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21
Morse Code / First Time Using a Vibroplex Bug.
« Last post by gil on December 06, 2017, 05:14:50 AM »

Gil.
22
Radio Reviews, Questions and Comments. / Re: KX2 First Impressions.
« Last post by Jon_Garfio on December 03, 2017, 03:12:15 PM »
CockpitBob de RadioRay  BT

For me, zero question, go for the KX2.  It has a SUPERB receiver for all of my HF uses: ham, SWL and even for monitoring the HF marine activities.  The transmitter - at ten Watts maximum - is more than enough for most CW and much digital.  SSB reports, on HF nets, using the INTERNAL micropohone have all been quite good - with the receiving end being amazed that I was ten Watts SSB and not using an external mic.  On CW, I do not know that it can be beat - ounce for ounce.

I REALLY recommend the internal antenna coupler, because that allows you to use almost anything as an antenna for field expedient comms (as you mentioned) without the additional cables, power and connector requirements, which are all vectors for damage in all but ham shack environments: I call that "BOOT BAIT" and usually ends badly.  You can always use external gadgets if you chooce, by by-passing the internal ATU using a simple command in the menu.

The internal batteries are great and make this a 'single box solution'.  I have two Elecraft internal batteries and one off-brand, all of which charge using the Elecraft charger.  Yes, there are after market chargers, and they might be as good, but I TRUST Elecraft engineering for the long term reliability far more than Ebay 'discount' chargers. (buy once and cry once).  As a supplement, I have a LiFePo2 4.5 A/H pack from Bioenno that can charge from almost any "12v" solar panel, due to the INTERNAL Battery protection circuit in the battery cover that protects against over and under voltage.  Yes, whenever possible, I use the Bioenno charger, but it's nice to know that, should I NEED to charge directly from my small solar panel - unregulated- I have the ability to do it, though more carefully. I have solar/deep cycle with AC pure sinewave inverter in the camper-van, so can recharge anywhere I am parked and be good for many weeks of skeds, or several days of continuous hobby hamming- being less mobile than I used to be ;-) the van is my 'camping' these days.

Mine is in a Sigg aluminum case along with essential accessories, (click on attachment) lined with scrap conductive foam.  As a complete system, this Sigg case goes into a mid-small sized Pelican for all accessories, including chargers, straight key, antenna kit, a third LiPo battery and the Bioenno pack.  This means, impact, environmental and Faraday protection in something with about the same cubic displacement as this smallish Pelican case. Naturally, you don't need all of this for backpacking or for a few days in the woods - you can pare it down to the Sigg case and wire.  However, this is a ONE-GRAB -SOLUTION to HF communications, so I keep it packed that way. 



The Pelican outer case means that even if I tossed it overboard, I could use it once retrieved - no problem.

Remember, when the external battery pack is connected, you operate from IT automatically, unless it's voltage drops below the internal pack.  Save the internal pack as your 'electron lifeboat' in case you're down to the last ability to operate.

>>> Remember too, that this radio will operate CW, voice, PSK/RTTY with NO ACCESSORIES. You can send/receive PSK31/RTTY using the paddles and the display: no computer needed to communicate with the 'Morse Impaired'.  haha aha haaaa

My KX2 is my dream radio. 2 meters should be separate, so that you can listen to tactical/area radio-comms, while operating HF at the same time.



The KX2 is for people who give-a-dit.
BT

>RadioRay  ..._  ._
Ray, great, great info.  Thanks!

 I'm having a hard time coping with the idea of having about $1,000 tied up in a little box that fits in the palm of my hand LOL.

The KX2 has been on my wish list for some months now , but the quote from cockpitbob, sums up my reservations exactly.
I ask my self the question,  do I realy need this radio or is it just a wish for another shiny toy ?

Like my KX1 I have had to put it into a Pelican case, because of its fragile construction, and non water resistance ,for rugged use in the field. I would have to do the same with the KX2 !!!

