Humminbird Side Imaging Forums

Side Imaging Forums => 798c SI => Topic started by: gascop on September 30, 2015, 01:22:59 PM

Title: 798 gps antenna
Post by: gascop on September 30, 2015, 01:22:59 PM

is there a cable available to hook the 798 up to an external gps antenna ?

Title: Re: 798 gps antenna
Post by: Beaulieu80 on September 30, 2015, 03:24:48 PM

if you by the HB external GPS, the cable is with it and it is plug directly to the unit like I have done.

Title: Re: 798 gps antenna
Post by: sfw1960 on October 03, 2015, 03:11:13 PM

The AS GRP will run on an older 798ci W/ v6.300 software.
The AS HS GPS needs v 6.570 or higher so will work with the 798HD.
Both come with a 20' cable and the connector goes in the cable collector of your quick disconnect base mount.

Robert

Title: Re: 798 gps antenna
Post by: blind_sk8_16 on October 21, 2015, 11:14:36 PM

my GPS cuts in and out (no GPS fix), instead of sending out to Humminbird and them sending back to me saying there was no problem (been reading the topics and this is what I have been seeing)... I can hook a external GPS puck to it?

Title: Re: 798 gps antenna
Post by: sfw1960 on October 22, 2015, 06:07:00 AM

Quote from: sfw1960 on October 03, 2015, 03:11:13 PM

The AS GRP will run on an older 798ci W/ v6.300 software.
The AS HS GPS needs v 6.570 or higher so will work with the 798HD.
Both come with a 20' cable and the connector goes in the cable collector of your quick disconnect base mount.

Robert

READ the previous post....
You didn't specify WHICH model 798 you had, nor software version installed.
http://www.humminbird.com/Products/AS-GRP/ (http://www.humminbird.com/Products/AS-GRP/)

http://www.humminbird.com/Products/AS-GRP/ (http://www.humminbird.com/Products/AS-GRP/)

Title: Re: 798 gps antenna
Post by: rnvinc on October 22, 2015, 11:01:51 AM

Quote from: blind_sk8_16 on October 21, 2015, 11:14:36 PM

my GPS cuts in and out (no GPS fix), instead of sending out to Humminbird and them sending back to me saying there was no problem (been reading the topics and this is what I have been seeing)... I can hook a external GPS puck to it?

While it is possible to connect an external GPS to the 798 (as outlined by Robert above) ...you should 1st investigate possible power supply issues that could be present ...

Erratic GPS function is sometimes the first signs of low or inadequate power supply caused by possible battery problems or boat wiring issues ...

Rickie

Title: Re: 798 gps antenna
Post by: blind_sk8_16 on October 22, 2015, 09:44:15 PM

sorry guys, I have the 798 ci hd si with the 7.680 software

i have tried it with fresh charged batteries and i made sure the cables are tight in the mount.

Title: Re: 798 gps antenna
Post by: sfw1960 on October 22, 2015, 10:21:25 PM

it's the unseen, unwrapped connections that may be corroded and just may cause you trouble like Rickie speaks of.

Title: Re: 798 gps antenna
Post by: rnvinc on October 23, 2015, 10:50:30 PM

The quick detach base mounts have been known to give some erratic power issues themselves ...

You can dis-assemble the base mount and plug the cables directly into the unit to test if there are connection issues at the head unit itself ...

Rickie