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Re: "Little yellow book"
I got mine from W4RT Electronics at the Dayton Hamvention. I believe it is
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available on their website (www.w4rt.com) which has on-line ordering. The price is $9.95 and well worth it IMHO. 72, Bill W4RK Nashville, TN USA ----- Original Message -----
From: <ka4lbd@...> To: <FT817@...> Sent: Thursday, May 24, 2001 3:49 PM Subject: [FT817] "Little yellow book" To W4RK regarding the little yellow book you memtioned in postingQuestions ) see
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Re: receive above 154 mHZ
Wouldn't it be simpler just to use a dedicated NOAA receiver?
Julian, G4ILO --- In FT817@y..., David McMillan <davemc@E...> wrote: purchase. If some people have suggestions on where to start making a Rx downconverter it be willing to try and report. If other people want to try orconspire in such a thing lets start a new thread on this list. |
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Re: MP-1 Mobile/Portable/Pedestrian SuperAntenna for FT-817
But this goes completely against the accepted advice for installing a
vertical in a home or mobile situation. You should always use the best possible ground. A couple of people on the Elecraft list have both said they got much better results coupling the antenna ground to some corrugated iron or similar. Not very portable, admittedly, but it does demonstrate that to get good results from a high Q antenna you need a good ground system, not a poor one. The system you are describing sounds to me like you are using the MP- 1 and its counterpoise like two halves of a dipole, with one half trailing on the ground. That may be the compromise you have to adopt if you insist on being able to move along while operating but I have no desire to do that. I would much prefer to be able to have an effective ground plane system so that all the RF energy goes into the vertical element. Unfortunately, it seems that more than 4 10ft radials are necessary to achieve that. Nevertheless, when I bought the MP-1 I thought I was buying a vertical, not half a wonky dipole. Julian, G4ILO --- In FT817@y..., "KQ6XA" <xtalradio@a...> wrote: Yes. A proper portable or pedestrian counterpoise contributesequally to the radiation of a whip. Therefore, it is "hot".you can replace the antenna with a 50 ohm resistor :-) |
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Re: QRP ARCI information
I'd like to add that I have purchased the two most recent issues of the QRP
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ARCI Quarterly Magazine and was very surprised to find such an extremely high level of professionalism shown in the diversity of topics and editorial standards of content and appearance. The in-depth review of the 817 was extremely well done. Lots of excellent technical articles, plus coverage of QRP contests, and a nice article about QRP in the UK written by a G-ham. The "International" in ARCI seems to be for real. QRP-related advertising, calendar of events, and it goes on and on. The QRP ARCI booth at the Dayton Hamvention was also well done and usually had a large crowd of enthusiasists. My membership application is in the mail. 72, Bill W4RK Nashville, TN USA ----- Original Message -----
From: <w4qo@...> To: <FT817@...> Sent: Thursday, May 24, 2001 3:36 PM Subject: [FT817] QRP ARCI information Folks,Questions ) see
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Re: receive above 154 mHZ
Dave B
I too would have liked the extra coverage for wx, but, as a substitute I can almost always find a local FM broadcast station from where ever I've been and get local wx.
