dream. At $2,000 for the kit (which only takes about 6 hours to assemble), it has got to be one of the most reasonably priced solid-state HF amplifiers out there, but even more importantly, the integration of the KPA500 with the K3 is really outstanding. The two form a SEAMLESS 500 watt RADIO SYSTEM – with full bi-directional communication between the boxes – truly superb engineering.

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The KAT500 Auto Antenna Tuner (companion to the KPA500) should be out by early 1Q2012 (possibly sooner, according to Eric). Like other Elecraft tuners, it will handle 10:1 SWR on most bands, will be 160m-6m and will be able to handle 1kw+ power after tuning all day long. I’m looking forward to getting the KAT500 when it becomes available. According to Eric, the price will be competitive with other vendors’ models in the same Power Range (I actually mentioned a pretty tight price range and he concurred, but I should allow him or Wayne to announce, since that information was gained in a private conversation and things are always subject to change when you’re 3-5 months out from product availability). The KAT500 is in engineering test now and they’re still “tuning” the firmware (pun intended), although much of the logic and algorithms have been taken from the time-proven KAT100 and other tuners they’ve been manufacturing for years now.

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Next week – we’ll talk about the new upgrades to the P3 PanAdapter – these will rock your world, if you have a P3, or if you are contemplating the purchase of a P3. And remember, the P3 works with ANY radio IF frequency (you specify).. it can also work as a Spectrum Analyzer (if you know the secret.. :D )

 

D-STAR Equipment for Sale

Our friend Jay is selling some of his DSTAR equipment which he rarely uses. All of the equipment is listed on eBay. Here’s a listing of the items for sale:

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I am selling my ICOM IC-80AD handheld D-STAR radio and DV Access Point Dongle via auction on eBay
Here are the links to each item:
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1.   ICOM IC-80AD handheld radio     eBay Item # 130562992138       http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130562992138&ssPageName=STRK:MESELX:IT#ht_2969wt_1139
Opening bid $399.99 and includes HM-83 ear microphone.  Will deliver for free to hams in the NE Florida area, especially Jacksonville and Gainesville metro areas.  Other areas to be negotiated.
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2.   DV Access Point Dongle       eBay Item # 130562995305       http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130562995305&ssPageName=STRK:MESELX:IT#ht_500wt_1361
Opening bid $199.99

 

DSTAR Rag-Chew Net – Cancelled for tonight

Eddie wanted to convey to all that he has a late work commitment for him. Unless there are others willing to host the Net, it will be CANCELLED for tonight. Attendance appears to be waning and there is consideration that perhaps interest in the net is also fading – if so, he will consider canceling the net altogether. Please send any comments – for, or against continuing for all to see, or email Eddie privately at KJ4LRB@ARRL.NET