I have owned an FT 817 for 3 years, use it with a couple of 7Ah gel batteries , one charge gives a couple of hours use if transmitting and 4 hrs if just listening.

Two things I do not like about the radio, first, its not a great CW platform, I have the accessory filters fitted, but still the bandwidth is too big to cut out the QRM from nearby stations, making copy difficult most of the time.
My two Elecraft radios are perfect for CW work which is the reason for considering a new KX2 but for pease of mind for rugged use in the field , maybe I should search for a K1.

My sleepness nights continue, until I can make the decision !!

73 Steve
You got the right.

I bought past may a 817ND, plus cw filter 500 Hz and there is not a got rig for cw.

I just sell It and I am thinking about a Elecraft or buy a QRO base rig.

The only doubt about kx2 that I have is the quality if the dial encoder, the kx3's encoder is the same that K3.

What a pitty that I live un Spain and I must pay duty fees for EEUU products.



Enviado desde mi Redmi Note 4 mediante Tapatalk

23
Military Radios / Pedestrian Mobile Radio With The PRC-320.
« Last post by gil on November 27, 2017, 01:57:09 PM »

Gil.
24
Radio Reviews, Questions and Comments. / AnyTone Dual band USB port
« Last post by htfiremedic on November 26, 2017, 05:06:20 PM »
Does anyone know what the USB port on the head of the AnyTone Dualband is used for?  I thought maybe programming, but it won’t recognize the radio. 


Sent from my iPhone using Tapatalk
25
Technical Corner / Re: Armored BitX40.
« Last post by Andywragg on November 25, 2017, 02:11:32 PM »
Well looking at the circuit schematic, if you aren't going to use the supplied 10K pot to tune the VFO, then pins A0-A3 and A6 and A7 that are tracked to the CONTROLS header will be unused.

On the OSCILLATORS Header there are a number of pins unassigned already, D2 to D7 this should give you enough pins to map using the schema that Cockpitbob came up with.

26
Technical Corner / Re: Armored BitX40.
« Last post by gil on November 22, 2017, 01:22:34 PM »
Hi, no, I haven't gotten that far...

Gil.
27
Technical Corner / Re: Armored BitX40.
« Last post by Andywragg on November 22, 2017, 07:54:52 AM »
Hi Gil, Hope you are well,

Have you figured out what size arduino you need yet, to accommodate the keypad IO connectivity?


Best regards

Andy
28
Technical Corner / The Weber Soda Pop Morse Code Radio, Boxing Up & Contacts.
« Last post by gil on November 21, 2017, 02:25:04 AM »

Gil.
29
Batteries & Solar / Re: MY CB GO BOX
« Last post by cockpitbob on November 20, 2017, 07:52:40 PM »
At a simple level I knew having different polarizations reduces reception, but I never knew any numbers.  Over at antenna-theory.com I found this little gem:  http://www.antenna-theory.com/basics/polarization.php

Quote
In general, for two linearly polarized antennas that are rotated from each other by an angle , the power loss due to this polarization mismatch will be described by the Polarization Loss Factor (PLF):
 
Polarization Loss Factor

Hence, if both antennas have the same polarization, the angle between their radiated E-fields is zero and there is no power loss due to polarization mismatch. If one antenna is vertically polarized and the other is horizontally polarized, the angle is 90 degrees and no power will be transferred.

So now I have a rule of thumb and numbers I can work with.  I love numbers ::) .  I think the equation falls apart around 90degrees because it predicts zero, but in the real world, the polarizations are probably imperfect so even if the antennas were 90.00deg off, some will get through. 

But here's my big take-away.  At 45deg the power transfer is 50%.  That's only 1/2 an S-unit.  You could cant your 4-element Yagi 45deg and its 8dB of gain would only drop to 5dB gain.  You could do fine talking to both repeaters and SSB operators without having to fuss with the antenna.
30
Batteries & Solar / Re: MY CB GO BOX
« Last post by gil on November 20, 2017, 05:57:28 PM »
Quote
I will keep you posted!

Please do, thanks!

Gil.
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