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why don't they make HTs that can do SSB?

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  #17  
Old 07-10-2011, 11:50 AM
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Quote:
Originally Posted by eagle1911 View Post
I'm sitting here looking at my Android phone and as I am I'm thinking that there's really no reason that we don't have incredible full-featured multimode handheld radios other than supply and demand.
Sure, you now have complete radio on chip, such as freescale MC13260.
But you're never going to shrink an antenna for HF bands and still have it efficient.

The RF chip in smartphones operate on UHF, where antennas are small.
The bandwidth of signal is relatively wide, so not as much concern for frequency drift as you would need if you were running SSB.
SSB makes the most demanding application for frequency stability of crystal oscillators. Those crystals are physically large and suck power.

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Old 07-10-2011, 11:57 AM
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You'd still need some sort of external antenna.. for VHF and up you'd just need a rubber duck, but for HF you'd need something real, like a G5RV, Dipole, screwdriver, or whatever field gear a typical ham has. The same applies to the 817 too. There's no reason why we can't have SSB/CW/AM/FM/DIGITAL in a similar package as a smartphone. With software-defined radio technology the feature set could be very impressive in a tiny package. It might have to be slightly larger than a smartphone, sure, but not by much. I like the Elecraft above.. it's pretty small, but it would be awesome with a touch display instead of all the knobs. With the processing power afforded by smartphone processors advanced features like detailed spectrum anaysis, antenna analysis, filtering, DSP can all be software emulated.

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Old 07-13-2011, 09:31 AM
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6 meters -- are contacts usually on SSB or FM? The VX-8R only supports FM 6M, correct? Is this one reason I am unable to make 6 meter contacts? I've had the VX-8R for a couple of years now and have yet to make a single contact.

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Old 07-14-2011, 11:59 AM
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i've not used 6m on it for anything but repeaters, which of course are FM.

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Old 07-14-2011, 12:16 PM
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Quote:
Originally Posted by kc0zps View Post
6 meters -- are contacts usually on SSB or FM? The VX-8R only supports FM 6M, correct? Is this one reason I am unable to make 6 meter contacts? I've had the VX-8R for a couple of years now and have yet to make a single contact.

Pretty much all DX contacts on 6m are indeed on SSB however when the band opens you can also hear repeaters from hundreds of miles away, even half way across the country. Using an HT however your best bet would be to see if your local repeaters are picking up any DX and respond that way although it is possible to hit a far off repeater from an HT. The big problem is that the antennas on 6m HT's are very poor performers on that band.
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  #22  
Old 07-14-2011, 04:27 PM
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Quote:
Originally Posted by kc0zps View Post
6 meters -- are contacts usually on SSB or FM? The VX-8R only supports FM 6M, correct? Is this one reason I am unable to make 6 meter contacts? I've had the VX-8R for a couple of years now and have yet to make a single contact.
You can try and listen to 52.525 FM simplex with that VX8, you may hear some FM stations, I have made contacts there. I think people forget FM for 6 meter contacts. What you have to understand, when 6 meter is open, it does not matter what mode, antenna polarity is somewhat important though.

SSB is usually horizontal while FM is vertical.

If you make yourself a vertical 6 meter external antenna you may have more luck. Now when I made FM contacts on 6 meter I was using my 817ND and an Outbacker antenna. Give it a try
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Last edited by AudioShockwav; 07-18-2011 at 01:39 PM.

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  #23  
Old 07-15-2011, 01:07 PM
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Don't know if it's been posted here, but I just ran across this little gem:

Amateur Radio 10 Meter Hand Held Transceiver AM/FM/SSB | eBay

Kinda pricey, but it does SSB.. not a VHF HT though.

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  #24  
Old 07-18-2011, 01:07 PM
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Good it does SSB but I don't see Sub tones listed for 10m FM repeaters ?

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6 meter, elecraft, f.m., h.t., handheld, kx3, qrp, radio, ssb
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