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eHam Forums / Company Reviews / Where's the Built-in TV tuner in the Icom 7000?
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on: June 11, 2008, 04:29:43 PM
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It does have a analog TV tuner built in, I have a 7000. The other poster is right about comapring to the 706, similarities are only size and being close to the same power...that's about it. The 7000 is far advanced over the 706 in the reciever, Dual DSP(Real I.F. DSP!!), menu use, RTTY decoder, screen and many other things...
73, Chuck
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eHam Forums / Antennas and Towers and more / Bracketing Rohn 25 tower to brick home
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on: April 12, 2008, 03:28:23 PM
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Tom, Check out the pics of my tower on QRZ.com
I have 40' of Rohn25 and a SteppIR on top. You will have NO problem with your smaller size beam. I would recommend bracketing as close to the roofline as possible as it will give the tower the most strength.
--Chuck KB3MMX
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eHam Forums / Amplifiers / RF Concepts 2-23 Final transister???
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on: March 02, 2008, 04:13:29 PM
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Does anyone know what Final transister is used in a RF Concepts 2-23 amplifier? I have a badly damaged unit to be repaired that the number is not readable off the part currently inside. I am also looking to replace the T/R relay in the unit if anyone has info on that unit as well....
Thanks a bunch!!
---Chuck KB3MMX
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eHam Forums / Amplifiers / AL-572 power rating for RTTY
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on: February 04, 2008, 04:46:38 PM
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I was curious where the AL-572 is rated(power wise) for continous duty modes like RTTY, MMSSTV, etc......?
I see the manual lists the tubes as being rated for 600 watts continous carrier but I generally have ran my amp between 300-400 watts on RTTY or MMSSTV. The tubes sure do get a nice glow to them even at that level!
Thanks, Chuck--KB3MMX
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eHam Forums / Company Reviews / What's up with Kenwood?
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on: January 25, 2008, 02:32:00 PM
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The lack of new radios only says that generally what they have works.... and works quite well. The 570 is a old but very good radio....however it was finally time to send it down the line.
Kenwood is quite different from "other" MFG's .....that seem to produce a new rig every month and still can't get things right no matter what they do....
Hey, If it works, why change it out immediately or offer dozens of new rigs all the time that will be discontinued in short order..?
---Chuck
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eHam Forums / Lost Hams / W2CKS--Chris Singh??
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on: January 25, 2008, 11:36:52 AM
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Anyone know if Chris has passed or does he have a different address than what is listed in the database. I tried to send a QSL and it was returned. I tried the listed email address on QRZ to contact him but it wasn't in service.
Thanks!
---Chuck KB3MMX
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eHam Forums / Mobile Ham / HF Noise from a diesel engine.
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on: January 25, 2008, 10:40:47 AM
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This is the electrical noise coming from the HEUI fuel injection solenoids used on the International T444E "powerstroke" engines. Alan has some great info on his site to combat noise, etc..
---Chuck KB3MMX
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eHam Forums / Misc / IDIOM PRESS out of business??????
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on: January 25, 2008, 10:24:14 AM
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Thanks Jim
Do you have a direct link or could you cut/paste the article. I searched and there are about 50 reviews or better regarding the Idiom Press company....
Thanks a bunch!
----Chuck
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eHam Forums / Misc / laws for id
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on: January 24, 2008, 04:31:57 PM
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RIGHT FROM PART 97 Notice it must be at the end of "communications" not at the end of the sentence.
===================================
(a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its transmitting channel at the end of each communication, and at least every ten minutes during a communication, for the purpose of clearly making the source of the transmissions from the station known to those receiving the transmissions. No station may transmit unidentified communications or signals, or transmit as the station call sign, any call sign not authorized to the station.
(b) The call sign must be transmitted with an emission authorized for the transmitting channel in one of the following ways:
(1) By a CW emission. When keyed by an automatic device used only for identification, the speed must not exceed 20 words per minute; (2) By a phone emission in the English language. Use of a phonetic alphabet as an aid for correct station identification is encouraged;
(3) By a RTTY emission using a specified digital code when all or part of the communications are transmitted by a RTTY or data emission;
(4) By an image emission conforming to the applicable transmission standards, either color or monochrome, of §73.682(a) of the FCC Rules when all or part of the communications are transmitted in the same image emission.
