Mearly opening up the receiver on a radio will not cause increased
interpherence, except perhaps on the frequencies that aren't specifically
filtered on the stock receiver.
If you cut the resistors in the kenwood dual banders, to get more receive
coverage, its not going to cause poor image rejection suddenly.
I think maybe with old receivers where you had to physically change filters
and coils to increase receive coverage the image rejection may have been an
issue.
73
Colin, V A6BKX
----- Original Message -----
From: "Anthony Vece" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, January 18, 2007 6:59 AM
Subject: Re: Handihams, was: RE: exam
> Hi Lou;
>
> That's why I will never open the receive up on any radio.
>
> 73 De Anthony W2AJV
> [log in to unmask]
> ECHOLINK NODE NUMBER: 74389
>
> ----- Original Message -----=20
> From: Louis Kim Kline=20
> To: [log in to unmask]
> Sent: Wednesday, January 17, 2007 11:59 PM
> Subject: Re: [BLIND-HAMS] Handihams, was: RE: exam
>
>
> Hi Christy.
>
> One thing that I have noticed on 70 cm is that the TMG707 has a pretty =
>
> wicked image response that does cause stuff from the commercial band =
> to=20
> come through on the ham frequencies. I chalked it up to living in a =
> major=20
> city, and being only about one and a half miles from one of the major=20
> communications sites.
>
> 73, de Lou K2LKK
>
> At 06:23 PM 1/17/2007 -0600, you wrote:
> >Well, the offset wasn't the problem. I checked it, and it's set to =
> positive,
> >as it should be. So, either something's goofy or there's just none of =
> those
> >repeaters near me, but that does seem odd considering there are eight =
> 2m
> >repeaters I can at least key up, three of them I know I hit well even =
> on
> >five watts.
> >
> >I'm a bit hesitant to run the radio on 35 watts, mostly because even =
> if the
> >antenna can handle it, I'm not sure about RF exposure. It's under the =
> limit
> >for requiring measurements and the like, but I'm in the same room =
> with this
> >antenna and I'd rather be safe than not, especially with cats around =
> that
> >just looove to jump up on the filing cabinet I have it on. I know =
> that on
> >ten watts, I can't key a one of them up at all though. It's hard to =
> know if
> >I'm receiving or not as far as the repeaters since I don't know which =
> ones
> >are really active, but I do receive some out of band stuff.
> >
> >
> >-----Original Message-----
> >From: For blind ham radio operators
> >[mailto:[log in to unmask]]On Behalf Of
> >[log in to unmask]
> >Sent: Wednesday, January 17, 2007 6:00 PM
> >To: [log in to unmask]
> >Subject: Re: Handihams, was: RE: exam
> >
> >
> >Christy, 70cm is harder to hit. If you're using an antenna indoors =
> you may
> >well
> >have problems hitting the repeater. Run the rig on 35w if the =
> antenna will
> >handle the load. Also, if you're using a magmount try sitting it in =
> a
> >frying
> >pan (cast iron works well for this) to get some ground plain effect.
> >
> >Rigs like the Kenwood ts570 have a built-in antenna tuner.
> >
> >Since you have a computer you can get a serial cable to connect to =
> that 707
> >and get output if information from the radio that isn't spoken =
> normally.
> >
> >Tom
> >Tom
> >Brennan
> >KD5VIJ, CCC-A/SLP web page
> >http://titan.sfasu.edu/~g_brennantg/sonicpage.html
> >
> >
> >--
> >Internal Virus Database is out-of-date.
> >Checked by AVG Free Edition.
> >Version: 7.1.394 / Virus Database: 268.10.1/390 - Release Date: =
> 7/17/2006
> >
> >
> >--
> >Internal Virus Database is out-of-date.
> >Checked by AVG Free Edition.
> >Version: 7.1.394 / Virus Database: 268.10.1/390 - Release Date: =
> 7/17/2006
> >
> >
> >--
> >I am using the free version of SPAMfighter for private users.
> >It has removed 3027 spam emails to date.
> >Paying users do not have this message in their emails.
> >Get the free SPAMfighter here: http://www.spamfighter.com
> >
> >
> >--
> >Internal Virus Database is out-of-date.
> >Checked by AVG Free Edition.
> >Version: 7.1.394 / Virus Database: 268.10.1/390 - Release Date: =
> 7/17/2006
> >
> >
> >
> >--
> >No virus found in this incoming message.
> >Checked by AVG Free Edition.
> >Version: 7.5.432 / Virus Database: 268.16.13/634 - Release Date: =
> 1/17/2007=20
> >4:45 PM
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail: [log in to unmask]
> Work e-mail: [log in to unmask]
> Work Telephone: (585) 697-5753
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.432 / Virus Database: 268.16.13/632 - Release Date: 1/16/2007
4:36 PM
>
>
|
