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From: Laurence KL1X <hellozerohellozero@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Tue, 11 Sep 2007 18:36:10 -0800
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Subject: LF: receivers
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Mike - both on 137 and 500 the Icom R75 is really rather good both in sensi=
tivity and selectivity and is still my receiver of choice. With or without =
the TXCO its reasonably stable down at LF - I still like the TXCO option wh=
en Im in the tropics or polar climes
=20
=20
The TS870S does have the attenuator inserted just LF of 500KHz but given my=
 s/n and drive levels from the antennae systems it is as good as the R75's =
except no 1Hz readout. On 137KHz it is less sensitive but at my rx drive le=
vels outside noise levels are higher and it doesnt make a hoot of differenc=
e.
=20
I still (much) prefer the TS870 over the TS850 both in noise blanking and r=
eceiver performance on large antennae - honest its given clean copy on Argo=
 when the 850 didnt on an equally powered shared port running side by side =
on ZL tests.
=20
The SDR IQ is pretty good too but Im still getting to grips with the ins an=
d outs of its performance and its really too soon for me to comment. Its no=
t that stable up on HF per se - it it warms up with a around 4Hz shift in a=
bout 15 mins but once it gets there its ok - when you divide down on 500 an=
d 137Khz its fine. Ill have more experience over the next few weeks as its =
going to be the only RX Im going to use in KL7
=20
Laurence 9V1 LF about to become KL 1X/M again for a few weeks
_________________________________________________________________
Can you find the hidden words?=A0 Take a break and play Seekadoo!
http://club.live.com/seekadoo.aspx?icid=3Dseek_wlmailtextlink=

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<body class=3D'hmmessage'>Mike - both on 137 and 500 the Icom R75 is really=
 rather good both in sensitivity and selectivity and is still my receiver o=
f choice. With or without the TXCO its reasonably stable down at LF - I sti=
ll like the TXCO option when Im in the tropics or polar climes<BR>
&nbsp;<BR>
&nbsp;<BR>
The TS870S does have the attenuator inserted just LF of 500KHz but given my=
 s/n and drive levels from the antennae systems it is as good as the R75's =
except no 1Hz readout. On 137KHz it is less sensitive but at my rx drive le=
vels outside noise levels are higher and it doesnt make a hoot of differenc=
e.<BR>
&nbsp;<BR>
I still (much)&nbsp;prefer the TS870 over the TS850 both in noise blanking =
and receiver performance on large antennae - honest its given clean copy on=
 Argo when the 850 didnt on an equally powered shared port running side by =
side on ZL tests.<BR>
&nbsp;<BR>
The SDR IQ is pretty good too but Im still getting to grips with the ins an=
d outs of its performance and its really too soon for me to comment. Its no=
t that stable up on HF per se - it it warms up with a around 4Hz shift in a=
bout 15 mins but once it gets there its ok - when you divide down on 500 an=
d 137Khz its fine. Ill have more experience over the next few weeks as its =
going to be the only RX Im going to use in KL7<BR>
&nbsp;<BR>
Laurence 9V1 LF about to become KL 1X/M again for a few weeks<BR><br /><hr =
/>Can you find the hidden words?=A0 Take a break and play Seekadoo! <a href=
=3D'http://club.live.com/seekadoo.aspx?icid=3Dseek_wlmailtextlink' target=
=3D'_new'>Play now!</a></body>
</html>=

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