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Re: LF: Re: LF/MF X-Band Request

To: <[email protected]>
Subject: Re: LF: Re: LF/MF X-Band Request
From: "mal hamilton" <[email protected]>
Date: Thu, 22 Dec 2011 12:25:46 -0000
References: <30861193.35411.1324494385252.JavaMail.www@wwinf8214> <000401ccc018$6efdb2d0$0401a8c0@xphd97xgq27nyf> <000e01ccc01b$d9d8dd20$0401a8c0@xphd97xgq27nyf> <29523937.28914.1324501254659.JavaMail.www@wwinf8301> <[email protected]> <301952.39427.1324535683850.JavaMail.www@wwinf8301> <13421988.59017.1324541453448.JavaMail.www@wwinf8211> <000f01ccc085$db547370$0401a8c0@xphd97xgq27nyf> <17963500.64012.1324544889275.JavaMail.www@wwinf8210> <002701ccc093$214c3630$0401a8c0@xphd97xgq27nyf> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Yes John
A 2 metre sq loop or larger preferably optimised for the freq of interest is
a good bet or a resonated long wire for LF/MF.
Pocket size antennas are fine for BC reception but for weak amateur CW
signals somewhat suspect.
g3kev


----- Original Message -----
From: "John Rabson" <[email protected]>
To: <[email protected]>
Sent: Thursday, December 22, 2011 11:02 AM
Subject: Re: LF: Re: LF/MF X-Band Request


Ben,

On receive it is the SNR that matters.  It is a good idea to have a loop
(preferably rotatable) as well as a long wire, so you can choose which gives
better reception.

I have found a 2x 2 metre air-cored loop very effective for receive on 137.

73
John F5VLF

On 22 Dec 2011, at 11:19CET, mal hamilton wrote:

> Hi Ben
> RX antennas seem to be the problem for most. A very effective antenna is a
> piece of insulated wire as long and as high as possible resonated for the
> frequency of interest and a good sensitive RX. All other types of small
> antennas ie ferrite rods, micro probes, etc are alright for receiving
> broadcast high power stations or amateur QRSS acty but poor for CW
> reception.
> I have noticed EU stn on LF can only work their neighbours using QRS
because
> of poor RX antennas, not enough sensitivity for CW.
> Sending out a Beacon is the easy part but conducting a cw QSO is a
different
> ball game.
> Hope you get yours fixed
> mal/g3kev
>
>
> ----- Original Message -----
> From: "manginbenoit.pro" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, December 22, 2011 9:08 AM
> Subject: Re:LF: Re: LF/MF X-Band Request
>
>
> GM Mal,
>
>
> That's actually the case. RX problem still here. I heard a signal in the
> noise, tried
> to dig it out, but did not success.
>
> Your signal should not be so hard to copy from this QTH.
>
> Now QRT too, trying to solve the thing.
>
> TNX trying. I'll post later on abt problem solving and back on trafic.
>
> de F8GRY/Ben
>
>
>> Message du 22/12/11 09:53
>> De : "mal hamilton"
>> A : [email protected]
>> Copie à :
>> Objet : LF: Re: LF/MF X-Band Request
>>
>> Om
>> You seem to be on BEACON MODE and not listening.
>> I have called you but you are not responding or your RX/ANTENNA is not
>> working
>> Now QRT here
>> de G3KEV
>>
>> ----- Original Message -----
>> From: "manginbenoit.pro"
>> To:
>> Cc: "rcf5kmb googlegroups com"
>> Sent: Thursday, December 22, 2011 8:10 AM
>> Subject: LF: LF/MF X-Band Request
>>
>>
>> GM All,
>>
>> Starting CQing X-Band on 7022, QSX 136.500, seems the SDR is in better
>> health now.
>>
>> de F8GRY/Ben
>>
>> Une messagerie gratuite, garantie à vie et des services en plus, ça vous
>> tente ?
>> Je crée ma boîte mail www.laposte.net
>>
>>
>>
>>
>
> Une messagerie gratuite, garantie à vie et des services en plus, ça vous
> tente ?
> Je crée ma boîte mail www.laposte.net
>
>
>
>





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