(c) One or more indicators may be included with the call sign. Each indicator must be separated from the call sign by the slant mark (/) or by any suitable word that denotes the slant mark. If an indicator is self-assigned, it must be included before, after, or both before and after, the call sign. No self-assigned indicator may conflict with any other indicator specified by the FCC Rules or with any prefix assigned to another country.
(d) When transmitting in conjunction with an event of special significance, a station may substitute for its assigned call sign a special event call sign as shown for that station for that period of time on the common data base coordinated, maintained and disseminated by the special event call sign data base coordinators. Additionally, the station must transmit its assigned call sign at least once per hour during such transmissions.
(e) When the operator license class held by the control operator exceeds that of the station licensee, an indicator consisting of the call sign assigned to the control operator's station must be included after the call sign.
(f) When the control operator who is exercising the rights and privileges authorized by §97.9(b) of this Part, an indicator must be included after the call sign as follows:
(1) For a control operator who has requested a license modification from Novice to Technician Class: KT; (2) For a control operator who has requested a license modification from Novice, Technician or Technician Plus Class to General Class: AG;
(3) For a control operator who has requested a license modification from Novice, Technician, Technician Plus, General, or Advanced Class operator to Amateur Extra Class: AE.
(g) When the station is transmitting under the authority of §97.107 of this part, an indicator consisting of the appropriate letter-numeral designating the station location must be included before the call sign that was issued to the station by the country granting the license. For an amateur service license granted by the Government of Canada, however, the indicator must be included after the call sign. At least once during each intercommunication, the identification announcement must include the geographical location as nearly as possible by city and state, commonwealth or possession.
-====================================
Hope this helps as it is actually a common misconception that the callsign must be the last thing out of your mouth, as it clearly is not the case according to the rules.
73,
KB3MMX
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eHam Forums / Misc / IDIOM PRESS out of business??????
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on: January 24, 2008, 04:22:28 PM
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Does anyone know if IDIOM PRESS is out of business? I ordered a rotorcard weeks ago, have never seen the product and can't get a single phone call returned from after leaving several telephone messages and emails!?!?!?!
I'm ready to call the credit card company about this soon if I dont hear from them....
Anyone have any info?
Thanks!
---Chuck
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eHam Forums / Station Building / 2m Antenna height and distance
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on: January 21, 2008, 05:14:53 AM
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Just try the calculator, and you'll see that you can go longer than 75' without huge losses.Where you really start seein the spread is on 70Cm with length.
Also, check losses of LMR600 VS Price and you'll find that new to new it beats the tar out of Heliax "hard line", up to 7/8". Flat out, for the price the LMR smokes the hard line. If you want to compare used hard line to LMR, the LMR will still be cheaper and you can get some HUGE LMR cables, easily forthe price of ultra expensive hard line. Sure, you can buy either one used for much less but the LMR will always cost less. **I'm not knocking the performance of larger diameter hard line at all, but it isn't worth the money unless... you are using 7/8" or bigger. The 1/2" and 3/8" are a total waste of money compared to LMR cables.... You are totally right about some people using RG8X, and I know some people locally that do so and they will never know what they are missing because it is all lost in the coax before they could ever hear it! Sometimes trying to explain that is like beating your head against a wall...LOL
One thing is for sure, if you go the $$, go for the biggest and least lossy cable you can put up, LOSS is the ENEMY on any band!!
Take Care, Chuck KB3MMX
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eHam Forums / Station Building / 2m Antenna height and distance
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on: January 20, 2008, 03:33:51 PM
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Go High and go Far as they say. 10' AGL is pretty low for VHF and UHF useage. I do disagree with the statement that the limit for LMR400 be 75' , this is untrue. You can make use of LMR400 up to twice that distance without significant losses. If you want to see some extreme losses, check out RG8U and also worse yet, look at RG8X, it is horrible. Anyway, If you need less loss than LMR400, then you should look at the LMR600 or Andrews Cinta 600 cables. They are extremely competitive to "Hard Line" in loss and a fraction of the cost! Try running some loss calculatins and you'll see what I mean. http://www.ocarc.ca/coax.htm73, Chuck
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