I once grabbed a *bad* DB420 from a local two-way dealer's bone yard. The bottom of the main feed coax had been roached by lightning. But the top half of the antenna was fine. The top half of a DB420 is basically a DB408. It still works well to this day.
Laryn K8TVZ --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" <[EMAIL PROTECTED]> wrote: > > Good luck. > > The harness uses a combination of 50 and 35-ohm cable. I've never seen any > specifications on actual lengths, just some measurements that were made by > Skip that would give you a "ballpark" length. > > I agree, even with the precise measurements (if they were to be found), > weatherproofing will be a bit of a challenge. > > I've gotten replacement harnesses in the past. That will be your best > chance. Don't scrap the antenna - you never know... > > Chuck > WB2EDV > > > > ----- Original Message ----- > From: "ka9gpx" <[EMAIL PROTECTED]> > To: <Repeater-Builder@yahoogroups.com> > Sent: Monday, June 02, 2008 1:52 PM > Subject: [Repeater-Builder] Homebrew DB-408-Sort of... > > > > Hello to all, > > I recently came across a DB-408 ant.(450-470Mhz) which was "scheduled > > for demolition"...Although the Aluminum was still in tact, The phasing > > harness was gone... So,...I'm wondering... Is there a practical way to > > build a phasing harness for the antenna??? Tried to contact Andrew, as > > well as some distributors,..was told the harness has been discontinued > > may be able to be custom ordered (sounds already too expensive ;-)but > > haven't recvd. a reply yet... > > > > I did a brief search on the groups site, but found nothing with enough > > info that would allow me to re-create this harness. Also came across > > "Skipp's" diagram of the "408" on the R-B web site, but either my poor > > monitor, old printer, or weak eyes, would not allow me to ascertain > > enough info to reproduce the harness... Although I could make out most > > of the dimensions, I didn't notice what type (impedance) of cable was > > used for it. > > So I guess the short of it all is...Does anyone have the information > > available that would allow me to rebuild this harness???? > > > > I know there will be issues with "weatherproofing it"..but right > > now,I'm not too concerned about that...Just hate to see such a > > beautiful "sculpture" turned into scrap... > > > > > > > > Thanks for any thoughts, > > Carl > > KA9GPX > > > > >