Dave From: "Pres Waterman" <pres@...>_________________________________________________________________ Get your FREE download of MSN Explorer at |
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Re: amplifier
Well, I can tell you, because I have tried it, that my Ten-Tec Hercules II
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solid state linear will produce about 150 watts output when driven by the FT-817. So far I have used it only once to snag one DX QSO in a heavy pile up on 20 SSB. Much to my own surprise, 5 watts is usually more than sufficient and I have made a few DX QSO's at 500MW! I never thought I would be a QRP'er but the FT-817 has turned my head :-) The specs say that the Herc II requires 50 watts for full output, but in fact it's less. 35-40 (depending on the band) watts runs it full tilt at about 550 watts output. Given the 50 watt minimum rule, I'm not sure how Ten-Tec got away with that. Maybe because it's not a 1500 watt linear? ---- 73, Rich - W3ZJ -----Original Message-----
From: w4wb@... [mailto:w4wb@...] Sent: Thursday, May 24, 2001 7:42 AM To: FT817@... Subject: [FT817] Re: amplifier Hi Jeffrey, The applicable rules are 97.315 and 97.317 plus a few referred rules. In short, 97.317 says that an EXTERNAL RF HF amp must require NLT 50 W drive to produce its full rated output. You may use such an amp and drive it with the 817, e.g., if you have a Yaesu Quadra, then the output will be 50 W. (Of course the Quadra is $4,000.) In the US, a docking station would be considered an external amp. Not allowed. You may build one amp per year, but not from a kit. If you find an amp to buy, it is OK to buy, own and operate (as long as you comply with the emission rules) regardless of the source. For example, THP can not legally sell its amp in the US or ship it to the US, but it OK for you to buy it and own it. And yes, all of these oddities are the result of the CB problem of the late 70's. Don't look to Yaesu for an expanded top cover or such. The thermal design of the 817 simply would not support the added dissipation. The 817 was designed as a QRP rig (with the capability to interface to an external amp -- see the ACC jack legend on the schematic). I note that these rules apply in the US and not necessarily in other countries. FWIW, I estimate that presently about 40% of the FT-817 are owned by non-US hams. 72 de Barry - W4WB --- In FT817@y..., "Jeffrey Steinberg" <jeffreys@c...> wrote: > I think this is illegal, per FCC. A radio has to load an amp with a minimum > of 50 watts. Its a rule > that came out, if I remember right, in the 1970's so that CB linears would > be harder to come by. > > My friend, K2ACB asked Yaesu about this (apparently there used to be a > similar Yaesu amp a number > of years back) and the guy at Dayton gave the reason above. > > Don't hold your breath in the U.S. > > Dave, not sure where you are, though. > > --jeffrey steinberg, K2MIT > -----Original Message----- > From: Dave B [mailto:dave756pro@h...] > Sent: Wednesday, May 23, 2001 8:13 AM > To: FT817@y... > Subject: [FT817] amplifier > > > Anyone have ideas on a docking station to be released by Yaesu with > amplifier? > > Dave > _________________________________________________________________ > Get your FREE download of MSN Explorer at > > > Yahoo! Groups Sponsor > www. > > > > > > > To unsubscribe from this group, send an email to: > FT817-unsubscribe@... and for a great FAQ ( Frequently Asked > Questions ) see > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > Yahoo! Groups Sponsor www. To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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QRP ARCI information
Folks,
I have been very impressed with the 817 list. This is what ham radio is all about IMHO. I did however want to mention a very closely allied group that you may or may not be familiar with - the QRP Amateur Radio Club International. We have been in existence for 40 years now and we are devoted to low power (useful in the 'field') and in homebrew (to get that weight down). In fact, we recently held our sixth Four Days in May conference in conjunction with the Dayton Hamvention. There were '817s all over the motel! We had about 400 folks attend some part of the 4 days of activities and this was 10 miles from the hamvention! We publish a quarterly magazine which I feel you would enjoy. It runs 68 pages per quarter in 8.5x11 format. We have many other activities/awards/fun in our international club with almost 11,000 members now. We'd like to invite you to be one of our members if you're not already. Come visit our guest entrance web page at: Then from there you can browse around the site. I'd like to see some '817 List' news in our magazine. If you have some, please feel free to send to our editor at: craigwb@... If I may answer any questions, please let me know or post some to the list. I'm sure others who are members of QRP ARCI will be glad to answer. Subscription rates/PayPal/who to send to/etc are all over the web site. 72, -- Jim Stafford, W4QO@... 770-993-9500 President - QRP ARCI |
