[amsat-bb] Icom 9700 1.2gig (23cm) Mode

[Ev Tupis]

 Directive Systems antennas are known to be well engineered and assembled.  I have been to many antenna ranges to find that measured results are within 0.1 dB of claimed specs.  Still, your points-of-failure include:
Icom 9700 antenna jack.  Check to make sure the center "fingers" of the N connector are not damaged or otherwise askew.
Use different coax and retest.  A problem with either connector can inject high SWR.  Ditto if the coax itself has been crushed at any point along its length.
Place a 50 ohm dummy load at the far end of the coax and retest.  If it shows low SWR, then the problem is truly with the antenna; call directive systems with this information.  They will take care of you.
Here's hoping that these suggestions help (or offer you insights that eventually lead you to a solution).
Kindly,
Ev, W2EV

    On Thursday, February 27, 2020, 7:48:21 PM EST, Sloan Davis via AMSAT-BB <amsat-bb at amsat.org> wrote:  
 
 Has anyone experienced any malfunction in transmitting on their Icom 9700 on the 1.2 gig (L-Band Mode)? My SWR’s are registering 3+ and I’ve changed antennas twice with direct connection/ connectors using N adapters. I’m using LMR 400 coaxial (50 foot) run. The power coming out of the radio is 8 watts via dummy load/meter. The antenna is from M2 and requires no tuning. 

Not sure what else I can do?

Sloan (KN4GQB
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