[50mhz] Workman TVI-2K Low Pass Filter - any good?

[Bill W5WVO]

Yup. I run a DCI 8-pole bandpass filter built to pass 49-51 MHz. 
(http://www.dci.ca/?Section=Products&SubSection=Amateur) I had them tune it 
down a MHz from the usual default (50-52 MHz) to get the skirts even further 
away from Channel 2. It ain't cheap -- but it is built like a tank and is 
awesomely effective. Less than 2 dB insertion loss. It works fine at 400W PEP 
output, though it is "officially" rated, very conservatively, at 200W. Not 
only does it protect my receiver, it cleans up my transmitted RF profile as 
well.

Bill / W5WVO


kr7o at vhfdx.com wrote:
> Bill,
>
> You might also consider a single one of the ICE (or other) bandpass
> filters if you have a single band (or separate 6M antenna input)
> radio.  If you are only interested in 6m SSB, get the 50-50.5 MHz
> filter (ICE also has a 50-54 MHz version).  Why expose DC to daylight
> radios with RF outside where you are operating?  If you want to
> operate outside of the filters range a simple transfer relay will
> solve that problem (such as listening for TV carriers as propagation
> indicators).
> I am a fan of single band BP filters (where practical) as they are a
> necessity for me when running legal limit with multiple radios on HF
> thru 2m and antennas in close proximity, to keep unwanted out of band
> RF from degrading and/or damaging (yes, blew an HF front end once
> with a 6m yagi 10' above a tribander).
>
>
>
> At 09:28 AM 8/23/2007 -0400, jeremy-ca wrote:
>> I use both the B&W and ICE on the home and cottage stations. They
>> have excellent curves and can handle 1500W. Ive also found that the
>> high power filters have much better rejection than the cheap ones.
>>
>> Carl
>> KM1H
>>
>>
>> ----- Original Message ----- From: "Bill Dzurilla"
>> <billdz.geo at yahoo.com> To: "jeremy-ca" <km1h at jeremy.mv.com>;
>> <sixclub at mailman.qth.net>; <smirk at mailman.qth.net>;
>> <50mhz at mailman.qth.net> Sent: Thursday, August 23, 2007 8:38 AM
>> Subject: Re: [50mhz] Workman TVI-2K Low Pass Filter - any good?
>>
>>
>>> Thanks for the offer, Carl.  I don't own one.  Was
>>> looking for a suitable filter for 6m and saw this on
>>> eBay.  But DD7ZT says it's not for 6m so I'll pass on
>>> it.  Any recommendations for a good one for 50 mhz?
>>> 73,
>>> Bill NZ5N
>>> --- jeremy-ca <km1h at jeremy.mv.com> wrote:
>>>
>>>> Send me one and I'll put it on the VNA. You pay
>>>> shipping both ways. I'd like
>>>> to create a filter database.
>>>>
>>>> Carl
>>>> KM1H
>>>>
>>>>
>>>>
>>>>
>>>> ----- Original Message ----- From: "Bill Dzurilla"
>>>> <billdz.geo at yahoo.com> To: <sixclub at mailman.qth.net>;
>>>> <smirk at mailman.qth.net>;
>>>> <50mhz at mailman.qth.net>
>>>> Sent: Thursday, August 23, 2007 12:52 AM
>>>> Subject: [50mhz] Workman TVI-2K Low Pass Filter -
>>>> any good?
>>>>
>>>>
>>>>> Anyone used this filter on 50 mhz?  Does it work
>>>> well?
>>>>> Any comments about it?
>>>>> 73, Bill NZ5N
>>>>>
>>>>>
>>>>>
>>>>>
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>
> 73, Robert KR7O/YB2ARO, DM07ba/OI52ee  (ex.  N7STU)
> kr7o at vhfdx.com
>
> www.vhfdx.com (KR7O/YB2ARO homepages)
>
>
>
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