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Re: Fw: MP-1
Interesting point. Anyone know exactly what the Power Output setting
of the meter is actually reading? <snip> Hmm. I wonder how faithful an indication of power out this is intoa non 50 ohm load? Many indicators just work on voltage, which is not reliable with mismatched loads. |
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Re: QRP ARCI information
Pres Waterman
you can browse around the site. I'd like to see some '817 List' news I give you permission to quote whatever you read here in your magazine Thanks Pres Waterman W2PW c/o Patchogue Motors, Inc. Long Island Ford and Kia dealer GO BILLS! |
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Re: MP-1 Mobile/Portable/Pedestrian SuperAntenna for FT-817
Don W6ZO writes:
I also aggree with Bonnie that the HF Pack group may beWell, Don, I don't think either moderator Pres W2PW or co-moderator Barry W4WB would mind it a bit if we put this thread somewhere else... :-) As far as stealing members from FT817 to HFPack goes... there seems to be little risk of that... the two groups have a big percentage of members in common already. In fact, the moderators of each group are "frequent flyers" on each others groups... Bonnie KQ6XA (just another FT817 op here) |
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Re: MP-1 Mobile/Portable/Pedestrian SuperAntenna for FT-817
Pres Waterman
Don W6ZO writes:Hah! I missed this little tidbit the first time around!I also aggree with Bonnie that the HF Pack group may be Awwwww shucks, ma'am! Jus' doin' our jobs ya know Thanks Pres Waterman W2PW c/o Patchogue Motors, Inc. Long Island Ford and Kia dealer GO BILLS! |
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Re: receive above 154 mHZ
David McMillan
Lack of NOAA weather is one of my sticking points as well on purchase. If some people have suggestions on where to start making a Rx down converter it be willing to try and report. If other people want to try or conspire in such a thing lets start a new thread on this list.
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Dave- At 01:24 PM 5/24/01 -0500, you wrote:
I too would appreciate NWS capability on 162 MHz. However, from the Dayton |
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Re: receive above 154 mHZ
Pres Waterman
Lack of NOAA weather is one of my sticking points as well on purchase. Ifin such a thing lets start a new thread on this list. Yaesu, of all makers, had some sort of VHF to short-wave converter. I have one somewhere. I used it on a FT-767 to convert NOAA down to 22.475MHz on a remote base. Anyway, the idea of building a small converter with a NE-602 mixer strikes me as doable, with perhaps a 10m ( FM mode ) IF. Going from 162 to 146 seems a little risky from the image standpoint, although the LO crystal would be reasonable. But at many airports there is a weather broadcast on the AM/Aircraft band. Look for it by scanning. They give temperature, dew point, barometer readings, and of course bird warnings. Not a horrible substitute Thanks Pres Waterman W2PW c/o Patchogue Motors, Inc. Long Island Ford and Kia dealer GO BILLS! |
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Re: MP-1 Mobile/Portable/Pedestrian SuperAntenna for FT-817
Julian G4ILO wrote:
All it seems to do is make the shield of the feeder andYes. A proper portable or pedestrian counterpoise contributes equally to the radiation of a whip. Therefore, it is "hot". This is good. However, if you don't like current delivered to your counterpoise, you can replace the antenna with a 50 ohm resistor :-) Bonnie KQ6XA |
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Re: FT-817 carry case
Peter C. Abraham
Hey Everybody,
I quickly found out that there never seems to be just the "right" case since we all want something a little bit different. What am I using, for the 817 I am using the pouch... just because I like having some padded protection for it ( a personal preference ). It has holes for the mic, rear antenna, and head phone. It does not have holes for power, cw key/paddle. data cable, or bnc connector... but the flap can be pushed aside if did put an antenna on it. I plan on putting on a belt loop on it... just to be cool and to show off ... ;) For the mic and antennas ( I currently have Maldols for 40 and 20, and will be buildig dipoles for field use) I plan on getting pencil cases and putting my antennas in it with a dish towel for some friction, so that they won't keep banging into each other. When I pack my stuff ( for camping and buisness trips ) I find it easier to pack several small packages instead one big bulky package. This is what works for me, hopefully this will help some of you out too. -Peter ===== Peter C. Abraham Amateur Radio - KM5XD, ex-KB2INO Radio Network Planning Engineer for Nokia Networks WWW - - Last Updated Sept. 1999 <>< - Joshua 24:15 __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices |
