How far will Saber II go out of band??

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KG6EAQ
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Post by KG6EAQ »

I read that it will go about +/-5mhz out of band. How does it act in those 5mhz? Does it do ok, or does it drop off? I run across the 148-174 Sabers all the time, and want to program 2m ham freq's into it.

Thanks
-Robert F.
radioEd
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Post by radioEd »

On 2002-01-27 03:19, KG6EAQ wrote:
I read that it will go about +/-5mhz out of band. How does it act in those 5mhz? Does it do ok, or does it drop off? I run across the 148-174 Sabers all the time, and want to program 2m ham freq's into it.

Thanks
-Robert F.
Most in general will go 1Mhz. appx.
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Keygun
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Post by Keygun »

On 2002-01-27 03:19, KG6EAQ wrote:
I read that it will go about +/-5mhz out of band. How does it act in those 5mhz? Does it do ok, or does it drop off? I run across the 148-174 Sabers all the time, and want to program 2m ham freq's into it.

Thanks
-Robert F.
If you want FULL specs, don`t go more than 1-2 Mhz behind the official bandlimits. With degraded specs you can use the radios 2-8 Mhz (depending on the frequency-band) behind their rated bandsplits. I`m using some UHF models (440-470Mhz) for HAM-radio (here in DL the repeater inputs are on 431Mhz - no problem for the PLL). Only a few milliwatts less power on 431Mhz. RX is acceptable down to 434Mhz. VHF models (146-174Mhz or 146-162Mhz split) work OK on 144Mhz.

Keygun
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Elroy Jetson
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Post by Elroy Jetson »

That will vary from radio to radio and module to module. I've seen (and owned) a VHF Saber that delivered a "serviceable" level of performance more than 5 MHz out of its rated bandsplit, and it locked up on channel reliably a full TEN MHz out of band, both above and below the normal bandsplit. (Special widebanded RSS) That was an unusally good radio. But I didn't get a chance to spec it out on a monitor.

You should be able to get 2 MHz out of any band with performance that meets or approaches specs, on any Saber.


Elroy
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KG6EAQ
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Post by KG6EAQ »

Thanks, 2Mhz will help quite a bit, hopefully i'll get lucky though and get a wider one!

-Robert F.
mike m
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Post by mike m »

I've seen several saber IIs in various splits and flavors that were programmed with the version 6 special wideband RSS, used by an unnamed Govt. agency, that did 142 to 184 MHz with no measureable power or sens dropoff and with no internal mods, but interestingly I was told that even though they all did 142 to 184 without a mod it was a major bear to make them go below 142MHz for the government required use down to 138MHz, which of course wouldn't be a problem in your case. It's just that darn spcl version of rss 6 that you would need to get it to work down to 144.
Mike
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Elroy Jetson
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Post by Elroy Jetson »

I'd REALLY like to know what that 'unnamed gov't agency' was that used that mod of the Saber version 6 RSS. If you wanted to send it to me via private messages, or post it here, I'd appreciate it.

Elroy
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