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Re: [IRCA] Tone Testers on 1610/1020 and 590 - Direction Finding-other options
- Subject: Re: [IRCA] Tone Testers on 1610/1020 and 590 - Direction Finding-other options
- From: Milspec390@xxxxxxx
- Date: Sun, 3 Dec 2006 17:37:39 EST
Mr. J. -
Yeah. RDF's still useful for finding one's position and inversely for
shooting lines of bearing - LOBS - to unknown sta's. Good BCB receivers as well -
sensitive, selective, run forever on D/C cells, usually include 12V car/boat
jack.
Ebay and hamfests good hunting places along w/flea markets, junk shops.
Best of lot here, Benmar 555A: tasteful late 70's beige & grey. Obtained
alignment instructions via googling but no need. Dial accurate, sensitivity &
dynamic range hot.
RDF's include Beacon Band and 'Marine Band'- usually 1600 - appx. 4500 KHz.
Many have BFO's from glory days of CONSOLAN sta's.
Simpson Aqua Meter: 80's 'hi-tech' Blue & Black w/chrome paint knobs - Yow!
Slightly less selective than Benmar yet DF bar ever so slightly sharper nulls.
As w/Benmar, has BFO & RF Gain control.
Portable, Bendix Navigator 400: no-bullshale industrial green: Sensitive,
accurate, responds well to alignment, be sure to first position DF bar coils.
Runs forever on 4 x AA's. As w/other RDFs, has real movement 'DF Level' meter and
RF gain control.
Nova-Tech Pilot II - Manufactured Bendix 400 as well. Preternatural Cold War
Black case, includes VHF Aero band. DF whips allow you to shoot lobs to
aircraft.
Apelco a vintage hi-grade name, posters surely have others.
Had Ray Jefferson ADF unit, sold some years ago. Motor drive automatically
pointed DF antenna at station & nulled it. Cool. Ray Jeff's also hi quality.
Every serious radioman should have at least one RDF.
Were ours a just society, we'd long ago have been issued them.
=Z.=
PVZ
Manadf Key, FL
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