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Re: receive above 154 mHZ
I too would appreciate NWS capability on 162 MHz. However, from the Dayton
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buzz, I understand that this radio was designed for the Japanese market with no thought that it would ever be sold in the USA. In fact, it was also stated that it was only through the concerted pleadings of Yaesu America staffers that this rig was even considered for the US market as an afterthought. As they say, the rest is history. Apparently Yaesu Japan was the most surprised of everyone about the success of this radio. If we would have had to wait for a re-engineering to get 162 MHz, I would rather have the 817 sooner than later. My workaround is my small HT which does a good job on all the 162 MHz freqs. 72, Bill W4RK Nashville, TN USA ----- Original Message -----
From: "Curtis, Tony" <acurtis@...> To: <FT817@...> Sent: Thursday, May 24, 2001 11:54 AM Subject: [FT817] RE: receive above 154 mHZ I never would trash this lovely little radio, but my initial reaction tofor backpacking in wilderness areas and leave out the highly-necessary 162 MHzQuestions ) see
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FT-817 carry case
Julian, G4ILO
I was in Keswick this afternoon and outside one of the outdoor gear shops
there was a bin containing some small travelbags. One looked as if it would be just the right size for the FT-817 so I bought it on spec. The bag is made of a black nylon type material and has two zipped pouches. The FT-817 fits snugly into the main pouch, while the second pouch has space enough to take the mic, or an external battery pack if you preferred. Finicky types might worry about the inside of the zip rubbing against the volume control knob and marking it, but you could always put a bit of cloth over the front before zipping it up, for extra protection. A flap folds over the second pouch which also has a zip in it, giving access to a small compartment probably meant to hold money. A wee bit wider and it could have held a spare battery case. In fact, it might hold a Yaesu one which is shrink wrapped and doesn't have the plastic frame of the dry-cell case. There's a belt loop and also a shoulder strap with detachable clip-on fasteners. Operating the radio while it is inside the case wouldn't be possible as the zip doesn't extend far enough to allow the mic to be connected with the radio in situ. So this is really something to protect the radio while it is carried around. The nice thing about this case is the price: 4. It has a logo "TRAX" and inside there is a label saying TRAX, Made in China. The bag it came in says "Travelstyle bags and accessories" and there is a part number: T2153FTN. -- Julian, G4ILO. (RSGB, ARRL) Home page: |
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Re: amplifier
I found a Pride 100 amplifer for $50 (GOOGLE search on "mobile
linear"). "80-10M Amateur Amplifier" or some such legend is silkscreened on the front panel; nominal output is 100W (not sure exactly how that's measured) for 7-8 watts in. The gent I'm buying it from says it's one of the earlier solid-state amps. Seems to use the MRF454 (which he tells me he replaced not long ago). I'm very curious to see if it has any filtering on the output. If not, I'm thinking of getting the filter kit for the power-MOSFET amp in the ARRL Handbook and using the rig's ACC band data output for an automatic switch. A'course, I'll be using an antenna "tuner" with it, so that'll also help cut down on spurious emissions. There was a Palomar amp and an Italian (RF Construzione???) amp on Ebay yesterday -- so much for Ebay's touted adherence to FCC regs. Why an amp? 'Cause the '817 is my only rig & I want QRO ability for traffic handling on 80M, and Bonnie says ya need ~20W for good NVIS results also. The '817, an ATX, a short wire dipole w/twinlead, and NorCal's BLT will go backpacking with me. FWIW on the antenna end, an untuned 20M inverted-V at about 12 ft. got 5-9 contacts from central Ohio to Florida, Minnesota, and Nebraska with NO effort. But the OM in Spain, unfortunately, couldn't hear me! ;) ('tho he did admit his antenna system was optimized for the US west coast) |
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