Subject: | |
From: | |
Reply To: | |
Date: | Sun, 13 Feb 2005 21:57:08 -0000 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Hi,
How are you carrying out the measurements (introducing a tone at the
mic input?
Are you measuring peak or mean power? Most meters will not give a
true reading on ssb unless you have a peak hold.
What about the power supply? Do you have a long lead causing voltage
drop when current is being drawn? It the supply providing a stable 13.8
volts?
Also, are you measuring in to a 50 ohm load? I believe the older gear is
less fussy about swr than the new.
On 13 Feb 2005 at 12:50, Howard Kaufman wrote:
> Noticed a disturbing thing this morning. Compared the tune out put with
> the ssb out put on my ts-480. It seemed a lot lower on SSB. So I made the
> same test using the Omni d. Same marks if not a bit lower on the
Omni, but
> much higher on SSB using the Omni. Is this a charictoristic of newer
> radios to make cleaner audio? I don't know the difference in watts,
just
> listening on my tuning oscellator. I figure running 100 watts, you need
> every watt you can get on phone. This is my first modern radio. Well
> actually I have had modern radios before, but modern then is thirty
years
> ago now.
Keith
- -
Keith Barrett
gw4nby
Bridgend
South Wales
|
|
|