Ventenna HFp-V User manual

HFp Antenna User’s Guide
1
80 Meter Option
User’s Guide
3.5 MHz – 54 MHz Portable Amateur Radio Antenna
The HFp Antenna
The HFp design provides a highly efficient antenna design in an extremely portable
package — the entire package eighs just over 2 pounds (1 kg). The antenna is highly
configurable, and, ith the 80 Meter Coil, covers all the Amateur bands from 80M to 6M
(as ell as most frequencies in bet een). Typical setup time is about 5 minutes.
The full 80 Meter band is covered by the HFp in overlapping segments, as seen in the
follo ing table. Typical operating band idth for each configuration is about 75 -
80KHz.
The element configurations for the different tuning segments are sho n in the 80 Meter
Configuration table, sho n next. Element 1 is al ays the bottom element, attached to the
base insulator.
HFp 80 Meter Configuration Table
Band El - 1 El - 2 El - 3 El - 4 El - 5 El – 6 El - El - 8
80m
CW
3 Stripe-
Up
80 M
Coil
2 Stripe-
Do n 1 Stripe 1 Stripe 1 Stripe 1 Stripe -
Mid 2 Stripe-
Up 1 Stripe 80 M
Coil 0 Stripe 3 Stripe-
Do n 1 Stripe 1 Stripe 1 Stripe
5M
SSB
2 Stripe-
Up 1 Stripe 80 M
Coil
3 Stripe
- Up 1 Stripe 1 Stripe 1 Stripe -
The radials should be extended to their maximum length for all 80M configurations.
The top Pull-Out-Whip should be extended to its maximum length for the 80M
setups, and adjusted as needed. Just remember that the hip doesn't have much
adjustment on 80 Meters, as seen in the table belo .
Whip Length
Band Max Min
80M - CW 3.40 3.58 MHz
Mid 3.58 3.80 MHz
5M SSB 3.80 4.06 MHz
HFp
-
V

HFp Antenna User’s Guide
The 60 Meter Band
The 80 Meter Coil also allo s the HFp to be tuned to the ne 60 Meter band. The 60
Meter channelized frequencies are: 5332, 5348, 5358.5, 5373, and 5405 kHz. (Note that,
originally, 5368 KHz as one of the channels, but it as replaced ith 5358.5 in Nov,
2011) The last channel is common to the UK amateur experimental band plan. The
follo ing setup chart is also included on the 80 Meter Laminated Card, for easy field use.
Band El - 1 El - 2 El - 3 El - 4 El - 5 El – 6 El - Whip
60M 1 Stripe 1 Stripe 3 Stripe-
Do n
2 Stripe-
Do n 1 Stripe 80 M
Coil 1 Stripe 4.5 Sect
The radials should be extended to the 9th mark for the 60M configuration. The top
Pull-Out-Whip should be extended to 4.5 sections for the 60M setup, and adjusted
as needed.
Important Note: In order to properly use the 60 Meter band, you must set your radio to
upper sideband mode, and set the carrier frequency (the frequency sho n on the radio's
display) 1.5 KHz lo er than the channel frequency.
Tuning
As usual, the configuration table should be used as a starting point. Remember that it
defines a setup on the ground and in the open, a ay from nearby objects. You may have
to adjust the mix of elements to get the antenna to perform in your specific location.
Typically, if some nearby object is lo ering its resonant frequency, moving one of the
loaded elements up (or, less desirable, removing one of the top elements) ill get the
antenna back on target. The hip can be shortened, but on the 80M band, the hip
doesn't provide much adjustment.
Use the tuning procedures described in the HFp Users Guide to check the resonant
frequency of the antenna.
Guy Lines
Guy lines are included ith the HFp for use hen it is indy, or hen the antenna ill
be left up for some time. The guy lines should al ays be used ith the 80M vertical
setup. The antenna is not heavy enough to stand up in any but the lightest breeze hen it
is configured for 80 meters.
On the lo er frequency bands you usually need to take off the top assembly of elements
in order to adjust the hip length to get the lo est SWR at your favorite frequency.
With the ne Special IEC hich allo s the element stack to rotate freely ith the Guy
Lines attached, it is easy to just unscre the stack, make an adjustment, and re-install the
element stack.
This makes hip and element adjustments on the longer setups much less of a hassle.
©2006, The Ventenna Co. LLC
Last Update: Feb, 2019